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-rw-r--r--compiler_and_linker/unsorted/IroEval.c914
1 files changed, 0 insertions, 914 deletions
diff --git a/compiler_and_linker/unsorted/IroEval.c b/compiler_and_linker/unsorted/IroEval.c
deleted file mode 100644
index adf74b8..0000000
--- a/compiler_and_linker/unsorted/IroEval.c
+++ /dev/null
@@ -1,914 +0,0 @@
-#include "compiler/IroEval.h"
-#include "compiler/CInt64.h"
-#include "compiler/CMachine.h"
-#include "compiler/CParser.h"
-#include "compiler/IroFlowgraph.h"
-#include "compiler/IroLinearForm.h"
-#include "compiler/IroMalloc.h"
-#include "compiler/IroPointerAnalysis.h"
-#include "compiler/IroUtil.h"
-#include "compiler/IroVars.h"
-#include "compiler/enode.h"
-#include "compiler/objects.h"
-#include "compiler/types.h"
-
-static Boolean IsAssociativeENodeType[MAXEXPR];
-
-void IRO_InitializeIsAssociativeENodeTypeArray(void) {
- int i;
-
- for (i = 0; i < MAXEXPR; i++)
- IsAssociativeENodeType[i] = 0;
-
- IsAssociativeENodeType[EPOSTINC] = 0;
- IsAssociativeENodeType[EPOSTDEC] = 0;
- IsAssociativeENodeType[EPREINC] = 0;
- IsAssociativeENodeType[EPREDEC] = 0;
- IsAssociativeENodeType[EINDIRECT] = 0;
- IsAssociativeENodeType[EMONMIN] = 0;
- IsAssociativeENodeType[EBINNOT] = 0;
- IsAssociativeENodeType[ELOGNOT] = 0;
- IsAssociativeENodeType[EFORCELOAD] = 0;
- IsAssociativeENodeType[EMUL] = 1;
- IsAssociativeENodeType[EMULV] = 1;
- IsAssociativeENodeType[EDIV] = 0;
- IsAssociativeENodeType[EMODULO] = 0;
- IsAssociativeENodeType[EADDV] = 1;
- IsAssociativeENodeType[ESUBV] = 0;
- IsAssociativeENodeType[EADD] = 1;
- IsAssociativeENodeType[ESUB] = 0;
- IsAssociativeENodeType[ESHL] = 0;
- IsAssociativeENodeType[ESHR] = 0;
- IsAssociativeENodeType[ELESS] = 0;
- IsAssociativeENodeType[EGREATER] = 0;
- IsAssociativeENodeType[ELESSEQU] = 0;
- IsAssociativeENodeType[EGREATEREQU] = 0;
- IsAssociativeENodeType[EEQU] = 0;
- IsAssociativeENodeType[ENOTEQU] = 0;
- IsAssociativeENodeType[EAND] = 1;
- IsAssociativeENodeType[EXOR] = 1;
- IsAssociativeENodeType[EOR] = 1;
- IsAssociativeENodeType[ELAND] = 0;
- IsAssociativeENodeType[ELOR] = 0;
- IsAssociativeENodeType[EASS] = 0;
- IsAssociativeENodeType[EMULASS] = 0;
- IsAssociativeENodeType[EDIVASS] = 0;
- IsAssociativeENodeType[EMODASS] = 0;
- IsAssociativeENodeType[EADDASS] = 0;
- IsAssociativeENodeType[ESUBASS] = 0;
- IsAssociativeENodeType[ESHLASS] = 0;
- IsAssociativeENodeType[ESHRASS] = 0;
- IsAssociativeENodeType[EANDASS] = 0;
- IsAssociativeENodeType[EXORASS] = 0;
- IsAssociativeENodeType[EORASS] = 0;
- IsAssociativeENodeType[ECOMMA] = 0;
- IsAssociativeENodeType[EPMODULO] = 0;
- IsAssociativeENodeType[EROTL] = 0;
- IsAssociativeENodeType[EROTR] = 0;
