move lots of source files around to match their actual placement in the original treemain

1 files changed, 0 insertions, 5348 deletions

diff --git a/compiler_and_linker/unsorted/InstrSelection.c b/compiler_and_linker/unsorted/InstrSelection.c
deleted file mode 100644
index 359c980..0000000
--- a/compiler_and_linker/unsorted/InstrSelection.c
+++ /dev/null
@@ -1,5348 +0,0 @@
-#include "compiler/InstrSelection.h"
-#include "compiler/CError.h"
-#include "compiler/CInt64.h"
-#include "compiler/CMachine.h"
-#include "compiler/CParser.h"
-#include "compiler/CodeGen.h"
-#include "compiler/CompilerTools.h"
-#include "compiler/FunctionCalls.h"
-#include "compiler/Intrinsics.h"
-#include "compiler/Operands.h"
-#include "compiler/PCode.h"
-#include "compiler/PCodeInfo.h"
-#include "compiler/PCodeUtilities.h"
-#include "compiler/RegisterInfo.h"
-#include "compiler/StructMoves.h"
-#include "compiler/TOC.h"
-#include "compiler/enode.h"
-#include "compiler/objects.h"
-#include "compiler/types.h"
-
-PrecomputedOperand *precomputedoperands;
-void (*cgdispatch[MAXEXPR + 1])(ENode *, short, short, Operand *);
-
-// forward decls
-static int ispowerof2(SInt32 val);
-static void binary_immediate(Opcode opcode, ENode *left, SInt32 value, short outputReg, Operand *output);
-static void shift_left_immediate(ENode *expr, short shift, short negate, short outputReg, Operand *output);
-static void shift_right_immediate(ENode *expr, Type *type, short shift, short outputReg, Operand *output);
-static void or_xor_immediate(Opcode opcode, ENode *expr, SInt32 value, short outputReg, Operand *output);
-static void signed_divide_by_power_of_2(ENode *expr, int shift, int negate, short outputReg, Operand *output);
-static void signed_mod_by_power_of_2(ENode *expr, int shift, int negate, short outputReg, Operand *output);
-static void fp_binary_operator(Opcode opcode, ENode *left, ENode *right, short outputReg, Operand *output);
-static void logical_expression_nobranch(ENode *cond, Boolean invert, Operand *output);
-static void shift_and_mask(ENode *expr, short a, short b, short c, short outputReg, Operand *output);
-static ENodeType invert_relop(ENodeType nt);
-
-#define IS_INT_CONST(node) ( ENODE_IS((node), EINTCONST) && IS_TYPE_INT((node)->rtype) && (node)->rtype->size <= 4 )
-#define IS_INT_CONST_ZERO(node) ( IS_INT_CONST(node) && (node)->data.intval.lo == 0 )
-
-void init_cgdispatch(void) {
-    ENodeType t;
-
-    for (t = 0; t <= MAXEXPR; t++)
-        cgdispatch[t] = gen_UNEXPECTED;
-
-    cgdispatch[EPOSTINC] = gen_POSTINCDEC;
-    cgdispatch[EPOSTDEC] = gen_POSTINCDEC;
-    cgdispatch[EINDIRECT] = gen_INDIRECT;
-    cgdispatch[EMONMIN] = gen_MONMIN;
-    cgdispatch[EBINNOT] = gen_BINNOT;
-    cgdispatch[ELOGNOT] = gen_LOGICAL;
-    cgdispatch[EFORCELOAD] = gen_FORCELOAD;
-    cgdispatch[EMUL] = gen_MUL;
-    cgdispatch[EDIV] = gen_DIV;
-    cgdispatch[EMODULO] = gen_MODULO;
-    cgdispatch[EADD] = gen_ADD;
-    cgdispatch[ESUB] = gen_SUB;
-    cgdispatch[ESHL] = gen_SHL;
-    cgdispatch[ESHR] = gen_SHR;
-    cgdispatch[ELESS] = gen_COMPARE;
-    cgdispatch[EGREATER] = gen_COMPARE;
-    cgdispatch[ELESSEQU] = gen_COMPARE;
-    cgdispatch[EGREATEREQU] = gen_COMPARE;
-    cgdispatch[EEQU] = gen_COMPARE;
-    cgdispatch[ENOTEQU] = gen_COMPARE;
-    cgdispatch[EAND] = gen_AND;
-    cgdispatch[EXOR] = gen_XOR;
-    cgdispatch[EOR] = gen_OR;
-    cgdispatch[ELAND] = gen_LOGICAL;
-    cgdispatch[ELOR] = gen_LOGICAL;
-    cgdispatch[EASS] = gen_ASS;
-    cgdispatch[ECOMMA] = gen_COMMA;
-    cgdispatch[ETYPCON] = gen_TYPCON;
-    cgdispatch[EBITFIELD] = gen_BITFIELD;
-    cgdispatch[EINTCONST] = gen_INTCONST;
-    cgdispatch[EFLOATCONST] = gen_FLOATCONST;
-    cgdispatch[ESTRINGCONST] = gen_STRINGCONST;
-    cgdispatch[ECOND] = gen_COND;
-    cgdispatch[EFUNCCALL] = gen_FUNCCALL;
-    cgdispatch[EFUNCCALLP] = gen_FUNCCALL;
-    cgdispatch[EOBJREF] = gen_OBJREF;
-    cgdispatch[ENULLCHECK] = gen_NULLCHECK;
-    cgdispatch[EPRECOMP] = gen_PRECOMP;
-    cgdispatch[EDEFINE] = gen_DEFINE;
-    cgdispatch[EREUSE] = gen_REUSE;
-    cgdispatch[EVECTOR128CONST] = gen_VECTOR128CONST;
-    cgdispatch[ECONDASS] = gen_CONDASS;
-}
-
-void gen_DEFINE(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Operand *op;
-
-    if (!expr->data.diadic.right) {
-        op = lalloc(sizeof(Operand));
-        memclrw(op, sizeof(Operand));
-        expr->data.diadic.right = (ENode *) op;
-        GEN_NODE(expr->data.diadic.left, op);
-    }
-
-    op = (Operand *) expr->data.diadic.right;
-    *output = *op;
-}
-
-void gen_REUSE(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner = expr->data.monadic;
-    CError_ASSERT(250, ENODE_IS(inner, EDEFINE));
-    gen_DEFINE(inner, outputReg, outputRegHi, output);
-}
-
-void gen_POSTINCDEC(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    TypeBitfield *tbitfield;
-    ENode *inner;
-    Type *type;
-    Operand a;
-    Operand b;
-    Operand c;
-    Float fval;
-    int objReg;
-    int constReg;
-    int finalReg;
-    SInt32 incval;
-
-    inner = expr->data.monadic->data.monadic;
-    type = expr->rtype;
-    tbitfield = NULL;
-
-    memclrw(&a, sizeof(Operand));
-    memclrw(&b, sizeof(Operand));
-    memclrw(&c, sizeof(Operand));
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_POSTINCDEC(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (IS_TYPE_FLOAT(type)) {
-        if (ENODE_IS(inner, EOBJREF) && (objReg = OBJECT_REG(inner->data.objref))) {
-            output->optype = OpndType_FPR;
-            output->reg = (outputReg && outputReg != objReg) ? outputReg : ALLOC_FPR();
-            emitpcode(PC_FMR, output->reg, objReg);
-            fval = one_point_zero;
-            load_floating_constant(constReg = ALLOC_FPR(), type, &fval);
-
-            if (ENODE_IS(expr, EPOSTINC)) {
-                emitpcode((type->size == 4) ? PC_FADDS : PC_FADD, objReg, objReg, constReg);
-            } else {
-                emitpcode((type->size == 4) ? PC_FSUBS : PC_FSUB, objReg, objReg, constReg);
-            }
-        } else {
-            GEN_NODE(inner, &a);
-            indirect(&a, inner);
-            b = a;
-            ENSURE_FPR(&b, type, 0);
-
-            output->optype = OpndType_FPR;
-            output->reg = ALLOC_FPR();
-            emitpcode(PC_FMR, output->reg, b.reg);
-
-            fval = one_point_zero;
-            load_floating_constant(constReg = ALLOC_FPR(), type, &fval);
-
-            finalReg = ALLOC_FPR();
-            if (ENODE_IS(expr, EPOSTINC))
-                emitpcode((type->size == 4) ? PC_FADDS : PC_FADD, finalReg, b.reg, constReg);
-            else
-                emitpcode((type->size == 4) ? PC_FSUBS : PC_FSUB, finalReg, b.reg, constReg);
-
-            store_fp(finalReg, &a, type);
-        }
-    } else {
-        if (IS_TYPE_POINTER(type)) {
-            if (ENODE_IS(expr, EPOSTINC))
-                incval = TPTR_TARGET(type)->size;
-            else
-                incval = -TPTR_TARGET(type)->size;
-        } else {
-            if (ENODE_IS(expr, EPOSTINC))
-                incval = 1;
-            else
-                incval = -1;
-        }
-
-        if (ENODE_IS(inner, EOBJREF) && (objReg = OBJECT_REG(inner->data.objref))) {
-            output->optype = OpndType_GPR;
-            output->reg = (outputReg && outputReg != objReg) ? outputReg : ALLOC_GPR();
-            emitpcode(PC_MR, output->reg, objReg);
-            add_register_immediate(objReg, objReg, incval);
-        } else {
-            if (ENODE_IS(inner, EBITFIELD)) {
-                tbitfield = TYPE_BITFIELD(TPTR_TARGET(inner));
-                inner = inner->data.monadic;
-            }
-            GEN_NODE(inner, &a);
-            indirect(&a, inner);
-            b = a;
-            ENSURE_GPR(&b, type, 0);
-
-            if (tbitfield) {
-                c = b;
-                extract_bitfield(&c, tbitfield, 0, &b);
-            }
-            output->optype = OpndType_GPR;
-
-            output->reg = ALLOC_GPR();
-            emitpcode(PC_MR, output->reg, b.reg);
-
-            finalReg = ALLOC_GPR();
-            add_register_immediate(finalReg, b.reg, incval);
-
-            if (tbitfield) {
-                insert_bitfield(finalReg, &c, tbitfield);
-                finalReg = c.reg;
-            }
-
-            store(finalReg, &a, type);
-        }
-    }
-}
-
-void gen_INDIRECT(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *type;
-    ENode *inner;
-    VarInfo *vi;
-    SInt32 postincvalue;
-    Operand op;
-
-    type = expr->rtype;
-    inner = expr->data.monadic;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_INDIRECT(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    memclrw(&op, sizeof(Operand));
-    if (ENODE_IS(inner, EOBJREF) && OBJECT_REG(inner->data.objref)) {
-        vi = Registers_GetVarInfo(inner->data.objref);
-        switch (vi->rclass) {
-            case RegClass_GPR:
-                output->optype = OpndType_GPR;
-                break;
-            case RegClass_FPR:
-                output->optype = OpndType_FPR;
-                break;
-            case RegClass_VR:
-                output->optype = OpndType_VR;
-                break;
-            case RegClass_CRFIELD:
-                output->optype = OpndType_CRField;
-                break;
-            default:
-                CError_FATAL(456);
-        }
-        output->reg = vi->reg;
-        output->object = NULL;
-        return;
-    }
-
-    if (ENODE_IS(inner, EBITFIELD)) {
-        GEN_NODE(inner->data.monadic, &op);
-        indirect(&op, expr);
-        ENSURE_GPR(&op, type, 0);
-        extract_bitfield(&op, TYPE_BITFIELD(inner->rtype), outputReg, output);
-        return;
-    }
-
-    if (ispostincrementopportunity(inner, &op, &postincvalue) && (TYPE_FITS_IN_REGISTER(type) || IS_TYPE_FLOAT(type) || IS_TYPE_VECTOR(type))) {
-        indirect(&op, expr);
-        *output = op;
-        if (TYPE_FITS_IN_REGISTER(type)) {
-            ENSURE_GPR(output, type, outputReg);
-        } else if (IS_TYPE_FLOAT(type)) {
-            ENSURE_FPR(output, type, outputReg);
-        } else {
-            ENSURE_VR(output, type, outputReg);
-        }
-
-        add_register_immediate(op.reg, op.reg, postincvalue);
-        return;
-    }
-
-    GEN_NODE(inner, output);
-    indirect(output, expr);
-}
-
-void gen_MONMIN(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-    Type *type;
-    ENode *scan;
-
-    inner = expr->data.monadic;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_MONMIN(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (IS_TYPE_FLOAT(type)) {
-        if (ENODE_IS(inner, EADD) && ENODE_IS(inner->data.diadic.left, EMUL) && copts.fp_contract) {
-            fp_multiply_add(
-                    (type->size == 4) ? PC_FNMADDS : PC_FNMADD,
-                    inner->data.diadic.left->data.diadic.left,
-                    inner->data.diadic.left->data.diadic.right,
-                    inner->data.diadic.right,
-                    outputReg,
-                    output);
-        } else if (ENODE_IS(inner, EADD) && ENODE_IS(inner->data.diadic.right, EMUL) && copts.fp_contract) {
-            fp_multiply_add(
-                    (type->size == 4) ? PC_FNMADDS : PC_FNMADD,
-                    inner->data.diadic.right->data.diadic.left,
-                    inner->data.diadic.right->data.diadic.right,
-                    inner->data.diadic.left,
-                    outputReg,
-                    output);
-        } else if (ENODE_IS(inner, ESUB) && ENODE_IS(inner->data.diadic.left, EMUL) && copts.fp_contract) {
-            fp_multiply_add(
-                    (type->size == 4) ? PC_FNMSUBS : PC_FNMSUB,
-                    inner->data.diadic.left->data.diadic.left,
-                    inner->data.diadic.left->data.diadic.right,
-                    inner->data.diadic.right,
-                    outputReg,
-                    output);
-        } else {
-            fp_unary_operator(PC_FNEG, inner, outputReg, output);
-        }
-        return;
-    }
-
-    scan = inner;
-    while (ENODE_IS(scan, ETYPCON) && IS_TYPE_INT_OR_ENUM(type) && !is_unsigned(type))
-        scan = scan->data.monadic;
-
-    switch (scan->type) {
-        case ELESS:
-        case EGREATER:
-        case ELESSEQU:
-        case EGREATEREQU:
-        case EEQU:
-        case ENOTEQU:
-            if (TYPE_FITS_IN_REGISTER(scan->data.diadic.left->rtype) && TYPE_FITS_IN_REGISTER(scan->data.diadic.right->rtype)) {
-                gen_negated_condition_gpr(scan, output, outputReg);
-                return;
-            }
-    }
-    unary_operator(PC_NEG, inner, outputReg, output);
-}
-
-void gen_BINNOT(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-    Type *type;
-
-    inner = expr->data.monadic;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_BINNOT(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (ENODE_IS(inner, EAND))
-        binary_operator(PC_NAND, inner->data.diadic.left, inner->data.diadic.right, outputReg, output);
-    else if (ENODE_IS(inner, EOR))
-        binary_operator(PC_NOR, inner->data.diadic.left, inner->data.diadic.right, outputReg, output);
-    else if (ENODE_IS(inner, EXOR))
-        binary_operator(PC_EQV, inner->data.diadic.left, inner->data.diadic.right, outputReg, output);
-    else
-        unary_operator(PC_NOT, inner, outputReg, output);
-}
-
-void gen_FORCELOAD(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-
-    inner = expr->data.monadic;
-    GEN_NODE(inner, output);
-
-    if (IS_TYPE_FLOAT(inner->rtype)) {
-        ENSURE_FPR(output, inner->rtype, outputReg);
-    } else if (IS_TYPE_VECTOR(inner->rtype)) {
-        ENSURE_VR(output, inner->rtype, outputReg);
-    } else if (TYPE_FITS_IN_REGISTER(inner->rtype)) {
-        if (TYPE_IS_8BYTES(inner->rtype))
-            coerce_to_register_pair(output, inner->rtype, outputReg, outputRegHi);
-        else
-            ENSURE_GPR(output, inner->rtype, outputReg);
-    } else if (!IS_TYPE_VOID(inner->rtype)) {
-        CError_FATAL(681);
-    }
-}
-
-void gen_MUL(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    Type *type;
-    int tmp;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_MUL(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (IS_TYPE_FLOAT(type)) {
-        fp_binary_operator((type->size == 4) ? PC_FMULS : PC_FMUL, left, right, outputReg, output);
-        return;
-    }
-
-    if (ENODE_IS(right, EINTCONST) && (tmp = ispowerof2(right->data.intval.lo))) {
-        shift_left_immediate(left, tmp, 0, outputReg, output);
-    } else if (ENODE_IS(right, EINTCONST) && (tmp = ispowerof2(-right->data.intval.lo))) {
-        shift_left_immediate(left, tmp, 1, outputReg, output);
-    } else if (ENODE_IS(left, EINTCONST) && (tmp = ispowerof2(left->data.intval.lo))) {
-        shift_left_immediate(right, tmp, 0, outputReg, output);
-    } else if (ENODE_IS(left, EINTCONST) && (tmp = ispowerof2(-left->data.intval.lo))) {
-        shift_left_immediate(right, tmp, 1, outputReg, output);
-    } else if (ENODE_IS(right, EINTCONST) && FITS_IN_SHORT(right->data.intval.lo)) {
-        binary_immediate(PC_MULLI, left, right->data.intval.lo, outputReg, output);
-    } else if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT(left->data.intval.lo)) {
-        binary_immediate(PC_MULLI, right, left->data.intval.lo, outputReg, output);
-    } else {
-        binary_operator(PC_MULLW, left, right, outputReg, output);
-    }
-}
-
-struct ms {
-    SInt32 m;
-    int s;
-};
-static void create_signed_magic(SInt32 val, struct ms *output) {
-    // PowerPC CWG page 57-58
-    int p;
-    UInt32 ad, anc, delta, q1, r1, q2, r2, t;
-
-    ad = abs(val);
-    t = 0x80000000U + ((UInt32) val >> 31);
-    anc = t - 1 - t % ad;
-    p = 31;
-    q1 = 0x80000000U / anc;
-    r1 = 0x80000000U - q1 * anc;
-    q2 = 0x80000000U / ad;
-    r2 = 0x80000000U - q2 * ad;
-
-    do {
-        p = p + 1;
-        q1 = 2 * q1;
-        r1 = 2 * r1;
-        if (r1 >= anc) {
-            q1 = q1 + 1;
-            r1 = r1 - anc;
-        }
-        q2 = 2 * q2;
-        r2 = 2 * r2;
-        if (r2 >= ad) {
-            q2 = q2 + 1;
-            r2 = r2 - ad;
-        }
-        delta = ad - r2;
-    } while (q1 < delta || (q1 == delta && r1 == 0));
-
-    // after loop
-    output->m = q2 + 1;
-    if (val < 0)
-        output->m = -output->m;
-    output->s = p - 32;
-}
-
-struct mu {
-    UInt32 m;
-    int a;
-    int s;
-};
-static void create_unsigned_magic(UInt32 val, struct mu *output) {
-    // PowerPC CWG page 58-59
-    int p;
-    UInt32 nc, delta, q1, r1, q2, r2;
-
-    output->a = 0;
-    nc = - 1 - (-val) % val;
-    p = 31;
-    q1 = 0x80000000U / nc;
-    r1 = 0x80000000U - q1 * nc;
-    q2 = 0x7FFFFFFFU / val;
-    r2 = 0x7FFFFFFFU - q2 * val;
-    do {
-        p = p + 1;
-        if (r1 >= nc - r1) {
-            q1 = 2 * q1 + 1;
-            r1 = 2 * r1 - nc;
-        } else {
-            q1 = 2 * q1;
-            r1 = 2 * r1;
-        }
-        if (r2 + 1 >= val - r2) {
-            if (q2 >= 0x7FFFFFFFU)
-                output->a = 1;
-            q2 = 2 * q2 + 1;
-            r2 = 2 * r2 + 1 - val;
-        } else {
-            if (q2 >= 0x80000000U)
-                output->a = 1;
-            q2 = 2 * q2;
-            r2 = 2 * r2 + 1;
-        }
-        delta = val - 1 - r2;
-    } while (p < 64 && (q1 < delta || (q1 == delta && r1 == 0)));
-
-    output->m = q2 + 1;
-    output->s = p - 32;
-}
-
-void gen_DIV(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    Type *type;
-    int tmp;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_DIV_MOD(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (IS_TYPE_FLOAT(type)) {
-        fp_binary_operator((type->size == 4) ? PC_FDIVS : PC_FDIV, left, right, outputReg, output);
-        return;
-    }
-
-    if (is_unsigned(type)) {
-        if (ENODE_IS(right, EINTCONST) && (tmp = ispowerof2(right->data.intval.lo))) {
-            shift_right_immediate(left, type, tmp, outputReg, output);
-        } else if (!copts.optimizesize && ENODE_IS(right, EINTCONST) && right->data.intval.lo != 1) {
-            SInt32 value;
-            int tmpreg1;
-            int tmpreg2;
-            int tmpreg3;
-            int tmpreg4;
-            int tmpreg5;
-            int tmpreg6;
-            int finalReg;
-            struct mu u_magicoutput;
-            Operand op1;
-            value = right->data.intval.lo;
-            tmpreg1 = ALLOC_GPR();
-            tmpreg2 = ALLOC_GPR();
-            finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-            memclrw(&op1, sizeof(Operand));
-            GEN_NODE(left, &op1);
-            ENSURE_GPR(&op1, left->rtype, 0);
-
-            tmpreg3 = op1.reg;
-            create_unsigned_magic(value, &u_magicoutput);
-            load_immediate(tmpreg2, u_magicoutput.m);
-            emitpcode(PC_MULHWU, tmpreg1, tmpreg2, tmpreg3);
-            if (u_magicoutput.a == 0) {
-                if (u_magicoutput.s)
-                    emitpcode(PC_RLWINM, finalReg, tmpreg1, (32 - u_magicoutput.s) & 31, u_magicoutput.s, 31);
-                else
-                    emitpcode(PC_MR, finalReg, tmpreg1);
-            } else if (u_magicoutput.a == 1) {
-                tmpreg4 = ALLOC_GPR();
-                if (copts.optimizationlevel > 1) {
-                    tmpreg5 = ALLOC_GPR();
-                    tmpreg6 = ALLOC_GPR();
-                } else {
-                    tmpreg5 = tmpreg4;
-                    tmpreg6 = tmpreg4;
-                }
-
-                emitpcode(PC_SUBF, tmpreg4, tmpreg1, tmpreg3);
-                emitpcode(PC_RLWINM, tmpreg5, tmpreg4, 31, 1, 31);
-                emitpcode(PC_ADD, tmpreg6, tmpreg5, tmpreg1);
-                emitpcode(PC_RLWINM, finalReg, tmpreg6, (32 - (u_magicoutput.s - 1)) & 31, u_magicoutput.s - 1, 31);
-            }
-
-            output->optype = OpndType_GPR;
-            output->reg = finalReg;
-        } else {
-            binary_operator(PC_DIVWU, left, right, outputReg, output);
-        }
-    } else {
-        SInt32 value;
-        if (ENODE_IS(right, EINTCONST) && (tmp = ispowerof2(right->data.intval.lo))) {
-            signed_divide_by_power_of_2(left, tmp, 0, outputReg, output);
-        } else if (ENODE_IS(right, EINTCONST) && (tmp = ispowerof2(-right->data.intval.lo))) {
-            signed_divide_by_power_of_2(left, tmp, 1, outputReg, output);
-        } else if (!copts.optimizesize && ENODE_IS(right, EINTCONST) && (value = right->data.intval.lo) != 1u && value != -1) {
-            int tmpreg2;
-            int tmpreg3;
-            int tmpreg1;
-            int tmpreg4;
-            int finalReg;
-            struct ms s_magicoutput;
-            Operand op2;
-            value = right->data.intval.lo;
-            tmpreg1 = ALLOC_GPR();
-            tmpreg2 = ALLOC_GPR();
-            tmpreg3 = ALLOC_GPR();
-            finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-            memclrw(&op2, sizeof(Operand));
-            GEN_NODE(left, &op2);
-            ENSURE_GPR(&op2, left->rtype, 0);
-
-            tmpreg4 = op2.reg;
-            create_signed_magic(value, &s_magicoutput);
-            load_immediate(tmpreg2, s_magicoutput.m);
-            emitpcode(PC_MULHW, tmpreg1, tmpreg2, tmpreg4);
-            if (value > 0 && s_magicoutput.m < 0) {
-                int t = ALLOC_GPR();
-                emitpcode(PC_ADD, t, tmpreg1, tmpreg4);
-                tmpreg1 = t;
-            } else if (value < 0 && s_magicoutput.m > 0) {
-                int t = ALLOC_GPR();
-                emitpcode(PC_SUBF, t, tmpreg4, tmpreg1);
-                tmpreg1 = t;
-            }
-
-            if (s_magicoutput.s) {
-                int t = ALLOC_GPR();
-                emitpcode(PC_SRAWI, t, tmpreg1, s_magicoutput.s);
-                tmpreg1 = t;
-            }
-
-            emitpcode(PC_RLWINM, tmpreg3, tmpreg1, 1, 31, 31);
-            emitpcode(PC_ADD, finalReg, tmpreg1, tmpreg3);
-
-            output->optype = OpndType_GPR;
-            output->reg = finalReg;
-        } else {
-            binary_operator(PC_DIVW, left, right, outputReg, output);
-        }
-    }
-}
-
-void gen_MODULO(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    int tmp;
-    struct mu u_magicoutput;
-    struct ms s_magicoutput;
-    Operand op1;
-    Operand op2;
