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authorAsh Wolf <ninji@wuffs.org>2023-01-26 11:30:47 +0000
committerAsh Wolf <ninji@wuffs.org>2023-01-26 11:30:47 +0000
commit094b96ca1df4a035b5f93c351f773306c0241f3f (patch)
tree95ce05e3ebe816c7ee7996206bb37ea17d8ca33c /compiler_and_linker/unsorted/IroVars.c
parentfc0c4c0df7b583b55a08317cf1ef6a71d27c0440 (diff)
downloadMWCC-094b96ca1df4a035b5f93c351f773306c0241f3f.tar.gz
MWCC-094b96ca1df4a035b5f93c351f773306c0241f3f.zip
move lots of source files around to match their actual placement in the original treemain
Diffstat (limited to 'compiler_and_linker/unsorted/IroVars.c')
-rw-r--r--compiler_and_linker/unsorted/IroVars.c1430
1 files changed, 0 insertions, 1430 deletions
diff --git a/compiler_and_linker/unsorted/IroVars.c b/compiler_and_linker/unsorted/IroVars.c
deleted file mode 100644
index 6bb3d02..0000000
--- a/compiler_and_linker/unsorted/IroVars.c
+++ /dev/null
@@ -1,1430 +0,0 @@
-#include "compiler/IroVars.h"
-#include "compiler/IroDump.h"
-#include "compiler/IroFlowgraph.h"
-#include "compiler/IroJump.h"
-#include "compiler/IroLinearForm.h"
-#include "compiler/IroMalloc.h"
-#include "compiler/IroPointerAnalysis.h"
-#include "compiler/IroUtil.h"
-#include "compiler/IROUseDef.h"
-#include "compiler/CClass.h"
-#include "compiler/CError.h"
-#include "compiler/CExpr.h"
-#include "compiler/CFunc.h"
-#include "compiler/CParser.h"
-#include "compiler/CompilerTools.h"
-#include "compiler/Exceptions.h"
-#include "compiler/objects.h"
-#include "compiler/InlineAsm.h"
-#include "compiler/InlineAsmPPC.h"
-#include "compiler/BitVector.h"
-
-#ifdef __MWERKS__
-#pragma options align=mac68k
-#endif
-typedef struct IndirectRecordMatch {
- IROLinear *nd;
- struct IndirectRecordMatch *otherMatches;
-} IndirectRecordMatch;
-
-typedef struct IndirectRecord {
- IROLinear *linear;
- unsigned char flags;
- VarRecord *var;
- SInt32 addend;
- SInt32 size;
- int startbit;
- int endbit;
- Type *type;
- struct IndirectRecord *next;
- IndirectRecordMatch *matches;
- IROLinear *x26;
-} IndirectRecord;
-#ifdef __MWERKS__
-#pragma options align=reset
-#endif
-
-static IndirectRecord *IRO_FirstIndirectRecord;
-static IndirectRecord *IRO_LastIndirectRecord;
-static IROLinear *TheBaseTerm;
-VarRecord *IRO_FirstVar;
-VarRecord *IRO_LastVar;
-SInt32 IRO_NumVars;
-Boolean IRO_IsBitField;
-SInt32 IRO_BaseTerms;
-SInt32 IRO_VarTerms;
-Boolean IRO_IsModifyOp[MAXEXPR];
-Boolean IRO_IsAssignOp[MAXEXPR];
-
-// forward decls
-static Boolean CheckAddress(IROLinear *nd, Boolean *resultFlag);
-static Boolean CheckAddressConsistency(IROLinear *nd, VarRecord *var, SInt32 addend, Type *type);
-static void DisableEntries(IndirectRecord *irec);
-static void DisableAddressedEntries(void);
-static UInt32 ObjectIsArg(Object *obj);
-
-void IRO_InitializeIRO_IsModifyOpArray(void) {
- int i;
-
- for (i = 0; i < MAXEXPR; i++)
- IRO_IsModifyOp[i] = 0;
-
- IRO_IsModifyOp[EPOSTINC] = 1;
- IRO_IsModifyOp[EPOSTDEC] = 1;
- IRO_IsModifyOp[EPREINC] = 1;
- IRO_IsModifyOp[EPREDEC] = 1;
- IRO_IsModifyOp[EINDIRECT] = 0;
- IRO_IsModifyOp[EMONMIN] = 0;
- IRO_IsModifyOp[EBINNOT] = 0;
- IRO_IsModifyOp[ELOGNOT] = 0;
- IRO_IsModifyOp[EFORCELOAD] = 0;
- IRO_IsModifyOp[EMUL] = 0;
- IRO_IsModifyOp[EMULV] = 0;
- IRO_IsModifyOp[EDIV] = 0;
- IRO_IsModifyOp[EMODULO] = 0;
- IRO_IsModifyOp[EADDV] = 0;
- IRO_IsModifyOp[ESUBV] = 0;
- IRO_IsModifyOp[EADD] = 0;
- IRO_IsModifyOp[ESUB] = 0;
- IRO_IsModifyOp[ESHL] = 0;
- IRO_IsModifyOp[ESHR] = 0;
- IRO_IsModifyOp[ELESS] = 0;
- IRO_IsModifyOp[EGREATER] = 0;
- IRO_IsModifyOp[ELESSEQU] = 0;
- IRO_IsModifyOp[EGREATEREQU] = 0;
- IRO_IsModifyOp[EEQU] = 0;
- IRO_IsModifyOp[ENOTEQU] = 0;
- IRO_IsModifyOp[EAND] = 0;
- IRO_IsModifyOp[EXOR] = 0;
- IRO_IsModifyOp[EOR] = 0;
- IRO_IsModifyOp[ELAND] = 0;
- IRO_IsModifyOp[ELOR] = 0;
- IRO_IsModifyOp[EASS] = 0;
- IRO_IsModifyOp[EMULASS] = 1;
- IRO_IsModifyOp[EDIVASS] = 1;
- IRO_IsModifyOp[EMODASS] = 1;
- IRO_IsModifyOp[EADDASS] = 1;
- IRO_IsModifyOp[ESUBASS] = 1;
- IRO_IsModifyOp[ESHLASS] = 1;
- IRO_IsModifyOp[ESHRASS] = 1;
- IRO_IsModifyOp[EANDASS] = 1;
- IRO_IsModifyOp[EXORASS] = 1;
- IRO_IsModifyOp[EORASS] = 1;
- IRO_IsModifyOp[ECOMMA] = 0;
- IRO_IsModifyOp[EPMODULO] = 1;
- IRO_IsModifyOp[EROTL] = 1;
- IRO_IsModifyOp[EROTR] = 1;
- IRO_IsModifyOp[EBCLR] = 1;
- IRO_IsModifyOp[EBTST] = 1;
- IRO_IsModifyOp[EBSET] = 1;
- IRO_IsModifyOp[ETYPCON] = 0;
- IRO_IsModifyOp[EBITFIELD] = 0;
- IRO_IsModifyOp[EINTCONST] = 0;
- IRO_IsModifyOp[EFLOATCONST] = 0;
- IRO_IsModifyOp[ESTRINGCONST] = 0;
- IRO_IsModifyOp[ECOND] = 0;
- IRO_IsModifyOp[EFUNCCALL] = 0;
- IRO_IsModifyOp[EFUNCCALLP] = 0;
- IRO_IsModifyOp[EOBJREF] = 0;
- IRO_IsModifyOp[EMFPOINTER] = 0;
- IRO_IsModifyOp[ENULLCHECK] = 0;
- IRO_IsModifyOp[EPRECOMP] = 0;
