cseDef *cdp;
assert (sym);
- cdp = Safe_calloc (1, sizeof (cseDef));
+ cdp = Safe_alloc (sizeof (cseDef));
cdp->sym = sym;
cdp->diCode = ic;
}
break;
case CAST:
- /* if this is a cast of a literal value */
- if (IS_OP_LITERAL (IC_RIGHT (ic)))
- {
- ic->op = '=';
- IC_RIGHT (ic) =
- operandFromValue (valCastLiteral (operandType (IC_LEFT (ic)),
- operandLitValue (IC_RIGHT (ic))));
- IC_LEFT (ic) = NULL;
- SET_ISADDR (IC_RESULT (ic), 0);
- }
- /* if casting to the same */
- if (compareType (operandType (IC_RESULT (ic)),
- operandType (IC_RIGHT (ic))) == 1)
- {
- ic->op = '=';
- IC_LEFT (ic) = NULL;
- SET_ISADDR (IC_RESULT (ic), 0);
- }
- break;
+ {
+ sym_link *otype = operandType(IC_RIGHT(ic));
+ sym_link *ctype = operandType(IC_LEFT(ic));
+ /* if this is a cast of a literal value */
+ if (IS_OP_LITERAL (IC_RIGHT (ic)) &&
+ !(IS_GENPTR(ctype) && (IS_PTR(otype) && !IS_GENPTR(otype)))) {
+ ic->op = '=';
+ IC_RIGHT (ic) =
+ operandFromValue (valCastLiteral (operandType (IC_LEFT (ic)),
+ operandLitValue (IC_RIGHT (ic))));
+ IC_LEFT (ic) = NULL;
+ SET_ISADDR (IC_RESULT (ic), 0);
+ }
+ /* if casting to the same */
+ if (compareType (operandType (IC_RESULT (ic)),
+ operandType (IC_RIGHT (ic))) == 1) {
+ ic->op = '=';
+ IC_LEFT (ic) = NULL;
+ SET_ISADDR (IC_RESULT (ic), 0);
+ }
+ }
+ break;
case '!':
if (IS_OP_LITERAL (IC_LEFT (ic)))
{
/* updateSpillLocation - keeps track of register spill location */
/*-----------------------------------------------------------------*/
void
-updateSpillLocation (iCode * ic)
+updateSpillLocation (iCode * ic, int induction)
{
- sym_link *setype;
-
- if (POINTER_SET (ic))
- return;
-
- if (ic->nosupdate)
- return;
+ sym_link *setype;
- /* for the form true_symbol := iTempNN */
- if (ASSIGN_ITEMP_TO_SYM (ic)
- && !SPIL_LOC (IC_RIGHT (ic)))
- {
+ if (POINTER_SET (ic))
+ return;
- setype = getSpec (operandType (IC_RESULT (ic)));
+ if (ic->nosupdate)
+ return;
- if (!OP_SYMBOL(IC_RIGHT (ic))->noSpilLoc &&
- !IS_VOLATILE (setype) &&
- !IN_FARSPACE (SPEC_OCLS (setype)) &&
- /* PENDING */
- !TARGET_IS_Z80 &&
- !OTHERS_PARM (OP_SYMBOL (IC_RESULT (ic))))
-
- SPIL_LOC (IC_RIGHT (ic)) =
- IC_RESULT (ic)->operand.symOperand;
- }
+ /* for the form true_symbol := iTempNN */
+ if (ASSIGN_ITEMP_TO_SYM (ic) &&
+ !SPIL_LOC (IC_RIGHT (ic))) {
- if (ASSIGN_ITEMP_TO_ITEMP (ic) &&
- !SPIL_LOC (IC_RIGHT (ic)) &&
- !bitVectBitsInCommon (OP_DEFS (IC_RIGHT (ic)), OP_USES (IC_RESULT (ic))) &&
- OP_SYMBOL (IC_RESULT (ic))->isreqv)
- {
+ setype = getSpec (operandType (IC_RESULT (ic)));
- setype = getSpec (operandType (IC_RESULT (ic)));
+ if (!OP_SYMBOL(IC_RIGHT (ic))->noSpilLoc &&
+ !IS_VOLATILE (setype) &&
+ !IN_FARSPACE (SPEC_OCLS (setype)) &&
+ !OTHERS_PARM (OP_SYMBOL (IC_RESULT (ic))))
- if (!OP_SYMBOL(IC_RIGHT (ic))->noSpilLoc &&
- !IS_VOLATILE (setype) &&
- !IN_FARSPACE (SPEC_OCLS (setype)) &&
- /* PENDING */
- !TARGET_IS_Z80 &&