-    SInt32 value;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&op1, sizeof(Operand));
-    memclrw(&op2, sizeof(Operand));
-
-    if (TYPE_IS_8BYTES(expr->rtype)) {
-        I8_gen_DIV_MOD(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (ENODE_IS(right, EINTCONST) && (tmp = ispowerof2(right->data.intval.lo))) {
-        if (is_unsigned(expr->rtype))
-            shift_and_mask(left, 0, 32 - tmp, 31, outputReg, output);
-        else
-            signed_mod_by_power_of_2(left, tmp, 0, outputReg, output);
-    } else if (!copts.optimizesize && ENODE_IS(right, EINTCONST) && (value = right->data.intval.lo) != 1u && value != -1) {
-        GEN_NODE(left, &op1);
-        ENSURE_GPR(&op1, left->rtype, 0);
-
-        if (is_unsigned(expr->rtype)) {
-            int tmpreg1;
-            int tmpreg2;
-            int tmpreg3;
-            int tmpreg4;
-            int tmpreg5;
-            int tmpreg6;
-            int tmpreg7;
-            int tmpreg8;
-            int finalReg;
-
-            tmpreg1 = op1.reg;
-            tmpreg2 = ALLOC_GPR();
-            tmpreg3 = ALLOC_GPR();
-            tmpreg4 = ALLOC_GPR();
-            finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-            create_unsigned_magic(right->data.intval.lo, &u_magicoutput);
-            load_immediate(tmpreg3, u_magicoutput.m);
-            emitpcode(PC_MULHWU, tmpreg2, tmpreg3, tmpreg1);
-
-            if (u_magicoutput.a == 0 && u_magicoutput.s != 0)
-                emitpcode(PC_RLWINM, tmpreg2, tmpreg2, (32 - u_magicoutput.s) & 31, u_magicoutput.s, 31);
-
-            if (u_magicoutput.a == 1) {
-                tmpreg5 = ALLOC_GPR();
-                if (copts.optimizationlevel > 1) {
-                    tmpreg6 = ALLOC_GPR();
-                    tmpreg7 = ALLOC_GPR();
-                    tmpreg8 = ALLOC_GPR();
-                } else {
-                    tmpreg6 = tmpreg5;
-                    tmpreg7 = tmpreg5;
-                    tmpreg8 = tmpreg5;
-                }
-                emitpcode(PC_SUBF, tmpreg5, tmpreg2, tmpreg1);
-                emitpcode(PC_RLWINM, tmpreg6, tmpreg5, 31, 1, 31);
-                emitpcode(PC_ADD, tmpreg7, tmpreg6, tmpreg2);
-                emitpcode(PC_RLWINM, tmpreg8, tmpreg7, (32 - (u_magicoutput.s - 1)) & 31, u_magicoutput.s - 1, 31);
-                tmpreg2 = tmpreg8;
-            }
-
-            if (value > 0 && value < 0x7FFF) {
-                emitpcode(PC_MULLI, tmpreg4, tmpreg2, value);
-            } else {
-                GEN_NODE(right, &op2);
-                ENSURE_GPR(&op2, right->rtype, 0);
-                emitpcode(PC_MULLW, tmpreg4, tmpreg2, op2.reg);
-            }
-
-            emitpcode(PC_SUBF, finalReg, tmpreg4, tmpreg1);
-            output->optype = OpndType_GPR;
-            output->reg = finalReg;
-        } else {
-            int tmpreg1;
-            int tmpreg2;
-            int tmpreg3;
-            int tmpreg4;
-            int tmpreg5;
-            int tmpreg6;
-            int finalReg;
-
-            tmpreg1 = op1.reg;
-            tmpreg2 = ALLOC_GPR();
-            tmpreg3 = ALLOC_GPR();
-            tmpreg4 = ALLOC_GPR();
-            tmpreg5 = ALLOC_GPR();
-            tmpreg6 = ALLOC_GPR();
-            finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-            create_signed_magic(right->data.intval.lo, &s_magicoutput);
-            load_immediate(tmpreg3, s_magicoutput.m);
-            emitpcode(PC_MULHW, tmpreg2, tmpreg3, tmpreg1);
-
-            if (value > 0 && s_magicoutput.m < 0) {
-                int tmp = ALLOC_GPR();
-                emitpcode(PC_ADD, tmp, tmpreg2, tmpreg1);
-                tmpreg2 = tmp;
-            } else if (value < 0 && s_magicoutput.m > 0) {
-                int tmp = ALLOC_GPR();
-                emitpcode(PC_SUBF, tmp, tmpreg1, tmpreg2);
-                tmpreg2 = tmp;
-            }
-
-            if (s_magicoutput.s != 0) {
-                int tmp = ALLOC_GPR();
-                emitpcode(PC_SRAWI, tmp, tmpreg2, s_magicoutput.s);
-                tmpreg2 = tmp;
-            }
-
-            emitpcode(PC_RLWINM, tmpreg4, tmpreg2, 1, 31, 31);
-            emitpcode(PC_ADD, tmpreg5, tmpreg2, tmpreg4);
-
-            if (value < 0x7FFF && value > -0x4000) {
-                emitpcode(PC_MULLI, tmpreg6, tmpreg5, value);
-            } else {
-                GEN_NODE(right, &op2);
-                ENSURE_GPR(&op2, right->rtype, 0);
-
-                emitpcode(PC_MULLW, tmpreg6, tmpreg5, op2.reg);
-            }
-
-            emitpcode(PC_SUBF, finalReg, tmpreg6, tmpreg1);
-            output->optype = OpndType_GPR;
-            output->reg = finalReg;
-        }
-    } else {
-        int tmpreg1;
-        int tmpreg2;
-        int finalReg;
-
-        if (right->hascall) {
-            GEN_NODE(right, &op2);
-            ENSURE_GPR(&op2, right->rtype, 0);
-            GEN_NODE(left, &op1);
-            ENSURE_GPR(&op1, left->rtype, 0);
-        } else {
-            GEN_NODE(left, &op1);
-            ENSURE_GPR(&op1, left->rtype, 0);
-            GEN_NODE(right, &op2);
-            ENSURE_GPR(&op2, right->rtype, 0);
-        }
-
-        tmpreg1 = ALLOC_GPR();
-        tmpreg2 = ALLOC_GPR();
-        finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-        emitpcode(is_unsigned(expr->rtype) ? PC_DIVWU : PC_DIVW, tmpreg1, op1.reg, op2.reg);
-        emitpcode(PC_MULLW, tmpreg2, tmpreg1, op2.reg);
-        emitpcode(PC_SUBF, finalReg, tmpreg2, op1.reg);
-
-        output->optype = OpndType_GPR;
-        output->reg = finalReg;
-    }
-}
-
-void gen_ADD(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    Type *type;
-    Operand opleft;
-    Operand opright;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_ADD(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (IS_TYPE_FLOAT(type)) {
-        if (ENODE_IS(left, EMUL) && copts.fp_contract) {
-            fp_multiply_add(
-                    (type->size == 4) ? PC_FMADDS : PC_FMADD,
-                    left->data.diadic.left,
-                    left->data.diadic.right,
-                    right,
-                    outputReg, output);
-        } else if (ENODE_IS(right, EMUL) && copts.fp_contract) {
-            fp_multiply_add(
-                    (type->size == 4) ? PC_FMADDS : PC_FMADD,
-                    right->data.diadic.left,
-                    right->data.diadic.right,
-                    left,
-                    outputReg, output);
-        } else {
-            fp_binary_operator(
-                    (type->size == 4) ? PC_FADDS : PC_FADD,
-                    left, right,
-                    outputReg, output);
-        }
-        return;
-    }
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        if (opright.optype >= OpndType_IndirectGPR_ImmOffset)
-            ENSURE_GPR(&opright, right->rtype, 0);
-
-        GEN_NODE(left, &opleft);
-        if (opleft.optype >= OpndType_IndirectGPR_ImmOffset)
-            ENSURE_GPR(&opleft, left->rtype, 0);
-    } else {
-        GEN_NODE(left, &opleft);
-        if (opleft.optype >= OpndType_IndirectGPR_ImmOffset)
-            ENSURE_GPR(&opleft, left->rtype, 0);
-
-        GEN_NODE(right, &opright);
-        if (opright.optype >= OpndType_IndirectGPR_ImmOffset)
-            ENSURE_GPR(&opright, right->rtype, 0);
-    }
-
-    if (IS_TYPE_POINTER(expr->rtype)) {
-        if (TYPE_IS_8BYTES(expr->data.diadic.left->rtype)) {
-            opleft.optype = OpndType_GPR;
-            opleft.regHi = 0;
-        }
-        if (TYPE_IS_8BYTES(expr->data.diadic.right->rtype)) {
-            opright.optype = OpndType_GPR;
-            opright.regHi = 0;
-        }
-    }
-
-    combine(&opleft, &opright, outputReg, output);
-}
-
-void gen_SUB(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    Type *type;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_SUB(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (IS_TYPE_FLOAT(type)) {
-        if (ENODE_IS(left, EMUL) && copts.fp_contract) {
-            fp_multiply_add(
-                    (type->size == 4) ? PC_FMSUBS : PC_FMSUB,
-                    left->data.diadic.left,
-                    left->data.diadic.right,
-                    right,
-                    outputReg, output);
-        } else if (ENODE_IS(right, EMUL) && copts.fp_contract) {
-            fp_multiply_add(
-                    (type->size == 4) ? PC_FNMSUBS : PC_FNMSUB,
-                    right->data.diadic.left,
-                    right->data.diadic.right,
-                    left,
-                    outputReg, output);
-        } else {
-            fp_binary_operator(
-                    (type->size == 4) ? PC_FSUBS : PC_FSUB,
-                    left, right,
-                    outputReg, output);
-        }
-        return;
-    }
-
-    if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT(left->data.intval.lo))
-        binary_immediate(PC_SUBFIC, right, left->data.intval.lo, outputReg, output);
-    else
-        binary_operator(PC_SUBF, right, left, outputReg, output);
-}
-
-void gen_SHL(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *type;
-    ENode *left;
-    ENode *right;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_SHL_SHR(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (ENODE_IS(right, EINTCONST))
-        shift_left_immediate(left, right->data.intval.lo, 0, outputReg, output);
-    else
-        binary_operator(PC_SLW, left, right, outputReg, output);
-}
-
-void gen_SHR(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *type;
-    ENode *left;
-    ENode *right;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_SHL_SHR(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (ENODE_IS(right, EINTCONST))
-        shift_right_immediate(left, type, right->data.intval.lo, outputReg, output);
-    else
-        binary_operator(is_unsigned(type) ? PC_SRW : PC_SRAW, left, right, outputReg, output);
-}
-
-void gen_AND(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *type;
-    ENode *left;
-    ENode *right;
-    short first;
-    short last;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_AND(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (ENODE_IS(right, EINTCONST) && ismaskconstant(right->data.intval.lo, &first, &last)) {
-        if (ENODE_IS(left, ESHL) && ENODE_IS(left->data.diadic.right, EINTCONST) && (int)(left->data.diadic.right->data.intval.lo + last) < 32) {
-            shift_and_mask(
-                    left->data.diadic.left,
-                    left->data.diadic.right->data.intval.lo,
-                    first, last,
-                    outputReg, output);
-        } else if (ENODE_IS(left, ESHR) && ENODE_IS(left->data.diadic.right, EINTCONST) && (int)left->data.diadic.right->data.intval.lo <= first && last >= first) {
-            if (left->data.diadic.right->data.intval.lo == 0)
-                shift_and_mask(left->data.diadic.left, 0, first, last, outputReg, output);
-            else
-                shift_and_mask(left->data.diadic.left, 32 - left->data.diadic.right->data.intval.lo, first, last, outputReg, output);
-        } else {
-            shift_and_mask(left, 0, first, last, outputReg, output);
-        }
-        return;
-    }
-
-    if (ENODE_IS(right, EINTCONST) && FITS_IN_USHORT(right->data.intval.lo)) {
-        binary_immediate(PC_ANDI, left, right->data.intval.lo, outputReg, output);
-        return;
-    }
-    if (ENODE_IS(right, EINTCONST) && FITS_IN_HI_SHORT(right->data.intval.lo)) {
-        binary_immediate(PC_ANDIS, left, right->data.intval.lo >> 16, outputReg, output);
-        return;
-    }
-
-    if (ENODE_IS(left, EINTCONST) && ismaskconstant(left->data.intval.lo, &first, &last)) {
-        if (ENODE_IS(right, ESHL) && ENODE_IS(right->data.diadic.right, EINTCONST) && (int)(right->data.diadic.right->data.intval.lo + last) < 32) {
-            shift_and_mask(
-                    right->data.diadic.left,
-                    right->data.diadic.right->data.intval.lo,
-                    first, last,
-                    outputReg, output);
-        } else if (ENODE_IS(right, ESHR) && ENODE_IS(right->data.diadic.right, EINTCONST) && (int)right->data.diadic.right->data.intval.lo <= first) {
-            if (right->data.diadic.right->data.intval.lo == 0)
-                shift_and_mask(right->data.diadic.left, 0, first, last, outputReg, output);
-            else
-                shift_and_mask(right->data.diadic.left, 32 - right->data.diadic.right->data.intval.lo, first, last, outputReg, output);
-        } else {
-            shift_and_mask(right, 0, first, last, outputReg, output);
-        }
-        return;
-    }
-
-    if (ENODE_IS(left, EINTCONST) && FITS_IN_USHORT(left->data.intval.lo)) {
-        binary_immediate(PC_ANDI, right, left->data.intval.lo, outputReg, output);
-        return;
-    }
-    if (ENODE_IS(left, EINTCONST) && FITS_IN_HI_SHORT(left->data.intval.lo)) {
-        binary_immediate(PC_ANDIS, right, left->data.intval.lo >> 16, outputReg, output);
-        return;
-    }
-
-    if (ENODE_IS(right, EBINNOT))
-        binary_operator(PC_ANDC, left, right->data.monadic, outputReg, output);
-    else if (ENODE_IS(left, EBINNOT))
-        binary_operator(PC_ANDC, right, left->data.monadic, outputReg, output);
-    else
-        binary_operator(PC_AND, left, right, outputReg, output);
-}
-
-void gen_XOR(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *type;
-    ENode *left;
-    ENode *right;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_XOR(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (ENODE_IS(left, EINTCONST))
-        or_xor_immediate(PC_XORI, right, left->data.intval.lo, outputReg, output);
-    else if (ENODE_IS(right, EINTCONST))
-        or_xor_immediate(PC_XORI, left, right->data.intval.lo, outputReg, output);
-    else if (ENODE_IS(right, EBINNOT))
-        binary_operator(PC_EQV, left, right->data.monadic, outputReg, output);
-    else if (ENODE_IS(left, EBINNOT))
-        binary_operator(PC_EQV, left->data.monadic, right, outputReg, output);
-    else
-        binary_operator(PC_XOR, left, right, outputReg, output);
-}
-
-void gen_OR(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *type;
-    ENode *left;
-    ENode *right;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    type = expr->rtype;
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_OR(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (ENODE_IS(left, EINTCONST))
-        or_xor_immediate(PC_ORI, right, left->data.intval.lo, outputReg, output);
-    else if (ENODE_IS(right, EINTCONST))
-        or_xor_immediate(PC_ORI, left, right->data.intval.lo, outputReg, output);
-    else if (ENODE_IS(right, EBINNOT))
-        binary_operator(PC_ORC, left, right->data.monadic, outputReg, output);
-    else if (ENODE_IS(left, EBINNOT))
-        binary_operator(PC_ORC, right, left->data.monadic, outputReg, output);
-    else
-        binary_operator(PC_OR, left, right, outputReg, output);
-}
-
-void gen_ASS(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *type;
-    ENode *left;
-    ENode *right;
-    Operand opleft;
-    Operand opright;
-    Operand op2;
-    VarInfo *vi;
-    SInt32 incval;
-    short align;
-    short align2;
-
-    type = expr->rtype;
-    if (ENODE_IS(expr, ECONDASS)) {
-        left = expr->data.cond.expr1;
-        if (ENODE_IS(left, EINDIRECT)) {
-            left = left->data.monadic;
-        } else {
-            CError_FATAL(1759);
-        }
-        right = expr->data.cond.expr2;
-    } else {
-        left = expr->data.diadic.left;
-        right = expr->data.diadic.right;
-    }
-
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-    memclrw(&op2, sizeof(Operand));
-
-    if (TYPE_IS_8BYTES(type)) {
-        I8_gen_ASS(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (ENODE_IS(left, EOBJREF) && OBJECT_REG(left->data.objref)) {
-        vi = Registers_GetVarInfo(left->data.objref);
-        GEN_NODE_TO_REG(right, vi->reg, 0, &opright);
-        switch (vi->rclass) {
-            case RegClass_GPR:
-                ENSURE_GPR(&opright, type, vi->reg);
-                output->optype = OpndType_GPR;
-                break;
-            case RegClass_FPR:
-                ENSURE_FPR(&opright, type, vi->reg);
-                output->optype = OpndType_FPR;
-                break;
-            case RegClass_VR:
-                ENSURE_VR(&opright, type, vi->reg);
-                output->optype = OpndType_VR;
-                break;
-            default:
-                CError_FATAL(1810);
-        }
-        if (opright.reg != vi->reg) {
-            PCodeArg a, b;
-            a.kind = PCOp_REGISTER;
-            a.arg = vi->rclass;
-            a.data.reg.reg = vi->reg;
-            a.data.reg.effect = EffectWrite;
-            b.kind = PCOp_REGISTER;
-            b.arg = vi->rclass;
-            b.data.reg.reg = opright.reg;
-            b.data.reg.effect = EffectRead;
-            appendpcode(pclastblock, makecopyinstruction(&b, &a));
-        }
-        output->reg = vi->reg;
-        return;
-    }
-
-    if (IS_TYPE_FLOAT(type)) {
-        GEN_NODE_TO_FPR(right, &opright, right->rtype, 0);
-        if (ispostincrementopportunity(left, &opleft, &incval)) {
-            indirect(&opleft, expr);
-            store_fp(opright.reg, &opleft, type);
-            add_register_immediate(opleft.reg, opleft.reg, incval);
-        } else {
-            GEN_NODE(left, &opleft);
-            indirect(&opleft, expr);
-            store_fp(opright.reg, &opleft, type);
-        }
-        output->optype = OpndType_FPR;
-        output->reg = opright.reg;
-        return;
-    }
-
-    if (IS_TYPE_VECTOR(type)) {
-        GEN_NODE(right, &opright);
-        if (opright.optype == OpndType_Absolute)
-            ENSURE_VR(&opright, type, 0);
-        else
-            ENSURE_VR(&opright, right->rtype, 0);
-
-        if (ispostincrementopportunity(left, &opleft, &incval)) {
-            indirect(&opleft, expr);
-            store_v(opright.reg, &opleft, type);
-            add_register_immediate(opleft.reg, opleft.reg, incval);
-        } else {
-            GEN_NODE(left, &opleft);
-            indirect(&opleft, expr);
-            store_v(opright.reg, &opleft, type);
-        }
-        output->optype = OpndType_VR;
-        output->reg = opright.reg;
-        return;
-    }
-
-    if (TYPE_FITS_IN_REGISTER(type)) {
-        GEN_NODE_TO_GPR(right, &opright, right->rtype, 0);
-
-        if (ENODE_IS(left, EBITFIELD)) {
-            GEN_NODE(left->data.monadic, &opleft);
-            indirect(&opleft, expr);
-
-            op2 = opleft;
-            ENSURE_GPR(&op2, type, 0);
-            insert_bitfield(opright.reg, &op2, TYPE_BITFIELD(left->rtype));
-            store(op2.reg, &opleft, type);
-
-            if (!expr->ignored)
-                extract_bitfield(&op2, TYPE_BITFIELD(left->rtype), opright.reg, &opleft);
-        } else if (ispostincrementopportunity(left, &opleft, &incval)) {
-            indirect(&opleft, expr);
-            store(opright.reg, &opleft, type);
-            add_register_immediate(opleft.reg, opleft.reg, incval);
-        } else {
-            GEN_NODE(left, &opleft);
-            indirect(&opleft, expr);
-            store(opright.reg, &opleft, type);
-        }
-
-        output->optype = OpndType_GPR;
-        output->reg = opright.reg;
-        return;
-    }
-
-    GEN_NODE(right, &opright);
-    GEN_NODE(left, output);
-
-    indirect(output, expr);
-    if (output->object) {
-        if (output->object->datatype == DLOCAL && (output->object->u.var.info->flags & VarInfoFlag1))
-            align = CMach_ArgumentAlignment(type);
-        else
-            align = CMach_AllocationAlignment(type, output->object->qual);
-    } else {
-        align = CMach_AllocationAlignment(type, 0);
-    }
-    if (opright.object) {
-        if (opright.object->datatype == DLOCAL && (opright.object->u.var.info->flags & VarInfoFlag1))
-            align2 = CMach_ArgumentAlignment(type);
-        else
-            align2 = CMach_AllocationAlignment(type, opright.object->qual);
-    } else {
-        align2 = CMach_AllocationAlignment(type, 0);
-    }
-
-    if (align2 < align)
-        align = align2;
-
-    move_block(output, &opright, type->size, align);
-}
-
-ENode *evaluate_and_skip_comma(ENode *expr) {
-    Operand op;
-    ENode *inner;
-
-    memclrw(&op, sizeof(Operand));
-    while (ENODE_IS(expr, ECOMMA)) {
-        inner = expr->data.diadic.left;
-        GEN_NODE(inner, &op);
-        if (ENODE_IS(inner, EINDIRECT) && (op.flags & OpndFlags_Volatile)) {
-            if (TYPE_FITS_IN_REGISTER_2(inner->rtype)) {
-                ENSURE_GPR(&op, inner->rtype, 0);
-            } else if (IS_TYPE_FLOAT(inner->rtype)) {
-                ENSURE_FPR(&op, inner->rtype, 0);
-            }
-        }
-        expr = expr->data.diadic.right;
-    }
-    return expr;
-}
-
-void gen_COMMA(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    GEN_NODE(left, output);
-
-    if (ENODE_IS(left, EINDIRECT) && (output->flags & OpndFlags_Volatile)) {
-        if (TYPE_FITS_IN_REGISTER_2(left->rtype)) {
-            ENSURE_GPR(output, left->rtype, 0);
-        } else if (IS_TYPE_FLOAT(left->rtype)) {
-            ENSURE_FPR(output, left->rtype, 0);
-        }
-    }
-
-    GEN_NODE_TO_REG(right, outputReg, 0, output);
-}
-
-void gen_TYPCON(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-    Type *srctype;
-    Type *dsttype;
-
-    inner = expr->data.monadic;
-    srctype = inner->rtype;
-    dsttype = expr->rtype;
-
-    if (TYPE_IS_8BYTES(srctype) || TYPE_IS_8BYTES(dsttype)) {
-        I8_gen_TYPCON(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    if (IS_TYPE_VOID(dsttype)) {
-        GEN_NODE(inner, output);
-        if (ENODE_IS(inner, EINDIRECT) && (output->flags & OpndFlags_Volatile)) {
-            if (TYPE_FITS_IN_REGISTER_2(srctype)) {
-                ENSURE_GPR(output, srctype, 0);
-            } else if (IS_TYPE_FLOAT(srctype)) {
-                ENSURE_FPR(output, srctype, 0);
-            }
-        }
-    } else if (IS_TYPE_INT_OR_ENUM(srctype)) {
-        if (IS_TYPE_FLOAT(dsttype)) {
-            GEN_NODE(inner, output);
-            if (srctype->size < 4)
-                extend32(output, srctype, 0);
-            ENSURE_GPR(output, srctype, 0);
-
-            if (is_unsigned(srctype))
-                convert_unsigned_to_floating(output, dsttype->size == 4, outputReg);
