[ScopInfo] Fix: use raw source pointer.

When adding an llvm.memcpy instruction to AliasSetTracker, it uses the raw
source and target pointers which preserve bitcasts.
MemAccInst::getPointerOperand() also returns the raw target pointers, but
Scop::buildAliasGroups() did not for the source pointer. This lead to mismatches
between AliasSetTracker and ScopInfo on which pointer to use.

Fixed by also using raw pointers in Scop::buildAliasGroups().

llvm-svn: 285071

1 files changed, 1 insertions, 1 deletions

diff --git a/polly/lib/Analysis/ScopInfo.cpp b/polly/lib/Analysis/ScopInfo.cpp
index e97c03ddc21..36b639753d4 100644
--- a/polly/lib/Analysis/ScopInfo.cpp
+++ b/polly/lib/Analysis/ScopInfo.cpp
@@ -2935,7 +2935,7 @@ bool Scop::buildAliasGroups(AliasAnalysis &AA) {
         HasWriteAccess.insert(MA->getBaseAddr());
       MemAccInst Acc(MA->getAccessInstruction());
       if (MA->isRead() && isa<MemTransferInst>(Acc))
-        PtrToAcc[cast<MemTransferInst>(Acc)->getSource()] = MA;
+        PtrToAcc[cast<MemTransferInst>(Acc)->getRawSource()] = MA;
       else
         PtrToAcc[Acc.getPointerOperand()] = MA;
       AST.add(Acc);