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

1 files changed, 0 insertions, 642 deletions

diff --git a/compiler_and_linker/unsorted/FunctionCalls.c b/compiler_and_linker/unsorted/FunctionCalls.c
deleted file mode 100644
index 67d7443..0000000
--- a/compiler_and_linker/unsorted/FunctionCalls.c
+++ /dev/null
@@ -1,642 +0,0 @@
-#include "compiler/FunctionCalls.h"
-#include "compiler/CError.h"
-#include "compiler/CFunc.h"
-#include "compiler/CMachine.h"
-#include "compiler/CParser.h"
-#include "compiler/CodeGen.h"
-#include "compiler/CompilerTools.h"
-#include "compiler/InstrSelection.h"
-#include "compiler/Operands.h"
-#include "compiler/PCode.h"
-#include "compiler/PCodeUtilities.h"
-#include "compiler/Registers.h"
-#include "compiler/StackFrame.h"
-#include "compiler/StructMoves.h"
-#include "compiler/types.h"
-
-enum {
-    AIF_PassInGPR = 1,
-    AIF_PassInFPR = 2,
-    AIF_PassOnStack = 4,
-    AIF_ExtendTo32Bits = 8,
-    AIF_ForceDoublePrecision = 0x10,
-    AIF_PassInVR = 0x20,
-    AIF_PassMask = AIF_PassInGPR | AIF_PassInFPR | AIF_PassOnStack | AIF_PassInVR
-};
-
-#ifdef __MWERKS__
-#pragma options align=mac68k
-#endif
-typedef struct ArgInfo {
-    struct ArgInfo *next;
-    ENode *expr;
-    Operand opnd;
-    SInt32 offset;
-    short gpr;
-    short gprHi;
-    short fpr;
-    short vr;
-    short evaluated;
-    short flags;
-} ArgInfo;
-#ifdef __MWERKS__
-#pragma options align=reset
-#endif
-
-// forward decls
-static void branch_subroutine_indirect_ctr(Operand *addrOpnd, UInt32 *used_regs);
-
-static ArgInfo *make_arginfo(ENode *expr) {
-    ArgInfo *info = lalloc(sizeof(ArgInfo));
-    memclrw(info, sizeof(ArgInfo));
-
-    info->next = NULL;
-    info->expr = expr;
-    info->offset = -1;
-    info->gpr = -1;
-    info->gprHi = -1;
-    info->fpr = -1;
-    info->vr = -1;
-    info->evaluated = 0;
-    info->flags = 0;
-
-    return info;
-}
-
-static ArgInfo *analyze_arguments(ENode *funcref, ENodeList *arg_expr, FuncArg *arg, UInt32 *used_regs, Boolean *resultHasFloats, char has_varargs) {
-    ArgInfo *infos;
-    ArgInfo *info;
-    SInt32 displ;
-    SInt32 arg_size;
-    int gpr_counter;
-    int fpr_counter;
-    int vr_counter;
-    Type *type;
-    RegClass rclass;
-    Boolean spilledVectorFlag;
-
-    infos = NULL;
-    displ = 0;
-    gpr_counter = 3;
-    fpr_counter = 1;
-    vr_counter = 2;
-
-    for (rclass = 0; rclass < RegClassMax; rclass++)
-        used_regs[rclass] = 0;
-    *resultHasFloats = 0;
-
-    while (arg_expr) {
-        if (arg_expr->node == funcref) {
-            arg_expr = arg_expr->next;
-            arg = arg->next;
-            continue;
-        }
-
-        type = arg_expr->node->rtype;
-        if (infos) {
-            info->next = make_arginfo(arg_expr->node);
-            info = info->next;
-        } else {
-            infos = info = make_arginfo(arg_expr->node);
-        }
-
-        arg_size = 0;
-        if (IS_TYPE_VECTOR(type)) {
-            if (arg == &elipsis) {
-                spilledVectorFlag = 1;
-                info->flags |= AIF_PassOnStack;
-            } else {
-                spilledVectorFlag = 0;
-                if (vr_counter <= 13) {
-                    info->flags |= AIF_PassInVR;
-                    info->vr = vr_counter;
-                    used_regs[RegClass_VR] |= 1 << vr_counter;
-                } else {
-                    spilledVectorFlag = 1;
-                    info->flags |= AIF_PassOnStack;
-                }
-            }
-
-            if (has_varargs) {
-                if (gpr_counter < 10) {
-                    gpr_counter = ((gpr_counter - 2) & ~3) + 5;
-                    if (arg == &elipsis && gpr_counter < 10) {
-                        info->flags |= AIF_PassInGPR;
-                        info->gpr = gpr_counter;