-            else
-                convert_integer_to_floating(output, dsttype->size == 4, outputReg);
-        } else if (IS_TYPE_VECTOR(dsttype)) {
-            GEN_NODE_TO_REG(inner, outputReg, 0, output);
-            ENSURE_VR(output, dsttype, outputReg);
-        } else if (
-                srctype->size < dsttype->size &&
-                !ENODE_IS_INDIRECT_TO(inner, EBITFIELD) &&
-                !ENODE_IS_ASSIGN_TO(inner, EBITFIELD) &&
-                !(ENODE_IS_RANGE(inner, EPOSTINC, EPREDEC) && ENODE_IS(inner->data.monadic->data.monadic, EBITFIELD))
-                ) {
-            GEN_NODE(inner, output);
-            extend32(output, srctype, outputReg);
-        } else if (dsttype->size < srctype->size || dsttype->size < 4) {
-            GEN_NODE(inner, output);
-            ENSURE_GPR(output, srctype, 0);
-            extend32(output, dsttype, outputReg);
-        } else {
-            GEN_NODE_TO_REG(inner, outputReg, 0, output);
-        }
-    } else if (IS_TYPE_POINTER(srctype)) {
-        GEN_NODE_TO_REG(inner, outputReg, 0, output);
-        if (dsttype->size < srctype->size)
-            ENSURE_GPR(output, srctype, outputReg);
-    } else if (IS_TYPE_FLOAT(srctype)) {
-        if (IS_TYPE_FLOAT(dsttype)) {
-            GEN_NODE_TO_REG(inner, outputReg, 0, output);
-            ENSURE_FPR(output, srctype, outputReg);
-
-            if (dsttype->size == 4 && srctype->size != 4) {
-                int tmp = outputReg ? outputReg : ALLOC_FPR();
-                emitpcode(PC_FRSP, tmp, output->reg);
-                output->optype = OpndType_FPR;
-                output->reg = tmp;
-            }
-        } else if (is_unsigned(dsttype) && dsttype->size == 4) {
-            GEN_NODE_TO_REG(inner, 1, 0, output);
-            ENSURE_FPR(output, srctype, 1);
-            convert_floating_to_unsigned(output, outputReg);
-        } else {
-            GEN_NODE_TO_REG(inner, 0, 0, output);
-            ENSURE_FPR(output, srctype, 0);
-            convert_floating_to_integer(output, outputReg);
-        }
-    } else if (IS_TYPE_VECTOR(srctype) && IS_TYPE_VECTOR(dsttype)) {
-        GEN_NODE_TO_REG(inner, outputReg, 0, output);
-        ENSURE_VR(output, srctype, outputReg);
-    } else if (srctype->size == dsttype->size) {
-        GEN_NODE_TO_REG(inner, outputReg, 0, output);
-    } else {
-        CError_FATAL(2224);
-    }
-}
-
-void gen_BITFIELD(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    CError_FATAL(2238);
-}
-
-void gen_INTCONST(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    if (TYPE_IS_8BYTES(expr->rtype)) {
-        I8_gen_INTCONST(expr, outputReg, outputRegHi, output);
-        return;
-    }
-
-    output->optype = OpndType_Absolute;
-    output->immediate = CInt64_GetULong(&expr->data.intval);
-}
-
-void gen_FLOATCONST(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    CError_FATAL(2294);
-}
-
-void gen_STRINGCONST(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    CError_FATAL(2308);
-}
-
-static Boolean COND_is_ABS_MatchNodes(ENode *cond, ENode *expr1, ENode *expr2) {
-    if (cond->type != expr1->type || cond->type != expr2->type)
-        return 0;
-
-    if (!(TYPE_FITS_IN_REGISTER(cond->rtype) && TYPE_FITS_IN_REGISTER(expr1->rtype) && TYPE_FITS_IN_REGISTER(expr2->rtype)))
-        return 0;
-
-    if (cond->rtype->size != expr1->rtype->size || cond->rtype->size != expr2->rtype->size)
-        return 0;
-
-    switch (cond->type) {
-        case EOBJREF:
-            if (cond->data.objref != expr1->data.objref || cond->data.objref != expr2->data.objref)
-                return 0;
-            return 1;
-        case EINDIRECT:
-        case ETYPCON:
-            return COND_is_ABS_MatchNodes(cond->data.monadic, expr1->data.monadic, expr2->data.monadic);
-        default:
-            return 0;
-    }
-}
-
-static ENode *COND_is_ABS(ENode *cond, ENode *expr1, ENode *expr2) {
-    ENode *tmp;
-
-    int parity = 0;
-    while (ENODE_IS(cond, ELOGNOT)) {
-        parity = (parity + 1) & 1;
-        cond = cond->data.monadic;
-    }
-
-    if (parity) {
-        tmp = expr1;
-        expr1 = expr2;
-        expr2 = tmp;
-    }
-
-    switch (cond->type) {
-        case ELESS:
-        case ELESSEQU:
-            tmp = expr1;
-            expr1 = expr2;
-            expr2 = tmp;
-            break;
-        case EGREATER:
-        case EGREATEREQU:
-            break;
-        default:
-            return NULL;
-    }
-
-    if (IS_INT_CONST_ZERO(cond->data.diadic.right)) {
-        cond = cond->data.diadic.left;
-    } else if (IS_INT_CONST_ZERO(cond->data.diadic.left)) {
-        cond = cond->data.diadic.left;
-        tmp = expr1;
-        expr1 = expr2;
-        expr2 = tmp;
-    } else {
-        return NULL;
-    }
-
-    if (ENODE_IS(expr1, EADD) && ENODE_IS(expr2, ESUB)) {
-        if (COND_is_ABS_MatchNodes(cond, expr1->data.diadic.right, expr2->data.diadic.right))
-            return expr1;
-        else
-            return NULL;
-    }
-
-    if (!ENODE_IS(expr2, EMONMIN))
-        return NULL;
-
-    expr2 = expr2->data.monadic;
-    if (COND_is_ABS_MatchNodes(cond, expr1, expr2))
-        return expr1;
-
-    return NULL;
-}
-
-static int COND_has_const(ENode *expr1, ENode *expr2) {
-    SInt32 diff;
-    int result = 0;
-
-    if (IS_INT_CONST(expr1))
-        result += 1;
-    if (IS_INT_CONST(expr2))
-        result += 2;
-
-    if (result & 1) {
-        if (IS_INT_CONST_ZERO(expr1))
-            return 5;
-    }
-    if (result & 2) {
-        if (IS_INT_CONST_ZERO(expr2))
-            return 6;
-    }
-
-    if (result == 3) {
-        diff = expr1->data.intval.lo - expr2->data.intval.lo;
-        if (diff == 1 || diff == -1)
-            return 4;
-    }
-
-    return result;
-}
-
-static Boolean COND_is_COMPARE(ENode *cond, ENode *expr1, ENode *expr2, short outputReg, Operand *output) {
-    SInt32 left;
-    SInt32 right;
-    int parity;
-    int negate;
-    ENodeType nt;
-
-    while (ENODE_IS(expr1, ETYPCON) && TYPE_FITS_IN_REGISTER(expr1->rtype))
-        expr1 = expr1->data.monadic;
-    while (ENODE_IS(expr2, ETYPCON) && TYPE_FITS_IN_REGISTER(expr2->rtype))
-        expr2 = expr2->data.monadic;
-
-    if (!(ENODE_IS(expr1, EINTCONST) && TYPE_FITS_IN_REGISTER(expr1->rtype) && CInt64_IsInRange(expr1->data.intval, 4)))
-        return 0;
-    if (!(ENODE_IS(expr2, EINTCONST) && TYPE_FITS_IN_REGISTER(expr2->rtype) && CInt64_IsInRange(expr2->data.intval, 4)))
-        return 0;
-
-    left = CInt64_GetULong(&expr1->data.intval);
-    right = CInt64_GetULong(&expr2->data.intval);
-    parity = 0;
-    negate = 0;
-    switch (left) {
-        case 1:
-            if (right != 0)
-                return 0;
-            break;
-        case 0:
-            parity = 1;
-            if (right == -1)
-                negate = 1;
-            else if (right != 1)
-                return 0;
-            break;
-        case -1:
-            if (right != 0)
-                return 0;
-            negate = 1;
-            break;
-        default:
-            return 0;
-    }
-
-    while (ENODE_IS(cond, ELOGNOT)) {
-        parity = (parity + 1) & 1;
-        cond = cond->data.monadic;
-    }
-
-    if (parity) {
-        nt = invert_relop(cond->type);
-        if (nt == cond->type)
-            return 0;
-        cond->type = nt;
-    }
-
-    if (negate)
-        gen_negated_condition_gpr(cond, output, outputReg);
-    else
-        gen_condition_gpr(cond, output, outputReg);
-
-    return 1;
-}
-
-void gen_COND(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *cond;
-    ENode *expr1;
-    ENode *expr2;
-    Type *type;
-    PCodeLabel *label1;
-    PCodeLabel *label2;
-    PCodeLabel *label3;
-    Operand op1;
-    Operand op2;
-    int has_const;
-    int reg1;
-    int reg2;
-    int reg3;
-    short align;
-    short max_align;
-
-    expr1 = expr->data.cond.expr1;
-    expr2 = expr->data.cond.expr2;
-    type = expr->rtype;
-
-    label1 = makepclabel();
-    label2 = makepclabel();
-    label3 = makepclabel();
-
-    memclrw(&op1, sizeof(Operand));
-    memclrw(&op2, sizeof(Operand));
-
-    cond = evaluate_and_skip_comma(expr->data.cond.cond);
-
-    if (TOC_use_fsel(expr)) {
-        ENode *left;
-        ENode *right;
-        ENode *tmp;
-        ENodeType nt;
-        Boolean flag;
-        Operand op;
-        int fneg_reg;
-        int fneg_reg2;
-        int fneg_reg3;
-        int fsel_reg;
-        int final_reg;
-
-        left = cond->data.diadic.left;
-        right = cond->data.diadic.right;
-        nt = cond->type;
-        flag = 0;
-        memclrw(&op, sizeof(Operand));
-
-        switch (nt) {
-            case EGREATEREQU:
-            case EEQU:
-                break;
-            case EGREATER:
-                tmp = left;
-                left = right;
-                right = tmp;
-            case ELESS:
-            case ENOTEQU:
-                tmp = expr1;
-                expr1 = expr2;
-                expr2  = tmp;
-                break;
-            case ELESSEQU:
-                tmp = left;
-                left = right;
-                right = tmp;
-                break;
-            default:
-                CError_FATAL(2780);
-        }
-
-        if (ENODE_IS(left, EFLOATCONST) && CMach_FloatIsZero(left->data.floatval)) {
-            GEN_NODE(right, &op);
-            ENSURE_FPR(&op, right->rtype, 0);
-            flag = 1;
-        } else if (ENODE_IS(right, EFLOATCONST) && CMach_FloatIsZero(right->data.floatval)) {
-            GEN_NODE(left, &op);
-            ENSURE_FPR(&op, left->rtype, 0);
-        } else {
-            fp_binary_operator((type->size == 4) ? PC_FSUBS : PC_FSUB, left, right, 0, &op);
-        }
-
-        switch (cond->type) {
-            case EEQU:
-            case ENOTEQU:
-                if (flag) {
-                    GEN_NODE_TO_FPR(expr1, &op1, expr1->rtype, 0);
-                    GEN_NODE_TO_FPR(expr2, &op2, expr2->rtype, 0);
-
-                    fneg_reg = ALLOC_FPR();
-                    emitpcode(PC_FNEG, fneg_reg, op.reg);
-                    fsel_reg = ALLOC_FPR();
-                    emitpcode(PC_FSEL, fsel_reg, op.reg, op1.reg, op2.reg);
-                    final_reg = outputReg ? outputReg : ALLOC_FPR();
-                    emitpcode(PC_FSEL, final_reg, fneg_reg, fsel_reg, op2.reg);
-                } else {
-                    GEN_NODE_TO_FPR(expr1, &op1, expr1->rtype, 0);
-                    GEN_NODE_TO_FPR(expr2, &op2, expr2->rtype, 0);
-
-                    fneg_reg2 = ALLOC_FPR();
-                    emitpcode(PC_FNEG, fneg_reg2, op.reg);
-                    fsel_reg = ALLOC_FPR();
-                    emitpcode(PC_FSEL, fsel_reg, op.reg, op1.reg, op2.reg);
-                    final_reg = outputReg ? outputReg : ALLOC_FPR();
-                    emitpcode(PC_FSEL, final_reg, fneg_reg2, fsel_reg, op2.reg);
-                }
-                break;
-            case ELESS:
-            case EGREATER:
-            case ELESSEQU:
-            case EGREATEREQU:
-                GEN_NODE_TO_FPR(expr1, &op1, expr1->rtype, 0);
-                GEN_NODE_TO_FPR(expr2, &op2, expr2->rtype, 0);
-
-                fneg_reg3 = op.reg;
-                if (flag) {
-                    fneg_reg3 = ALLOC_FPR();
-                    emitpcode(PC_FNEG, fneg_reg3, op.reg);
-                }
-
-                final_reg = outputReg ? outputReg : ALLOC_FPR();
-                emitpcode(PC_FSEL, final_reg, fneg_reg3, op1.reg, op2.reg);
-                break;
-            default:
-                CError_FATAL(2862);
-        }
-
-        output->optype = OpndType_FPR;
-        output->reg = final_reg;
-        return;
-    }
-
-    if (TOC_use_isel(expr, 1)) {
-        Operand isel_op1;
-        Operand isel_op2;
-        ENode *x;
-        ENode *y;
-        ENode *abs_expr;
-
-        memclrw(&isel_op1, sizeof(Operand));
-        memclrw(&isel_op2, sizeof(Operand));
-
-        if (COND_is_COMPARE(cond, expr1, expr2, outputReg, output))
-            return;
-
-        if ((abs_expr = COND_is_ABS(cond, expr1, expr2))) {
-            if (ENODE_IS(expr1, EADD) && ENODE_IS(expr2, ESUB)) {
-                x = expr1->data.diadic.left;
-                y = expr2->data.diadic.right;
-                if (y->hascall) {
-                    GEN_NODE(y, &op2);
-                    ENSURE_GPR(&op2, y->rtype, 0);
-
-                    GEN_NODE(x, &op1);
-                    if (op1.optype >= OpndType_IndirectGPR_ImmOffset)
-                        ENSURE_GPR(&op1, x->rtype, 0);
-                } else {
-                    GEN_NODE(x, &op1);
-                    if (op1.optype >= OpndType_IndirectGPR_ImmOffset)
-                        ENSURE_GPR(&op1, x->rtype, 0);
-
-                    GEN_NODE(y, &op2);
-                    ENSURE_GPR(&op2, y->rtype, 0);
-                }
-
-                reg1 = ALLOC_GPR();
-                emitpcode(PC_SRAWI, reg1, op2.reg, 31);
-                reg2 = ALLOC_GPR();
-                emitpcode(PC_XOR, reg2, reg1, op2.reg);
-                reg3 = ALLOC_GPR();
-                emitpcode(PC_SUBF, reg3, reg1, reg2);
-                op2.optype = OpndType_GPR;
-                op2.reg = reg3;
-                combine(&op1, &op2, outputReg, output);
-            } else {
-                GEN_NODE(abs_expr, output);
-                ENSURE_GPR(output, abs_expr->rtype, 0);
-
-                reg1 = ALLOC_GPR();
-                emitpcode(PC_SRAWI, reg1, output->reg, 31);
-                reg2 = ALLOC_GPR();
-                emitpcode(PC_XOR, reg2, reg1, output->reg);
-                reg3 = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SUBF, reg3, reg1, reg2);
-                output->optype = OpndType_GPR;
-                output->reg = reg3;
-            }
-            return;
-        }
-
-        if ((has_const = COND_has_const(expr1, expr2))) {
-            switch (COND_has_const(expr1, expr2)) {
-                case 0:
-                case 2:
-                    break;
-                case 3:
-                case 4:
-                    if (has_const == 4) {
-                        if (expr1->data.intval.lo < expr2->data.intval.lo)
-                            gen_negated_condition_gpr(cond, &isel_op1, 0);
-                        else
-                            gen_condition_gpr(cond, &isel_op1, 0);
-
-                        GEN_NODE(expr1, &op1);
-                        GEN_NODE(expr2, &op2);
-                        reg1 = ALLOC_GPR();
-                        ENSURE_GPR(&op2, expr2->rtype, reg1);
-                        emitpcode(PC_ADD, reg1, isel_op1.reg, op2.reg);
-                        if (outputReg) {
-                            emitpcode(PC_MR, reg2 = outputReg, reg1);
-                            reg1 = reg2;
-                        }
-                        output->optype = OpndType_GPR;
-                        output->reg = reg1;
-                        return;
-                    }
-                    break;
-                case 5:
-                case 6:
-                    gen_negated_condition_gpr(cond, &isel_op1, 0);
-                    ENSURE_GPR(&isel_op1, TYPE(&stunsignedint), 0);
-                    GEN_NODE(expr1, &op1);
-                    GEN_NODE(expr2, &op2);
-
-                    reg1 = outputReg ? outputReg : ALLOC_GPR();
-                    if (op1.optype == OpndType_Absolute && op1.immediate == 0) {
-                        ENSURE_GPR(&op2, expr2->rtype, 0);
-                        emitpcode(PC_ANDC, reg1, op2.reg, isel_op1.reg);
-                    } else if (op2.optype == OpndType_Absolute && op2.immediate == 0) {
-                        ENSURE_GPR(&op1, expr1->rtype, 0);
-                        emitpcode(PC_AND, reg1, op1.reg, isel_op1.reg);
-                    } else {
-                        CError_FATAL(3119);
-                    }
-
-                    output->optype = OpndType_GPR;
-                    output->reg = reg1;
-                    return;
-                case 1:
-                    reg2 = ALLOC_GPR();
-                    reg1 = reg2;
-                    logical_expression_nobranch(cond, 0, &isel_op2);
-
-                    GEN_NODE_TO_REG(expr1, reg1, 0, &op1);
-                    ENSURE_GPR(&op1, expr1->rtype, reg1);
-                    if (op1.reg != reg1)
-                        emitpcode(PC_MR, reg1, op1.reg);
-
-                    branch_conditional(isel_op2.reg, isel_op2.regOffset, 1, label2);
-                    branch_label(label1);
-
-                    GEN_NODE_TO_REG(expr2, reg1, 0, &op2);
-                    ENSURE_GPR(&op2, expr2->rtype, reg1);
-                    if (op2.reg != reg1)
-                        emitpcode(PC_MR, reg1, op2.reg);
-
-                    branch_label(label2);
-
-                    if (outputReg) {
-                        emitpcode(PC_MR, reg2 = outputReg, reg1);
-                        reg1 = reg2;
-                    }
-
-                    output->optype = OpndType_GPR;
-                    output->reg = reg1;
-                    return;
-
-                default:
-                    CError_FATAL(3168);
-            }
-        }
-
-        reg1 = ALLOC_GPR();
-        logical_expression_nobranch(cond, 0, &isel_op2);
-
-        GEN_NODE_TO_REG(expr2, reg1, 0, &op2);
-        ENSURE_GPR(&op2, expr2->rtype, reg1);
-        if (op2.reg != reg1)
-            emitpcode(PC_MR, reg1, op2.reg);
-
-        branch_conditional(isel_op2.reg, isel_op2.regOffset, 0, label2);
-        branch_label(label1);
-
-        GEN_NODE_TO_REG(expr1, reg1, 0, &op1);
-        ENSURE_GPR(&op1, expr1->rtype, reg1);
-        if (op1.reg != reg1)
-            emitpcode(PC_MR, reg1, op1.reg);
-
-        branch_label(label2);
-
-        if (outputReg) {
-            emitpcode(PC_MR, reg2 = outputReg, reg1);
-            reg1 = reg2;
-        }
-
-        output->optype = OpndType_GPR;
-        output->reg = reg1;
-        return;
-    }
-
-    logical_expression(cond, label1, label2, label1);
-    branch_label(label1);
-
-    if (IS_TYPE_VOID(type) || expr->ignored) {
-        GEN_NODE(expr1, &op1);
-        branch_always(label3);
-        branch_label(label2);
-        GEN_NODE(expr2, &op2);
-    } else if (IS_TYPE_FLOAT(type)) {
-        if (expr1->hascall || expr2->hascall)
-            reg1 = ALLOC_FPR();
-        else
-            reg1 = outputReg ? outputReg : ALLOC_FPR();
-
-        GEN_NODE_TO_REG(expr1, reg1, 0, &op1);
-        ENSURE_FPR(&op1, expr1->rtype, reg1);
-        if (op1.reg != reg1)
-            emitpcode(PC_FMR, reg1, op1.reg);
-
-        branch_always(label3);
-        branch_label(label2);
-
-        GEN_NODE_TO_REG(expr2, reg1, 0, &op2);
-        ENSURE_FPR(&op2, expr2->rtype, reg1);
-        if (op2.reg != reg1)
-            emitpcode(PC_FMR, reg1, op2.reg);
-
-        output->optype = OpndType_FPR;
-        output->reg = reg1;
-    } else if (TYPE_IS_8BYTES(type)) {
-        if (expr1->hascall || expr2->hascall) {
-            reg1 = ALLOC_GPR();
-            reg3 = ALLOC_GPR();
-            reg2 = reg3;
-        } else {
-            reg1 = outputReg ? outputReg : ALLOC_GPR();
-            reg3 = outputRegHi ? outputRegHi : ALLOC_GPR();
-            reg2 = reg3;
-        }
-
-        GEN_NODE_TO_REG(expr1, reg1, reg2, &op1);
-        coerce_to_register_pair(&op1, expr1->rtype, reg1, reg2);
-
-        branch_always(label3);
-        branch_label(label2);
-
-        GEN_NODE_TO_REG(expr2, reg1, reg2, &op2);
-        coerce_to_register_pair(&op2, expr2->rtype, reg1, reg2);
-
-        output->optype = OpndType_GPRPair;
-        output->reg = reg1;
-        output->regHi = reg2;
-    } else if (TYPE_FITS_IN_REGISTER(type)) {
-        if (expr1->hascall || expr2->hascall)
-            reg1 = ALLOC_GPR();
-        else
-            reg1 = outputReg ? outputReg : ALLOC_GPR();
-
-        GEN_NODE_TO_REG(expr1, reg1, 0, &op1);
-        ENSURE_GPR(&op1, expr1->rtype, reg1);
-        if (op1.reg != reg1)
-            emitpcode(PC_MR, reg1, op1.reg);
-
-        branch_always(label3);
-        branch_label(label2);
-
-        GEN_NODE_TO_REG(expr2, reg1, 0, &op2);
-        ENSURE_GPR(&op2, expr2->rtype, reg1);
-        if (op2.reg != reg1)
-            emitpcode(PC_MR, reg1, op2.reg);
-
-        output->optype = OpndType_GPR;
-        output->reg = reg1;
-    } else if (IS_TYPE_VECTOR(type)) {
-        if (expr1->hascall || expr2->hascall)
-            reg1 = ALLOC_VR();
-        else
-            reg1 = outputReg ? outputReg : ALLOC_VR();
-
-        GEN_NODE_TO_REG(expr1, reg1, 0, &op1);
-        ENSURE_VR(&op1, expr1->rtype, reg1);
-        if (op1.reg != reg1)
-            emitpcode(PC_VMR, reg1, op1.reg);
-
-        branch_always(label3);
-        branch_label(label2);
-
-        GEN_NODE_TO_REG(expr2, reg1, 0, &op2);
-        ENSURE_VR(&op2, expr2->rtype, reg1);
-        if (op2.reg != reg1)
-            emitpcode(PC_VMR, reg1, op2.reg);
-
-        output->optype = OpndType_VR;
-        output->reg = reg1;
-    } else {
-        symbol_operand(output, maketemporary(type));
-        indirect(output, NULL);
-        coerce_to_addressable(output);
-
-        GEN_NODE(expr1, &op1);
-
-        if (op1.object) {
-            if (op1.object->datatype == DLOCAL && (op1.object->u.var.info->flags & VarInfoFlag1))
-                align = CMach_ArgumentAlignment(type);
-            else
-                align = CMach_AllocationAlignment(type, op1.object->qual);
-        } else {
-            align = CMach_AllocationAlignment(type, 0);
-        }
-
-        max_align = CMach_AllocationAlignment(type, 0);
-        if (align > max_align)
-            align = max_align;
-
-        move_block(output, &op1, type->size, align);
-
-        branch_always(label3);
-        branch_label(label2);
-
-        GEN_NODE(expr2, &op2);
-
-        if (op2.object) {
-            if (op2.object->datatype == DLOCAL && (op2.object->u.var.info->flags & VarInfoFlag1))
-                align = CMach_ArgumentAlignment(type);
-            else
-                align = CMach_AllocationAlignment(type, op2.object->qual);
-        } else {
-            align = CMach_AllocationAlignment(type, 0);
-        }
-
-        if (align > max_align)
-            align = max_align;
-
-        move_block(output, &op2, type->size, align);
-    }
-
-    branch_label(label3);
-}
-
