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InstCombine: Stop handling bitcast in PointerReplacer (#92937)

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These should be irrelevant since opaque pointers.
This commit is contained in:
Matt Arsenault
2024-05-21 20:49:21 +02:00
committed by GitHub
parent ce1d28e645
commit 8cb19ebd21
1 changed files with 1 additions and 10 deletions
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11
llvm/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
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@@ -332,7 +332,7 @@ bool PointerReplacer::collectUsersRecursive(Instruction &I) {
Worklist.insert(SI);
if (!collectUsersRecursive(*SI))
return false;
} else if (isa<GetElementPtrInst, BitCastInst>(Inst)) {
} else if (isa<GetElementPtrInst>(Inst)) {
Worklist.insert(Inst);
if (!collectUsersRecursive(*Inst))
return false;
@@ -393,15 +393,6 @@ void PointerReplacer::replace(Instruction *I) {
NewI->takeName(GEP);
NewI->setIsInBounds(GEP->isInBounds());
WorkMap[GEP] = NewI;
} else if (auto *BC = dyn_cast<BitCastInst>(I)) {
auto *V = getReplacement(BC->getOperand(0));
assert(V && "Operand not replaced");
auto *NewT = PointerType::get(BC->getType()->getContext(),
V->getType()->getPointerAddressSpace());
auto *NewI = new BitCastInst(V, NewT);
IC.InsertNewInstWith(NewI, BC->getIterator());
NewI->takeName(BC);
WorkMap[BC] = NewI;
} else if (auto *SI = dyn_cast<SelectInst>(I)) {
auto *NewSI = SelectInst::Create(
SI->getCondition(), getReplacement(SI->getTrueValue()),