-                        used_regs[RegClass_GPR] |= (15 << gpr_counter) & 0x7E0;
-                    }
-                    gpr_counter += 4;
-                }
-                spilledVectorFlag = 1;
-            }
-
-            if (spilledVectorFlag)
-                arg_size = 16;
-            vr_counter++;
-        } else if (IS_TYPE_FLOAT(type)) {
-            *resultHasFloats = 1;
-            if (!arg || arg == &oldstyle) {
-                if (fpr_counter <= 13) {
-                    info->flags |= AIF_PassInFPR;
-                    info->fpr = fpr_counter;
-                    used_regs[RegClass_FPR] |= 1 << fpr_counter;
-                } else {
-                    info->flags |= AIF_PassOnStack | AIF_ForceDoublePrecision;
-                }
-                arg_size = 8;
-                fpr_counter++;
-                gpr_counter += 2;
-            } else if (arg == &elipsis) {
-                if (gpr_counter < 10) {
-                    info->flags |= AIF_PassInGPR;
-                    info->gpr = gpr_counter;
-                    used_regs[RegClass_GPR] |= 3 << gpr_counter;
-                } else if (gpr_counter == 10) {
-                    info->flags |= AIF_PassInGPR | AIF_PassOnStack | AIF_ForceDoublePrecision;
-                    info->gpr = gpr_counter;
-                    used_regs[RegClass_GPR] |= 3 << gpr_counter;
-                } else {
-                    info->flags |= AIF_PassOnStack | AIF_ForceDoublePrecision;
-                }
-                arg_size = 8;
-                fpr_counter++;
-                gpr_counter += 2;
-            } else {
-                if (fpr_counter <= 13) {
-                    info->flags |= AIF_PassInFPR;
-                    info->fpr = fpr_counter;
-                    used_regs[RegClass_FPR] |= 1 << fpr_counter;
-                } else {
-                    info->flags |= AIF_PassOnStack;
-                }
-
-                if (type->size == 4) {
-                    arg_size = 4;
-                    gpr_counter++;
-                } else {
-                    arg_size = 8;
-                    gpr_counter += 2;
-                }
-
-                fpr_counter++;
-            }
-        } else if (TYPE_IS_8BYTES(type)) {
-            if (gpr_counter <= 10) {
-                info->flags |= AIF_PassInGPR;
-                if (copts.littleendian) {
-                    info->gpr = gpr_counter;
-                    info->gprHi = gpr_counter + 1;
-                } else {
-                    info->gpr = gpr_counter + 1;
-                    info->gprHi = gpr_counter;
-                }
-                used_regs[RegClass_GPR] |= 1 << gpr_counter;
-                if ((gpr_counter + 1) <= 10)
-                    used_regs[RegClass_GPR] |= 1 << (gpr_counter + 1);
-            } else {
-                info->flags |= AIF_PassOnStack;
-            }
-
-            arg_size = 8;
-            gpr_counter += 2;
-        } else if (TYPE_FITS_IN_REGISTER(type)) {
-            if ((!arg || arg == &elipsis || arg == &oldstyle) && type->size < 4)
-                info->flags |= AIF_ExtendTo32Bits;
-
-            if (gpr_counter <= 10) {
-                info->flags |= AIF_PassInGPR;
-                info->gpr = gpr_counter;
-                used_regs[RegClass_GPR] |= 1 << gpr_counter;
-            } else {
-                info->flags |= AIF_PassOnStack;
-            }
-
-            arg_size = 4;
-            gpr_counter++;
-        } else if (IS_TYPE_ARRAY(type) || IS_TYPE_NONVECTOR_STRUCT(type) || IS_TYPE_CLASS(type) ||
-            IS_TYPE_12BYTES_MEMBERPOINTER(type)) {
-            SInt32 gprs_needed = (type->size >> 2) + ((type->size & 3) != 0);
-            if (gpr_counter <= 10) {
-                if ((gpr_counter + gprs_needed - 1) <= 10) {
-                    info->flags |= AIF_PassInGPR;
-                    info->gpr = gpr_counter;