- IsAssociativeENodeType[EBCLR] = 0;
- IsAssociativeENodeType[EBTST] = 0;
- IsAssociativeENodeType[EBSET] = 0;
- IsAssociativeENodeType[ETYPCON] = 0;
- IsAssociativeENodeType[EBITFIELD] = 0;
- IsAssociativeENodeType[EINTCONST] = 0;
- IsAssociativeENodeType[EFLOATCONST] = 0;
- IsAssociativeENodeType[ESTRINGCONST] = 0;
- IsAssociativeENodeType[ECOND] = 0;
- IsAssociativeENodeType[EFUNCCALL] = 0;
- IsAssociativeENodeType[EFUNCCALLP] = 0;
- IsAssociativeENodeType[EOBJREF] = 0;
- IsAssociativeENodeType[EMFPOINTER] = 0;
- IsAssociativeENodeType[ENULLCHECK] = 0;
- IsAssociativeENodeType[EPRECOMP] = 0;
- IsAssociativeENodeType[ETEMP] = 0;
- IsAssociativeENodeType[EARGOBJ] = 0;
- IsAssociativeENodeType[ELOCOBJ] = 0;
- IsAssociativeENodeType[ELABEL] = 0;
- IsAssociativeENodeType[ESETCONST] = 0;
- IsAssociativeENodeType[ENEWEXCEPTION] = 0;
- IsAssociativeENodeType[ENEWEXCEPTIONARRAY] = 0;
- IsAssociativeENodeType[EOBJLIST] = 0;
- IsAssociativeENodeType[EMEMBER] = 0;
- IsAssociativeENodeType[ETEMPLDEP] = 0;
- IsAssociativeENodeType[EINSTRUCTION] = 0;
- IsAssociativeENodeType[EDEFINE] = 0;
- IsAssociativeENodeType[EREUSE] = 0;
- IsAssociativeENodeType[EASSBLK] = 0;
- IsAssociativeENodeType[EVECTOR128CONST] = 0;
- IsAssociativeENodeType[ECONDASS] = 0;
-}
-
-void IRO_TruncateValueToType(CInt64 *val, Type *type) {
- if (IRO_IsUnsignedType(type)) {
- switch (type->size) {
- case 1:
- CInt64_ConvertUInt8(val);
- break;
- case 2:
- CInt64_ConvertUInt16(val);
- break;
- case 4:
- CInt64_ConvertUInt32(val);
- break;
- }
- } else {
- switch (type->size) {
- case 1:
- CInt64_ConvertInt8(val);
- break;
- case 2:
- CInt64_ConvertInt16(val);
- break;
- case 4:
- CInt64_ConvertInt32(val);
- break;
- }
- }
-}
-
-void IRO_TruncateBitfieldValueToType(CInt64 *val, Type *type, Type *type2) {
- UInt32 limit;
- UInt32 i;
- UInt32 j;
- CInt64 work;
-
- work = cint64_zero;
- limit = TYPE_BITFIELD(type2)->bitlength;
- for (i = 0; i < limit; i++)
- work = CInt64_Or(work, CInt64_Shl(cint64_one, IRO_MakeULong(i)));
- *val = CInt64_And(*val, work);
-
- if (!IRO_IsUnsignedType(type)) {
- work = cint64_zero;
- for (j = 0; j <= (i - 1); j++) {
- if (j == (i - 1))
- work = CInt64_Or(work, CInt64_Shl(cint64_one, IRO_MakeULong(j)));
- }
- if (CInt64_NotEqual(CInt64_And(work, *val), cint64_zero)) {
- for (j = i - 1; j < 64; j++)
- *val = CInt64_Or(*val, CInt64_Shl(cint64_one, IRO_MakeULong(j)));
- }
- }
-
- IRO_TruncateValueToType(val, type);
-}
-
-void IRO_ConstantFolding(void) {
- IROLinear *nd;
- ENode *expr;
- int isCompare;
- int flag;
- CInt64 val;
-
- for (nd = IRO_FirstLinear; nd; nd = nd->next) {
- switch (nd->type) {
- case IROLinearOp1Arg:
- if (IRO_IsIntConstant(nd->u.monadic)) {
- expr = NULL;
- flag = 0;