- IRO_IsModifyOp[ETEMP] = 0;
- IRO_IsModifyOp[EARGOBJ] = 0;
- IRO_IsModifyOp[ELOCOBJ] = 0;
- IRO_IsModifyOp[ELABEL] = 0;
- IRO_IsModifyOp[ESETCONST] = 0;
- IRO_IsModifyOp[ENEWEXCEPTION] = 0;
- IRO_IsModifyOp[ENEWEXCEPTIONARRAY] = 0;
- IRO_IsModifyOp[EOBJLIST] = 0;
- IRO_IsModifyOp[EMEMBER] = 0;
- IRO_IsModifyOp[ETEMPLDEP] = 0;
- IRO_IsModifyOp[EINSTRUCTION] = 0;
- IRO_IsModifyOp[EDEFINE] = 0;
- IRO_IsModifyOp[EREUSE] = 0;
- IRO_IsModifyOp[EASSBLK] = 0;
- IRO_IsModifyOp[EVECTOR128CONST] = 0;
- IRO_IsModifyOp[ECONDASS] = 1;
-}
-
-void IRO_InitializeIRO_IsAssignOpArray(void) {
- int i;
-
- for (i = 0; i < MAXEXPR; i++)
- IRO_IsAssignOp[i] = 0;
-
- IRO_IsAssignOp[EPOSTINC] = 1;
- IRO_IsAssignOp[EPOSTDEC] = 1;
- IRO_IsAssignOp[EPREINC] = 1;
- IRO_IsAssignOp[EPREDEC] = 1;
- IRO_IsAssignOp[EINDIRECT] = 0;
- IRO_IsAssignOp[EMONMIN] = 0;
- IRO_IsAssignOp[EBINNOT] = 0;
- IRO_IsAssignOp[ELOGNOT] = 0;
- IRO_IsAssignOp[EFORCELOAD] = 0;
- IRO_IsAssignOp[EMUL] = 0;
- IRO_IsAssignOp[EMULV] = 0;
- IRO_IsAssignOp[EDIV] = 0;
- IRO_IsAssignOp[EMODULO] = 0;
- IRO_IsAssignOp[EADDV] = 0;
- IRO_IsAssignOp[ESUBV] = 0;
- IRO_IsAssignOp[EADD] = 0;
- IRO_IsAssignOp[ESUB] = 0;
- IRO_IsAssignOp[ESHL] = 0;
- IRO_IsAssignOp[ESHR] = 0;
- IRO_IsAssignOp[ELESS] = 0;
- IRO_IsAssignOp[EGREATER] = 0;
- IRO_IsAssignOp[ELESSEQU] = 0;
- IRO_IsAssignOp[EGREATEREQU] = 0;
- IRO_IsAssignOp[EEQU] = 0;
- IRO_IsAssignOp[ENOTEQU] = 0;
- IRO_IsAssignOp[EAND] = 0;
- IRO_IsAssignOp[EXOR] = 0;
- IRO_IsAssignOp[EOR] = 0;
- IRO_IsAssignOp[ELAND] = 0;
- IRO_IsAssignOp[ELOR] = 0;
- IRO_IsAssignOp[EASS] = 1;
- IRO_IsAssignOp[EMULASS] = 1;
- IRO_IsAssignOp[EDIVASS] = 1;
- IRO_IsAssignOp[EMODASS] = 1;
- IRO_IsAssignOp[EADDASS] = 1;
- IRO_IsAssignOp[ESUBASS] = 1;
- IRO_IsAssignOp[ESHLASS] = 1;
- IRO_IsAssignOp[ESHRASS] = 1;
- IRO_IsAssignOp[EANDASS] = 1;
- IRO_IsAssignOp[EXORASS] = 1;
- IRO_IsAssignOp[EORASS] = 1;
- IRO_IsAssignOp[ECOMMA] = 0;
- IRO_IsAssignOp[EPMODULO] = 1;
- IRO_IsAssignOp[EROTL] = 1;
- IRO_IsAssignOp[EROTR] = 1;
- IRO_IsAssignOp[EBCLR] = 1;
- IRO_IsAssignOp[EBTST] = 1;
- IRO_IsAssignOp[EBSET] = 1;
- IRO_IsAssignOp[ETYPCON] = 0;
- IRO_IsAssignOp[EBITFIELD] = 0;
- IRO_IsAssignOp[EINTCONST] = 0;
- IRO_IsAssignOp[EFLOATCONST] = 0;
- IRO_IsAssignOp[ESTRINGCONST] = 0;
- IRO_IsAssignOp[ECOND] = 0;
- IRO_IsAssignOp[EFUNCCALL] = 0;
- IRO_IsAssignOp[EFUNCCALLP] = 0;
- IRO_IsAssignOp[EOBJREF] = 0;
- IRO_IsAssignOp[EMFPOINTER] = 0;
- IRO_IsAssignOp[ENULLCHECK] = 0;
- IRO_IsAssignOp[EPRECOMP] = 0;
- IRO_IsAssignOp[ETEMP] = 0;
- IRO_IsAssignOp[EARGOBJ] = 0;
- IRO_IsAssignOp[ELOCOBJ] = 0;
- IRO_IsAssignOp[ELABEL] = 0;
- IRO_IsAssignOp[ESETCONST] = 0;
- IRO_IsAssignOp[ENEWEXCEPTION] = 0;
- IRO_IsAssignOp[ENEWEXCEPTIONARRAY] = 0;
- IRO_IsAssignOp[EOBJLIST] = 0;
- IRO_IsAssignOp[EMEMBER] = 0;
- IRO_IsAssignOp[ETEMPLDEP] = 0;
- IRO_IsAssignOp[EINSTRUCTION] = 0;
- IRO_IsAssignOp[EDEFINE] = 0;
- IRO_IsAssignOp[EREUSE] = 0;
- IRO_IsAssignOp[EASSBLK] = 0;
- IRO_IsAssignOp[EVECTOR128CONST] = 0;
- IRO_IsAssignOp[ECONDASS] = 1;
-}
-
-VarRecord *IRO_FindVar(Object *object, Boolean flag1, Boolean flag2) {
- VarRecord *var;
- VarInfo *vi;
-
- var = object->varptr;
- if (!var && flag1) {
- vi = NULL;
- if (object->datatype == DLOCAL)
- vi = object->u.var.info;
- if (vi)
- vi->usage = 0;
- var = oalloc(sizeof(VarRecord));
- var->object = object;
- var->index = ++IRO_NumVars;
- var->x6 = 0;
- var->xA = 0;
- var->next = NULL;
- var->defs = NULL;
- var->uses = NULL;
- var->x1A = NULL;
- var->x1E = NULL;
- var->xB = 0;
- if (IRO_FirstVar)
- IRO_LastVar->next = var;
- else
- IRO_FirstVar = var;
- IRO_LastVar = var;
- object->varptr = var;
- }
-
- if (var && !flag2) {
- var->xB = 1;
- if (object->datatype == DLOCAL && object->u.var.info && object->u.var.info->noregister == 0)
- object->u.var.info->noregister = 2;
- }
-
- return var;
-}
-
-static void ResetVars(void) {
- VarRecord *var;
-
- for (var = IRO_FirstVar; var; var = var->next) {
- var->xB = 0;
- if (var->object && var->object->datatype == DLOCAL && var->object->u.var.info) {
- if (var->object->u.var.info->noregister == 2)
- var->object->u.var.info->noregister = 0;
- }
- }
-}
-
-static void IRO_HandleExceptionActions(IROLinear *linear) {
- ExceptionAction *action;
-
- for (action = linear->stmt->dobjstack; action; action = action->prev) {
- switch (action->type) {
- case EAT_DESTROYLOCAL:
- IRO_FindVar(action->data.destroy_local.local, 1, 0);
- break;
- case EAT_DESTROYLOCALCOND:
- IRO_FindVar(action->data.destroy_local_cond.local, 1, 0);
- break;
- case EAT_DESTROYLOCALOFFSET:
- IRO_FindVar(action->data.destroy_local_offset.local, 1, 0);
- break;
- case EAT_DESTROYLOCALARRAY:
- IRO_FindVar(action->data.destroy_local_array.localarray, 1, 0);
- break;