-                    used_regs[RegClass_GPR] |= ((1 << gprs_needed) - 1) << gpr_counter;
-                } else {
-                    info->flags |= AIF_PassInGPR | AIF_PassOnStack;
-                    info->gpr = gpr_counter;
-                    used_regs[RegClass_GPR] |= ((1 << (11 - gpr_counter)) - 1) << gpr_counter;
-                }
-            } else {
-                info->flags |= AIF_PassOnStack;
-            }
-
-            gpr_counter += gprs_needed;
-            arg_size = type->size;
-        } else {
-            CError_FATAL(421);
-        }
-
-        displ = set_out_param_displ(displ, type, info->flags & AIF_PassOnStack, &info->offset, arg_size);
-
-        arg_expr = arg_expr->next;
-        if (arg && arg != &elipsis && arg != &oldstyle)
-            arg = arg->next;
-    }
-
-    update_out_param_size(displ);
-
-    return infos;
-}
-
-static void pass_in_memory(ArgInfo *info) {
-    Type *type;
-    Operand opnd;
-
-    type = info->expr->rtype;
-    memclrw(&opnd, sizeof(Operand));
-
-    if (TYPE_FITS_IN_REGISTER(type)) {
-        if (TYPE_IS_8BYTES(type)) {
-            if (!info->evaluated)
-                GEN_NODE(info->expr, &info->opnd);
-            coerce_to_register_pair(&info->opnd, type, 0, 0);
-
-            load_store_register(
-                PC_STW, info->opnd.reg, 1,
-                NULL, low_offset + out_param_displ_to_offset(info->offset));
-            load_store_register(
-                PC_STW, info->opnd.regHi, 1,
-                NULL, high_offset + out_param_displ_to_offset(info->offset));
-        } else {
-            if (!info->evaluated)
-                GEN_NODE(info->expr, &info->opnd);
-            if (info->flags & AIF_ExtendTo32Bits)
-                extend32(&info->opnd, type, 0);
-            ENSURE_GPR(&info->opnd, type, 0);
-
-            load_store_register(
-                PC_STW, info->opnd.reg, 1,
-                NULL, out_param_displ_to_offset(info->offset));
-        }
-    } else if (IS_TYPE_FLOAT(type)) {
-        if (!info->evaluated)
-            GEN_NODE(info->expr, &info->opnd);
-        ENSURE_FPR(&info->opnd, type, 0);
-
-        if (type->size == 4 && !(info->flags & AIF_ForceDoublePrecision)) {
-            load_store_register(
-                PC_STFS, info->opnd.reg, 1,
-                NULL, out_param_displ_to_offset(info->offset));
-        } else {
-            load_store_register(
-                PC_STFD, info->opnd.reg, 1,
-                NULL, out_param_displ_to_offset(info->offset));
-        }
-    } else if (IS_TYPE_VECTOR(type)) {
-        if (!info->evaluated)
-            GEN_NODE(info->expr, &info->opnd);
-        ENSURE_VR(&info->opnd, type, 0);
-
-        load_store_register(
-            PC_STVX, info->opnd.reg, 1,
-            NULL, out_param_displ_to_offset(info->offset));
-    } else {
-        opnd.optype = OpndType_IndirectGPR_ImmOffset;
-        opnd.reg = 1;
-        opnd.object = NULL;
-        opnd.immOffset = out_param_displ_to_offset(info->offset);
-
-        if (!info->evaluated)
-            GEN_NODE(info->expr, &info->opnd);
-
-        move_block(&opnd, &info->opnd, type->size, CMach_ArgumentAlignment(type));
-    }
-}
-
-static void pass_in_register(ArgInfo *info) {
-    Type *type;
-
-    type = info->expr->rtype;
-
-    if ((info->flags & AIF_PassMask) == AIF_PassInFPR) {
-        if (!info->evaluated)
-            GEN_NODE_TO_REG(info->expr, info->fpr, 0, &info->opnd);
-        ENSURE_FPR(&info->opnd, type, info->fpr);
-        if (info->opnd.reg != info->fpr)
-            emitpcode(PC_FMR, info->fpr, info->opnd.reg);
-    } else if ((info->flags & AIF_PassMask) == AIF_PassInVR) {
-        if (!info->evaluated)
-            GEN_NODE_TO_REG(info->expr, info->vr, 0, &info->opnd);
-        ENSURE_VR(&info->opnd, type, info->vr);
-        if (info->opnd.reg != info->vr)