- val = nd->u.monadic->u.node->data.intval;
- if (nd->nodetype == ETYPCON && IS_TYPE_FLOAT(nd->rtype)) {
- expr = IRO_NewENode(EFLOATCONST);
- if (!IRO_IsUnsignedType(nd->u.monadic->rtype))
- expr->data.floatval.value = CInt64_ConvertToLongDouble(&val);
- else
- expr->data.floatval.value = CInt64_ConvertUToLongDouble(&val);
- expr->rtype = nd->rtype;
- } else {
- switch (nd->nodetype) {
- case ETYPCON:
- flag = 1;
- break;
- case ELOGNOT:
- val = CInt64_Not(val);
- flag = 1;
- break;
- case EBINNOT:
- val = CInt64_Inv(val);
- flag = 1;
- break;
- case EMONMIN:
- val = CInt64_Neg(val);
- flag = 1;
- break;
- }
-
- if (flag) {
- IRO_TruncateValueToType(&val, nd->rtype);
- expr = IRO_NewENode(EINTCONST);
- expr->rtype = nd->rtype;
- expr->data.intval = val;
- }
- }
-
- if (expr) {
- nd->u.monadic->type = IROLinearNop;
- nd->type = IROLinearOperand;
- nd->u.node = expr;
- }
- }
- break;
-
- case IROLinearOp2Arg:
- if (IRO_IsIntConstant(nd->u.diadic.left) && !IRO_IsIntConstant(nd->u.diadic.right) && IsAssociativeENodeType[nd->nodetype]) {
- IROLinear *tmp = nd->u.diadic.right;
- nd->u.diadic.right = nd->u.diadic.left;
- nd->u.diadic.left = tmp;
- }
-
- if (IRO_IsIntConstant(nd->u.diadic.right) && nd->nodetype == ESUB) {
- nd->nodetype = EADD;
- if (IRO_IsIntConstant(nd->u.diadic.right)) {
- CInt64 v;
- v = CInt64_Neg(nd->u.diadic.right->u.node->data.intval);
- nd->u.diadic.right->u.node->data.intval = v;
- } else {
- Float f;
- f = CMach_CalcFloatMonadic(
- nd->u.diadic.right->rtype,
- '-',
- nd->u.diadic.right->u.node->data.floatval);
- nd->u.diadic.right->u.node->data.floatval = f;
- }
- }
-
- if (
- IRO_IsIntConstant(nd->u.diadic.right) &&
- IsAssociativeENodeType[nd->nodetype] &&
- nd->u.diadic.left->type == IROLinearOp2Arg &&
- nd->u.diadic.left->nodetype == nd->nodetype &&
- nd->u.diadic.left->rtype == nd->rtype &&
- IRO_IsIntConstant(nd->u.diadic.left->u.diadic.right) &&
- nd->u.diadic.left->u.diadic.right->rtype == nd->u.diadic.right->rtype
- )
- {
- IROLinear *tmp = nd->u.diadic.left;
- nd->u.diadic.left = tmp->u.diadic.left;
- tmp->u.diadic.left = tmp->u.diadic.right;
- tmp->u.diadic.right = nd->u.diadic.right;
- tmp->rtype = tmp->u.diadic.left->rtype;
- nd->u.diadic.right = tmp;
- nd = tmp;
- }
-
- if (IRO_IsIntConstant(nd->u.diadic.left) && IRO_IsIntConstant(nd->u.diadic.right)) {
- CInt64 val1 = nd->u.diadic.left->u.node->data.intval;
- CInt64 val2 = nd->u.diadic.right->u.node->data.intval;
- flag = 0;
- switch (nd->nodetype) {
- case EADD:
- val = CInt64_Add(val1, val2);
- flag = 1;
- break;
- case ESUB:
- val = CInt64_Sub(val1, val2);
- flag = 1;
- break;
- case EMUL:
- if (IRO_IsUnsignedType(nd->rtype))
- val = CInt64_MulU(val1, val2);
- else