- !OTHERS_PARM (OP_SYMBOL (IC_RESULT (ic))))
+ SPIL_LOC (IC_RIGHT (ic)) =
+ IC_RESULT (ic)->operand.symOperand;
+ }
- SPIL_LOC (IC_RIGHT (ic)) =
- SPIL_LOC (IC_RESULT (ic));
- }
+ if (ASSIGN_ITEMP_TO_ITEMP (ic)) {
+
+ if (!SPIL_LOC (IC_RIGHT (ic)) &&
+ !bitVectBitsInCommon (OP_DEFS (IC_RIGHT (ic)), OP_USES (IC_RESULT (ic))) &&
+ OP_SYMBOL (IC_RESULT (ic))->isreqv) {
+
+ setype = getSpec (operandType (IC_RESULT (ic)));
+
+ if (!OP_SYMBOL(IC_RIGHT (ic))->noSpilLoc &&
+ !IS_VOLATILE (setype) &&
+ !IN_FARSPACE (SPEC_OCLS (setype)) &&
+ !OTHERS_PARM (OP_SYMBOL (IC_RESULT (ic))))
+
+ SPIL_LOC (IC_RIGHT (ic)) =
+ SPIL_LOC (IC_RESULT (ic));
+ }
+ /* special case for inductions */
+ if (induction &&
+ OP_SYMBOL(IC_RIGHT(ic))->isreqv &&
+ !OP_SYMBOL(IC_RESULT (ic))->noSpilLoc &&
+ !SPIL_LOC(IC_RESULT(ic))) {
+ SPIL_LOC (IC_RESULT (ic)) = SPIL_LOC (IC_RIGHT (ic));
+ }
+ }
}
-
/*-----------------------------------------------------------------*/
/* setUsesDef - sets the uses def bitvector for a given operand */
/*-----------------------------------------------------------------*/
/* too often, if it does happen then the user pays */
/* the price */
computeControlFlow (ebbs, count, 1);
- werror (W_CONTROL_FLOW, ic->filename, ic->lineno);
+ if (!options.lessPedantic) {
+ werror (W_CONTROL_FLOW, ic->filename, ic->lineno);
+ }
return;
}
remiCodeFromeBBlock (ebb, ic);
computeControlFlow (ebbs, count, 1);
- werror (W_CONTROL_FLOW, ic->filename, ic->lineno);
+ if (!options.lessPedantic) {
+ werror (W_CONTROL_FLOW, ic->filename, ic->lineno);
+ }
return;
}
{
sym_link *t1 = operandType (IC_LEFT (ic)), *t2;
- if (TARGET_IS_DS390)
+ /* if (TARGET_IS_DS390) */
+ if (options.model == MODEL_FLAT24)
{
/* hack-o-matic! */
return;
{
/* update the spill location for this */
- updateSpillLocation (ic);
+ updateSpillLocation (ic,0);
if (POINTER_SET (ic) &&
!(IS_BITFIELD (OP_SYMBOL (IC_RESULT (ic))->etype)))
pdic = NULL;
}
+#if 0
/* if found then eliminate this and add to */
/* to cseSet an element containing result */
/* of this with previous opcode */
if (pdic)
{
-
if (IS_ITEMP (IC_RESULT (ic)))
{
-
+
/* replace in the remaining of this block */
replaceAllSymBySym (ic->next, IC_RESULT (ic), IC_RESULT (pdic), &ebb->ndompset);
/* remove this iCode from inexpressions of all
defic = ic;
}
+#else
+ /* Alternate code */
+ if (pdic && IS_ITEMP(IC_RESULT(ic))) {
+ /* if previous definition found change this to an assignment */
+ ic->op = '=';
+ IC_RIGHT(ic) = operandFromOperand(IC_RESULT(pdic));
+ SET_ISADDR(IC_RESULT(ic),0);
+ SET_ISADDR(IC_RIGHT (ic),0);
+ }
+ if (!(POINTER_SET (ic)) && IC_RESULT (ic)) {
+ deleteItemIf (&cseSet, ifDefSymIsX, IC_RESULT (ic));
+ addSetHead (&cseSet, newCseDef (IC_RESULT (ic), ic));
+ }
+ defic = ic;
+#endif
/* if assignment to a parameter which is not
mine and type is a pointer then delete
pointerGets to take care of aliasing */
projects / fw / sdcc / blobdiff