-            emitpcode(PC_VMR, info->vr, info->opnd.reg);
-    } else if (TYPE_FITS_IN_REGISTER(type)) {
-        if (TYPE_IS_8BYTES(type)) {
-            if (!info->evaluated)
-                GEN_NODE_TO_REG(info->expr, info->gpr, info->gprHi, &info->opnd);
-            coerce_to_register_pair(&info->opnd, type, info->gpr, info->gprHi);
-            if (copts.littleendian) {
-                if (info->gprHi > 10) {
-                    load_store_register(
-                        PC_STW, info->opnd.regHi, 1,
-                        NULL, high_offset + out_param_displ_to_offset(info->offset));
-                }
-            } else {
-                if (info->gpr > 10) {
-                    load_store_register(
-                        PC_STW, info->opnd.reg, 1,
-                        NULL, low_offset + out_param_displ_to_offset(info->offset));
-                }
-            }
-        } else {
-            if (!info->evaluated)
-                GEN_NODE_TO_REG(info->expr, info->gpr, 0, &info->opnd);
-            if (info->flags & AIF_ExtendTo32Bits)
-                extend32(&info->opnd, type, info->gpr);
-            ENSURE_GPR(&info->opnd, type, info->gpr);
-            if (info->opnd.reg != info->gpr)
-                emitpcode(PC_MR, info->gpr, info->opnd.reg);
-        }
-    } else if (IS_TYPE_FLOAT(type)) {
-        if (!info->evaluated)
-            GEN_NODE(info->expr, &info->opnd);
-
-        if (type->size != 4 && info->opnd.optype == OpndType_IndirectGPR_ImmOffset) {
-            load_store_register(
-                PC_LWZ, info->gpr, info->opnd.reg,
-                info->opnd.object, info->opnd.immOffset);
-            load_store_register(
-                PC_LWZ, info->gpr + 1, info->opnd.reg,
-                info->opnd.object, info->opnd.immOffset + 4);
-        } else {
-            ENSURE_FPR(&info->opnd, type, 0);
-            load_store_register(
-                PC_STFD, info->opnd.reg, 1,
-                NULL, out_param_displ_to_offset(info->offset));
-            load_store_register(
-                PC_LWZ, info->gpr, 1,
-                NULL, out_param_displ_to_offset(info->offset));
-            load_store_register(
-                PC_LWZ, info->gpr + 1, 1,
-                NULL, out_param_displ_to_offset(info->offset) + 4);
-        }
-    } else if (IS_TYPE_VECTOR(type)) {
-        if (!info->evaluated)
-            GEN_NODE(info->expr, &info->opnd);
-
-        if (info->opnd.optype == OpndType_IndirectGPR_ImmOffset) {
-            load_store_register(
-                PC_LWZ, info->gpr, info->opnd.reg,
-                info->opnd.object, info->opnd.immOffset);
-            load_store_register(
-                PC_LWZ, info->gpr + 1, info->opnd.reg,
-                info->opnd.object, info->opnd.immOffset + 4);
-            if ((info->gpr + 2) < 10) {
-                load_store_register(
-                    PC_LWZ, info->gpr + 2, info->opnd.reg,
-                    info->opnd.object, info->opnd.immOffset + 8);
-                load_store_register(
-                    PC_LWZ, info->gpr + 3, info->opnd.reg,
-                    info->opnd.object, info->opnd.immOffset + 12);
-            }
-        } else {
-            ENSURE_VR(&info->opnd, type, 0);
-            load_store_register(
-                PC_STVX, info->opnd.reg, 1,
-                NULL, out_param_displ_to_offset(info->offset));
-            load_store_register(
-                PC_LWZ, info->gpr, 1,
-                NULL, out_param_displ_to_offset(info->offset));
-            load_store_register(
-                PC_LWZ, info->gpr + 1, 1,
-                NULL, out_param_displ_to_offset(info->offset) + 4);
-            if ((info->gpr + 2) < 10) {
-                load_store_register(
-                    PC_LWZ, info->gpr + 2, 1,
-                    NULL, out_param_displ_to_offset(info->offset) + 8);