- val = CInt64_Mul(val1, val2);
- flag = 1;
- break;
- case EDIV:
- if (!CInt64_IsZero(&val2)) {
- if (IRO_IsUnsignedType(nd->rtype))
- val = CInt64_DivU(val1, val2);
- else
- val = CInt64_Div(val1, val2);
- flag = 1;
- }
- break;
- case EMODULO:
- if (!CInt64_IsZero(&val2)) {
- if (IRO_IsUnsignedType(nd->rtype))
- val = CInt64_ModU(val1, val2);
- else
- val = CInt64_Mod(val1, val2);
- flag = 1;
- }
- break;
- case ESHL:
- val = CInt64_Shl(val1, val2);
- flag = 1;
- break;
- case ESHR:
- if (IRO_IsUnsignedType(nd->rtype))
- val = CInt64_ShrU(val1, val2);
- else
- val = CInt64_Shr(val1, val2);
- flag = 1;
- break;
- case EAND:
- val = CInt64_And(val1, val2);
- flag = 1;
- break;
- case EOR:
- val = CInt64_Or(val1, val2);
- flag = 1;
- break;
- case EXOR:
- val = CInt64_Xor(val1, val2);
- flag = 1;
- break;
- case ELESS:
- if (IRO_IsUnsignedType(nd->u.diadic.left->rtype))
- CInt64_SetULong(&val, CInt64_LessU(val1, val2));
- else
- CInt64_SetULong(&val, CInt64_Less(val1, val2));
- flag = 1;
- break;
- case EGREATER:
- if (IRO_IsUnsignedType(nd->u.diadic.left->rtype))
- CInt64_SetULong(&val, CInt64_GreaterU(val1, val2));
- else
- CInt64_SetULong(&val, CInt64_Greater(val1, val2));
- flag = 1;
- break;
- case ELESSEQU:
- if (IRO_IsUnsignedType(nd->u.diadic.left->rtype))
- CInt64_SetULong(&val, CInt64_LessEqualU(val1, val2));
- else
- CInt64_SetULong(&val, CInt64_LessEqual(val1, val2));
- flag = 1;
- break;
- case EGREATEREQU:
- if (IRO_IsUnsignedType(nd->u.diadic.left->rtype))
- CInt64_SetULong(&val, CInt64_GreaterEqualU(val1, val2));
- else
- CInt64_SetULong(&val, CInt64_GreaterEqual(val1, val2));
- flag = 1;
- break;
- case EEQU:
- CInt64_SetULong(&val, CInt64_Equal(val1, val2));
- flag = 1;
- break;
- case ENOTEQU:
- CInt64_SetULong(&val, CInt64_NotEqual(val1, val2));
- flag = 1;
- break;
- }
-
- if (flag) {
- IRO_TruncateValueToType(&val, nd->rtype);
- expr = IRO_NewENode(EINTCONST);
- expr->rtype = nd->rtype;
- expr->data.intval = val;
- nd->u.diadic.left->type = IROLinearNop;
- nd->u.diadic.right->type = IROLinearNop;
- nd->type = IROLinearOperand;
- nd->u.node = expr;
- }
- }
-
- if (IRO_IsFloatConstant(nd->u.diadic.left) && IRO_IsFloatConstant(nd->u.diadic.right)) {
- Float fval1 = nd->u.diadic.left->u.node->data.floatval;
- Float fval2 = nd->u.diadic.right->u.node->data.floatval;
- Float fval;
- flag = 0;
- isCompare = 0;
- switch (nd->nodetype) {
- case EADD:
- fval = CMach_CalcFloatDiadic(nd->rtype, fval1, '+', fval2);
- flag = 1;
- break;
- case ESUB:
- fval = CMach_CalcFloatDiadic(nd->rtype, fval1, '-', fval2);
- flag = 1;
- break;
- case EMUL:
- fval = CMach_CalcFloatDiadic(nd->rtype, fval1, '*', fval2);
- flag = 1;
- break;
- case EDIV:
- fval = CMach_CalcFloatDiadic(nd->rtype, fval1, '/', fval2);
- flag = 1;
- break;
- case ELESS:
- CInt64_SetULong(&val, CMach_CalcFloatDiadicBool(nd->rtype, fval1, '<', fval2));
- flag = 1;
- isCompare = 1;
- break;
- case EGREATER:
- CInt64_SetULong(&val, CMach_CalcFloatDiadicBool(nd->rtype, fval1, '>', fval2));
- flag = 1;
- isCompare = 1;
- break;
- case ELESSEQU:
- CInt64_SetULong(&val, CMach_CalcFloatDiadicBool(nd->rtype, fval1, TK_LESS_EQUAL, fval2));
- flag = 1;
- isCompare = 1;
- break;
- case EGREATEREQU:
- CInt64_SetULong(&val, CMach_CalcFloatDiadicBool(nd->rtype, fval1, TK_GREATER_EQUAL, fval2));
- flag = 1;
- isCompare = 1;
- break;
- case EEQU:
- CInt64_SetULong(&val, CMach_CalcFloatDiadicBool(nd->rtype, fval1, TK_LOGICAL_EQ, fval2));
- flag = 1;
- isCompare = 1;
- break;
- case ENOTEQU:
- CInt64_SetULong(&val, CMach_CalcFloatDiadicBool(nd->rtype, fval1, TK_LOGICAL_NE, fval2));
- flag = 1;
- isCompare = 1;
- break;
- }
-
- if (flag) {
- if (isCompare) {
- IRO_TruncateValueToType(&val, nd->rtype);
- expr = IRO_NewENode(EINTCONST);
- expr->rtype = nd->rtype;
- expr->data.intval = val;
- nd->u.diadic.left->type = IROLinearNop;
- nd->u.diadic.right->type = IROLinearNop;
- nd->type = IROLinearOperand;
- nd->u.node = expr;
- } else {
- expr = IRO_NewENode(EFLOATCONST);
- expr->rtype = nd->rtype;
- expr->data.floatval = fval;
- nd->u.diadic.left->type = IROLinearNop;
- nd->u.diadic.right->type = IROLinearNop;
- nd->type = IROLinearOperand;
- nd->u.node = expr;
- }
- }
- }
-
- break;
- }
- }
-
- IRO_CheckForUserBreak();
-}
-
-Boolean IRO_EvaluateConditionals(void) {
- IRONode *fnode;
- IROLinear *nd;
- Boolean changed = 0;
- SwitchInfo *switchInfo;
- SwitchCase *swcase;
- char found;
- CInt64 val;
-
- for (fnode = IRO_FirstNode; fnode; fnode = fnode->nextnode) {
- nd = fnode->last;
- switch (nd->type) {
- case IROLinearIf:
- case IROLinearIfNot:
- if (IRO_IsIntConstant(nd->u.label.x4)) {
- Boolean isZero = CInt64_IsZero(&nd->u.label.x4->u.node->data.intval);
- IRO_NopOut(nd->u.label.x4);
- if ((isZero == 0) == (nd->type == IROLinearIf))
- nd->type = IROLinearGoto;
- else
- nd->type = IROLinearNop;
- changed = 1;
- }
- break;
-
- case IROLinearSwitch:
- if (IRO_IsIntConstant(nd->u.swtch.x4)) {
- val = nd->u.swtch.x4->u.node->data.intval;
- switchInfo = nd->u.swtch.info;
- swcase = switchInfo->cases;
-
- IRO_NopOut(nd->u.swtch.x4);
- nd->type = IROLinearGoto;
-
- found = 0;
- while (swcase) {
- if (CInt64_GreaterEqual(val, swcase->min) && CInt64_LessEqual(val, swcase->max)) {
- found = 1;
- nd->u.label.label = swcase->label;
- break;
- }
- swcase = swcase->next;
- }
-
- if (!found)
- nd->u.label.label = switchInfo->defaultlabel;
- changed = 1;
- }
- break;
- }
- }
-