-static Boolean CONDASS_is_ABS(ENode *cond, ENode *expr1, ENode *expr2) {
-    ENode *inner;
-
-    int parity = 0;
-    while (ENODE_IS(cond, ELOGNOT)) {
-        parity = (parity + 1) & 1;
-        cond = cond->data.monadic;
-    }
-
-    if (IS_INT_CONST_ZERO(cond->data.diadic.right)) {
-        inner = cond->data.diadic.left;
-    } else if (IS_INT_CONST_ZERO(cond->data.diadic.left)) {
-        inner = cond->data.diadic.left;
-        parity = (parity + 1) & 1;
-    } else {
-        return 0;
-    }
-
-    switch (cond->type) {
-        case EGREATER:
-        case EGREATEREQU:
-            if (!parity)
-                return 0;
-            break;
-        case ELESS:
-        case ELESSEQU:
-            if (parity)
-                return 0;
-            break;
-        default:
-            return 0;
-    }
-
-    if (!ENODE_IS(expr2, EMONMIN))
-        return 0;
-
-    expr2 = expr2->data.monadic;
-    if (ENODE_IS(inner, EASS)) {
-        inner = inner->data.diadic.left;
-        if (!ENODE_IS(expr2, EINDIRECT))
-            return 0;
-        expr2 = expr2->data.monadic;
-        if (!ENODE_IS(expr1, EINDIRECT))
-            return 0;
-        expr1 = expr1->data.monadic;
-    }
-
-    return COND_is_ABS_MatchNodes(inner, expr1, expr2);
-}
-
-static int CONDASS_is_OPASS_One(ENode *a, ENode *b, SInt32 *value, ENodeType *nodetype) {
-    Type *type;
-
-    type = a->rtype;
-    if (!ENODE_IS(a, EINDIRECT))
-        return 0;
-    a = a->data.monadic;
-    if (!ENODE_IS(a, EOBJREF))
-        return 0;
-
-    if (ENODE_IS(b, ETYPCON) && b->rtype == type)
-        b = b->data.monadic;
-
-    if (b->type != EOR && b->type != EADD && b->type != ESUB)
-        return 0;
-
-    *nodetype = b->type;
-    if (!IS_INT_CONST(b->data.diadic.right))
-        return 0;
-    *value = b->data.diadic.right->data.intval.lo;
-
-    if (*value != 1 && *value != -1)
-        return 0;
-
-    b = b->data.diadic.left;
-    if (ENODE_IS(b, ETYPCON) && TYPE_FITS_IN_REGISTER(b->rtype))
-        b = b->data.monadic;
-
-    if (!ENODE_IS(b, EINDIRECT))
-        return 0;
-    b = b->data.monadic;
-    if (!ENODE_IS(b, EOBJREF))
-        return 0;
-
-    if (a->data.objref == b->data.objref)
-        return 1;
-    return 0;
-}
-
-void gen_CONDASS(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *cond;
-    ENode *expr1;
-    ENode *expr2;
-    Type *type;
-    PCodeLabel *label1;
-    PCodeLabel *label2;
-    Operand op1;
-    Operand op2;
-    Operand op3;
-    int reg1;
-    int reg2;
-
-    expr1 = expr->data.cond.expr1;
-    expr2 = expr->data.cond.expr2;
-    type = expr->rtype;
-
-    label1 = makepclabel();
-    label2 = makepclabel();
-
-    memclrw(&op1, sizeof(Operand));
-    memclrw(&op2, sizeof(Operand));
-    memclrw(&op3, sizeof(Operand));
-
-    cond = evaluate_and_skip_comma(expr->data.cond.cond);
-
-    if (TOC_use_fsel(expr)) {
-        ENode *left;
-        ENode *right;
-        ENode *tmp;
-        ENodeType nt;
-        Boolean flag;
-        Boolean flag2;
-        Operand op;
-        int tmpreg;
-        int fneg_reg;
-        int fsel_reg;
-        int final_reg;
-
-        left = cond->data.diadic.left;
-        right = cond->data.diadic.right;
-        nt = cond->type;
-        flag = 0;
-        memclrw(&op, sizeof(Operand));
-
-        CError_ASSERT(3704, ENODE_IS(expr1, EINDIRECT));
-        CError_ASSERT(3705, ENODE_IS(expr1->data.monadic, EOBJREF));
-
-        tmpreg = OBJECT_REG(expr1->data.monadic->data.objref);
-        final_reg = outputReg ? tmpreg : ALLOC_FPR();
-
-        switch (nt) {
-            case EGREATER:
-                tmp = left;
-                left = right;
-                right = tmp;
-            case ELESS:
-            case ENOTEQU:
-                tmp = expr1;
-                expr1 = expr2;
-                expr2  = tmp;
-                flag2 = 1;
-                break;
-            case ELESSEQU:
-                tmp = left;
-                left = right;
-                right = tmp;
-                flag2 = 0;
-                break;
-            case EGREATEREQU:
-            case EEQU:
-                flag2 = 0;
-                break;
-            default:
-                CError_FATAL(3744);
-        }
-
-        if (ENODE_IS(left, EFLOATCONST) && CMach_FloatIsZero(left->data.floatval)) {
-            GEN_NODE(right, &op);
-            ENSURE_FPR(&op, right->rtype, 0);
-            flag = 1;
-        } else if (ENODE_IS(right, EFLOATCONST) && CMach_FloatIsZero(right->data.floatval)) {
-            GEN_NODE(left, &op);
-            ENSURE_FPR(&op, left->rtype, 0);
-        } else {
-            fp_binary_operator((type->size == 4) ? PC_FSUBS : PC_FSUB, left, right, 0, &op);
-        }
-
-        switch (cond->type) {
-            case EEQU:
-            case ENOTEQU:
-                if (flag) {
-                    GEN_NODE(expr1, &op1);
-                    op3 = op1;
-                    ENSURE_FPR(&op1, expr1->rtype, 0);
-
-                    GEN_NODE_TO_FPR(expr2, &op2, expr2->rtype, 0);
-
-                    fneg_reg = ALLOC_FPR();
-                    emitpcode(PC_FNEG, fneg_reg, op.reg);
-                    fsel_reg = ALLOC_FPR();
-                    emitpcode(PC_FSEL, fsel_reg, op.reg, op2.reg, op1.reg);
-                    emitpcode(PC_FSEL, final_reg, fneg_reg, op2.reg, fsel_reg);
-                } else {
-                    GEN_NODE(expr1, &op1);
-                    op3 = op1;
-                    ENSURE_FPR(&op1, expr1->rtype, 0);
-
-                    GEN_NODE_TO_FPR(expr2, &op2, expr2->rtype, 0);
-
-                    fneg_reg = ALLOC_FPR();
-                    emitpcode(PC_FNEG, fneg_reg, op.reg);
-                    fsel_reg = ALLOC_FPR();
-                    emitpcode(PC_FSEL, fsel_reg, op.reg, op2.reg, op1.reg);
-                    emitpcode(PC_FSEL, final_reg, fneg_reg, op2.reg, fsel_reg);
-                }
-                break;
-            case ELESS:
-            case EGREATER:
-            case ELESSEQU:
-            case EGREATEREQU:
-                GEN_NODE(expr1, &op1);
-                GEN_NODE(expr2, &op2);
-                op3 = flag2 ? op2 : op1;
-
-                ENSURE_FPR(&op1, expr1->rtype, 0);
-                ENSURE_FPR(&op2, expr2->rtype, 0);
-
-                fneg_reg = op.reg;
-                if (flag) {
-                    fneg_reg = ALLOC_FPR();
-                    emitpcode(PC_FNEG, fneg_reg, op.reg);
-                }
-
-                emitpcode(PC_FSEL, final_reg, fneg_reg, op2.reg, op1.reg);
-                break;
-            default:
-                CError_FATAL(2862);
-        }
-
-        if (op3.optype != OpndType_FPR)
-            store_fp(final_reg, &op3, type);
-
-        output->optype = OpndType_FPR;
-        output->reg = final_reg;
-        return;
-    }
-
-    if (TOC_use_isel(expr, 1)) {
-        Operand isel_op;
-        ENode *x;
-        ENode *y;
-        ENode *abs_expr;
-
-        memclrw(&isel_op, sizeof(Operand));
-        CError_ASSERT(3966, ENODE_IS(expr1, EINDIRECT));
-        CError_ASSERT(3968, ENODE_IS(expr1->data.monadic, EOBJREF));
-
-        if (CONDASS_is_ABS(cond, expr1, expr2)) {
-            if (ENODE_IS(cond->data.diadic.left, EASS))
-                GEN_NODE(cond->data.diadic.left, &isel_op);
-            else if (ENODE_IS(cond->data.diadic.right, EASS))
-                GEN_NODE(cond->data.diadic.right, &isel_op);
-
-            outputReg = OBJECT_REG(expr1->data.monadic->data.objref);
-            CError_ASSERT(3979, outputReg);
-
-            GEN_NODE(expr1, &op1);
-            op3 = op1;
-
-            CError_ASSERT(3986, op3.optype == OpndType_GPR && op3.reg == outputReg);
-
-            ENSURE_GPR(&op1, expr1->rtype, 0);
-            if (expr1->rtype->size < 4)
-                extend32(output, expr1->rtype, op3.reg);
-
-            reg1 = ALLOC_GPR();
-            reg2 = ALLOC_GPR();
-            emitpcode(PC_SRAWI, reg1, op1.reg, 31);
-            emitpcode(PC_XOR, reg2, reg1, op1.reg);
-            emitpcode(PC_SUBF, outputReg, reg1, reg2);
-            output->optype = OpndType_GPR;
-            output->reg = op3.reg;
-
-            if (expr1->rtype->size < 4)
-                extend32(output, expr1->rtype, op3.reg);
-
-            return;
-        }
-    }
-
-    logical_expression(cond, label1, label2, label1);
-    branch_label(label1);
-    gen_ASS(expr, outputReg, outputRegHi, output);
-    branch_label(label2);
-}
-
-void gen_FUNCCALL(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    if (is_intrinsic_function_call(expr))
-        call_intrinsic_function(expr, outputReg, output);
-    else
-        call_function(expr, output);
-}
-
-void gen_OBJREF(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    symbol_operand(output, expr->data.objref);
-}
-
-void gen_UNEXPECTED(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    CError_FATAL(4160);
-}
-
-static int small(ENode *expr) {
-    Type *type;
-
-    type = expr->rtype;
-    if (!ENODE_IS(expr, ETYPCON))
-        return 0;
-
-    do {
-        expr = expr->data.monadic;
-    } while (ENODE_IS(expr, ETYPCON) && (type = expr->rtype)->size == 4);
-
-    return IS_TYPE_INT_OR_ENUM(type) && ((type->size < 2) || (type->size == 2 && !is_unsigned(type)));
-}
-
-void binary_operator(Opcode opcode, ENode *left, ENode *right, short outputReg, Operand *output) {
-    Operand opleft;
-    Operand opright;
-    int reg;
-
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE_TO_GPR(right, &opright, right->rtype, 0);
-        GEN_NODE_TO_GPR(left, &opleft, left->rtype, 0);
-    } else {
-        GEN_NODE_TO_GPR(left, &opleft, left->rtype, 0);
-        GEN_NODE_TO_GPR(right, &opright, right->rtype, 0);
-    }
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-
-    if (opcode == PC_MULLW && small(left))
-        emitpcode(opcode, reg, opright.reg, opleft.reg);
-    else
-        emitpcode(opcode, reg, opleft.reg, opright.reg);
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-static void binary_immediate(Opcode opcode, ENode *left, SInt32 value, short outputReg, Operand *output) {
-    Operand opleft;
-    int reg;
-
-    memclrw(&opleft, sizeof(Operand));
-    GEN_NODE_TO_GPR(left, &opleft, left->rtype, 0);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-
-    if (opcode == PC_MULLI && value == 0)
-        emitpcode(PC_LI, reg, 0);
-    else if (opcode == PC_MULLI && value == 1)
-        emitpcode(PC_MR, reg, opleft.reg);
-    else
-        emitpcode(opcode, reg, opleft.reg, value);
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-void unary_operator(Opcode opcode, ENode *expr, short outputReg, Operand *output) {
-    Operand op;
-    int reg;
-
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE_TO_GPR(expr, &op, expr->rtype, 0);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    emitpcode(opcode, reg, op.reg);
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-static void or_xor_immediate(Opcode opcode, ENode *expr, SInt32 value, short outputReg, Operand *output) {
-    Operand op;
-    int reg;
-
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE_TO_GPR(expr, &op, expr->rtype, 0);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-
-    if (expr->rtype->size > 2 && value != (value & 0xFFFF)) {
-        if (value & 0xFFFF) {
-            emitpcode((opcode == PC_ORI) ? PC_ORIS : PC_XORIS, reg, op.reg, value >> 16);
-            emitpcode(opcode, reg, reg, value & 0xFFFF);
-        } else {
-            emitpcode((opcode == PC_ORI) ? PC_ORIS : PC_XORIS, reg, op.reg, value >> 16);
-        }
-    } else {
-        emitpcode(opcode, reg, op.reg, value & 0xFFFF);
-    }
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-static void shift_left_immediate(ENode *expr, short shift, short negate, short outputReg, Operand *output) {
-    Operand op;
-    int reg;
-
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE_TO_GPR(expr, &op, expr->rtype, 0);
-
-    if (negate)
-        reg = ALLOC_GPR();
-    else
-        reg = outputReg ? outputReg : ALLOC_GPR();
-
-    emitpcode(PC_RLWINM, reg, op.reg, shift & 31, 0, 31 - (shift & 31));
-
-    if (negate) {
-        int tmp = outputReg ? outputReg : ALLOC_GPR();
-        emitpcode(PC_NEG, tmp, reg);
-        reg = tmp;
-    }
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-static void shift_right_immediate(ENode *expr, Type *type, short shift, short outputReg, Operand *output) {
-    Operand op;
-    int reg;
-
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE_TO_GPR(expr, &op, expr->rtype, 0);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-
-    if (is_unsigned(type))
-        emitpcode(PC_RLWINM, reg, op.reg, (32 - (shift & 31)) & 31, (shift & 31) + (32 - (type->size * 8)), 31);
-    else
-        emitpcode(PC_SRAWI, reg, op.reg, shift & 31);
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-static void signed_divide_by_power_of_2(ENode *expr, int shift, int negate, short outputReg, Operand *output) {
-    Operand op;
-    int reg;
-    int tmpreg1;
-    int tmpreg2;
-
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE_TO_GPR(expr, &op, expr->rtype, 0);
-
-    if (!copts.optimizesize && shift == 1) {
-        tmpreg1 = ALLOC_GPR();
-        emitpcode(PC_RLWINM, tmpreg1, op.reg, 1, 31, 31);
-        tmpreg2 = ALLOC_GPR();
-        emitpcode(PC_ADD, tmpreg2, tmpreg1, op.reg);
-        reg = (outputReg && !negate) ? outputReg : ALLOC_GPR();
-        emitpcode(PC_SRAWI, reg, tmpreg2, 1);
-    } else {
-        tmpreg1 = ALLOC_GPR();
-        emitpcode(PC_SRAWI, tmpreg1, op.reg, shift);
-        reg = (outputReg && !negate) ? outputReg : ALLOC_GPR();
-        emitpcode(PC_ADDZE, reg, tmpreg1);
-    }
-
-    if (negate) {
-        int prevreg = reg;
-        reg = outputReg ? outputReg : ALLOC_GPR();
-        emitpcode(PC_NEG, reg, prevreg);
-    }
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-static void signed_mod_by_power_of_2(ENode *expr, int shift, int negate, short outputReg, Operand *output) {
-    Operand op;
-    int reg;
-    int tmpreg1;
-    int tmpreg2;
-    int tmpreg3;
-    int tmpreg4;
-
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE_TO_GPR(expr, &op, expr->rtype, 0);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    tmpreg1 = ALLOC_GPR();
-    tmpreg2 = ALLOC_GPR();
-    tmpreg3 = ALLOC_GPR();
-
-    if (shift == 1) {
-        emitpcode(PC_RLWINM, tmpreg1, op.reg, 1, 31, 31);
-        emitpcode(PC_RLWINM, tmpreg2, op.reg, 0, 31, 31);
-        emitpcode(PC_XOR, tmpreg3, tmpreg2, tmpreg1);
-        emitpcode(PC_SUBF, reg, tmpreg1, tmpreg3);
-    } else {
-        tmpreg4 = ALLOC_GPR();
-        emitpcode(PC_RLWINM, tmpreg1, op.reg, 32 - shift, 0, 31 - (32 - shift));
-        emitpcode(PC_RLWINM, tmpreg2, op.reg, 1, 31, 31);
-        emitpcode(PC_SUBF, tmpreg3, tmpreg2, tmpreg1);
-        emitpcode(PC_RLWINM, tmpreg4, tmpreg3, shift, 0, 31);
-        emitpcode(PC_ADD, reg, tmpreg4, tmpreg2);
-    }
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-static void fp_binary_operator(Opcode opcode, ENode *left, ENode *right, short outputReg, Operand *output) {
-    Operand opleft;
-    Operand opright;
-    int reg;
-
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE_TO_FPR(right, &opright, right->rtype, 0);
-        GEN_NODE_TO_FPR(left, &opleft, left->rtype, 0);
-    } else {
-        GEN_NODE_TO_FPR(left, &opleft, left->rtype, 0);
-        GEN_NODE_TO_FPR(right, &opright, right->rtype, 0);
-    }
-
-    reg = outputReg ? outputReg : ALLOC_FPR();
-    emitpcode(opcode, reg, opleft.reg, opright.reg);
-
-    output->optype = OpndType_FPR;
-    output->reg = reg;
-}
-
-void fp_unary_operator(Opcode opcode, ENode *expr, short outputReg, Operand *output) {
-    Operand op;
-    int reg;
-
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE_TO_FPR(expr, &op, expr->rtype, 0);
-
-    reg = outputReg ? outputReg : ALLOC_FPR();
-    emitpcode(opcode, reg, op.reg);
-
-    output->optype = OpndType_FPR;
-    output->reg = reg;
-}
-
-void fp_multiply_add(Opcode opcode, ENode *a, ENode *b, ENode *c, short outputReg, Operand *output) {
-    Operand opA;
-    Operand opB;
-    Operand opC;
-    int reg;
-
-    memclrw(&opA, sizeof(Operand));
-    memclrw(&opB, sizeof(Operand));
-    memclrw(&opC, sizeof(Operand));
-
-    if (c->hascall) {
-        GEN_NODE_TO_FPR(c, &opC, c->rtype, 0);
-        if (b->hascall) {
-            GEN_NODE_TO_FPR(b, &opB, b->rtype, 0);
-            GEN_NODE_TO_FPR(a, &opA, a->rtype, 0);
-        } else {
-            GEN_NODE_TO_FPR(a, &opA, a->rtype, 0);
-            GEN_NODE_TO_FPR(b, &opB, b->rtype, 0);
-        }
-    } else {
-        if (b->hascall) {
-            GEN_NODE_TO_FPR(b, &opB, b->rtype, 0);
-            GEN_NODE_TO_FPR(a, &opA, a->rtype, 0);
-            GEN_NODE_TO_FPR(c, &opC, c->rtype, 0);
-        } else {
-            GEN_NODE_TO_FPR(a, &opA, a->rtype, 0);
-            GEN_NODE_TO_FPR(b, &opB, b->rtype, 0);
-            GEN_NODE_TO_FPR(c, &opC, c->rtype, 0);
-        }
-    }
-
-    reg = outputReg ? outputReg : ALLOC_FPR();
-    emitpcode(opcode, reg, opA.reg, opB.reg, opC.reg);
-
-    output->optype = OpndType_FPR;
-    output->reg = reg;
-}
-
-void gen_COMPARE(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    expr = evaluate_and_skip_comma(expr);
-    if (TYPE_IS_8BYTES(expr->data.diadic.right->rtype) || TYPE_IS_8BYTES(expr->data.diadic.left->rtype))
-        I8_gen_condition(expr, output, 1);
-    else
-        gen_condition_gpr(expr, output, outputReg);
-}
-
-void gen_LOGICAL(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-    ENodeType op;
-
-    expr = evaluate_and_skip_comma(expr);
-    inner = evaluate_and_skip_comma(expr->data.monadic);
-    expr->data.monadic = inner;
-
-    if (ENODE_IS(expr, ELOGNOT) && !ENODE_IS2(inner, ELAND, ELOR)) {
-        op = inner->type;
-        if (ENODE_IS(inner, ELOGNOT)) {
-            switch (inner->data.monadic->type) {
-                case ELOGNOT:
-                case ELESS:
-                case EGREATER:
-                case ELESSEQU:
-                case EGREATEREQU:
-                case EEQU:
-                case ENOTEQU:
-                case ELAND:
-                case ELOR:
-                    GEN_NODE(inner->data.monadic, output);
-                    if (expr->data.monadic->rtype->size < 4)
-                        extend32(output, expr->data.monadic->rtype, 0);
-                    ENSURE_GPR(output, expr->data.monadic->rtype, 0);
-                    return;
-            }
-        }
-
-        if (ENODE_IS(inner, ENOTEQU) && !TYPE_IS_8BYTES(inner->data.diadic.left->rtype) && ENODE_IS(inner->data.diadic.right, EINTCONST) && inner->data.diadic.right->data.intval.lo == 0) {
-            int tmpreg1;
-            int tmpreg2;
-            GEN_NODE(inner->data.diadic.left, output);
-            if (inner->data.diadic.left->rtype->size < 4)
-                extend32(output, inner->data.diadic.left->rtype, 0);
-            ENSURE_GPR(output, inner->data.diadic.left->rtype, 0);
-
-            tmpreg1 = ALLOC_GPR();
-            tmpreg2 = ALLOC_GPR();
-            CError_ASSERT(4853, output->optype == OpndType_GPR);
-
-            emitpcode(PC_CNTLZW, tmpreg2, output->reg);
-            emitpcode(PC_RLWINM, tmpreg1, tmpreg2, 27, 5, 31);
-            output->optype = OpndType_GPR;
-            output->reg = tmpreg1;
-        } else {
-            int tmpreg1;
-            int tmpreg2;
-            ENodeType inverted;
-
-            inverted = invert_relop(op);
-            if (op != inverted && !IS_TYPE_FLOAT(inner->data.diadic.left->rtype)) {
-                inner->type = inverted;
-                gen_COMPARE(inner, 0, 0, output);
-                inner->type = inverted;
-                return;
-            }
-
-            GEN_NODE(inner, output);
-            if (inner->rtype->size < 4)
-                extend32(output, inner->rtype, 0);
-            ENSURE_GPR(output, inner->rtype, 0);
-
-            tmpreg1 = ALLOC_GPR();
-            tmpreg2 = ALLOC_GPR();
-            CError_ASSERT(4883, output->optype == OpndType_GPR);
-
-            emitpcode(PC_CNTLZW, tmpreg2, output->reg);
-            emitpcode(PC_RLWINM, tmpreg1, tmpreg2, 27, 5, 31);
-            output->optype = OpndType_GPR;
-            output->reg = tmpreg1;
-        }
-    } else {
-        PCodeLabel *label1;
-        PCodeLabel *label2;
-        int tmpreg;
-
-        label1 = makepclabel();
-        label2 = makepclabel();
-
-        tmpreg = ALLOC_GPR();
-        emitpcode(PC_LI, tmpreg, 0);
-        logical_expression(expr, label1, label2, label1);
-        branch_label(label1);
-        emitpcode(PC_LI, tmpreg, 1);
-        branch_label(label2);
-        output->optype = OpndType_GPR;
-        output->reg = tmpreg;
-    }
-}
-
-void gen_NULLCHECK(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    Operand opleft;
-    Operand opright;
-    PrecomputedOperand *precomp;
-    int flag;
-    int reg;
-    PCodeLabel *label;
-
-    left = expr->data.nullcheck.nullcheckexpr;
-    right = expr->data.nullcheck.condexpr;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-    flag = !IS_TYPE_VOID(expr->rtype) && !expr->ignored;
-
-    GEN_NODE(left, &opleft);
-    if (left->rtype->size < 4)
-        extend32(&opleft, left->rtype, 0);
-    ENSURE_GPR(&opleft, left->rtype, 0);
-
-    precomp = lalloc(sizeof(PrecomputedOperand));
-    precomp->precompid = expr->data.nullcheck.precompid;
-    precomp->operand = opleft;
-    precomp->next = precomputedoperands;
-    precomputedoperands = precomp;
-
-    emitpcode(PC_CMPI, 0, opleft.reg, 0);
-    if (flag) {
-        emitpcode(PC_MR, reg = ALLOC_GPR(), opleft.reg);
-    }
-
-    label = makepclabel();
-    branch_conditional(0, EEQU, 1, label);
-    GEN_NODE(right, &opright);
-    precomputedoperands = precomputedoperands->next;
-
-    if (flag) {
-        ENSURE_GPR(&opright, right->rtype, reg);
-        if (opright.reg != reg)
-            emitpcode(PC_MR, reg, opright.reg);
-        output->optype = OpndType_GPR;
-        output->reg = reg;
-    }
-
-    branch_label(label);
-}
-
-void gen_PRECOMP(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    PrecomputedOperand *precomp;
-
-    for (precomp = precomputedoperands; precomp; precomp = precomp->next) {
-        if (precomp->precompid == expr->data.precompid)
-            break;
-    }
-
-    *output = precomp->operand;
-}
-
-void logical_expression(ENode *cond, PCodeLabel *if_true, PCodeLabel *if_false, PCodeLabel *end) {