- case EAT_DESTROYMEMBER:
- case EAT_DESTROYBASE:
- IRO_FindVar(action->data.destroy_member.objectptr, 1, 0);
- break;
- case EAT_DESTROYMEMBERCOND:
- IRO_FindVar(action->data.destroy_member_cond.objectptr, 1, 0);
- break;
- case EAT_DESTROYMEMBERARRAY:
- IRO_FindVar(action->data.destroy_member_array.objectptr, 1, 0);
- break;
- case EAT_CATCHBLOCK:
- if (action->data.catch_block.catch_object)
- IRO_FindVar(action->data.catch_block.catch_object, 1, 0);
- IRO_FindVar(action->data.catch_block.catch_info_object, 1, 0);
- break;
- case EAT_ACTIVECATCHBLOCK:
- IRO_FindVar(action->data.active_catch_block.catch_info_object, 1, 0);
- break;
- }
- }
-}
-
-void IRO_FindAllVars(void) {
- IROLinear *linear;
- VarRecord *var;
-
- linear = IRO_FirstLinear;
- IRO_NumVars = 0;
- IRO_FirstVar = IRO_LastVar = NULL;
-
- while (linear) {
- if (IS_LINEAR_ENODE(linear, EOBJREF)) {
- if (Inline_IsObjectData(linear->u.node->data.objref) || linear->u.node->data.objref->datatype == DLOCAL)
- IRO_FindVar(linear->u.node->data.objref, 1, (linear->flags & IROLF_Ind) != 0);
- else
- linear->u.node->data.objref->varptr = NULL;
- } else if (linear->type == IROLinearFunccall) {
- if (linear->stmt && IRO_FunctionCallMightThrowException(linear))
- IRO_HandleExceptionActions(linear);
- } else if (linear->type == IROLinearAsm) {
- IAEffects effects;
- int i;
- CodeGen_GetAsmEffects(linear->u.asm_stmt, &effects);
- for (i = 0; i < effects.numoperands; i++)
- IRO_FindVar(effects.operands[i].object, 1, effects.operands[i].type != IAEffect_3);
- }
- linear = linear->next;
- }
-
- var = IRO_FirstVar;
- Bv_AllocVector(&IRO_FuncKills, IRO_NumVars + 1);
- Bv_SetBit(0, IRO_FuncKills);
- while (var) {
- if (Inline_IsObjectData(var->object) || var->xB)
- Bv_SetBit(var->index, IRO_FuncKills);
- var = var->next;
- }
-
- IRO_CheckForUserBreak();
-}
-
-void IRO_ZapVarPtrs(void) {
- VarRecord *var;
-
- for (var = IRO_FirstVar; var; var = var->next)
- var->object->varptr = NULL;
-}
-
-void IRO_UpdateVars(void) {
- IROLinear *linear;
- VarRecord *var;
-
- ResetVars();
-
- for (linear = IRO_FirstLinear; linear; linear = linear->next) {
- if (IS_LINEAR_ENODE(linear, EOBJREF)) {
- if (Inline_IsObjectData(linear->u.node->data.objref) || linear->u.node->data.objref->datatype == DLOCAL)
- IRO_FindVar(linear->u.node->data.objref, 0, (linear->flags & IROLF_Ind) || !(linear->flags & IROLF_Reffed));
- } else if (linear->type == IROLinearFunccall) {
- if (linear->stmt && IRO_FunctionCallMightThrowException(linear))
- IRO_HandleExceptionActions(linear);
- } else if (linear->type == IROLinearAsm) {
- IAEffects effects;
- int i;
- CodeGen_GetAsmEffects(linear->u.asm_stmt, &effects);
- for (i = 0; i < effects.numoperands; i++)
- IRO_FindVar(effects.operands[i].object, 0, effects.operands[i].type != IAEffect_3);
- }
- }
-
- var = IRO_FirstVar;
- Bv_AllocVector(&IRO_FuncKills, IRO_NumVars + 1);
- Bv_SetBit(0, IRO_FuncKills);
- while (var) {
- if (Inline_IsObjectData(var->object) || var->xB)
- Bv_SetBit(var->index, IRO_FuncKills);
- var = var->next;
- }
-}
-
-void IRO_AddElmToList(IROLinear *linear, IROElmList **list) {
- IROElmList *l = oalloc(sizeof(IROElmList));
- l->element = linear;
- l->next = NULL;
- if (!*list) {
- *list = l;
- } else {
- l->next = *list;
- *list = l;
- }
-}
-
-void IRO_DecomposeAddressExpression(IROLinear *linear, IROAddrRecord *rec) {
- if (IS_LINEAR_DIADIC(linear->u.diadic.left, EADD)) {
- IRO_DecomposeAddressExpression(linear->u.diadic.left, rec);
- } else if (IS_LINEAR_ENODE(linear->u.diadic.left, EINTCONST)) {
- rec->numInts++;
- IRO_AddElmToList(linear->u.diadic.left, &rec->ints);
- } else if (IS_LINEAR_ENODE(linear->u.diadic.left, EOBJREF)) {
- rec->numObjRefs++;
- IRO_AddElmToList(linear->u.diadic.left, &rec->objRefs);
- } else {
- rec->numMisc++;
- IRO_AddElmToList(linear->u.diadic.left, &rec->misc);
- }
-
- if (IS_LINEAR_DIADIC(linear->u.diadic.right, EADD)) {
- IRO_DecomposeAddressExpression(linear->u.diadic.right, rec);
- } else if (IS_LINEAR_ENODE(linear->u.diadic.right, EINTCONST)) {
- rec->numInts++;
- IRO_AddElmToList(linear->u.diadic.right, &rec->ints);
- } else if (IS_LINEAR_ENODE(linear->u.diadic.right, EOBJREF)) {
- rec->numObjRefs++;
- IRO_AddElmToList(linear->u.diadic.right, &rec->objRefs);
- } else {
- rec->numMisc++;
- IRO_AddElmToList(linear->u.diadic.right, &rec->misc);
- }
-}
-
-void IRO_DecomposeAddressExpression_Cheap(IROLinear *linear) {
- if (IS_LINEAR_DIADIC(linear->u.diadic.left, EADD)) {
- IRO_DecomposeAddressExpression_Cheap(linear->u.diadic.left);
- } else if (!IS_LINEAR_ENODE(linear->u.diadic.left, EINTCONST)) {
- if (IS_LINEAR_ENODE(linear->u.diadic.left, EOBJREF)) {
- IRO_BaseTerms++;
- TheBaseTerm = linear->u.diadic.left;
- } else {
- IRO_VarTerms++;
