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Apply the patch from PR14160. I failed to construct a testcase for this, but

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I'm applying it anyway since it seems to be obviously correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167370 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2012-11-04 09:02:45 +00:00
parent f23b90858c
commit a1beca6845
1 changed files with 3 additions and 0 deletions
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3
lib/Analysis/BasicAliasAnalysis.cpp
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@ -1245,6 +1245,7 @@ BasicAliasAnalysis::aliasCheck(const Value *V1, uint64_t V1Size,
std::swap(V1, V2);
std::swap(V1Size, V2Size);
std::swap(O1, O2);
std::swap(V1TBAAInfo, V2TBAAInfo);
}
if (const GEPOperator *GV1 = dyn_cast<GEPOperator>(V1)) {
AliasResult Result = aliasGEP(GV1, V1Size, V1TBAAInfo, V2, V2Size, V2TBAAInfo, O1, O2);
@ -1254,6 +1255,7 @@ BasicAliasAnalysis::aliasCheck(const Value *V1, uint64_t V1Size,
if (isa<PHINode>(V2) && !isa<PHINode>(V1)) {
std::swap(V1, V2);
std::swap(V1Size, V2Size);
std::swap(V1TBAAInfo, V2TBAAInfo);
}
if (const PHINode *PN = dyn_cast<PHINode>(V1)) {
AliasResult Result = aliasPHI(PN, V1Size, V1TBAAInfo,
@ -1264,6 +1266,7 @@ BasicAliasAnalysis::aliasCheck(const Value *V1, uint64_t V1Size,
if (isa<SelectInst>(V2) && !isa<SelectInst>(V1)) {
std::swap(V1, V2);
std::swap(V1Size, V2Size);
std::swap(V1TBAAInfo, V2TBAAInfo);
}
if (const SelectInst *S1 = dyn_cast<SelectInst>(V1)) {
AliasResult Result = aliasSelect(S1, V1Size, V1TBAAInfo,