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Teach GetUnderlyingObject / BasicAA about addrspacecast

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213025 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2014-07-15 00:56:40 +00:00
parent 5508cfd02c
commit 7137eb36e1
4 changed files with 40 additions and 5 deletions
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3
lib/Analysis/BasicAliasAnalysis.cpp
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@@ -309,7 +309,8 @@ DecomposeGEPExpression(const Value *V, int64_t &BaseOffs,
return V;
}
if (Op->getOpcode() == Instruction::BitCast) {
if (Op->getOpcode() == Instruction::BitCast ||
Op->getOpcode() == Instruction::AddrSpaceCast) {
V = Op->getOperand(0);
continue;
}

3
lib/Analysis/ValueTracking.cpp
View File

@@ -1901,7 +1901,8 @@ llvm::GetUnderlyingObject(Value *V, const DataLayout *TD, unsigned MaxLookup) {
for (unsigned Count = 0; MaxLookup == 0 || Count < MaxLookup; ++Count) {
if (GEPOperator *GEP = dyn_cast<GEPOperator>(V)) {
V = GEP->getPointerOperand();
} else if (Operator::getOpcode(V) == Instruction::BitCast) {
} else if (Operator::getOpcode(V) == Instruction::BitCast ||
Operator::getOpcode(V) == Instruction::AddrSpaceCast) {
V = cast<Operator>(V)->getOperand(0);
} else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(V)) {
if (GA->mayBeOverridden())