-    PCodeLabel *label;
-    Operand op;
-    memclrw(&op, sizeof(Operand));
-
-    cond = evaluate_and_skip_comma(cond);
-    switch (cond->type) {
-        case ELAND:
-            label = makepclabel();
-            logical_expression(cond->data.diadic.left, label, if_false, label);
-            branch_label(label);
-            logical_expression(cond->data.diadic.right, if_true, if_false, end);
-            break;
-        case ELOR:
-            label = makepclabel();
-            logical_expression(cond->data.diadic.left, if_true, label, label);
-            branch_label(label);
-            logical_expression(cond->data.diadic.right, if_true, if_false, end);
-            break;
-        case ELOGNOT:
-            logical_expression(cond->data.monadic, if_false, if_true, end);
-            break;
-        case ELESS:
-        case EGREATER:
-        case ELESSEQU:
-        case EGREATEREQU:
-        case EEQU:
-        case ENOTEQU:
-            if (TYPE_IS_8BYTES(cond->data.diadic.right->rtype) || TYPE_IS_8BYTES(cond->data.diadic.left->rtype))
-                I8_gen_condition(cond, &op, 0);
-            else
-                gen_condition(cond, &op);
-
-            if (end == if_true)
-                branch_conditional(op.reg, op.regOffset, 0, if_false);
-            else
-                branch_conditional(op.reg, op.regOffset, 1, if_true);
-            break;
-        default:
-            CError_FATAL(5160);
-    }
-}
-
-static void logical_expression_nobranch(ENode *cond, Boolean invert, Operand *output) {
-    cond = evaluate_and_skip_comma(cond);
-    switch (cond->type) {
-        case ELOGNOT:
-            logical_expression_nobranch(cond->data.monadic, 1, output);
-            break;
-        case ELESS:
-        case EGREATER:
-        case ELESSEQU:
-        case EGREATEREQU:
-        case EEQU:
-        case ENOTEQU:
-            if (invert) {
-                ENodeType nt = invert_relop(cond->type);
-                CError_ASSERT(5190, nt != cond->type);
-                cond->type = nt;
-            }
-
-            if (TYPE_IS_8BYTES(cond->data.diadic.right->rtype) || TYPE_IS_8BYTES(cond->data.diadic.left->rtype))
-                I8_gen_condition(cond, output, 0);
-            else
-                gen_condition(cond, output);
-
-            break;
-        default:
-            CError_FATAL(5206);
-    }
-}
-
-static ENodeType invert_relop(ENodeType nt) {
-    switch (nt) {
-        case ELESS: return EGREATEREQU;
-        case EGREATER: return ELESSEQU;
-        case ELESSEQU: return EGREATER;
-        case EGREATEREQU: return ELESS;
-        case EEQU: return ENOTEQU;
-        case ENOTEQU: return EEQU;
-        default: return nt;
-    }
-}
-
-static int reverse_relop(int nt) {
-    switch (nt) {
-        case ELESS: return EGREATER;
-        case EGREATER: return ELESS;
-        case ELESSEQU: return EGREATEREQU;
-        case EGREATEREQU: return ELESSEQU;
-        default: return nt;
-    }
-}
-
-void gen_condition(ENode *cond, Operand *output) {
-    ENode *left;
-    ENode *right;
-
-    left = cond->data.diadic.left;
-    right = cond->data.diadic.right;
-    if (IS_TYPE_FLOAT(left->rtype)) {
-        compare_floating(cond->type, left, right, output);
-        return;
-    }
-
-    if (ENODE_IS(right, EINTCONST)) {
-        if (is_unsigned(left->rtype)) {
-            UInt32 val = right->data.intval.lo;
-            if (FITS_IN_USHORT(val)) {
-                compare_immediate(cond->type, left, val, output);
-                return;
-            } else if (ENODE_IS2(cond, EEQU, ENOTEQU)) {
-                compare_immediate_long(cond->type, left, val, output);
-                return;
-            }
-        } else {
-            UInt32 val = right->data.intval.lo;
-            if (FITS_IN_SHORT(val)) {
-                compare_immediate(cond->type, left, val, output);
-                return;
-            } else if (ENODE_IS2(cond, EEQU, ENOTEQU)) {
-                compare_immediate_long(cond->type, left, val, output);
-                return;
-            }
-        }
-    } else if (ENODE_IS(left, EINTCONST)) {
-        if (is_unsigned(right->rtype)) {
-            UInt32 val = left->data.intval.lo;
-            if (FITS_IN_USHORT(val)) {
-                compare_immediate(reverse_relop(cond->type), right, val, output);
-                return;
-            } else if (ENODE_IS2(cond, EEQU, ENOTEQU)) {
-                compare_immediate_long(reverse_relop(cond->type), right, val, output);
-                return;
-            }
-        } else {
-            UInt32 val = left->data.intval.lo;
-            if (FITS_IN_SHORT(val)) {
-                compare_immediate(reverse_relop(cond->type), right, val, output);
-                return;
-            } else if (ENODE_IS2(cond, EEQU, ENOTEQU)) {
-                compare_immediate_long(reverse_relop(cond->type), right, val, output);
-                return;
-            }
-        }
-    }
-
-    compare_integer(cond->type, left, right, output);
-}
-
-void gen_condition_gpr(ENode *cond, Operand *output, short outputReg) {
-    ENode *left;
-    ENode *right;
-    Operand condOp;
-    int finalReg;
-    int tmpReg;
-    int tmpReg2;
-    int tmpReg3;
-    int tmpReg4;
-    int a;
-    int b;
-
-    left = cond->data.diadic.left;
-    right = cond->data.diadic.right;
-    memclrw(&condOp, sizeof(Operand));
-
-    if (!IS_TYPE_FLOAT(left->rtype)) {
-        Operand op1;
-        Operand op2;
-        Operand opTmp;
-        memclrw(&op1, sizeof(Operand));
-        memclrw(&op2, sizeof(Operand));
-        memclrw(&opTmp, sizeof(Operand));
-
-        if (right->hascall) {
-            GEN_NODE(right, &op2);
-            if (!IS_INT_CONST_ZERO(right)) {
-                if (right->rtype->size < 4)
-                    extend32(&op2, right->rtype, 0);
-                ENSURE_GPR(&op2, right->rtype, 0);
-            }
-
-            GEN_NODE(left, &op1);
-            if (left->rtype->size < 4)
-                extend32(&op1, left->rtype, 0);
-            ENSURE_GPR(&op1, left->rtype, 0);
-        } else {
-            GEN_NODE(left, &op1);
-            ENSURE_GPR(&op1, left->rtype, 0);
-            if (left->rtype->size < 4)
-                extend32(&op1, left->rtype, 0);
-
-            GEN_NODE(right, &op2);
-            if (!IS_INT_CONST_ZERO(right)) {
-                if (right->rtype->size < 4)
-                    extend32(&op2, right->rtype, 0);
-                ENSURE_GPR(&op2, right->rtype, 0);
-            }
-        }
-
-        switch (cond->type) {
-            case EEQU:
-                if (
-                    copts.peephole &&
-                    IS_INT_CONST(right) &&
-                    pclastblock->pcodeCount > 0 &&
-                    pclastblock->lastPCode->op == PC_RLWINM &&
-                    pclastblock->lastPCode->args[0].data.reg.reg == op1.reg
-                    )
-                {
-                    PCode *pc = pclastblock->lastPCode;
-                    SInt32 a = pc->args[2].data.imm.value;
-                    SInt32 b = pc->args[3].data.imm.value;
-                    SInt32 value = right->data.intval.lo;
-                    if (b == pc->args[4].data.imm.value) {
-                        finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-                        if (value != (value & 1)) {
-                            emitpcode(PC_LI, finalReg, 0);
-                        } else if (value == 0) {
-                            tmpReg = ALLOC_GPR();
-                            emitpcode(
-                                    PC_RLWINM, tmpReg,
-                                    pc->args[1].data.reg.reg,
-                                    (a + b + 1) & 31, 31, 31);
-                            emitpcode(PC_XORI, finalReg, tmpReg, 1);
-                        } else if (value == 1) {
-                            emitpcode(
-                                    PC_RLWINM, finalReg,
-                                    pc->args[1].data.reg.reg,
-                                    (a + b + 1) & 31, 31, 31);
-                        } else {
-                            CError_FATAL(5434);
-                        }
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                        return;
-                    }
-                }
-
-                if (IS_INT_CONST_ZERO(right)) {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_CNTLZW, tmpReg, op1.reg, 0);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_RLWINM, finalReg, tmpReg, 27, 5, 31);
-                    output->optype = OpndType_GPR;
-                    output->reg = finalReg;
-                    return;
-                } else {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_SUBF, tmpReg, op1.reg, op2.reg);
-                    tmpReg2 = ALLOC_GPR();
-                    emitpcode(PC_CNTLZW, tmpReg2, tmpReg);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_RLWINM, finalReg, tmpReg2, 27, 5, 31);
-                    output->optype = OpndType_GPR;
-                    output->reg = finalReg;
-                    return;
-                }
-
-            case ENOTEQU:
-                if (
-                    copts.peephole &&
-                    IS_INT_CONST(right) &&
-                    pclastblock->pcodeCount > 0 &&
-                    pclastblock->lastPCode->op == PC_RLWINM &&
-                    pclastblock->lastPCode->args[0].data.reg.reg == op1.reg
-                    )
-                {
-                    PCode *pc = pclastblock->lastPCode;
-                    SInt32 a = pc->args[2].data.imm.value;
-                    SInt32 b = pc->args[3].data.imm.value;
-                    SInt32 value = right->data.intval.lo;
-                    if (b == pc->args[4].data.imm.value) {
-                        finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-                        if (value != (value & 1)) {
-                            emitpcode(PC_LI, finalReg, 1);
-                        } else if (value == 0) {
-                            emitpcode(
-                                    PC_RLWINM, finalReg,
-                                    pc->args[1].data.reg.reg,
-                                    (a + b + 1) & 31, 31, 31);
-                        } else if (value == 1) {
-                            tmpReg = ALLOC_GPR();
-                            emitpcode(
-                                    PC_RLWINM, tmpReg,
-                                    pc->args[1].data.reg.reg,
-                                    (a + b + 1) & 31, 31, 31);
-                            emitpcode(PC_XORI, finalReg, tmpReg, 1);
-                        } else {
-                            CError_FATAL(5503);
-                        }
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                        return;
-                    }
-                }
-
-                if (IS_INT_CONST_ZERO(right)) {
-                    if (copts.optimizesize) {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(PC_ADDIC, tmpReg, op1.reg, -1);
-                        finalReg = outputReg ? outputReg : ALLOC_GPR();
-                        emitpcode(PC_SUBFE, finalReg, tmpReg, op1.reg);
-                    } else {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(PC_NEG, tmpReg, op1.reg);
-                        tmpReg2 = ALLOC_GPR();
-                        emitpcode(PC_OR, tmpReg2, tmpReg, op1.reg);
-                        finalReg = outputReg ? outputReg : ALLOC_GPR();
-                        emitpcode(PC_RLWINM, finalReg, tmpReg2, 1, 31, 31);
-                    }
-                    output->optype = OpndType_GPR;
-                    output->reg = finalReg;
-                    return;
-                }
-
-                if (copts.optimizesize) {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_SUBF, tmpReg, op1.reg, op2.reg);
-                    tmpReg2 = ALLOC_GPR();
-                    emitpcode(PC_ADDIC, tmpReg2, tmpReg, -1);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_SUBFE, finalReg, tmpReg2, tmpReg);
-                } else {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_SUBF, tmpReg, op1.reg, op2.reg);
-                    tmpReg2 = ALLOC_GPR();
-                    emitpcode(PC_SUBF, tmpReg2, op2.reg, op1.reg);
-                    tmpReg3 = ALLOC_GPR();
-                    emitpcode(PC_OR, tmpReg3, tmpReg, tmpReg2);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_RLWINM, finalReg, tmpReg3, 1, 31, 31);
-                }
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-
-            case EGREATEREQU:
-                if (!is_unsigned(left->rtype) && IS_INT_CONST_ZERO(right)) {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_RLWINM, tmpReg, op1.reg, 1, 31, 31);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_XORI, finalReg, tmpReg, 1);
-                    output->optype = OpndType_GPR;
-                    output->reg = finalReg;
-                    return;
-                }
-                opTmp = op2;
-                op2 = op1;
-                op1 = opTmp;
-
-            case ELESSEQU:
-                if (is_unsigned(left->rtype)) {
-                    if (copts.optimizesize) {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(PC_LI, tmpReg, -1);
-                        tmpReg2 = ALLOC_GPR();
-                        emitpcode(PC_SUBFC, tmpReg2, op1.reg, op2.reg);
-                        finalReg = outputReg ? outputReg : ALLOC_GPR();
-                        emitpcode(PC_SUBFZE, finalReg, tmpReg);
-                    } else {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(PC_SUBF, tmpReg, op1.reg, op2.reg);
-                        tmpReg2 = ALLOC_GPR();
-                        emitpcode(PC_ORC, tmpReg2, op2.reg, op1.reg);
-                        tmpReg3 = ALLOC_GPR();
-                        emitpcode(PC_RLWINM, tmpReg3, tmpReg, 31, 1, 31);
-                        tmpReg4 = ALLOC_GPR();
-                        emitpcode(PC_SUBF, tmpReg4, tmpReg3, tmpReg2);
-                        finalReg = outputReg ? outputReg : ALLOC_GPR();
-                        emitpcode(PC_RLWINM, finalReg, tmpReg4, 1, 31, 31);
-                    }
-                    output->optype = OpndType_GPR;
-                    output->reg = finalReg;
-                    return;
-                }
-
-                if (IS_INT_CONST_ZERO(right)) {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_LI, tmpReg, 1);
-                    tmpReg2 = ALLOC_GPR();
-                    emitpcode(PC_CNTLZW, tmpReg2, op1.reg);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_RLWNM, finalReg, tmpReg, tmpReg2, 31, 31);
-                    output->optype = OpndType_GPR;
-                    output->reg = finalReg;
-                    return;
-                }
-
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_SRAWI, tmpReg2, op2.reg, 31);
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_RLWINM, tmpReg, op1.reg, 1, 31, 31);
-                tmpReg3 = ALLOC_GPR();
-                emitpcode(PC_SUBFC, tmpReg3, op1.reg, op2.reg);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_ADDE, finalReg, tmpReg2, tmpReg);
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-
-            case EGREATER:
-                if (!is_unsigned(left->rtype) && IS_INT_CONST_ZERO(right)) {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_NEG, tmpReg, op1.reg);
-                    tmpReg2 = ALLOC_GPR();
-                    emitpcode(PC_ANDC, tmpReg2, tmpReg, op1.reg);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_RLWINM, finalReg, tmpReg2, 1, 31, 31);
-                    output->optype = OpndType_GPR;
-                    output->reg = finalReg;
-                    return;
-                }
-
-                opTmp = op2;
-                op2 = op1;
-                op1 = opTmp;
-
-            case ELESS:
-                if (is_unsigned(left->rtype)) {
-                    if (left->rtype->size <= 2) {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(PC_SUBF, tmpReg, op2.reg, op1.reg);
-                        finalReg = outputReg ? outputReg : ALLOC_GPR();
-                        emitpcode(PC_RLWINM, finalReg, tmpReg, 1, 31, 31);
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                    } else {
-                        if (copts.optimizesize) {
-                            tmpReg = ALLOC_GPR();
-                            emitpcode(PC_SUBFC, tmpReg, op2.reg, op1.reg);
-                            tmpReg2 = ALLOC_GPR();
-                            emitpcode(PC_SUBFE, tmpReg2, tmpReg, tmpReg);
-                            finalReg = outputReg ? outputReg : ALLOC_GPR();
-                            emitpcode(PC_NEG, finalReg, tmpReg2);
-                        } else {
-                            tmpReg = ALLOC_GPR();
-                            emitpcode(PC_XOR, tmpReg, op2.reg, op1.reg);
-                            tmpReg2 = ALLOC_GPR();
-                            emitpcode(PC_CNTLZW, tmpReg2, tmpReg);
-                            tmpReg3 = ALLOC_GPR();
-                            emitpcode(PC_SLW, tmpReg3, op2.reg, tmpReg2);
-                            finalReg = outputReg ? outputReg : ALLOC_GPR();
-                            emitpcode(PC_RLWINM, finalReg, tmpReg3, 1, 31, 31);
-                        }
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                        return;
-                    }
-                    return;
-                }
-
-                if (IS_INT_CONST_ZERO(right)) {
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_RLWINM, finalReg, op1.reg, 1, 31, 31);
-                    output->optype = OpndType_GPR;
-                    output->reg = finalReg;
-                    return;
-                }
-
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_XOR, tmpReg, op2.reg, op1.reg);
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_SRAWI, tmpReg2, tmpReg, 1);
-                tmpReg3 = ALLOC_GPR();
-                emitpcode(PC_AND, tmpReg3, tmpReg, op2.reg);
-                tmpReg4 = ALLOC_GPR();
-                emitpcode(PC_SUBF, tmpReg4, tmpReg3, tmpReg2);
-
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_RLWINM, finalReg, tmpReg4, 1, 31, 31);
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-
-            default:
-                CError_FATAL(5777);
-        }
-    }
-
-    gen_condition(cond, &condOp);
-    emitpcode(PC_MFCR, tmpReg = used_virtual_registers[RegClass_GPR]++);
-    a = 0;
-    b = condOp.reg * 4;
-    switch (condOp.regOffset) {
-        case ENOTEQU:
-            a = 1;
-        case EEQU:
-            b += 2;
-            break;
-        case EGREATEREQU:
-            a = 1;
-            break;
-        case ELESSEQU:
-            a = 1;
-        case EGREATER:
-            b += 1;
-            break;
-    }
-
-    finalReg = outputReg ? outputReg : ALLOC_GPR();
-    if (a) {
-        emitpcode(PC_RLWINM, tmpReg, tmpReg, b + 1, 31, 31);
-        emitpcode(PC_XORI, finalReg, tmpReg, 1);
-    } else {
-        emitpcode(PC_RLWINM, finalReg, tmpReg, b + 1, 31, 31);
-    }
-    output->optype = OpndType_GPR;
-    output->reg = finalReg;
-}
-
-void gen_negated_condition_gpr(ENode *cond, Operand *output, short outputReg) {
-    ENode *left;
-    ENode *right;
-    Operand op1;
-    Operand op2;
-    Operand opTmp;
-    int finalReg;
-    int tmpReg;
-    int tmpReg2;
-    int tmpReg3;
-
-    left = cond->data.diadic.left;
-    right = cond->data.diadic.right;
-    CError_ASSERT(5843, TYPE_FITS_IN_REGISTER(left->rtype) && TYPE_FITS_IN_REGISTER(right->rtype));
-
-    memclrw(&op1, sizeof(Operand));
-    memclrw(&op2, sizeof(Operand));
-    memclrw(&opTmp, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE(right, &op2);
-        if (!IS_INT_CONST_ZERO(right)) {
-            if (right->rtype->size < 4)
-                extend32(&op2, right->rtype, 0);
-            ENSURE_GPR(&op2, right->rtype, 0);
-        }
-
-        GEN_NODE(left, &op1);
-        if (left->rtype->size < 4)
-            extend32(&op1, left->rtype, 0);
-        ENSURE_GPR(&op1, left->rtype, 0);
-    } else {
-        GEN_NODE(left, &op1);
-        ENSURE_GPR(&op1, left->rtype, 0);
-        if (left->rtype->size < 4)
-            extend32(&op1, left->rtype, 0);
-
-        GEN_NODE(right, &op2);
-        if (!IS_INT_CONST_ZERO(right)) {
-            if (right->rtype->size < 4)
-                extend32(&op2, right->rtype, 0);
-            ENSURE_GPR(&op2, right->rtype, 0);
-        }
-    }
-
-    switch (cond->type) {
-        case EEQU:
-            if (
-                copts.peephole &&
-                IS_INT_CONST(right) &&
-                pclastblock->pcodeCount > 0 &&
-                pclastblock->lastPCode->op == PC_RLWINM &&
-                pclastblock->lastPCode->args[0].data.reg.reg == op1.reg
-                )
-            {
-                PCode *pc = pclastblock->lastPCode;
-                SInt32 a = pc->args[2].data.imm.value;
-                SInt32 b = pc->args[3].data.imm.value;
-                SInt32 value = right->data.intval.lo;
-                if (b == pc->args[4].data.imm.value) {
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-                    if (value != (value & 1)) {
-                        emitpcode(PC_LI, finalReg, 0);
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                        return;
-                    }
-
-                    if (value == 0) {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(
-                            PC_RLWINM, tmpReg,
-                            pc->args[1].data.reg.reg,
-                            (a + b + 1) & 31, 31, 31);
-                        emitpcode(PC_ADDI, finalReg, tmpReg, 0, -1);
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                        return;
-                    }
-
-                    if (value == 1) {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(
-                            PC_RLWINM,
-                            tmpReg,
-                            pc->args[1].data.reg.reg,
-                            (a + b + 1) & 31,
-                            31,
-                            31);
-                        emitpcode(PC_NEG, finalReg, tmpReg);
-                        output->optype = OpndType_GPR;
-                        output->reg = tmpReg; // bug???
