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-rw-r--r--lib/IR/Value.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/IR/Value.cpp b/lib/IR/Value.cpp
index e9eb012e6c..89a3c0578c 100644
--- a/lib/IR/Value.cpp
+++ b/lib/IR/Value.cpp
@@ -333,6 +333,7 @@ namespace {
// Various metrics for how much to strip off of pointers.
enum PointerStripKind {
PSK_ZeroIndices,
+ PSK_ZeroIndicesAndAliases,
PSK_InBoundsConstantIndices,
PSK_InBounds
};
@@ -350,6 +351,7 @@ static Value *stripPointerCastsAndOffsets(Value *V) {
do {
if (GEPOperator *GEP = dyn_cast<GEPOperator>(V)) {
switch (StripKind) {
+ case PSK_ZeroIndicesAndAliases:
case PSK_ZeroIndices:
if (!GEP->hasAllZeroIndices())
return V;
@@ -367,7 +369,7 @@ static Value *stripPointerCastsAndOffsets(Value *V) {
} else if (Operator::getOpcode(V) == Instruction::BitCast) {
V = cast<Operator>(V)->getOperand(0);
} else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(V)) {
- if (GA->mayBeOverridden())
+ if (StripKind == PSK_ZeroIndices || GA->mayBeOverridden())
return V;
V = GA->getAliasee();
} else {
@@ -381,6 +383,10 @@ static Value *stripPointerCastsAndOffsets(Value *V) {
} // namespace
Value *Value::stripPointerCasts() {
+ return stripPointerCastsAndOffsets<PSK_ZeroIndicesAndAliases>(this);
+}
+
+Value *Value::stripPointerCastsNoFollowAliases() {
return stripPointerCastsAndOffsets<PSK_ZeroIndices>(this);
}