- if (changed) {
- IRO_ComputeSuccPred();
- IRO_ComputeDom();
- }
- IRO_CheckForUserBreak();
-
- return changed;
-}
-
-static int EEquConst(IROLinear *nd) {
- return nd && (nd->nodetype == EEQU) && IRO_IsIntConstant(nd->u.diadic.right);
-}
-
-static Object *VEquConst(IROLinear *nd) {
- if (EEquConst(nd))
- return IRO_IsVariable(nd->u.diadic.left);
- else
- return NULL;
-}
-
-static int IsConsecutive(CInt64 a, CInt64 b) {
- CInt64 diff;
-
- if (!CInt64_Equal(a, cint64_min) && !CInt64_Equal(b, cint64_min)) {
- diff = CInt64_Sub(b, a);
- return CInt64_Equal(diff, cint64_one) || CInt64_Equal(diff, cint64_negone);
- }
-
- return 0;
-}
-
-static IROLinear *findLabel(CLabel *label) {
- IROLinear *nd;
-
- for (nd = IRO_FirstLinear; nd; nd = nd->next) {
- if (nd->type == IROLinearLabel && nd->u.label.label == label)
- break;
- }
-
- return nd;
-}
-
-static IROLinear *leftLeaveOf(IROLinear *nd) {
- switch (nd->type) {
- case IROLinearOp1Arg:
- return leftLeaveOf(nd->u.monadic);
- case IROLinearOp2Arg:
- return leftLeaveOf(nd->u.diadic.left);
- case IROLinearOperand:
- return nd;
- default:
- return NULL;
- }
-}
-
-static int checkNode(IRONode *fnode) {
- IROLinear *nd;
-
- if (fnode->numpred <= 1) {
- nd = fnode->first;
- while (nd != fnode->last && (nd->type == IROLinearNop || nd->type == IROLinearLabel))
- nd = nd->next;
-
- if (nd == leftLeaveOf(fnode->last->u.label.x4))
- return 1;
- }
-
- return 0;
-}
-
-static int checkLabel(CLabel *label, IRONode *fnode) {
- switch (fnode->last->type) {
- case IROLinearIf:
- if (label == fnode->last->u.label.label)
- return 1;
- break;
- }
-
- return 0;
-}
-
-static Object *checkExpr(Object *a, IROLinear *nd) {
- Object *b = VEquConst(nd);
-
- if ((!a || a == b) && !IRO_HasSideEffect(nd))
- return b;
-
- return NULL;
-}
-
-static int checkStruct(IRONode *fnode1, IRONode *fnode2) {
- CLabel *label;
- Object *var;
-
- if (fnode1 == fnode2)
- return (int) checkExpr(NULL, fnode1->last->u.label.x4);
-
- label = fnode1->last->u.label.label;
- var = IRO_IsVariable(fnode1->last->u.label.x4->u.monadic);
- return checkNode(fnode2) && checkLabel(label, fnode2) && checkExpr(var, fnode2->last->u.label.x4);
-}
-
-typedef struct ReduceInfo {
- int x0;
- int x4;
- Object *x8;
- IRONode *fnode;
- struct ReduceInfo *next;
- CInt64 val;
-} ReduceInfo;
-
-static int MarkPattern1(ReduceInfo *info1, ReduceInfo *info2, CInt64 *val) {
- ReduceInfo *scan;
-
- if (!info2)
- return 0;
-
- if (info2->x0)
- return MarkPattern1(info1, info2->next, val);
-
- for (scan = info1; scan; scan = scan->next) {
- if (scan->x0 == 2) {
- if (CInt64_Equal(info2->val, scan->val)) {
- IRO_NopOut(scan->fnode->last);
- IRO_NopOut(scan->fnode->last->u.label.x4); // right union?
