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Skip, for now, callsites where use of sret argument is not dominated by callsite.

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llvm-svn: 47980
This commit is contained in:
Devang Patel 2008-03-05 23:39:23 +00:00
parent 6bcc9808db
commit 63e7d0fe7d
1 changed files with 4 additions and 0 deletions
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4
lib/Transforms/IPO/StructRetPromotion.cpp
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@ -171,6 +171,10 @@ bool SRETPromotion::isSafeToUpdateAllCallers(Function *F) {
// 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)) {
// TODO : Use dom info and insert PHINodes to collect get results
// from multiple call sites for this GEP.
if (GEP->getParent() != Call->getParent())
return false;
for (Value::use_iterator GEPI = GEP->use_begin(), GEPE = GEP->use_end();
GEPI != GEPE; ++GEPI)
if (!isa<LoadInst>(GEPI))