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reapply r101364, which has been backed out in r101368

Browse Source 
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101397 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gabor Greif
2010-04-15 20:51:13 +00:00
parent 83821c8941
commit 2ff961f668
43 changed files with 578 additions and 587 deletions
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38
lib/Transforms/Utils/BuildLibCalls.cpp
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@ -395,11 +395,11 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
FT->getParamType(2) != TD->getIntPtrType(Context) ||
FT->getParamType(3) != TD->getIntPtrType(Context))
return false;
if (isFoldable(4, 3, false)) {
EmitMemCpy(CI->getOperand(1), CI->getOperand(2), CI->getOperand(3),
if (isFoldable(3, 2, false)) {
EmitMemCpy(CI->getOperand(0), CI->getOperand(1), CI->getOperand(2),
1, false, B, TD);
replaceCall(CI->getOperand(1));
replaceCall(CI->getOperand(0));
return true;
}
return false;
@ -418,11 +418,11 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
FT->getParamType(2) != TD->getIntPtrType(Context) ||
FT->getParamType(3) != TD->getIntPtrType(Context))
return false;
if (isFoldable(4, 3, false)) {
EmitMemMove(CI->getOperand(1), CI->getOperand(2), CI->getOperand(3),
if (isFoldable(3, 2, false)) {
EmitMemMove(CI->getOperand(0), CI->getOperand(1), CI->getOperand(2),
1, false, B, TD);
replaceCall(CI->getOperand(1));
replaceCall(CI->getOperand(0));
return true;
}
return false;
@ -436,12 +436,12 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
FT->getParamType(2) != TD->getIntPtrType(Context) ||
FT->getParamType(3) != TD->getIntPtrType(Context))
return false;
if (isFoldable(4, 3, false)) {
Value *Val = B.CreateIntCast(CI->getOperand(2), B.getInt8Ty(),
if (isFoldable(3, 2, false)) {
Value *Val = B.CreateIntCast(CI->getOperand(1), B.getInt8Ty(),
false);
EmitMemSet(CI->getOperand(1), Val, CI->getOperand(3), false, B, TD);
replaceCall(CI->getOperand(1));
EmitMemSet(CI->getOperand(0), Val, CI->getOperand(2), false, B, TD);
replaceCall(CI->getOperand(0));
return true;
}
return false;
@ -462,8 +462,8 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
// st[rp]cpy_chk call which may fail at runtime if the size is too long.
// TODO: It might be nice to get a maximum length out of the possible
// string lengths for varying.
if (isFoldable(3, 2, true)) {
Value *Ret = EmitStrCpy(CI->getOperand(1), CI->getOperand(2), B, TD,
if (isFoldable(2, 1, true)) {
Value *Ret = EmitStrCpy(CI->getOperand(0), CI->getOperand(1), B, TD,
Name.substr(2, 6));
replaceCall(Ret);
return true;
@ -479,10 +479,10 @@ bool SimplifyFortifiedLibCalls::fold(CallInst *CI, const TargetData *TD) {
!FT->getParamType(2)->isIntegerTy() ||
FT->getParamType(3) != TD->getIntPtrType(Context))
return false;
if (isFoldable(4, 3, false)) {
Value *Ret = EmitStrNCpy(CI->getOperand(1), CI->getOperand(2),
CI->getOperand(3), B, TD, Name.substr(2, 7));
if (isFoldable(3, 2, false)) {
Value *Ret = EmitStrNCpy(CI->getOperand(0), CI->getOperand(1),
CI->getOperand(2), B, TD, Name.substr(2, 7));
replaceCall(Ret);
return true;
}