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cache dereferenced iterators 

llvm-svn: 108134
This commit is contained in:
Gabor Greif 2010-07-12 11:19:24 +00:00
parent 8629f12bb8
commit 6143704ac5
1 changed files with 3 additions and 3 deletions
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6
llvm/lib/Transforms/IPO/StructRetPromotion.cpp
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@ -171,16 +171,16 @@ bool SRETPromotion::isSafeToUpdateAllCallers(Function *F) {
// Check FirstArg's users.
for (Value::use_iterator ArgI = FirstArg->use_begin(),
ArgE = FirstArg->use_end(); ArgI != ArgE; ++ArgI) {
User *U = *ArgI;
// If FirstArg user is a CallInst that does not correspond to current
// call site then this function F is not suitable for sret promotion.
if (CallInst *CI = dyn_cast<CallInst>(ArgI)) {
if (CallInst *CI = dyn_cast<CallInst>(U)) {
if (CI != Call)
return false;
}
// If FirstArg user is a GEP whose all users are not LoadInst then
// this function F is not suitable for sret promotion.
else if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(ArgI)) {
else if (GetElementPtrInst *GEP = dyn_cast<GetElementPtrInst>(U)) {
// TODO : Use dom info and insert PHINodes to collect get results
// from multiple call sites for this GEP.
if (GEP->getParent() != Call->getParent())