- }
- }
-
- if (IS_LINEAR_DIADIC(linear->u.diadic.right, EADD)) {
- IRO_DecomposeAddressExpression_Cheap(linear->u.diadic.right);
- } else if (!IS_LINEAR_ENODE(linear->u.diadic.right, EINTCONST)) {
- if (IS_LINEAR_ENODE(linear->u.diadic.right, EOBJREF)) {
- IRO_BaseTerms++;
- TheBaseTerm = linear->u.diadic.right;
- } else {
- IRO_VarTerms++;
- }
- }
-}
-
-VarRecord *IRO_FindAssigned(IROLinear *linear) {
- VarRecord *rec;
-
- IRO_IsBitField = 0;
- if (linear->type == IROLinearOp2Arg)
- linear = linear->u.diadic.left;
- else if (linear->type == IROLinearOp1Arg)
- linear = linear->u.monadic;
- else
- CError_FATAL(818);
-
- if (IS_LINEAR_MONADIC(linear, EINDIRECT))
- linear = linear->u.monadic;
-
- if (IS_LINEAR_MONADIC(linear, EBITFIELD)) {
- IRO_IsBitField = 1;
- linear = linear->u.monadic;
- }
-
- if (IS_LINEAR_DIADIC(linear, EADD)) {
- if (IS_LINEAR_ENODE(linear->u.diadic.left, EOBJREF) && IS_LINEAR_ENODE(linear->u.diadic.right, EINTCONST)) {
- linear = linear->u.diadic.left;
- } else {
- IRO_BaseTerms = 0;
- IRO_DecomposeAddressExpression_Cheap(linear);
- if (IRO_BaseTerms == 1)
- linear = TheBaseTerm;
- }
- }
-
- if (!IS_LINEAR_ENODE(linear, EOBJREF))
- return NULL;
-
- if ((rec = IRO_FindVar(linear->u.node->data.objref, 0, 1)))
- return rec;
- else
- return NULL;
-}
-
-static void GetKillsByIndirectAssignment(IROLinear *linear) {
- IROListNode *resultList;
- IROLinear *nd;
- IROListNode *list;
- IROListNode *scan;
- IROLinear *inner;
- Boolean result;
- Boolean foundLinear;
-
- result = 0;
-
- if (linear->type == IROLinearOp2Arg)
- linear = linear->u.diadic.left;
- else
- linear = linear->u.monadic;
-
- if (
- linear &&
- linear->type == IROLinearOp1Arg &&
- linear->nodetype == EINDIRECT &&
- (inner = linear->u.monadic) &&
- copts.opt_pointer_analysis &&
- inner->pointsToFunction &&
- FunctionName
- )
- {
- resultList = NULL;
- PointerAnalysis_LookupLinearNodePointerExpr(FunctionName, inner, &resultList);
- if ((list = resultList)) {
- for (scan = list; scan; scan = scan->nextList) {
- if (!scan->list.head || !scan->list.tail) {
- result = 1;
- break;
- }
-
- foundLinear = 0;
- for (nd = scan->list.head; nd != scan->list.tail->next; nd = nd->next) {
- if (nd->type == IROLinearOperand && nd->u.node->type == EOBJREF) {
- foundLinear = 1;
- break;
- }
- }
- if (!foundLinear) {
- result = 1;
- break;
- }
- }
-
- if (!result) {
- while (list) {
- for (nd = list->list.head; nd != list->list.tail->next; nd = nd->next) {
- if (nd->type == IROLinearOperand && nd->u.node->type == EOBJREF) {
- Object *obj;
- VarRecord *var;
- int index;
-
- obj = nd->u.node->data.objref;
- CError_ASSERT(952, obj != NULL);
-
- var = IRO_FindVar(obj, 1, 1);
- CError_ASSERT(954, var != NULL);
-
- index = var->index;
- CError_ASSERT(956, index != 0);
-
- Bv_SetBit(index, IRO_VarKills);
- }
- }
-
- list = list->nextList;
- }
- }
-
- while (resultList) {
- IROListNode *next = resultList->nextList;
- IRO_free(resultList);
- resultList = next;
- }
- } else {
- result = 1;
- }
- } else {
- result = 1;
- }
-
- if (result)
- Bv_Or(IRO_FuncKills, IRO_VarKills);
-}
-
-static void GetKillsByFunctionCall(IROLinear *linear) {
- IROListNode *resultList;
- IROLinear *nd;
- IROListNode *list;
- IROListNode *scan;
- IROLinear *inner;
- Boolean result;
- Boolean foundLinear;
- Object *obj;
- ObjectList *killList;
- ObjectList *olist;
-
- result = 0;
-
- if (
- (inner = linear->u.funccall.linear8) &&
- copts.opt_pointer_analysis &&
- inner->pointsToFunction &&
- FunctionName
- )
- {
- resultList = NULL;
- PointerAnalysis_LookupLinearNodePointerExpr(FunctionName, inner, &resultList);
- if (resultList) {
- for (scan = resultList; scan; scan = scan->nextList) {
- if (!scan->list.head || !scan->list.tail) {
- result = 1;
- break;
- }
-
- foundLinear = 0;
- for (nd = scan->list.head; nd != scan->list.tail->next; nd = nd->next) {
- if (nd->type == IROLinearOperand && nd->u.node->type == EOBJREF) {
- foundLinear = 1;
- obj = nd->u.node->data.objref;
- CError_ASSERT(1028, obj != NULL);
-
- killList = NULL;
- PointerAnalysis_GetFunctionKills(obj, linear, &killList);
-
- for (olist = killList; olist; olist = olist->next) {
- if (!olist->object) {
- result = 1;
- break;
- }
- }
-
- while (killList) {
- ObjectList *next = killList->next;
- IRO_free(killList);
- killList = next;
- }
-
- if (result)
- break;
- }
- }
-
- if (!foundLinear)
- result = 1;
- if (result)
- break;
- }
-
- if (!result) {
- for (scan = resultList; scan; scan = scan->nextList) {
- for (nd = scan->list.head; nd != scan->list.tail->next; nd = nd->next) {
- if (nd->type == IROLinearOperand && nd->u.node->type == EOBJREF) {
- obj = nd->u.node->data.objref;
- killList = NULL;
- PointerAnalysis_GetFunctionKills(obj, linear, &killList);