-                        return;
-                    }
-
-                    CError_FATAL(5923);
-                }
-            }
-
-            if (IS_INT_CONST_ZERO(right)) {
-                if (copts.optimizesize) {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_ADDIC, tmpReg, op1.reg, -1);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_SUBFE, finalReg, tmpReg, tmpReg);
-                } else {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_CNTLZW, tmpReg, op1.reg);
-                    tmpReg2 = ALLOC_GPR();
-                    emitpcode(PC_RLWINM, tmpReg2, tmpReg, 27, 31, 31);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_NEG, finalReg, tmpReg2);
-                }
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-            }
-
-            if (copts.optimizesize) {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_SUBF, tmpReg, op2.reg, op1.reg);
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_ADDIC, tmpReg2, tmpReg, -1);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SUBFE, finalReg, tmpReg2, tmpReg2);
-            } else {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_SUBF, tmpReg, op2.reg, op1.reg);
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_SUBF, tmpReg2, op1.reg, op2.reg);
-                tmpReg3 = ALLOC_GPR();
-                emitpcode(PC_NOR, tmpReg3, tmpReg, tmpReg2);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SRAWI, finalReg, tmpReg3, 31);
-            }
-            output->optype = OpndType_GPR;
-            output->reg = finalReg;
-            return;
-
-        case ENOTEQU:
-            if (
-                copts.peephole &&
-                IS_INT_CONST(right) &&
-                pclastblock->pcodeCount > 0 &&
-                pclastblock->lastPCode->op == PC_RLWINM &&
-                pclastblock->lastPCode->args[0].data.reg.reg == op1.reg
-                )
-            {
-                PCode *pc = pclastblock->lastPCode;
-                SInt32 a = pc->args[2].data.imm.value;
-                SInt32 b = pc->args[3].data.imm.value;
-                SInt32 value = right->data.intval.lo;
-                if (b == pc->args[4].data.imm.value) {
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-
-                    if (value != (value & 1)) {
-                        emitpcode(PC_LI, finalReg, -1);
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                        return;
-                    }
-
-                    if (value == 0) {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(
-                            PC_RLWINM, tmpReg,
-                            pc->args[1].data.reg.reg,
-                            (a + b + 1) & 31, 31, 31);
-                        emitpcode(PC_NEG, finalReg, tmpReg);
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                        return;
-                    }
-
-                    if (value == 1) {
-                        tmpReg = ALLOC_GPR();
-                        emitpcode(
-                            PC_RLWINM, tmpReg,
-                            pc->args[1].data.reg.reg,
-                            (a + b + 1) & 31, 31, 31);
-                        emitpcode(PC_ADDI, finalReg, tmpReg, 0, -1);
-                        output->optype = OpndType_GPR;
-                        output->reg = finalReg;
-                        return;
-                    }
-
-                    CError_FATAL(6031);
-                }
-            }
-
-            if (IS_INT_CONST_ZERO(right)) {
-                if (copts.optimizesize) {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_SUBFIC, tmpReg, op1.reg, 0);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_SUBFE, finalReg, tmpReg, tmpReg);
-                } else {
-                    tmpReg = ALLOC_GPR();
-                    emitpcode(PC_NEG, tmpReg, op1.reg);
-                    tmpReg2 = ALLOC_GPR();
-                    emitpcode(PC_OR, tmpReg2, tmpReg, op1.reg);
-                    finalReg = outputReg ? outputReg : ALLOC_GPR();
-                    emitpcode(PC_SRAWI, finalReg, tmpReg2, 31);
-                }
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-            }
-
-            if (copts.optimizesize) {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_SUBF, tmpReg, op2.reg, op1.reg);
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_SUBFIC, tmpReg2, tmpReg, 0);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SUBFE, finalReg, tmpReg2, tmpReg2);
-            } else {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_SUBF, tmpReg, op2.reg, op1.reg);
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_SUBF, tmpReg2, op1.reg, op2.reg);
-                tmpReg3 = ALLOC_GPR();
-                emitpcode(PC_OR, tmpReg3, tmpReg, tmpReg2);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SRAWI, finalReg, tmpReg3, 31);
-            }
-            output->optype = OpndType_GPR;
-            output->reg = finalReg;
-            return;
-
-        case EGREATEREQU:
-            if (!is_unsigned(left->rtype) && IS_INT_CONST_ZERO(right)) {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_RLWINM, tmpReg, op1.reg, 1, 31, 31);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_ADDI, finalReg, tmpReg, 0, -1);
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-            }
-            opTmp = op2;
-            op2 = op1;
-            op1 = opTmp;
-
-        case ELESSEQU:
-            if (is_unsigned(left->rtype)) {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_SUBFC, tmpReg, op1.reg, op2.reg);
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_ADDZE, tmpReg2, op1.reg);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SUBF, finalReg, tmpReg2, op1.reg);
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-            }
-
-            if (IS_INT_CONST_ZERO(right)) {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_NEG, tmpReg, op1.reg);
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_ORC, tmpReg2, op1.reg, tmpReg);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SRAWI, finalReg, tmpReg2, 31);
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-            }
-
-            tmpReg = ALLOC_GPR();
-            emitpcode(PC_XORIS, tmpReg, op1.reg, 0x8000);
-            tmpReg2 = ALLOC_GPR();
-            emitpcode(PC_SUBF, tmpReg2, op1.reg, op2.reg);
-            tmpReg3 = ALLOC_GPR();
-            emitpcode(PC_ADDC, tmpReg3, tmpReg2, tmpReg);
-            finalReg = outputReg ? outputReg : ALLOC_GPR();
-            emitpcode(PC_SUBFE, finalReg, tmpReg3, tmpReg3);
-            output->optype = OpndType_GPR;
-            output->reg = finalReg;
-            return;
-
-        case EGREATER:
-            if (!is_unsigned(left->rtype) && IS_INT_CONST_ZERO(right)) {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_NEG, tmpReg, op1.reg);
-                tmpReg2 = ALLOC_GPR();
-                emitpcode(PC_ANDC, tmpReg2, tmpReg, op1.reg);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SRAWI, finalReg, tmpReg2, 31);
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-            }
-            opTmp = op2;
-            op2 = op1;
-            op1 = opTmp;
-
-        case ELESS:
-            if (is_unsigned(left->rtype)) {
-                tmpReg = ALLOC_GPR();
-                emitpcode(PC_SUBFC, tmpReg, op2.reg, op1.reg);
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SUBFE, finalReg, tmpReg, tmpReg);
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-            }
-
-            if (IS_INT_CONST_ZERO(right)) {
-                finalReg = outputReg ? outputReg : ALLOC_GPR();
-                emitpcode(PC_SRAWI, finalReg, op1.reg, 31);
-                output->optype = OpndType_GPR;
-                output->reg = finalReg;
-                return;
-            }
-
-            tmpReg = ALLOC_GPR();
-            emitpcode(PC_SUBFC, tmpReg, op2.reg, op1.reg);
-            tmpReg2 = ALLOC_GPR();
-            emitpcode(PC_RLWINM, tmpReg2, op2.reg, 1, 31, 31);
-            tmpReg3 = ALLOC_GPR();
-            emitpcode(PC_RLWINM, tmpReg3, op1.reg, 1, 31, 31);
-            finalReg = outputReg ? outputReg : ALLOC_GPR();
-            emitpcode(PC_SUBFE, finalReg, tmpReg3, tmpReg2);
-            output->optype = OpndType_GPR;
-            output->reg = finalReg;
-            return;
-
-        default:
-            CError_FATAL(6240);
-    }
-}
-
-void compare_floating(short nt, ENode *left, ENode *right, Operand *output) {
-    Operand opleft;
-    Operand opright;
-
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE_TO_FPR(right, &opright, right->rtype, 0);
-        GEN_NODE_TO_FPR(left, &opleft, left->rtype, 0);
-    } else {
-        GEN_NODE_TO_FPR(left, &opleft, left->rtype, 0);
-        GEN_NODE_TO_FPR(right, &opright, right->rtype, 0);
-    }
-
-    emitpcode((nt == EEQU || nt == ENOTEQU) ? PC_FCMPU : PC_FCMPO, 0, opleft.reg, opright.reg);
-    if (nt == ELESSEQU) {
-        emitpcode(PC_CROR, 0, 2, 0, 0, 0, 2);
-        nt = EEQU;
-    } else if (nt == EGREATEREQU) {
-        emitpcode(PC_CROR, 0, 2, 0, 1, 0, 2);
-        nt = EEQU;
-    }
-
-    output->optype = OpndType_CRField;
-    output->reg = 0;
-    output->regOffset = nt;
-}
-
-void compare_integer(short nt, ENode *left, ENode *right, Operand *output) {
-    Operand opleft;
-    Operand opright;
-
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        if (right->rtype->size < 4)
-            extend32(&opright, right->rtype, 0);
-        ENSURE_GPR(&opright, right->rtype, 0);
-
-        GEN_NODE(left, &opleft);
-        if (left->rtype->size < 4)
-            extend32(&opleft, left->rtype, 0);
-        ENSURE_GPR(&opleft, left->rtype, 0);
-    } else {
-        GEN_NODE(left, &opleft);
-        ENSURE_GPR(&opleft, left->rtype, 0);
-        if (left->rtype->size < 4)
-            extend32(&opleft, left->rtype, 0);
-
-        GEN_NODE(right, &opright);
-        if (right->rtype->size < 4)
-            extend32(&opright, right->rtype, 0);
-        ENSURE_GPR(&opright, right->rtype, 0);
-    }
-
-    emitpcode(is_unsigned(left->rtype) ? PC_CMPL : PC_CMP, 0, opleft.reg, opright.reg);
-
-    output->optype = OpndType_CRField;
-    output->reg = 0;
-    output->regOffset = nt;
-}
-
-void compare_immediate(short nt, ENode *left, SInt32 value, Operand *output) {
-    int postIncFlag;
-    short postIncReg;
-    Operand op;
-    SInt32 postIncValue;
-
-    memclrw(&op, sizeof(Operand));
-
-    postIncFlag = ispostincrementopportunity(left, &op, &postIncValue);
-    if (!postIncFlag) {
-        GEN_NODE(left, &op);
-        if (op.optype != OpndType_CRField) {
-            if (left->rtype->size < 4)
-                extend32(&op, left->rtype, 0);
-            else
-                ENSURE_GPR(&op, left->rtype, 0);
-        }
-    } else {
-        postIncReg = op.reg;
-        if (left->rtype->size < 4)
-            extend32(&op, left->rtype, 0);
-        ENSURE_GPR(&op, left->rtype, 0);
-    }
-
-    if (op.optype == OpndType_CRField) {
-        if (
-            (nt == EEQU && value == 1) ||
-            (nt == ENOTEQU && value == 0) ||
-            (nt == EGREATER && value == 0) ||
-            (nt == EGREATEREQU && value == 1)
-            )
-        {
-            *output = op;
-            return;
-        }
-
-        if (
-            (nt == EEQU && value == 0) ||
-            (nt == ENOTEQU && value == 1) ||
-            (nt == ELESS && value == 1) ||
-            (nt == ELESSEQU && value == 0)
-            )
-        {
-            *output = op;
-            switch (op.regOffset) {
-                case EEQU:
-                    output->regOffset = ENOTEQU;
-                    return;
-                case ENOTEQU:
-                    output->regOffset = EEQU;
-                    return;
-                case ELESS:
-                    output->regOffset = EGREATEREQU;
-                    return;
-                case EGREATER:
-                    output->regOffset = ELESSEQU;
-                    return;
-                case ELESSEQU:
-                    output->regOffset = EGREATER;
-                    return;
-                case EGREATEREQU:
-                    output->regOffset = ELESS;
-                    return;
-            }
-        }
-
-        ENSURE_GPR(&op, left->rtype, 0);
-    }
-
-    if (
-        copts.peephole &&
-        value == 0 &&
-        pclastblock->pcodeCount > 0 &&
-        pclastblock->lastPCode->op != PC_RLWINM &&
-        (PCODE_FLAG_SET_F(pclastblock->lastPCode) & (fIsMove | fSideEffects | fCanSetRecordBit | fOpTypeGPR)) == (fCanSetRecordBit | fOpTypeGPR) &&
-        pclastblock->lastPCode->args[0].data.reg.reg == op.reg &&
-        (!is_unsigned(left->rtype) || nt == EEQU || nt == ENOTEQU)
-        )
-    {
-        pcsetrecordbit(pclastblock->lastPCode);
-    } else {
-        emitpcode(is_unsigned(left->rtype) ? PC_CMPLI : PC_CMPI, 0, op.reg, value);
-    }
-
-    if (postIncFlag)
-        add_register_immediate(postIncReg, postIncReg, postIncValue);
-
-    output->optype = OpndType_CRField;
-    output->reg = 0;
-    output->regOffset = nt;
-}
-
-void compare_immediate_long(short nt, ENode *left, SInt32 value, Operand *output) {
-    int postIncFlag;
-    short postIncReg;
-    int outputReg;
-    Operand op;
-    SInt32 postIncValue;
-
-    memclrw(&op, sizeof(Operand));
-
-    postIncFlag = ispostincrementopportunity(left, &op, &postIncValue);
-    if (!postIncFlag) {
-        GEN_NODE(left, &op);
-    } else {
-        postIncReg = op.reg;
-    }
-
-    if (left->rtype->size < 4)
-        extend32(&op, left->rtype, 0);
-    ENSURE_GPR(&op, left->rtype, 0);
-
-    outputReg = ALLOC_GPR();
-    emitpcode(PC_ADDIS, outputReg, op.reg, 0, (SInt16) (~(value >> 16) + 1));
-    emitpcode(PC_CMPLI, 0, outputReg, value & 0xFFFF);
-
-    if (postIncFlag)
-        add_register_immediate(postIncReg, postIncReg, postIncValue);
-
-    output->optype = OpndType_CRField;
-    output->reg = 0;
-    output->regOffset = nt;
-}
-
-static int ismask(SInt32 value, short *first, short *last) {
-    int start, end, bit;
-    start = end = -1;
-    for (bit = 31; bit >= 0; bit--) {
-        if (value & 1) {
-            if (start != -1)
-                return 0;
-            if (end == -1)
-                end = bit;
-        } else {
-            if (end != -1 && start == -1)
-                start = bit + 1;
-        }
-        value >>= 1;
-    }
-
-    if (end == -1)
-        return 0;
-    if (start == -1)
-        start = 0;
-    *first = start;
-    *last = end;
-    return 1;
-}
-
-int ismaskconstant(SInt32 value, short *first, short *last) {
-    short my_first;
-    short my_last;
-    if (ismask(value, first, last))
-        return 1;
-
-    if (value && ismask(~value, &my_first, &my_last)) {
-        *first = my_last + 1;
-        *last = my_first - 1;
-        return 1;
-    } else {
-        return 0;
-    }
-}
-
-static void shift_and_mask(ENode *expr, short a, short b, short c, short outputReg, Operand *output) {
-    Operand op;
-    int reg;
-
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE(expr, &op);
-    ENSURE_GPR(&op, expr->rtype, 0);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    emitpcode(PC_RLWINM, reg, op.reg, a, b, c);
-
-    output->optype = OpndType_GPR;
-    output->reg = reg;
-}
-
-int ispostincrementopportunity(ENode *expr, Operand *op, SInt32 *value) {
-    Type *type;
-    int reg;
-
-    type = expr->rtype;
-    if (!ENODE_IS2(expr, EPOSTINC, EPOSTDEC))
-        return 0;
-    if (!ENODE_IS(expr->data.monadic, EINDIRECT))
-        return 0;
-    if (!ENODE_IS(expr->data.monadic->data.monadic, EOBJREF))
-        return 0;
-
-    reg = OBJECT_REG(expr->data.monadic->data.monadic->data.objref);
-    if (!reg)
-        return 0;
-
-    if (IS_TYPE_POINTER(type)) {
-        if (ENODE_IS(expr, EPOSTINC))
-            *value = TPTR_TARGET(type)->size;
-        else
-            *value = -TPTR_TARGET(type)->size;
-    } else {
-        if (ENODE_IS(expr, EPOSTINC))
-            *value = 1;
-        else
-            *value = -1;
-    }
-
-    op->optype = OpndType_GPR;
-    op->reg = reg;
-    return 1;
-}
-
-void add_register_immediate(short regA, short regB, SInt32 value) {
-    if (!FITS_IN_SHORT(value)) {
-        emitpcode(PC_ADDIS, regA, regB, 0, HIGH_PART(value));
-        if (LOW_PART(value))
-            emitpcode(PC_ADDI, regA, regA, 0, LOW_PART(value));
-    } else {
-        emitpcode(PC_ADDI, regA, regB, 0, value);
-    }
-}
-
-static int ispowerof2(SInt32 val) {
-    int bit = getbit(val);
-    return (bit > 0 && bit < 31) ? bit : 0;
-}
-
-void I8_gen_ADD(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    int is_uns;
-    ENode *left;
-    ENode *right;
-    short reg;
-    short regHi;
-    short tmpreg1;
-    short tmpreg2;
-    SInt32 skipleft;
-    SInt32 skipright;
-    Operand opleft;
-    Operand opright;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        if (TYPE_IS_8BYTES(right->rtype))
-            coerce_to_register_pair(&opright, right->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opright, right->rtype, 0);
-
-        GEN_NODE(left, &opleft);
-        if (TYPE_IS_8BYTES(left->rtype))
-            coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opleft, left->rtype, 0);
-    } else {
-        GEN_NODE(left, &opleft);
-        if (TYPE_IS_8BYTES(left->rtype))
-            coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opleft, left->rtype, 0);
-
-        GEN_NODE(right, &opright);
-        if (TYPE_IS_8BYTES(right->rtype))
-            coerce_to_register_pair(&opright, right->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opright, right->rtype, 0);
-    }
-
-    reg = ALLOC_GPR();
-    regHi = ALLOC_GPR();
-    is_uns = is_unsigned(expr->rtype) != 0;
-    skipleft = GetSizeSkip(left);
-    skipright = GetSizeSkip(right);
-
-    if (skipleft < skipright) {
-        Operand tmpop;
-        SInt32 tmp;
-
-        expr->data.diadic.left = right;
-        expr->data.diadic.right = left;
-        left = expr->data.diadic.left;
-        right = expr->data.diadic.right;
-
-        tmpop = opright;
-        opright = opleft;
-        opleft = tmpop;
-
-        tmp = skipleft;
-        skipleft = skipright;
-        skipright = tmp;
-    }
-
-    switch (skipleft + skipright) {
-        case 1 + 1:
-        case 1 + 2:
-        case 2 + 2:
-            if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo)) {
-                emitpcode(PC_ADDIC, reg, opright.reg, LOW_PART(left->data.intval.lo));
-            } else if (ENODE_IS(right, EINTCONST) && FITS_IN_SHORT2(right->data.intval.lo)) {
-                emitpcode(PC_ADDIC, reg, opleft.reg, LOW_PART(right->data.intval.lo));
-            } else {
-                emitpcode(PC_ADDC, reg, opleft.reg, opright.reg);
-            }
-            if (is_uns)
-                emitpcode(PC_LI, regHi, 0);
-            else
-                emitpcode(PC_SRAWI, regHi, reg, 31);
-            break;
-        case 1 + 4:
-        case 2 + 4:
-        case 4 + 4:
-            if (!is_uns) {
-                tmpreg1 = ALLOC_GPR();
-                tmpreg2 = ALLOC_GPR();
-                emitpcode(PC_SRAWI, tmpreg2, opleft.reg, 31);
-                emitpcode(PC_SRAWI, tmpreg1, opright.reg, 31);
-            }
-            if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo)) {
-                emitpcode(PC_ADDIC, reg, opright.reg, LOW_PART(left->data.intval.lo));
-            } else if (ENODE_IS(right, EINTCONST) && FITS_IN_SHORT2(right->data.intval.lo)) {
-                emitpcode(PC_ADDIC, reg, opleft.reg, LOW_PART(right->data.intval.lo));
-            } else {
-                emitpcode(PC_ADDC, reg, opleft.reg, opright.reg);
-            }
-            if (is_uns) {
-                tmpreg1 = ALLOC_GPR();
-                emitpcode(PC_LI, tmpreg1, 0);
-                emitpcode(PC_ADDZE, regHi, tmpreg1);
-            } else {
-                emitpcode(PC_ADDE, regHi, tmpreg1, tmpreg2);
-            }
-            break;
-        case 1 + 8:
-        case 2 + 8:
-        case 4 + 8:
-            CError_ASSERT(6933, skipleft == 8);
-            if (!is_uns) {
-                tmpreg2 = ALLOC_GPR();
-                emitpcode(PC_SRAWI, tmpreg2, opright.reg, 31);
-            }
-            if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo) && left->data.intval.hi == 0) {
-                emitpcode(PC_ADDIC, reg, opright.reg, LOW_PART(left->data.intval.lo));
-            } else if (ENODE_IS(right, EINTCONST) && FITS_IN_SHORT2(right->data.intval.lo) && right->data.intval.hi == 0) {
-                emitpcode(PC_ADDIC, reg, opleft.reg, LOW_PART(right->data.intval.lo));
-            } else {
-                emitpcode(PC_ADDC, reg, opleft.reg, opright.reg);
-            }
-            if (is_uns)
-                emitpcode(PC_ADDZE, regHi, opleft.regHi);
-            else
-                emitpcode(PC_ADDE, regHi, opleft.regHi, tmpreg2);
-            break;
-        case 8 + 8:
-            emitpcode(PC_ADDC, reg, opleft.reg, opright.reg);
-            emitpcode(PC_ADDE, regHi, opleft.regHi, opright.regHi);
-            break;
-        default:
-            CError_FATAL(6979);
-    }
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-void I8_gen_INTCONST(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    short reg;
-    short regHi;
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    regHi = outputRegHi ? outputRegHi : ALLOC_GPR();
-
-    load_immediate(reg, expr->data.intval.lo);
-    load_immediate(regHi, expr->data.intval.hi);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-void I8_gen_SUB(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    int is_uns;
-    ENode *left;
-    ENode *right;
-    short reg;
-    short regHi;
-    short tmpreg1;
-    short tmpreg2;
-    short tmpreg3;
-    SInt32 skipleft;
-    SInt32 skipright;
-    Operand opleft;
-    Operand opright;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        if (TYPE_IS_8BYTES(right->rtype))