-                load_store_register(
-                    PC_LWZ, info->gpr + 3, 1,
-                    NULL, out_param_displ_to_offset(info->offset) + 12);
-            }
-        }
-    } else {
-        if (!info->evaluated)
-            GEN_NODE(info->expr, &info->opnd);
-
-        if (type->size <= 4) {
-            if (info->opnd.optype == OpndType_IndirectSymbol)
-                coerce_to_addressable(&info->opnd);
-
-            if (info->opnd.optype == OpndType_IndirectGPR_ImmOffset) {
-                load_store_register(
-                    PC_LWZ, info->gpr, info->opnd.reg,
-                    info->opnd.object, info->opnd.immOffset);
-            } else if (info->opnd.optype == OpndType_IndirectGPR_Indexed) {
-                emitpcode(
-                    PC_LWZX, info->gpr, info->opnd.reg,
-                    info->opnd.regOffset);
-            }
-        } else {
-            SInt32 gprs_needed = (type->size >> 2) + ((type->size & 3) != 0);
-            SInt32 i;
-
-            make_addressable(&info->opnd, gprs_needed * 4, 12);
-            for (i = 0; i < gprs_needed; i++) {
-                if (info->opnd.reg != (info->gpr + i)) {
-                    load_store_register(
-                        PC_LWZ, info->gpr + i, info->opnd.reg,
-                        info->opnd.object, info->opnd.immOffset + i * 4);
-                }
-            }
-
-            if (info->opnd.reg >= info->gpr && info->opnd.reg < (info->gpr + gprs_needed)) {
-                load_store_register(
-                    PC_LWZ, info->opnd.reg, info->opnd.reg,
-                    info->opnd.object, info->opnd.immOffset + (info->opnd.reg - info->gpr) * 4);
-            }
-        }
-    }
-}
-
-static void pass_in_register_and_memory(ArgInfo *info) {
-    Type *type;
-    int gpr;
-    SInt32 offset;
-
-    type = info->expr->rtype;
-    gpr = info->gpr;
-    offset = 0;
-    while (offset < type->size && gpr <= 10) {
-        load_store_register(
-            PC_LWZ, gpr, 1,
-            NULL, offset + out_param_displ_to_offset(info->offset));
-        gpr++;
-        offset += 4;
-    }
-}
-
-static Boolean needs_TOC_reload(Object *func) {
-    return 0;
-}
-
-static void load_virtual_function(TypeClass *tclass, SInt32 offset, int reg, Operand *opnd) {
-    if (tclass->flags & CLASS_HANDLEOBJECT) {
-        load_store_register(PC_LWZ, 12, reg, NULL, 0);
-        load_store_register(PC_LWZ, 12, 12, NULL, tclass->vtable->offset);
-    } else {
-        load_store_register(PC_LWZ, 12, reg, NULL, tclass->vtable->offset);
-    }
-    load_store_register(PC_LWZ, 12, 12, NULL, offset);
-    opnd->optype = OpndType_GPR;
-    opnd->reg = 12;
-}
-
-static void branch_subroutine_indirect(Object *func, Operand *addrOpnd, UInt32 *used_regs) {
-    if (addrOpnd->reg != 12)
-        emitpcode(PC_MR, 12, addrOpnd->reg);
-
-    used_regs[RegClass_GPR] |= 1 << 12;
-    branch_subroutine(func, 1, used_regs);
-}
-
-static void evaluate_nested_function_calls(ArgInfo *info) {
-    ArgInfo *scan;
-
-    scan = info->next;
-    while (scan && !scan->expr->hascall)
-        scan = scan->next;
-
-    if (scan)
-        evaluate_nested_function_calls(scan);
-
-    if (info->expr->hascall) {
-        GEN_NODE(info->expr, &info->opnd);
-        info->evaluated = 1;
-    }
-}
-
-void call_function(ENode *expr, Operand *output) {
-    ArgInfo *infos; // r31
-    ENode *funcref = expr->data.funccall.funcref; // r27
-    Type *resultType = expr->data.funccall.functype->functype; // r26
-    ENode *node = NULL; // r25
-    char has_varargs; // r24
-    ArgInfo *info; // r22
-    Operand opnd;
-    UInt32 used_regs[RegClassMax] = {0};
-    Boolean has_floats;
-    FuncArg *arg;
-
-    memclrw(&opnd, sizeof(Operand));
-
-    has_varargs = 0;
-    for (arg = expr->data.funccall.functype->args; arg; arg = arg->next) {