-
- for (olist = killList; olist; olist = olist->next) {
- VarRecord *var;
- int index;
-
- var = IRO_FindVar(olist->object, 1, 1);
- CError_ASSERT(1079, var != NULL);
-
- index = var->index;
- CError_ASSERT(1081, index != 0);
-
- Bv_SetBit(index, IRO_VarKills);
- }
-
- while (killList) {
- ObjectList *next = killList->next;
- IRO_free(killList);
- killList = next;
- }
- }
- }
- }
- }
-
- while (resultList) {
- IROListNode *next = resultList->nextList;
- IRO_free(resultList);
- resultList = next;
- }
- } else {
- result = 1;
- }
- } else {
- result = 1;
- }
-
- if (result)
- Bv_Or(IRO_FuncKills, IRO_VarKills);
-}
-
-void IRO_GetKills(IROLinear *linear) {
- VarRecord *var;
-
- switch (linear->type) {
- case IROLinearOp1Arg:
- case IROLinearOp2Arg:
- if (IRO_IsAssignOp[linear->nodetype]) {
- IROLinear *assigned;
- int index;
-
- var = IRO_FindAssigned(linear);
- index = 0;
- if (var) index = var->index;
- Bv_SetBit(index, IRO_VarKills);
-
- if (!index)
- GetKillsByIndirectAssignment(linear);
- }
- break;
- case IROLinearFunccall:
- GetKillsByFunctionCall(linear);
- break;
- case IROLinearAsm: {
- IAEffects effects;
- int i;
-
- CodeGen_GetAsmEffects(linear->u.asm_stmt, &effects);
- for (i = 0; i < effects.numoperands; i++) {
- switch (effects.operands[i].type) {
- case IAEffect_1:
- case IAEffect_2:
- case IAEffect_4:
- if ((var = IRO_FindVar(effects.operands[i].object, 0, 1)))
- Bv_SetBit(var->index, IRO_VarKills);
- break;
- }
- }
-
- if (effects.x1 || effects.x4)
- Bv_Or(IRO_FuncKills, IRO_VarKills);
- break;
- }
- }
-}
-
-void IRO_CheckInit(void) {
- IRONode *fnode;
- IROLinear *nd;
- VarRecord *var;
- ObjectList *olist;
- int flag;
- int i;
- BitVector *bv;
-
- IRO_MakeReachable(IRO_FirstNode);
- fnode = IRO_FirstNode;
- Bv_AllocVector(&IRO_VarKills, IRO_NumVars + 1);
-
- while (fnode) {
- Bv_AllocVector(&fnode->x16, IRO_NumVars + 1);
- Bv_AllocVector(&fnode->x1E, IRO_NumVars + 1);
-
- for (nd = fnode->first; nd; nd = nd->next) {
- if (nd->type == IROLinearOperand && nd->u.node->type == EOBJREF) {
- if (nd->flags & IROLF_Ind) {
- if (!(nd->flags & IROLF_Assigned) || (nd->flags & IROLF_Used)) {
- if ((var = IRO_FindVar(nd->u.node->data.objref, 0, 1))) {
- if (!Bv_IsBitSet(var->index, fnode->x1E))
- Bv_SetBit(var->index, fnode->x16);
- }
- }
- } else {
- if ((var = IRO_FindVar(nd->u.node->data.objref, 0, 0))) {
- Bv_SetBit(var->index, fnode->x1E);
- }
- }
- } else if (nd->type == IROLinearOp2Arg && nd->nodetype == EASS) {
- if ((var = IRO_FindAssigned(nd)))
- Bv_SetBit(var->index, fnode->x1E);
- } else if (nd->type == IROLinearAsm) {
- IAEffects effects;
-
- CodeGen_GetAsmEffects(nd->u.asm_stmt, &effects);
- for (i = 0; i < effects.numoperands; i++) {
- var = IRO_FindVar(effects.operands[i].object, 0, 1);
- switch (effects.operands[i].type) {
- case IAEffect_1:
- case IAEffect_2:
- case IAEffect_4:
- Bv_SetBit(var->index, fnode->x1E);
- break;
- }
- }
- }
-
- if (nd == fnode->last)
- break;
- }
-
- fnode = fnode->nextnode;
- }
-
- Bv_AllocVector(&bv, IRO_NumVars + 1);
-
- do {
- flag = 0;
- for (fnode = IRO_FirstNode; fnode; fnode = fnode->nextnode) {
- Bv_Copy(fnode->x1E, bv);
- for (i = 0; i < fnode->numpred; i++)
- Bv_Or(IRO_NodeTable[fnode->pred[i]]->x1E, bv);
- if (!Bv_Compare(bv, fnode->x1E)) {
- Bv_Copy(bv, fnode->x1E);
- flag = 1;
- }
- }
- } while (flag);
-
- Bv_Clear(IRO_VarKills);
-
- for (fnode = IRO_FirstNode; fnode; fnode = fnode->nextnode) {
- if (fnode->x36) {
- Bv_Copy(fnode->x16, bv);
- for (i = 0; i < fnode->numpred; i++)
- Bv_Minus(IRO_NodeTable[fnode->pred[i]]->x1E, bv);
- Bv_Or(bv, IRO_VarKills);
- }
- }
-
- for (olist = locals; olist; olist = olist->next) {
- if ((var = IRO_FindVar(olist->object, 0, 1)) && Bv_IsBitSet(var->index, IRO_VarKills)) {
- VarInfo *vi = olist->object->u.var.info;
- if (!IsTempName(olist->object->name) && !is_volatile_object(olist->object)) {
- if (!IS_TYPE_CLASS(olist->object->type) || !CClass_IsEmpty(TYPE_CLASS(olist->object->type))) {
- CError_SetErrorToken(&vi->deftoken);
- CError_Warning(CErrorStr185, olist->object->name->name);
- }
- }
- }
- }
-
- IRO_CheckForUserBreak();
-}
-
-static void RewriteIndDec(void) {
- IROLinear *add;
- IROLinear *indirect;
- IROLinear *Int;
- IROLinear *nd;
- CInt64 value;
- IROList list;
-
- for (nd = IRO_FirstLinear; nd; nd = nd->next) {
- if (
- nd->type == IROLinearOp1Arg &&
- (nd->nodetype == EPOSTINC || nd->nodetype == EPOSTDEC) &&
- !(nd->flags & IROLF_Reffed)
- ) {
- indirect = nd->u.monadic;
- if (
- indirect->type == IROLinearOp1Arg &&
- indirect->nodetype == EINDIRECT &&
- indirect->u.monadic->type == IROLinearOp1Arg &&
- indirect->u.monadic->nodetype == EBITFIELD
- ) {
- value = IRO_GetSelfAssignmentVal(nd);
- IRO_InitList(&list);
-