-            coerce_to_register_pair(&opright, right->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opright, right->rtype, 0);
-
-        GEN_NODE(left, &opleft);
-        if (TYPE_IS_8BYTES(left->rtype))
-            coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opleft, left->rtype, 0);
-    } else {
-        GEN_NODE(left, &opleft);
-        if (TYPE_IS_8BYTES(left->rtype))
-            coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opleft, left->rtype, 0);
-
-        GEN_NODE(right, &opright);
-        if (TYPE_IS_8BYTES(right->rtype))
-            coerce_to_register_pair(&opright, right->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opright, right->rtype, 0);
-    }
-
-    reg = ALLOC_GPR();
-    regHi = ALLOC_GPR();
-    is_uns = is_unsigned(expr->rtype) != 0;
-    skipleft = GetSizeSkip(left);
-    skipright = GetSizeSkip(right);
-
-    switch (skipleft + skipright) {
-        case 1 + 1:
-        case 1 + 2:
-        case 2 + 2:
-            if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo)) {
-                emitpcode(PC_SUBFIC, reg, opright.reg, LOW_PART(left->data.intval.lo));
-            } else {
-                emitpcode(PC_SUBFC, reg, opright.reg, opleft.reg);
-            }
-            if (is_uns)
-                emitpcode(PC_LI, regHi, 0);
-            else
-                emitpcode(PC_SRAWI, regHi, reg, 31);
-            break;
-        case 1 + 4:
-        case 2 + 4:
-        case 4 + 4:
-            if (!is_uns) {
-                tmpreg1 = ALLOC_GPR();
-                tmpreg2 = ALLOC_GPR();
-                emitpcode(PC_SRAWI, tmpreg2, opleft.reg, 31);
-                emitpcode(PC_SRAWI, tmpreg1, opright.reg, 31);
-            }
-            if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo)) {
-                emitpcode(PC_SUBFIC, reg, opright.reg, LOW_PART(left->data.intval.lo));
-            } else {
-                emitpcode(PC_SUBFC, reg, opright.reg, opleft.reg);
-            }
-            if (is_uns) {
-                tmpreg1 = ALLOC_GPR();
-                emitpcode(PC_LI, tmpreg1, 0);
-                emitpcode(PC_SUBFZE, regHi, tmpreg1);
-            } else {
-                emitpcode(PC_SUBFE, regHi, tmpreg1, tmpreg2);
-            }
-            break;
-        case 1 + 8:
-        case 2 + 8:
-        case 4 + 8:
-            if (skipleft < skipright) {
-                emitpcode(PC_SUBFC, reg, opright.reg, opleft.reg);
-                emitpcode(PC_SUBFE, regHi, opright.regHi, opleft.regHi);
-            } else {
-                if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo) && left->data.intval.hi == 0) {
-                    emitpcode(PC_SUBFIC, reg, opright.reg, LOW_PART(left->data.intval.lo));
-                } else {
-                    emitpcode(PC_SUBFC, reg, opright.reg, opleft.reg);
-                }
-                tmpreg1 = ALLOC_GPR();
-                emitpcode(PC_LI, tmpreg1, 0);
-                emitpcode(PC_SUBFE, regHi, tmpreg1, opleft.regHi);
-            }
-            break;
-        case 8 + 8:
-            emitpcode(PC_SUBFC, reg, opright.reg, opleft.reg);
-            emitpcode(PC_SUBFE, regHi, opright.regHi, opleft.regHi);
-            break;
-        default:
-            CError_FATAL(7211);
-    }
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-void I8_gen_XOR(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    short reg;
-    short regHi;
-    Operand opleft;
-    Operand opright;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        coerce_to_register_pair(&opright, right->rtype, 0, 0);
-
-        GEN_NODE(left, &opleft);
-        coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-    } else {
-        GEN_NODE(left, &opleft);
-        coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-
-        GEN_NODE(right, &opright);
-        coerce_to_register_pair(&opright, right->rtype, 0, 0);
-    }
-
-    CError_ASSERT(7254, opleft.optype == OpndType_GPRPair && opright.optype == OpndType_GPRPair);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    regHi = outputRegHi ? outputRegHi : ALLOC_GPR();
-
-    emitpcode(PC_XOR, reg, opleft.reg, opright.reg);
-    emitpcode(PC_XOR, regHi, opleft.regHi, opright.regHi);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-void I8_gen_OR(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    short reg;
-    short regHi;
-    Operand opleft;
-    Operand opright;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        coerce_to_register_pair(&opright, right->rtype, 0, 0);
-
-        GEN_NODE(left, &opleft);
-        coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-    } else {
-        GEN_NODE(left, &opleft);
-        coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-
-        GEN_NODE(right, &opright);
-        coerce_to_register_pair(&opright, right->rtype, 0, 0);
-    }
-
-    CError_ASSERT(7304, opleft.optype == OpndType_GPRPair && opright.optype == OpndType_GPRPair);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    regHi = outputRegHi ? outputRegHi : ALLOC_GPR();
-
-    emitpcode(PC_OR, reg, opleft.reg, opright.reg);
-    emitpcode(PC_OR, regHi, opleft.regHi, opright.regHi);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-void I8_gen_AND(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *left;
-    ENode *right;
-    short reg;
-    short regHi;
-    Operand opleft;
-    Operand opright;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        coerce_to_register_pair(&opright, right->rtype, 0, 0);
-
-        GEN_NODE(left, &opleft);
-        coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-    } else {
-        GEN_NODE(left, &opleft);
-        coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-
-        GEN_NODE(right, &opright);
-        coerce_to_register_pair(&opright, right->rtype, 0, 0);
-    }
-
-    CError_ASSERT(7354, opleft.optype == OpndType_GPRPair && opright.optype == OpndType_GPRPair);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    regHi = outputRegHi ? outputRegHi : ALLOC_GPR();
-
-    emitpcode(PC_AND, reg, opleft.reg, opright.reg);
-    emitpcode(PC_AND, regHi, opleft.regHi, opright.regHi);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-int I8_getbit(UInt64 val) {
-    switch (val) {
-        case 0: return -1;
-        case 1ULL << 0: return 0;
-        case 1ULL << 1: return 1;
-        case 1ULL << 2: return 2;
-        case 1ULL << 3: return 3;
-        case 1ULL << 4: return 4;
-        case 1ULL << 5: return 5;
-        case 1ULL << 6: return 6;
-        case 1ULL << 7: return 7;
-        case 1ULL << 8: return 8;
-        case 1ULL << 9: return 9;
-        case 1ULL << 10: return 10;
-        case 1ULL << 11: return 11;
-        case 1ULL << 12: return 12;
-        case 1ULL << 13: return 13;
-        case 1ULL << 14: return 14;
-        case 1ULL << 15: return 15;
-        case 1ULL << 16: return 16;
-        case 1ULL << 17: return 17;
-        case 1ULL << 18: return 18;
-        case 1ULL << 19: return 19;
-        case 1ULL << 20: return 20;
-        case 1ULL << 21: return 21;
-        case 1ULL << 22: return 22;
-        case 1ULL << 23: return 23;
-        case 1ULL << 24: return 24;
-        case 1ULL << 25: return 25;
-        case 1ULL << 26: return 26;
-        case 1ULL << 27: return 27;
-        case 1ULL << 28: return 28;
-        case 1ULL << 29: return 29;
-        case 1ULL << 30: return 30;
-        case 1ULL << 31: return 31;
-        case 1ULL << 32: return 32;
-        case 1ULL << 33: return 33;
-        case 1ULL << 34: return 34;
-        case 1ULL << 35: return 35;
-        case 1ULL << 36: return 36;
-        case 1ULL << 37: return 37;
-        case 1ULL << 38: return 38;
-        case 1ULL << 39: return 39;
-        case 1ULL << 40: return 40;
-        case 1ULL << 41: return 41;
-        case 1ULL << 42: return 42;
-        case 1ULL << 43: return 43;
-        case 1ULL << 44: return 44;
-        case 1ULL << 45: return 45;
-        case 1ULL << 46: return 46;
-        case 1ULL << 47: return 47;
-        case 1ULL << 48: return 48;
-        case 1ULL << 49: return 49;
-        case 1ULL << 50: return 50;
-        case 1ULL << 51: return 51;
-        case 1ULL << 52: return 52;
-        case 1ULL << 53: return 53;
-        case 1ULL << 54: return 54;
-        case 1ULL << 55: return 55;
-        case 1ULL << 56: return 56;
-        case 1ULL << 57: return 57;
-        case 1ULL << 58: return 58;
-        case 1ULL << 59: return 59;
-        case 1ULL << 60: return 60;
-        case 1ULL << 61: return 61;
-        case 1ULL << 62: return 62;
-        case 1ULL << 63: return 63;
-        default: return -2;
-    }
-}
-
-int I8_log2n(UInt64 val) {
-    int bit = I8_getbit(val);
-    return (bit > 0 && bit < 63) ? bit : 0;
-}
-
-void I8_ShiftLeftImmediate(Operand opnd, SInt32 value, int is_unsigned, SInt32 size, short reg, short regHi) {
-    if (opnd.reg == reg || opnd.regHi == regHi || opnd.reg == regHi || opnd.regHi == reg)
-        CError_FATAL(7703);
-
-    if (value < 32) {
-        emitpcode(PC_RLWINM, reg, opnd.reg, value, 0, 31 - value);
-        if (size > 4) {
-            emitpcode(PC_RLWINM, regHi, opnd.regHi, value, 0, 31 - value);
-            emitpcode(PC_RLWIMI, regHi, opnd.reg, value, 32 - value, 31);
-        } else {
-            emitpcode(PC_RLWINM, regHi, opnd.reg, value, 32 - value, 31);
-        }
-    } else if (value <= 63) {
-        if (value == 32)
-            emitpcode(PC_MR, regHi, opnd.reg);
-        else
-            emitpcode(PC_RLWINM, regHi, opnd.reg, value - 32, 0, 63 - value);
-        emitpcode(PC_LI, reg, 0);
-    } else {
-        CError_FATAL(7732);
-    }
-}
-
-void I8_ShiftRightImmediate(Operand opnd, SInt32 value, int is_unsigned, short reg, short regHi, int unk) {
-    short tmpreg1;
-    short tmpreg2;
-    short tmpreg3;
-    short tmpreg4;
-
-    if (opnd.reg == reg || opnd.regHi == regHi || opnd.reg == regHi || opnd.regHi == reg)
-        CError_FATAL(7756);
-
-    if (value < 32) {
-        emitpcode(PC_RLWINM, reg, opnd.reg, 32 - value, 0, 31);
-        emitpcode(PC_RLWIMI, reg, opnd.regHi, 32 - value, 0, value - 1);
-        if (is_unsigned) {
-            emitpcode(PC_RLWINM, regHi, opnd.regHi, 32 - value, value, 31);
-        } else if (unk) {
-            tmpreg1 = ALLOC_GPR();
-            emitpcode(PC_MR, tmpreg1, opnd.regHi);
-            emitpcode(PC_RLWIMI, tmpreg1, opnd.reg, 0, 31 - (value - 1), 31);
-            emitpcode(PC_SRAWI, regHi, tmpreg1, value);
-        } else {
-            emitpcode(PC_SRAWI, regHi, opnd.regHi, value);
-        }
-    } else if (value == 32) {
-        if (is_unsigned) {
-            emitpcode(PC_MR, reg, opnd.regHi);
-            emitpcode(PC_LI, regHi, 0);
-        } else if (unk) {
-            tmpreg1 = ALLOC_GPR();
-            tmpreg2 = ALLOC_GPR();
-            tmpreg3 = ALLOC_GPR();
-            emitpcode(PC_NEG, tmpreg1, opnd.reg);
-            emitpcode(PC_OR, tmpreg2, tmpreg1, opnd.reg);
-            emitpcode(PC_RLWINM, tmpreg3, tmpreg2, 1, 31, 31);
-            emitpcode(PC_RLWIMI, tmpreg3, opnd.regHi, 0, 0, 0);
-            emitpcode(PC_MR, reg, opnd.regHi);
-            emitpcode(PC_SRAWI, regHi, value, 31);
-        } else {
-            emitpcode(PC_MR, reg, opnd.regHi);
-            emitpcode(PC_SRAWI, regHi, opnd.regHi, 31);
-        }
-    } else if (value <= 63) {
-        if (is_unsigned) {
-            emitpcode(PC_RLWINM, reg, opnd.regHi, 64 - value, value - 32, 31);
-            emitpcode(PC_LI, regHi, 0);
-        } else if (unk) {
-            tmpreg1 = ALLOC_GPR();
-            tmpreg2 = ALLOC_GPR();
-            tmpreg3 = ALLOC_GPR();
-            tmpreg4 = ALLOC_GPR();
-            emitpcode(PC_NEG, tmpreg1, opnd.reg);
-            emitpcode(PC_OR, tmpreg2, tmpreg1, opnd.reg);
-            emitpcode(PC_RLWINM, tmpreg3, tmpreg2, 1, 31, 31);
-            emitpcode(PC_OR, tmpreg4, opnd.regHi, tmpreg3);
-            emitpcode(PC_SRAWI, regHi, opnd.regHi, 31);
-            emitpcode(PC_SRAWI, reg, tmpreg4, value - 32);
-        } else {
-            emitpcode(PC_SRAWI, reg, opnd.regHi, value - 32);
-            emitpcode(PC_SRAWI, regHi, opnd.regHi, 31);
-        }
-    } else {
-        CError_FATAL(7866);
-    }
-}
-
-void I8_gen_MUL(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    int is_uns;
-    ENode *left;
-    ENode *right;
-    short reg;
-    short regHi;
-    short tmpreg1;
-    short tmpreg2;
-    short tmpreg3;
-    short tmpreg4;
-    SInt32 skipleft;
-    SInt32 skipright;
-    Operand opleft;
-    Operand opright;
-    SInt64 leftval;
-    SInt64 rightval;
-    int shift;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-    skipleft = GetSizeSkip(left);
-    skipright = GetSizeSkip(right);
-
-    if (ENODE_IS(right, EINTCONST) && ENODE_IS(left, EINTCONST))
-        CError_FATAL(7900);
-
-    if (ENODE_IS(left, EINTCONST))
-        leftval = left->data.intval.lo + (((SInt64) ((skipleft < 8) ? 0 : left->data.intval.hi)) << 32);
-    if (ENODE_IS(right, EINTCONST))
-        rightval = right->data.intval.lo + (((SInt64) ((skipright < 8) ? 0 : right->data.intval.hi)) << 32);
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        if (TYPE_IS_8BYTES(right->rtype))
-            coerce_to_register_pair(&opright, right->rtype, 0, 0);
-        else
-            ENSURE_GPR(&opright, right->rtype, 0);
-
-        if (!(ENODE_IS(left, EINTCONST) && I8_log2n(leftval) > 0)) {
-            GEN_NODE(left, &opleft);
-            if (TYPE_IS_8BYTES(left->rtype))
-                coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-            else
-                ENSURE_GPR(&opleft, left->rtype, 0);
-        }
-    } else {
-        if (!(ENODE_IS(left, EINTCONST) && I8_log2n(leftval) > 0)) {
-            GEN_NODE(left, &opleft);
-            if (TYPE_IS_8BYTES(left->rtype))
-                coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-            else
-                ENSURE_GPR(&opleft, left->rtype, 0);
-        }
-
-        if (!(ENODE_IS(right, EINTCONST) && I8_log2n(rightval) > 0)) {
-            GEN_NODE(right, &opright);
-            if (TYPE_IS_8BYTES(right->rtype))
-                coerce_to_register_pair(&opright, right->rtype, 0, 0);
-            else
-                ENSURE_GPR(&opright, right->rtype, 0);
-        }
-    }
-
-    is_uns = is_unsigned(expr->rtype) != 0;
-
-    if (skipleft < skipright) {
-        Operand tmpop;
-        SInt64 tmp64;
-        SInt32 tmp;
-
-        expr->data.diadic.left = right;
-        expr->data.diadic.right = left;
-        left = expr->data.diadic.left;
-        right = expr->data.diadic.right;
-
-        tmpop = opright;
-        opright = opleft;
-        opleft = tmpop;
-
-        tmp64 = leftval;
-        leftval = rightval;
-        rightval = tmp64;
-
-        tmp = skipleft;
-        skipleft = skipright;
-        skipright = tmp;
-    }
-
-    reg = ALLOC_GPR();
-    regHi = ALLOC_GPR();
-
-    if (ENODE_IS(left, EINTCONST) && (shift = I8_log2n(leftval)) > 0) {
-        I8_ShiftLeftImmediate(opright, shift, is_uns, skipright, reg, regHi);
-    } else if (ENODE_IS(right, EINTCONST) && (shift = I8_log2n(rightval)) > 0) {
-        I8_ShiftLeftImmediate(opleft, shift, is_uns, skipleft, reg, regHi);
-    } else {
-        switch (skipleft + skipright) {
-            case 1 + 1:
-            case 1 + 2:
-            case 2 + 2:
-                if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo)) {
-                    emitpcode(PC_MULLI, reg, opright.reg, LOW_PART(left->data.intval.lo));
-                } else if (ENODE_IS(right, EINTCONST) && FITS_IN_SHORT2(right->data.intval.lo)) {
-                    emitpcode(PC_MULLI, reg, opleft.reg, LOW_PART(right->data.intval.lo));
-                } else {
-                    emitpcode(PC_MULLW, reg, opleft.reg, opright.reg);
-                }
-                if (is_uns)
-                    emitpcode(PC_LI, regHi, 0);
-                else
-                    emitpcode(PC_SRAWI, regHi, reg, 31);
-                break;
-            case 1 + 4:
-            case 2 + 4:
-            case 4 + 4:
-                if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo)) {
-                    emitpcode(PC_MULLI, reg, opright.reg, LOW_PART(left->data.intval.lo));
-                } else if (ENODE_IS(right, EINTCONST) && FITS_IN_SHORT2(right->data.intval.lo)) {
-                    emitpcode(PC_MULLI, reg, opleft.reg, LOW_PART(right->data.intval.lo));
-                } else {
-                    emitpcode(PC_MULLW, reg, opleft.reg, opright.reg);
-                }
-                if (is_uns)
-                    emitpcode(PC_MULHWU, regHi, opleft.reg, opright.reg);
-                else
-                    emitpcode(PC_MULHW, regHi, opleft.reg, opright.reg);
-                break;
-            case 1 + 8:
-            case 2 + 8:
-            case 4 + 8:
-                CError_ASSERT(8097, skipleft == 8);
-                if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo) && left->data.intval.hi == 0) {
-                    emitpcode(PC_MULLI, reg, opright.reg, LOW_PART(left->data.intval.lo));
-                    if (is_uns)
-                        emitpcode(PC_MULHWU, regHi, opright.reg, opleft.reg);
-                    else
-                        emitpcode(PC_MULHW, regHi, opright.reg, opleft.reg);
-                } else if (ENODE_IS(right, EINTCONST) && FITS_IN_SHORT2(right->data.intval.lo) && right->data.intval.hi == 0) {
-                    tmpreg1 = ALLOC_GPR();
-                    tmpreg2 = ALLOC_GPR();
-                    if (is_uns) {
-                        emitpcode(PC_MULHWU, tmpreg2, opleft.reg, opright.reg);
-                        emitpcode(PC_MULLI, tmpreg1, opleft.regHi, LOW_PART(right->data.intval.lo));
-                        emitpcode(PC_MULLI, reg, opleft.reg, LOW_PART(right->data.intval.lo));
-                        emitpcode(PC_ADD, regHi, tmpreg2, tmpreg1);
-                    } else {
-                        tmpreg3 = ALLOC_GPR();
-                        tmpreg4 = ALLOC_GPR();
-                        emitpcode(PC_SRAWI, tmpreg4, opright.reg, 31);
-                        emitpcode(PC_MULHWU, tmpreg2, opleft.reg, opright.reg);
-                        emitpcode(PC_MULLI, tmpreg1, opleft.regHi, LOW_PART(right->data.intval.lo));
-                        emitpcode(PC_MULLI, reg, opleft.reg, LOW_PART(right->data.intval.lo));
-                        emitpcode(PC_MULLW, tmpreg3, opleft.reg, tmpreg4);
-                        emitpcode(PC_ADD, regHi, tmpreg2, tmpreg1);
-                        emitpcode(PC_ADD, regHi, regHi, tmpreg3);
-                    }
-                } else {
-                    tmpreg1 = ALLOC_GPR();
-                    tmpreg2 = ALLOC_GPR();
-                    if (is_uns) {
-                        emitpcode(PC_MULHWU, tmpreg2, opleft.reg, opright.reg);
-                        emitpcode(PC_MULLW, tmpreg1, opleft.regHi, opright.reg);
-                        emitpcode(PC_MULLW, reg, opleft.reg, opright.reg);
-                        emitpcode(PC_ADD, regHi, tmpreg2, tmpreg1);
-                    } else {
-                        tmpreg3 = ALLOC_GPR();
-                        tmpreg4 = ALLOC_GPR();
-                        emitpcode(PC_SRAWI, tmpreg4, opright.reg, 31);
-                        emitpcode(PC_MULHWU, tmpreg2, opleft.reg, opright.reg);
-                        emitpcode(PC_MULLW, tmpreg1, opleft.regHi, opright.reg);
-                        emitpcode(PC_MULLW, reg, opleft.reg, opright.reg);
-                        emitpcode(PC_MULLW, tmpreg3, opleft.reg, tmpreg4);
-                        emitpcode(PC_ADD, regHi, tmpreg2, tmpreg1);
-                        emitpcode(PC_ADD, regHi, regHi, tmpreg3);
-                    }
-                }
-                break;
-            case 8 + 8:
-                if (ENODE_IS(left, EINTCONST) && FITS_IN_SHORT2(left->data.intval.lo) && left->data.intval.hi == 0) {
-                    tmpreg1 = ALLOC_GPR();
-                    tmpreg2 = ALLOC_GPR();
-                    emitpcode(PC_MULHWU, tmpreg1, opright.reg, opleft.reg);
-                    emitpcode(PC_MULLW, tmpreg2, opright.reg, opleft.regHi);
-                    emitpcode(PC_MULLI, reg, opright.reg, LOW_PART(left->data.intval.lo));
-                    emitpcode(PC_ADD, regHi, tmpreg1, tmpreg2);
-                } else if (ENODE_IS(right, EINTCONST) && FITS_IN_SHORT2(right->data.intval.lo) && right->data.intval.hi == 0) {
-                    tmpreg1 = ALLOC_GPR();
-                    tmpreg2 = ALLOC_GPR();
-                    emitpcode(PC_MULHWU, tmpreg2, opleft.reg, opright.reg);
-                    emitpcode(PC_MULLW, tmpreg1, opleft.regHi, opright.reg);
-                    emitpcode(PC_MULLI, reg, opleft.reg, LOW_PART(right->data.intval.lo));
-                    emitpcode(PC_ADD, regHi, tmpreg2, tmpreg1);
-                } else {
-                    tmpreg1 = ALLOC_GPR();
-                    tmpreg2 = ALLOC_GPR();
-                    tmpreg3 = ALLOC_GPR();
-                    tmpreg4 = ALLOC_GPR();
-                    emitpcode(PC_MULHWU, tmpreg2, opleft.reg, opright.reg);
-                    emitpcode(PC_MULLW, tmpreg1, opleft.regHi, opright.reg);
-                    emitpcode(PC_ADD, tmpreg3, tmpreg2, tmpreg1);
-                    emitpcode(PC_MULLW, tmpreg4, opleft.reg, opright.regHi);
-                    emitpcode(PC_MULLW, reg, opleft.reg, opright.reg);
-                    emitpcode(PC_ADD, regHi, tmpreg3, tmpreg4);
-                }
-                break;
-            default:
-                CError_FATAL(8218);
-        }
-    }
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-void I8_gen_BINNOT(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-    Operand op;
-    int reg;
-    int regHi;
-
-    inner = expr->data.monadic;
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE(inner, &op);