-        if (arg == &elipsis) {
-            has_varargs = 1;
-            break;
-        }
-    }
-
-    if (expr->data.funccall.functype->flags & FUNC_FLAGS_80) {
-        if (CMach_PassResultInHiddenArg(resultType))
-            node = expr->data.funccall.args->next->node;
-        else
-            node = expr->data.funccall.args->node;
-    }
-
-    infos = analyze_arguments(
-        node,
-        expr->data.funccall.args,
-        expr->data.funccall.functype->args,
-        used_regs,
-        &has_floats,
-        has_varargs);
-
-    if (infos)
-        evaluate_nested_function_calls(infos);
-
-    if (funcref->hascall) {
-        GEN_NODE_TO_GPR(funcref, &opnd, TYPE(&void_ptr), 0);
-    } else if (node && node->hascall) {
-        GEN_NODE_TO_GPR(node, &opnd, TYPE(&void_ptr), 0);
-    }
-
-    for (info = infos; info; info = info->next) {
-        if (info->flags & AIF_PassOnStack)
-            pass_in_memory(info);
-    }
-    for (info = infos; info; info = info->next) {
-        if ((info->flags & AIF_PassMask) == (AIF_PassInGPR | AIF_PassOnStack))
-            pass_in_register_and_memory(info);
-    }
-    for (info = infos; info; info = info->next) {
-        int flag = info->flags & AIF_PassMask;
-        if (
-            flag == AIF_PassInGPR ||
-            flag == AIF_PassInFPR ||
-            flag == AIF_PassInVR
-            )
-            pass_in_register(info);
-    }
-
-    if (funcref->type == EOBJREF) {
-        TypeClass *tclass;
-        SInt32 vfOffset;
-        if (CParser_IsVirtualFunction(funcref->data.objref, &tclass, &vfOffset)) {
-            load_virtual_function(
-                tclass,
-                vfOffset,
-                CMach_PassResultInHiddenArg(resultType) ? Register4 : Register3,
-                &opnd
-                );
-            branch_subroutine_indirect_ctr(&opnd, used_regs);
-        } else if (node) {
-            if (!node->hascall) {
-                GEN_NODE_TO_REG(node, 12, 0, &opnd);
-                ENSURE_GPR(&opnd, TYPE(&void_ptr), 12);
-            }
-            branch_subroutine_indirect(funcref->data.objref, &opnd, used_regs);
-        } else {
-            branch_subroutine(funcref->data.objref, needs_TOC_reload(funcref->data.objref), used_regs);
-        }
-    } else {
-        if (!funcref->hascall)
-            GEN_NODE_TO_REG(funcref, 12, 0, &opnd);
-        ENSURE_GPR(&opnd, TYPE(&void_ptr), 12);
-        branch_subroutine_indirect_ctr(&opnd, used_regs);
-    }
-
-    if (IS_TYPE_FLOAT(resultType)) {
-        output->optype = OpndType_FPR;
-        output->reg = used_virtual_registers[RegClass_FPR]++;
-        emitpcode(PC_FMR, output->reg, 1);
-    } else if (IS_TYPE_VECTOR(resultType)) {
-        output->optype = OpndType_VR;
-        output->reg = used_virtual_registers[RegClass_VR]++;
-        emitpcode(PC_VMR, output->reg, 2);
-    } else if (TYPE_FITS_IN_REGISTER(resultType)) {
-        if (resultType->size > 4) {
-            output->optype = OpndType_GPRPair;
-            output->reg = used_virtual_registers[RegClass_GPR]++;
-            output->regHi = used_virtual_registers[RegClass_GPR]++;
-            emitpcode(PC_MR, output->reg, low_reg);
-            emitpcode(PC_MR, output->regHi, high_reg);
-        } else {
-            output->optype = OpndType_GPR;
-            output->reg = used_virtual_registers[RegClass_GPR]++;
-            emitpcode(PC_MR, output->reg, 3);
-        }
-    } else {
-        output->optype = OpndType_Absolute;
-        output->immediate = 0;
-    }
-}
-
-static void branch_subroutine_indirect_ctr(Operand *addrOpnd, UInt32 *used_regs) {
-    if (addrOpnd->reg != 12)
-        emitpcode(PC_MR, 12, addrOpnd->reg);
-
-    emitpcode(PC_MTCTR, 12);
-    used_regs[RegClass_GPR] |= 1 << 12;
-    branch_subroutine_ctr(used_regs);
-}