- nd->type = IROLinearOp2Arg;
- nd->nodetype = EASS;
- nd->u.diadic.left = indirect;
- IRO_DuplicateExpr(indirect, &list);
-
- Int = IRO_NewIntConst(value, indirect->rtype);
- Int->flags |= IROLF_Used | IROLF_Reffed;
-
- add = IRO_NewLinear(IROLinearOp2Arg);
- add->nodetype = EADD;
- add->u.diadic.left = list.tail;
- add->u.diadic.left->flags = 0;
- add->u.diadic.left->flags |= IROLF_Used | IROLF_Reffed;
- add->u.diadic.right = Int;
- add->rtype = indirect->rtype;
- add->flags = 0;
- add->flags |= IROLF_Used | IROLF_Reffed;
-
- nd->u.diadic.right = add;
-
- IRO_AddToList(Int, &list);
- IRO_AddToList(add, &list);
- IRO_PasteAfter(list.head, list.tail, indirect);
- }
- }
- }
-}
-
-void IRO_RewriteBitFieldTemps(void) {
- IROLinear *nd;
- IROLinear *expr2;
- Object *obj;
- VarRecord *var;
- IROList list;
-
- for (nd = IRO_FirstLinear; nd; nd = nd->next) {
- if ((obj = IRO_IsVariable(nd)) && (nd->flags & IROLF_BitfieldIndirect)) {
- var = IRO_FindVar(obj, 0, 1);
- CError_ASSERT(1526, var != NULL);
-
- expr2 = var->x1E;
- CError_ASSERT(1532, expr2 != NULL);
-
- IRO_InitList(&list);
- IRO_DuplicateExpr(expr2, &list);
- IRO_NopOut(nd->u.monadic);
- nd->u.monadic = list.tail;
- IRO_Paste(list.head, list.tail, nd);
- }
- }
-}
-
-static Boolean FunctionCallMightUseOrKillAnyAddressedVar(IROLinear *funccall) {
- IROLinear *funcnd;
- IROLinear *nd;
- IROListNode *scan;
- IROListNode *resultList;
- ObjectList *olist;
- ObjectList *killList;
- VarRecord *var;
- Boolean result;
- Boolean foundObjRef;
- Object *obj;
-
- result = 0;
-
- funcnd = funccall->u.funccall.linear8;
- if (funcnd && copts.opt_pointer_analysis && funcnd->pointsToFunction && FunctionName) {
- resultList = NULL;
- PointerAnalysis_LookupLinearNodePointerExpr(FunctionName, funcnd, &resultList);
-
- if (resultList) {
- for (scan = resultList; scan; scan = scan->nextList) {
- if (!scan->list.head || !scan->list.tail) {
- result = 1;
- break;
- }
-
- foundObjRef = 0;
- for (nd = scan->list.head; nd != scan->list.tail->next; nd = nd->next) {
- if (nd->type == IROLinearOperand && nd->u.node->type == EOBJREF) {
- foundObjRef = 1;
- obj = nd->u.node->data.objref;
- CError_ASSERT(1592, obj != NULL);
-
- killList = NULL;
- PointerAnalysis_GetFunctionKills(obj, funccall, &killList);
- for (olist = killList; olist; olist = olist->next) {
- if (!olist->object) {
- result = 1;
- } else {
- var = IRO_FindVar(olist->object, 1, 1);
- CError_ASSERT(1604, var != NULL);
- if (var->xB)
- result = 1;
- }
-
- if (result)
- break;
- }
-
- while (killList) {
- ObjectList *next = killList->next;
- IRO_free(killList);
- killList = next;
- }
-
- if (!result) {
- killList = NULL;
- PointerAnalysis_GetFunctionDependencies(obj, funccall, &killList);
- for (olist = killList; olist; olist = olist->next) {
- if (!olist->object) {
- result = 1;
- } else {
- var = IRO_FindVar(olist->object, 1, 1);
- CError_ASSERT(1632, var != NULL);
- if (var->xB)
- result = 1;
- }
-
- if (result)
- break;
- }
-
- while (killList) {
- ObjectList *next = killList->next;
- IRO_free(killList);
- killList = next;
- }
- }
-
- if (result)
- break;
- }
- }
-
- if (!foundObjRef)
- result = 1;
- if (result)
- break;
- }
-
- while (resultList) {
- IROListNode *next = resultList->nextList;
- IRO_free(resultList);
- resultList = next;
- }
- } else {
- result = 1;
- }
- } else {
- result = 1;
- }
-
- return result;
-}
-
-static Boolean IndirectMightUseOrKillAnyAddressedVar(IROLinear *indirect) {
- Boolean result;
- IROLinear *inner;
- IROLinear *nd;
- IROListNode *scan;
- IROListNode *resultList;
- Boolean foundObjRef;
- Object *obj;
- VarRecord *var;
-
- result = 0;
-
- if (
- indirect &&
- indirect->type == IROLinearOp1Arg &&
- indirect->nodetype == EINDIRECT &&
- (inner = indirect->u.monadic) &&
- copts.opt_pointer_analysis &&
- inner->pointsToFunction &&
- FunctionName
- ) {
- resultList = NULL;
- PointerAnalysis_LookupLinearNodePointerExpr(FunctionName, inner, &resultList);
- if (resultList) {
- for (scan = resultList; scan; scan = scan->nextList) {
- if (!scan->list.head || !scan->list.tail) {
- result = 1;
- break;
- }
-
- foundObjRef = 0;
- for (nd = scan->list.head; nd != scan->list.tail->next; nd = nd->next) {
- if (nd->type == IROLinearOperand && nd->u.node->type == EOBJREF) {
- foundObjRef = 1;
- obj = nd->u.node->data.objref;
- CError_ASSERT(1723, obj != NULL);
- var = IRO_FindVar(obj, 1, 1);
- CError_ASSERT(1725, var != NULL);
-
- if (var->xB)
- result = 1;
- }
- }
-
- if (!foundObjRef)
- result = 1;
- if (result)
- break;
- }
-
- while (resultList) {
- IROListNode *next = resultList->nextList;
- IRO_free(resultList);
- resultList = next;
- }
- } else {
- result = 1;
- }
- } else {
- result = 1;
- }
-
- return result;
-}
-
-void IRO_ScalarizeClassDataMembers(void) {