-    coerce_to_register_pair(&op, inner->rtype, 0, 0);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    regHi = outputRegHi ? outputRegHi : ALLOC_GPR();
-    emitpcode(PC_NOR, reg, op.reg, op.reg);
-    emitpcode(PC_NOR, regHi, op.regHi, op.regHi);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-void I8_gen_MONMIN(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-    Operand op;
-    int reg;
-    int regHi;
-
-    inner = expr->data.monadic;
-    memclrw(&op, sizeof(Operand));
-    GEN_NODE(inner, &op);
-    coerce_to_register_pair(&op, inner->rtype, 0, 0);
-
-    reg = outputReg ? outputReg : ALLOC_GPR();
-    regHi = outputRegHi ? outputRegHi : ALLOC_GPR();
-    emitpcode(PC_SUBFIC, reg, op.reg, 0);
-    emitpcode(PC_SUBFZE, regHi, op.regHi);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = reg;
-    output->regHi = regHi;
-}
-
-void I8_gen_ASS(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *type;
-    ENode *left;
-    ENode *right;
-    Operand opleft;
-    Operand opright;
-    VarInfo *vi;
-
-    type = expr->rtype;
-    if (ENODE_IS(expr, ECONDASS)) {
-        left = expr->data.cond.expr1;
-        if (ENODE_IS(left, EINDIRECT))
-            left = left->data.monadic;
-        else
-            CError_FATAL(8328);
-        right = expr->data.cond.expr2;
-    } else {
-        left = expr->data.diadic.left;
-        right = expr->data.diadic.right;
-    }
-
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    if (ENODE_IS(left, EOBJREF) && OBJECT_REG(left->data.objref)) {
-        vi = Registers_GetVarInfo(left->data.objref);
-        GEN_NODE_TO_REG(right, vi->reg, vi->regHi, &opright);
-        if (vi->rclass != RegClass_GPR) {
-            CError_FATAL(8348);
-        } else {
-            coerce_to_register_pair(&opright, type, vi->reg, vi->regHi);
-            *output = opright;
-        }
-        return;
-    }
-
-    if (TYPE_FITS_IN_REGISTER(type)) {
-        GEN_NODE(right, &opright);
-        coerce_to_register_pair(&opright, right->rtype, 0, 0);
-
-        if (ENODE_IS(left, EBITFIELD)) {
-            CError_FATAL(8376);
-        } else {
-            GEN_NODE(left, &opleft);
-            indirect(&opleft, left);
-            store_pair(opright.reg, opright.regHi, &opleft, type);
-        }
-
-        output->optype = OpndType_GPRPair;
-        output->reg = opright.reg;
-        output->regHi = opright.regHi;
-    }
-}
-
-void I8_gen_POSTINCDEC(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-    Type *type;
-    int flag;
-    int reg;
-    int regHi;
-    Operand op1;
-    Operand op2;
-    Operand op3;
-
-    inner = expr->data.monadic->data.monadic;
-    type = expr->rtype;
-    flag = 0;
-    memclrw(&op1, sizeof(Operand));
-    memclrw(&op2, sizeof(Operand));
-
-    if (ENODE_IS(inner, EOBJREF) && (reg = OBJECT_REG(inner->data.objref))) {
-        regHi = Registers_GetVarInfo(inner->data.objref)->regHi;
-        output->optype = OpndType_GPRPair;
-        output->reg = (outputReg && outputReg != reg && outputReg != regHi) ? outputReg : ALLOC_GPR();
-        output->regHi = (outputRegHi && outputRegHi != regHi && outputRegHi != reg) ? outputRegHi : ALLOC_GPR();
-        emitpcode(PC_MR, output->reg, reg);
-        emitpcode(PC_MR, output->regHi, regHi);
-        if (ENODE_IS(expr, EPOSTINC)) {
-            emitpcode(PC_ADDIC, reg, reg, 1);
-            emitpcode(PC_ADDME, regHi, regHi);
-        } else {
-            emitpcode(PC_ADDIC, reg, reg, -1);
-            emitpcode(PC_ADDZE, regHi, regHi);
-        }
-        return;
-    }
-
-    CError_ASSERT(8446, !ENODE_IS(inner, EBITFIELD));
-
-    GEN_NODE(inner, &op1);
-    indirect(&op1, inner);
-    op2 = op1;
-    coerce_to_register_pair(&op2, type, 0, 0);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = ALLOC_GPR();
-    output->regHi = ALLOC_GPR();
-
-    emitpcode(PC_MR, output->reg, op2.reg);
-    emitpcode(PC_MR, output->regHi, op2.regHi);
-
-    reg = ALLOC_GPR();
-    regHi = ALLOC_GPR();
-
-    if (ENODE_IS(expr, EPOSTINC)) {
-        emitpcode(PC_ADDIC, reg, op2.reg, 1);
-        emitpcode(PC_ADDZE, regHi, op2.regHi);
-    } else {
-        emitpcode(PC_ADDIC, reg, op2.reg, -1);
-        emitpcode(PC_ADDME, regHi, op2.regHi);
-    }
-    store_pair(reg, regHi, &op1, type);
-}
-
-void I8_gen_INDIRECT(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    ENode *inner;
-    VarInfo *vi;
-
-    inner = expr->data.monadic;
-    if (ENODE_IS(inner, EOBJREF) && OBJECT_REG(inner->data.objref)) {
-        vi = Registers_GetVarInfo(inner->data.objref);
-        switch (vi->rclass) {
-            case RegClass_GPR:
-                output->optype = OpndType_GPRPair;
-                break;
-            case RegClass_FPR:
-                output->optype = OpndType_FPR;
-                break;
-            default:
-                CError_FATAL(8511);
-        }
-
-        output->reg = vi->reg;
-        output->regHi = vi->regHi;
-        output->object = NULL;
-        return;
-    }
-
-    if (ENODE_IS(inner, EBITFIELD)) {
-        CError_FATAL(8529);
-        return;
-    }
-
-    GEN_NODE(inner, output);
-    indirect(output, inner);
-}
-
-void I8_gen_condition(ENode *cond, Operand *output, int write_to_gpr) {
-    ENode *left;
-    ENode *right;
-    Operand opleft;
-    Operand opright;
-    Operand tmpop;
-    int reg1;
-    int reg2;
-    int reg3;
-    int reg4;
-    int reg5;
-
-    left = cond->data.diadic.left;
-    right = cond->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-    memclrw(&tmpop, sizeof(Operand));
-
-    if (right->hascall) {
-        GEN_NODE(right, &opright);
-        if (right->rtype->size < 4)
-            extend32(&opright, right->rtype, 0);
-        ENSURE_GPR(&opright, right->rtype, 0);
-
-        if (right->rtype->size < 8) {
-            short tmp = ALLOC_GPR();
-            if (is_unsigned(right->rtype))
-                load_immediate(tmp, 0);
-            else
-                emitpcode(PC_SRAWI, tmp, opright.reg, 31);
-            opright.optype = OpndType_GPRPair;
-            opright.regHi = tmp;
-        }
-
-        GEN_NODE(left, &opleft);
-        if (left->rtype->size < 4)
-            extend32(&opleft, left->rtype, 0);
-        ENSURE_GPR(&opleft, left->rtype, 0);
-
-        if (left->rtype->size < 8) {
-            short tmp = ALLOC_GPR();
-            // this looks like a bug??? surely this should check left->rtype
-            if (is_unsigned(right->rtype))
-                load_immediate(tmp, 0);
-            else
-                emitpcode(PC_SRAWI, tmp, opleft.reg, 31);
-            opleft.optype = OpndType_GPRPair;
-            opleft.regHi = tmp;
-        }
-    } else {
-        GEN_NODE(left, &opleft);
-        ENSURE_GPR(&opleft, left->rtype, 0);
-        if (left->rtype->size < 4)
-            extend32(&opleft, left->rtype, 0);
-
-        if (left->rtype->size < 8) {
-            short tmp = ALLOC_GPR();
-            if (is_unsigned(right->rtype))
-                load_immediate(tmp, 0);
-            else
-                emitpcode(PC_SRAWI, tmp, opleft.reg, 31);
-            opleft.optype = OpndType_GPRPair;
-            opleft.regHi = tmp;
-        }
-
-        GEN_NODE(right, &opright);
-        if (right->rtype->size < 4)
-            extend32(&opright, right->rtype, 0);
-        ENSURE_GPR(&opright, right->rtype, 0);
-
-        if (right->rtype->size < 8) {
-            short tmp = ALLOC_GPR();
-            if (is_unsigned(right->rtype))
-                load_immediate(tmp, 0);
-            else
-                emitpcode(PC_SRAWI, tmp, opright.reg, 31);
-            opright.optype = OpndType_GPRPair;
-            opright.regHi = tmp;
-        }
-    }
-
-    CError_ASSERT(8704, opleft.optype == OpndType_GPRPair && opright.optype == OpndType_GPRPair);
-
-    switch (cond->type) {
-        case EEQU:
-        case ENOTEQU:
-            reg1 = ALLOC_GPR();
-            reg2 = ALLOC_GPR();
-            emitpcode(PC_XOR, reg1, opleft.reg, opright.reg);
-            emitpcode(PC_XOR, reg2, opleft.regHi, opright.regHi);
-            emitpcode(PC_OR, reg2, reg1, reg2);
-            if (write_to_gpr) {
-                if (ENODE_IS(cond, EEQU)) {
-                    emitpcode(PC_CNTLZW, reg2, reg2);
-                    emitpcode(PC_RLWINM, reg2, reg2, 27, 5, 31);
-                } else {
-                    emitpcode(PC_ADDIC, reg1, reg2, -1);
-                    emitpcode(PC_SUBFE, reg2, reg1, reg2);
-                }
-                output->optype = OpndType_GPR;
-                output->reg = reg2;
-                output->regHi = 0;
-            } else {
-                emitpcode(PC_CMPI, 0, reg2, 0);
-                output->optype = OpndType_CRField;
-                output->reg = 0;
-                output->regOffset = cond->type;
-            }
-            break;
-        case EGREATER:
-            tmpop = opleft;
-            opleft = opright;
-            opright = tmpop;
-        case ELESS:
-            reg1 = ALLOC_GPR();
-            reg2 = ALLOC_GPR();
-            reg3 = ALLOC_GPR();
-            if (left->rtype != TYPE(&stunsignedlonglong) && right->rtype != TYPE(&stunsignedlonglong)) {
-                emitpcode(PC_XORIS, reg1, opleft.regHi, 0x8000);
-                emitpcode(PC_XORIS, reg2, opright.regHi, 0x8000);
-                reg4 = reg1;
-                reg5 = reg2;
-            } else {
-                reg4 = opleft.regHi;
-                reg5 = opright.regHi;
-            }
-            emitpcode(PC_SUBFC, reg3, opright.reg, opleft.reg);
-            emitpcode(PC_SUBFE, reg2, reg5, reg4);
-            emitpcode(PC_SUBFE, reg2, reg1, reg1);
-            emitpcode(PC_NEG, reg2, reg2);
-            if (write_to_gpr) {
-                output->optype = OpndType_GPR;
-                output->reg = reg2;
-                output->regHi = 0;
-            } else {
-                emitpcode(PC_CMPI, 0, reg2, 0);
-                output->optype = OpndType_CRField;
-                output->reg = 0;
-                output->regOffset = ENOTEQU;
-            }
-            break;
-        case ELESSEQU:
-            tmpop = opleft;
-            opleft = opright;
-            opright = tmpop;
-        case EGREATEREQU:
-            reg1 = ALLOC_GPR();
-            reg2 = ALLOC_GPR();
-            reg3 = ALLOC_GPR();
-            if (left->rtype != TYPE(&stunsignedlonglong) && right->rtype != TYPE(&stunsignedlonglong)) {
-                emitpcode(PC_XORIS, reg1, opleft.regHi, 0x8000);
-                emitpcode(PC_XORIS, reg2, opright.regHi, 0x8000);
-                reg4 = reg1;
-                reg5 = reg2;
-            } else {
-                reg4 = opleft.regHi;
-                reg5 = opright.regHi;
-            }
-            emitpcode(PC_SUBFC, reg3, opright.reg, opleft.reg);
-            emitpcode(PC_SUBFE, reg2, reg5, reg4);
-            emitpcode(PC_SUBFE, reg2, reg1, reg1);
-            emitpcode(PC_NEG, reg2, reg2);
-            if (write_to_gpr) {
-                emitpcode(PC_SUBFIC, reg2, reg2, 1);
-                output->optype = OpndType_GPR;
-                output->reg = reg2;
-                output->regHi = 0;
-            } else {
-                emitpcode(PC_CMPI, 0, reg2, 0);
-                output->optype = OpndType_CRField;
-                output->reg = 0;
-                output->regOffset = EEQU;
-            }
-            break;
-        default:
-            CError_FATAL(8814);
-    }
-}
-
-void I8_gen_SHL_SHR(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    static UInt32 used_regs[RegClassMax] = {0, 0, 0, 0, (1 << 3) | (1 << 4) | (1 << 5)};
-
-    ENode *left;
-    ENode *right;
-    Operand opleft;
-    Operand opright;
-    int is_uns;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    GEN_NODE(left, &opleft);
-    coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = ALLOC_GPR();
-    output->regHi = ALLOC_GPR();
-
-    is_uns = is_unsigned(expr->rtype) != 0;
-
-    if (ENODE_IS(right, EINTCONST)) {
-        if (ENODE_IS(expr, ESHL)) {
-            I8_ShiftLeftImmediate(opleft, right->data.intval.lo, is_uns, expr->rtype->size, output->reg, output->regHi);
-        } else {
-            I8_ShiftRightImmediate(opleft, right->data.intval.lo, is_uns, output->reg, output->regHi, 0);
-        }
-        return;
-    }
-
-    GEN_NODE(right, &opright);
-    ENSURE_GPR(&opright, right->rtype, 0);
-    if (opright.optype == OpndType_GPRPair) {
-        opright.regHi = 0;
-        opright.optype = OpndType_GPR;
-    }
-
-    CError_ASSERT(8890, opleft.optype == OpndType_GPRPair && opright.optype == OpndType_GPR);
-
-    if (opleft.regHi != high_reg)
-        emitpcode(PC_MR, high_reg, opleft.regHi);
-    if (opleft.reg != low_reg)
-        emitpcode(PC_MR, low_reg, opleft.reg);
-    if (opright.reg != 5)
-        emitpcode(PC_MR, 5, opright.reg);
-
-    if (ENODE_IS(expr, ESHR)) {
-        if (is_unsigned(left->rtype))
-            branch_subroutine(rt_shr2u, 0, used_regs);
-        else
-            branch_subroutine(rt_shr2i, 0, used_regs);
-    } else if (ENODE_IS(expr, ESHL)) {
-        branch_subroutine(rt_shl2i, 0, used_regs);
-    } else {
-        CError_FATAL(8909);
-    }
-
-    emitpcode(PC_MR, output->reg, low_reg);
-    emitpcode(PC_MR, output->regHi, high_reg);
-}
-
-void I8_gen_DIV_MOD(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    static UInt32 used_regs[RegClassMax] = {0, 0, 0, 0, (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6)};
-
-    int is_uns;
-    ENode *left;
-    ENode *right;
-    Operand opleft;
-    Operand opright;
-    SInt64 constval;
-    int shift;
-
-    left = expr->data.diadic.left;
-    right = expr->data.diadic.right;
-    memclrw(&opleft, sizeof(Operand));
-    memclrw(&opright, sizeof(Operand));
-
-    GEN_NODE(left, &opleft);
-    coerce_to_register_pair(&opleft, left->rtype, 0, 0);
-
-    output->optype = OpndType_GPRPair;
-    output->reg = ALLOC_GPR();
-    output->regHi = ALLOC_GPR();
-
-    is_uns = is_unsigned(expr->rtype) != 0;
-
-    if (ENODE_IS(right, EINTCONST))
-        constval = (((SInt64) right->data.intval.hi) << 32) + right->data.intval.lo;
-    if (ENODE_IS(right, EINTCONST) && ((shift = I8_log2n(constval)) > 0)) {
-        CError_ASSERT(8976, opleft.optype == OpndType_GPRPair);
-        if (ENODE_IS(expr, EDIV)) {
-            I8_ShiftRightImmediate(opleft, shift, is_uns, output->reg, output->regHi, 1);
-            if (!is_uns) {
-                emitpcode(PC_ADDZE, output->reg, output->reg);
-                emitpcode(PC_ADDZE, output->regHi, output->regHi);
-            }
-        } else {
-            if (is_uns) {
-                if (shift < 32) {
-                    emitpcode(PC_LI, output->regHi, 0);
-                    emitpcode(PC_RLWINM, output->reg, opleft.reg, 0, 32 - shift, 31);
-                } else if (shift == 32) {
-                    emitpcode(PC_LI, output->regHi, 0);
-                    emitpcode(PC_MR, output->reg, opleft.reg);
-                } else if (shift <= 63) {
-                    emitpcode(PC_RLWINM, output->regHi, opleft.regHi, 0, 32 - (shift - 32), 31);
-                    emitpcode(PC_MR, output->reg, opleft.reg);
-                } else {
-                    CError_FATAL(9018);
-                }
-            } else {
-                short tmpreg1 = ALLOC_GPR();
-                short tmpreg2 = ALLOC_GPR();
-                I8_ShiftRightImmediate(opleft, shift, is_uns, output->reg, output->regHi, 1);
-                emitpcode(PC_ADDZE, output->reg, output->reg);
-                emitpcode(PC_ADDZE, output->regHi, output->regHi);
-                I8_ShiftLeftImmediate(*output, shift, is_uns, expr->rtype->size, tmpreg1, tmpreg2);
-                emitpcode(PC_SUBFC, output->reg, tmpreg1, opleft.reg);
-                emitpcode(PC_SUBFE, output->regHi, tmpreg2, opleft.regHi);
-            }
-        }
-        return;
-    }
-
-    GEN_NODE(right, &opright);
-    coerce_to_register_pair(&opright, right->rtype, 0, 0);
-
-    CError_ASSERT(9048, opleft.optype == OpndType_GPRPair && opright.optype == OpndType_GPRPair);
-
-    if (opleft.regHi != high_reg)
-        emitpcode(PC_MR, high_reg, opleft.regHi);
-    if (opleft.reg != low_reg)
-        emitpcode(PC_MR, low_reg, opleft.reg);
-    if (opright.regHi != high_reg2)
-        emitpcode(PC_MR, high_reg2, opright.regHi);
-    if (opright.reg != low_reg2)
-        emitpcode(PC_MR, low_reg2, opright.reg);
-
-    if (ENODE_IS(expr, EDIV)) {
-        if (is_unsigned(left->rtype) || is_unsigned(right->rtype))
-            branch_subroutine(rt_div2u, 0, used_regs);
-        else
-            branch_subroutine(rt_div2i, 0, used_regs);
-    } else if (ENODE_IS(expr, EMODULO)) {
-        if (is_unsigned(left->rtype) || is_unsigned(right->rtype))
-            branch_subroutine(rt_mod2u, 0, used_regs);
-        else
-            branch_subroutine(rt_mod2i, 0, used_regs);
-    } else {
-        CError_FATAL(9074);
-    }
-
-    emitpcode(PC_MR, output->reg, low_reg);
-    emitpcode(PC_MR, output->regHi, high_reg);
-}
-
-void I8_gen_TYPCON(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    Type *dsttype;
-    ENode *inner;
-    Type *srctype;
-    short regHi;
-    short reg;
-
-    static UInt32 used_regs[RegClassMax] = {0, 0, 0, 0, (1 << 3) | (1 << 4)};
-    static UInt32 used_regs_f1[RegClassMax] = {0, 0, 0, (1 << 1), 0};
-
-    inner = expr->data.monadic;
-    srctype = inner->rtype;
-    dsttype = expr->rtype;
-
-    if (IS_TYPE_VOID(dsttype)) {
-        GEN_NODE(inner, output);
-        if (ENODE_IS(inner, EINDIRECT) && (output->flags & OpndFlags_Volatile))
-            coerce_to_register_pair(output, inner->rtype, 0, 0);
-        output->optype = OpndType_Absolute;
-        output->immediate = 0;
-        return;
-    }
-
-    if (IS_TYPE_INT_OR_ENUM(srctype)) {
-        if (IS_TYPE_FLOAT(dsttype)) {
-            GEN_NODE(inner, output);
-            coerce_to_register_pair(output, srctype, 0, 0);
-            if (output->regHi != high_reg)
-                emitpcode(PC_MR, high_reg, output->regHi);
-            if (output->reg != low_reg)
-                emitpcode(PC_MR, low_reg, output->reg);
-
-            if (is_unsigned(srctype)) {
-                branch_subroutine(
-                        (dsttype->size == 4) ? rt_cvt_ull_flt : rt_cvt_ull_dbl,
-                        0,
-                        used_regs);
-            } else {
-                branch_subroutine(
-                        (dsttype->size == 4) ? rt_cvt_sll_flt : rt_cvt_sll_dbl,
-                        0,
-                        used_regs);
-            }
-
-            output->optype = OpndType_FPR;
-            output->reg = ALLOC_FPR();
-            emitpcode(PC_FMR, output->reg, 1);
-            return;
-        }
-
-        if (srctype->size < dsttype->size) {
-            CError_ASSERT(9171, TYPE_IS_8BYTES(dsttype));
-
-            GEN_NODE(inner, output);
-            if (srctype->size < 4 &&
-                    !ENODE_IS_INDIRECT_TO(inner, EBITFIELD) &&
-                    !((ENODE_IS_ASSIGN(inner) || ENODE_IS_RANGE(inner, EPOSTINC, EPREDEC)) && ENODE_IS(inner->data.monadic->data.monadic, EBITFIELD))
-                    ) {
-                extend32(output, srctype, outputReg);
-            }
-            extend64(output, srctype, outputReg, outputRegHi);
-        } else {
-            GEN_NODE_TO_REG(inner, outputReg, 0, output);
-            if (dsttype->size < srctype->size) {
-                coerce_to_register_pair(output, srctype, outputReg, outputRegHi);
-                output->optype = OpndType_GPR;
-                output->regHi = 0;
-            }
-        }
-        return;
-    }
-
-    if (IS_TYPE_POINTER(srctype)) {
-        GEN_NODE_TO_REG(inner, outputReg, 0, output);
-        CError_ASSERT(9200, TYPE_IS_8BYTES(expr->rtype));
-        GEN_NODE_TO_REG(inner, outputReg, 0, output);
-
-        regHi = outputRegHi ? outputRegHi : ALLOC_GPR();
-        if (regHi == output->reg) {
-            reg = outputReg ? outputReg : ALLOC_GPR();
-            emitpcode(PC_MR, reg, output->reg);
-            output->reg = reg;
-        }
-        if (is_unsigned(inner->rtype))
-            load_immediate(regHi, 0);
-        else
-            emitpcode(PC_SRAWI, regHi, output->reg, 31);
-        output->optype = OpndType_GPRPair;
-        output->regHi = regHi;
-        return;
-    }
-
-    if (IS_TYPE_FLOAT(srctype)) {
-        if (IS_TYPE_FLOAT(dsttype)) {
-            CError_FATAL(9222);
-            return;
-        }
-
-        GEN_NODE(inner, output);
-        ENSURE_FPR(output, srctype, 0);
-        if (output->reg != 1)
-            emitpcode(PC_FMR, 1, output->reg);
-
-        branch_subroutine(rt_cvt_dbl_usll, 0, used_regs_f1);
-
-        output->optype = OpndType_GPRPair;
-        output->reg = ALLOC_GPR();
-        output->regHi = ALLOC_GPR();
-        emitpcode(PC_MR, output->reg, low_reg);
-        emitpcode(PC_MR, output->regHi, high_reg);
-        return;
-    }
-
-    if (IS_TYPE_STRUCT(srctype)) {
-        GEN_NODE_TO_REG(inner, outputReg, 0, output);
-
-        if (TYPE_IS_8BYTES(expr->rtype) && dsttype->size == srctype->size) {
-            coerce_to_register_pair(output, srctype, outputReg, outputRegHi);
-        } else {
-            CError_FATAL(9256);
-        }
-        return;
-    }
-
-    CError_FATAL(9261);
-}
-
-void gen_VECTOR128CONST(ENode *expr, short outputReg, short outputRegHi, Operand *output) {
-    int gpr;
-    int vr;
-    COVCResult result;
-
-    vr = outputReg ? outputReg : ALLOC_VR();
-    if (!canoptimizevectorconst(&expr->data.vector128val, expr->rtype, &result))
-        CError_FATAL(9282);
-
-    if (result.op1 != -1) {
-        emitpcode(result.op1, vr, result.arg);
-        output->optype = OpndType_VR;
-        output->reg = vr;
-        return;
-    }
-
-    if (result.op2 != -1) {
-        gpr = ALLOC_GPR();
-        emitpcode(PC_LI, gpr, result.arg);
-        emitpcode(result.op2, vr, 0, gpr);
-        output->optype = OpndType_VR;
-        output->reg = vr;
-        return;
-    }
-
-    CError_FATAL(9298);
-}