- scan->x0 = -1;
- return MarkPattern1(info1, info2->next, val);
- }
-
- if (IsConsecutive(info2->val, scan->val)) {
- info2->x0 = 2;
- if (CInt64_Greater(*val, scan->val))
- *val = scan->val;
- if (CInt64_Greater(*val, info2->val))
- *val = info2->val;
- MarkPattern1(scan->next, info2, val);
- MarkPattern1(info1, info1->next, val);
- return 1;
- }
- }
- }
-
- return MarkPattern1(info1, info2->next, val);
-}
-
-static int DoReducible1(ReduceInfo *info, CInt64 val) {
- ReduceInfo *last;
- ReduceInfo *scan;
- IROLinear *right;
- IROLinear *left;
- IROLinear *typconRight;
- IROLinear *typconLeft;
- IROLinear *cond;
- int count;
-
- count = 0;
- for (scan = info; scan; scan = scan->next) {
- if (scan->x0 == 2) {
- last = scan;
- count++;
- }
- }
-
- if (!count)
- return 0;
-
- for (scan = info; scan != last; scan = scan->next) {
- if (scan->x0 == 2) {
- scan->x0 = -1;
- IRO_NopOut(scan->fnode->last);
- IRO_NopOut(scan->fnode->last->u.label.x4);
- }
- }
-
- last->x0 = -1;
-
- cond = last->fnode->last;
- cond->u.label.x4->nodetype = ELESSEQU;
- CInt64_SetULong(&cond->u.label.x4->u.diadic.right->u.node->data.intval, count - 1);
-
- typconLeft = IRO_NewLinear(IROLinearOp1Arg);
- typconLeft->nodetype = ETYPCON;
- typconLeft->rtype = IRO_UnsignedType(cond->u.label.x4->u.diadic.left->rtype);
- typconLeft->index = ++IRO_NumLinear;
-
- typconRight = IRO_NewLinear(IROLinearOp1Arg);
- *typconRight = *typconLeft;
- typconRight->index = ++IRO_NumLinear;
-
- left = IRO_NewLinear(IROLinearOp2Arg);
- left->nodetype = EADD;
- left->rtype = cond->u.label.x4->u.diadic.left->rtype;
- left->index = ++IRO_NumLinear;
-
- right = IRO_NewLinear(IROLinearOperand);
- right->nodetype = EINTCONST;
- right->rtype = cond->u.label.x4->u.diadic.left->rtype;
- right->index = ++IRO_NumLinear;
- right->u.node = IRO_NewENode(EINTCONST);
- right->u.node->data.intval = CInt64_Neg(val);
- right->u.node->rtype = right->rtype;
-
- typconLeft->next = cond->u.label.x4->u.diadic.left->next;
- cond->u.label.x4->u.diadic.left->next = right;
- right->next = left;
- left->next = typconLeft;
-
- typconRight->next = cond->u.label.x4->u.diadic.right->next;
- cond->u.label.x4->u.diadic.right->next = typconRight;
-
- typconLeft->u.monadic = left;
- left->u.diadic.left = cond->u.label.x4->u.diadic.left;
- left->u.diadic.right = right;
- cond->u.label.x4->u.diadic.left = typconLeft;
- typconRight->u.monadic = cond->u.label.x4->u.diadic.right;
- cond->u.label.x4->u.diadic.right = typconRight;
-
- return count;
-};
-
-static int ReducePattern1(IRONode *startnode, IRONode *endnode) {
- ReduceInfo *infos;
- ReduceInfo *info;
- int changed = 0;
- int count;
- IRONode *fnode;
- int i;
- int j;
- CInt64 val;
-
- if (startnode == endnode)
- return 0;
-
- count = 0;
- for (fnode = startnode; fnode != endnode; fnode = fnode->nextnode)
- count++;
-
- infos = oalloc(sizeof(ReduceInfo) * ++count);
-
- fnode = startnode;
- for (i = 0; i < count; i++) {
- infos[i].x0 = 0;
- infos[i].x4 = 0;
- infos[i].fnode = fnode;
- infos[i].next = NULL;
- infos[i].x8 = VEquConst(fnode->last->u.label.x4);
- if (infos[i].x8) {
- infos[i].val = fnode->last->u.label.x4->u.diadic.right->u.node->data.intval;
- infos[i].x4 = 1;
- }
- fnode = fnode->nextnode;
- }
-
- for (j = 0; j < count; j++) {
- if (infos[j].x4 == 1 && infos[j].x8) {
- infos[j].x4 = -1;
- info = &infos[j];
- for (i = j + 1; i < count; i++) {