- IROLinear *nd;
- VarRecord *var;
- Boolean flag;
- Object *obj;
- IndirectRecord *irec;
- IndirectRecordMatch *match;
- IROLinear *tmp;
-
- nd = IRO_FirstLinear;
- IRO_FirstIndirectRecord = NULL;
- IRO_LastIndirectRecord = NULL;
- RewriteIndDec();
- IRO_DumpAfterPhase("RewriteIndDec", 0);
- flag = 0;
-
- while (nd) {
- if (nd->type == IROLinearOp1Arg && nd->nodetype == EINDIRECT) {
- CheckAddress(nd, &flag);
- }
- if (nd->type == IROLinearAsm) {
- IAEffects effects;
- SInt32 i;
- CodeGen_GetAsmEffects(nd->u.asm_stmt, &effects);
- for (i = 0; i < effects.numoperands; i++) {
- if ((var = IRO_FindVar(effects.operands[i].object, 0, 1)))
- CheckAddressConsistency(nd, var, -1, &stvoid);
- else
- CError_FATAL(1823);
- }
- }
- if (nd->type == IROLinearFunccall && !flag)
- flag = FunctionCallMightUseOrKillAnyAddressedVar(nd);
-
- nd = nd->next;
- }
-
- if (flag)
- DisableAddressedEntries();
-
- for (irec = IRO_FirstIndirectRecord; irec; irec = irec->next) {
- if (!(irec->flags & 1)) {
- IROList list1;
- IROList list2;
-
- obj = create_temp_object(irec->type);
- var = IRO_FindVar(obj, 1, 1);
- for (match = irec->matches; match; match = match->otherMatches) {
- IRO_InitList(&list1);
- IRO_InitList(&list2);
- IRO_DuplicateExpr(match->nd, &list1);
- IRO_DuplicateExpr(match->nd, &list2);
- if (match->nd->type == IROLinearOperand && match->nd->u.node->type == EOBJREF) {
- tmp = IRO_LocateFather(match->nd);
- if (irec->flags & 2) {
- tmp->flags |= IROLF_BitfieldIndirect;
- var->x1A = match->nd->rtype;
- var->x1E = list2.tail;
- }
- match->nd->u.node = create_objectrefnode(obj);
- irec->x26 = list2.tail;
- } else {
- tmp = IRO_LocateFather(match->nd);
- if (irec->flags & 2) {
- tmp->flags |= IROLF_BitfieldIndirect;
- var->x1A = match->nd->rtype;
- var->x1E = list2.tail;
- }
- irec->x26 = list2.tail;
-
- IRO_NopOut(tmp->u.monadic);
- tmp->u.monadic = IRO_NewLinear(IROLinearOperand);
- tmp->u.monadic->u.node = create_objectrefnode(obj);
- tmp->u.monadic->rtype = match->nd->rtype;
- tmp->u.monadic->index = ++IRO_NumLinear;
- tmp->u.monadic->flags |= IROLF_Ind | IROLF_Reffed;
- IRO_NopOut(match->nd);
- IRO_PasteAfter(tmp->u.monadic, tmp->u.monadic, match->nd);
- }
- }
-
- if (ObjectIsArg(irec->var->object)) {
- IROLinear *op1;
- IROLinear *op2;
- IROLinear *op3;
- IROLinear *op4;
- IROLinear *op5;
-
- op1 = IRO_NewLinear(IROLinearOperand);
- op1->u.node = create_objectrefnode(obj);
- op1->rtype = op1->u.node->data.objref->type;
- op1->index = ++IRO_NumLinear;
- op1->flags |= IROLF_Ind | IROLF_Assigned;
-
- op2 = list1.tail;
-
- op3 = IRO_NewLinear(IROLinearOp1Arg);
- op3->nodetype = EINDIRECT;
- op3->rtype = irec->type;
- op3->u.monadic = op1;
- op3->index = ++IRO_NumLinear;
- op3->flags |= IROLF_Assigned;
-
- op4 = IRO_NewLinear(IROLinearOp1Arg);
- op4->nodetype = EINDIRECT;
- op4->rtype = irec->type;
- op4->u.monadic = op2;
- op4->index = ++IRO_NumLinear;
- op4->flags |= IROLF_Reffed;
-
- op5 = IRO_NewLinear(IROLinearOp2Arg);
- op5->nodetype = EASS;
- op5->u.diadic.left = op3;
- op5->u.diadic.right = op4;
- op5->rtype = irec->type;
- op5->index = ++IRO_NumLinear;
-
- op2->next = op4;
- op4->next = op1;
- op1->next = op3;
- op3->next = op5;
-
- IRO_PasteAfter(list1.head, op5, IRO_FirstLinear);
- }
- }
- }
-
- IRO_CheckForUserBreak();
-}
-
-static Boolean CheckAddress(IROLinear *nd, Boolean *resultFlag) {
- IROLinear *inner;
- VarRecord *var;
- Boolean result;
-
- inner = nd->u.monadic;
- if (inner->type == IROLinearOp1Arg && inner->nodetype == EBITFIELD)
- inner = inner->u.monadic;
-
- result = 0;
-
- if (inner->type == IROLinearOperand && inner->u.node->type == EOBJREF) {
- if (IS_TYPE_CLASS(inner->u.node->data.objref->type) || IS_TYPE_STRUCT(inner->u.node->data.objref->type) ||
- IS_TYPE_ARRAY(inner->u.node->data.objref->type)) {
- if (inner->u.node->data.objref->datatype == DLOCAL) {
- var = IRO_FindVar(inner->u.node->data.objref, 0, 1);
- CError_ASSERT(2240, var != NULL);
- CheckAddressConsistency(nd, var, 0, nd->rtype);
- result = 1;
- }
- }
- } else if (
- inner->type == IROLinearOp2Arg &&
- inner->nodetype == EADD &&
- inner->u.diadic.left->type == IROLinearOperand &&
- inner->u.diadic.left->u.node->type == EOBJREF) {
- if (
- inner->u.diadic.right->type == IROLinearOperand &&
- inner->u.diadic.right->u.node->type == EINTCONST &&
- inner->u.diadic.right->u.node->data.intval.hi == 0) {
- if (
- IS_TYPE_CLASS(inner->u.diadic.left->u.node->data.objref->type) ||
- IS_TYPE_STRUCT(inner->u.diadic.left->u.node->data.objref->type) ||
- IS_TYPE_ARRAY(inner->u.diadic.left->u.node->data.objref->type)
- ) {
- if (inner->u.diadic.left->u.node->data.objref->datatype == DLOCAL) {
- var = IRO_FindVar(inner->u.diadic.left->u.node->data.objref, 0, 1);