- if (infos[j].x8 == infos[i].x8) {
- info->next = &infos[i];
- info = &infos[i];
- infos[i].x4 = 0;
- }
- }
- }
- }
-
- for (j = 0; j < count; j++) {
- if (infos[j].x4 == -1) {
- for (info = &infos[j]; info; info = info->next) {
- if (info->x0 == 0) {
- info->x0 = 2;
- val = info->val;
- if (MarkPattern1(&infos[j], info->next, &val)) {
- changed = 1;
- DoReducible1(&infos[j], val);
- } else {
- info->x0 = -1;
- }
- }
- }
- }
- }
-
- return changed;
-}
-
-static int ReduceConsecutiveIf(IRONode *startnode, IRONode *endnode) {
- IRONode *node31;
- IRONode *node30;
- int changed = 0;
-
- while (startnode != endnode) {
- if (checkStruct(startnode, startnode))
- break;
- startnode = startnode->nextnode;
- }
-
- node31 = startnode;
- if (startnode != endnode) {
- node30 = startnode;
- node31 = startnode->nextnode;
- while (node31 != endnode) {
- if (checkStruct(startnode, node31)) {
- node30 = node31;
- node31 = node31->nextnode;
- } else {
- node31 = node30;
- break;
- }
- }
-
- if (node31 == endnode && !checkStruct(startnode, node31))
- node31 = node30;
-
- if (startnode != node31 && ReducePattern1(startnode, node31))
- changed = 1;
-
- if (node31 != endnode)
- node31 = node31->nextnode;
- }
-
- if (node31 != endnode && ReduceConsecutiveIf(node31, endnode))
- changed = 1;
-
- return changed;
-}
-
-int IRO_SimplifyConditionals(void) {
- IRONode *fnode;
- IRONode *start;
- IRONode *end;
- int changed = 0;
-
- for (fnode = IRO_FirstNode; fnode; fnode = fnode->nextnode) {
- if (fnode->last->type == IROLinearIf) {
- start = end = fnode;
- while (fnode->nextnode && fnode->nextnode->last->type == IROLinearIf) {
- end = fnode = fnode->nextnode;
- }
- if (start != end && ReduceConsecutiveIf(start, end))
- changed = 1;
- }
- }
-
- if (changed) {
- IRO_ComputeSuccPred();
- IRO_ComputeDom();
- }
- IRO_CheckForUserBreak();
- return changed;
-}
-
-Boolean IRO_EvaluateDefinitePointers(Object *func) {
- IROLinear *nd;
- Boolean result; // r29
- Boolean changed; // r28
- Boolean changed2; // r26
- IROLinear *nd2; // r25
- IROListNode *scan; // r25
- IROListNode *list;
-
- if (!copts.opt_pointer_analysis)
- return 0;
-
- result = 0;
-
- do {
- changed = 0;
-
- for (nd = IRO_FirstLinear; nd; nd = nd->next) {
- if (
- nd->type == IROLinearOp1Arg &&
- nd->nodetype == EINDIRECT &&
- !(nd->flags & IROLF_Assigned) &&
- nd->pointsToFunction &&
- !IRO_HasSideEffect(nd) &&
- PointerAnalysis_IsLinearNodePointerExprDefinite(func, nd)
- )
- {
- list = NULL;
- PointerAnalysis_LookupLinearNodePointerExpr(func, nd, &list);
- if (list) {
- if (list->list.head && list->list.tail && !list->nextList) {
- changed2 = IRO_LocateFather_Cut_And_Paste(nd, list->list.tail) != NULL;
- if (changed2) {
- IRO_PasteAfter(list->list.head, list->list.tail, nd);
- for (nd2 = list->list.head; nd2 != list->list.tail->next; nd2 = nd2->next) {
- if (nd2->type == IROLinearOperand && nd2->u.node->type == EOBJREF) {
- if (nd2->u.node->data.objref->datatype == DDATA || nd2->u.node->data.objref->datatype == DLOCAL)
- IRO_FindVar(nd2->u.node->data.objref, 1, 1);
- else
- nd2->u.node->data.objref->varptr = NULL;
- }
- }
- }
- changed |= changed2;
- }
-
- while (list) {
- scan = list->nextList;
- IRO_free(list);
- list = scan;
- }
- }
- }
- }
-
- result |= changed;
- IRO_CheckForUserBreak();
- } while (changed);
-
- return result;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 14:39:19 +0000