- CError_ASSERT(2267, var != NULL);
- CheckAddressConsistency(nd, var, inner->u.diadic.right->u.node->data.intval.lo, nd->rtype);
- result = 1;
- }
- }
- } else {
- if (
- IS_TYPE_CLASS(inner->u.diadic.left->u.node->data.objref->type) ||
- IS_TYPE_STRUCT(inner->u.diadic.left->u.node->data.objref->type) ||
- IS_TYPE_ARRAY(inner->u.diadic.left->u.node->data.objref->type)
- ) {
- if (inner->u.diadic.left->u.node->data.objref->datatype == DLOCAL) {
- var = IRO_FindVar(inner->u.diadic.left->u.node->data.objref, 0, 1);
- CheckAddressConsistency(nd, var, -1, nd->rtype);
- result = 1;
- }
- }
- }
- }
-
- if (!result && !*resultFlag) {
- *resultFlag = IndirectMightUseOrKillAnyAddressedVar(nd);
- }
-
- return 0;
-}
-
-static Boolean CheckAddressConsistency(IROLinear *nd, VarRecord *var, SInt32 addend, Type *type) {
- IndirectRecord *rp;
- IndirectRecordMatch *match;
- UInt32 flag;
- IROLinear *inner;
- UInt32 start_bit;
- UInt32 end_bit;
-
- flag = 0;
- inner = nd->u.monadic;
- if (inner->type == IROLinearOp1Arg && inner->nodetype == EBITFIELD) {
- start_bit = TYPE_BITFIELD(inner->rtype)->offset + 8 * addend;
- end_bit = start_bit + TYPE_BITFIELD(inner->rtype)->bitlength - 1;
- } else {
- start_bit = 8 * addend;
- end_bit = start_bit + 8 * type->size - 1;
- }
-
- if (var->xB && !copts.opt_pointer_analysis)
- return 0;
-
- if (nd->rtype && CParser_IsVolatile(nd->rtype, nd->nodeflags & ENODE_FLAG_QUALS))
- addend = -1;
- if (is_volatile_object(var->object))
- addend = -1;
-
- for (rp = IRO_FirstIndirectRecord; rp; rp = rp->next) {
- if (rp->var->index == var->index) {
- if (rp->flags & 1)
- return 0;
-
- if (addend == -1) {
- flag = 1;
- break;
- }
-
- if (IRO_TypesEqual(rp->type, type) && rp->startbit == start_bit && rp->endbit == end_bit) {
- match = oalloc(sizeof(IndirectRecordMatch));
- match->nd = inner;
- match->otherMatches = NULL;
- if (!rp->matches) {
- rp->matches = match;
- } else {
- match->otherMatches = rp->matches;
- rp->matches = match;
- }
-
- IRO_Dump("Exact Match of Type and bits at %d and %d\n", rp->linear->index, nd->index);
- IRO_Dump("Rp->startbit=%d,Rp->endbit=%d,start_bit=%d,end_bit=%d\n", rp->startbit, rp->endbit, start_bit, end_bit);
- return 1;
- }
-
- if (rp->startbit == start_bit && rp->endbit == end_bit && !IRO_TypesEqual(rp->type, type)) {
- IRO_Dump("match on bits but mismatch on type %d and %d\n", rp->linear->index, nd->index);
- IRO_Dump("Rp->startbit=%d,Rp->endbit=%d,start_bit=%d,end_bit=%d\n", rp->startbit, rp->endbit, start_bit, end_bit);
- flag = 1;
- break;
- }
-
- if (rp->startbit >= start_bit && end_bit >= rp->startbit) {
- IRO_Dump("Overlap detected --1 %d and %d\n", rp->linear->index, nd->index);
- IRO_Dump("Rp->startbit=%d,Rp->endbit=%d,start_bit=%d,end_bit=%d\n", rp->startbit, rp->endbit, start_bit, end_bit);
- flag = 1;
- break;
- }
-
- if (rp->startbit < start_bit && rp->endbit >= start_bit) {
- IRO_Dump("Overlap detected --2 %d and %d\n", rp->linear->index, nd->index);
- IRO_Dump("Rp->startbit=%d,Rp->endbit=%d,start_bit=%d,end_bit=%d\n", rp->startbit, rp->endbit, start_bit, end_bit);
- flag = 1;
- break;
- }
- }
- }
-
- if (flag) {
- DisableEntries(rp);
- if (addend >= 0)
- return 0;
- }
-
- IRO_Dump("Create Entry at %d\n", nd->index);
- IRO_Dump("start_bit=%d,end_bit=%d\n", start_bit, end_bit);
-
- rp = oalloc(sizeof(IndirectRecord));
- rp->linear = nd;
- rp->flags = 0;
- rp->var = var;
- rp->addend = addend;
- rp->size = type->size;
- rp->type = type;
- rp->next = NULL;
- rp->matches = oalloc(sizeof(IndirectRecordMatch));
- rp->matches->nd = inner;
- rp->matches->otherMatches = NULL;
- rp->startbit = start_bit;
- rp->endbit = end_bit;
-
- if (nd->type == IROLinearOp1Arg && nd->nodetype == EINDIRECT &&
- nd->u.monadic->type == IROLinearOp1Arg && nd->u.monadic->nodetype == EBITFIELD)
- rp->flags |= 2;
-
- if (!(IS_TYPE_FLOAT(type) || IS_TYPE_INT(type) || IS_TYPE_POINTER_ONLY(type)) ||
- addend == -1 || ((inner->flags & IROLF_4000) && ObjectIsArg(var->object)))
- rp->flags |= 1;
-
- if (IRO_FirstIndirectRecord)
- IRO_LastIndirectRecord->next = rp;
- else
- IRO_FirstIndirectRecord = rp;
- IRO_LastIndirectRecord = rp;
- return 1;
-}
-
-static void DisableEntries(IndirectRecord *irec) {
- IndirectRecord *scan;
-
- for (scan = IRO_FirstIndirectRecord; scan; scan = scan->next) {
- if (irec->var->index == scan->var->index)
- scan->flags |= 1;
- }
-}
-
-static void DisableAddressedEntries(void) {
- IndirectRecord *scan;
-
- for (scan = IRO_FirstIndirectRecord; scan; scan = scan->next) {
- if (scan->var->xB)
- scan->flags |= 1;
- }
-}
-
-static UInt32 ObjectIsArg(Object *obj) {
- ObjectList *scan;
-
- for (scan = arguments; scan; scan = scan->next) {
- if (scan->object == obj)
- return 1;
- }
-
- return 0;
-}
-