[llvm] [SROA] Prevent load atomic vector from being generated (PR #112432)
via llvm-commits
llvm-commits at lists.llvm.org
Wed Oct 16 09:09:56 PDT 2024
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@@ -2853,6 +2853,11 @@ class AllocaSliceRewriter : public InstVisitor<AllocaSliceRewriter, bool> {
bool visitLoadInst(LoadInst &LI) {
LLVM_DEBUG(dbgs() << " original: " << LI << "\n");
+
+ // load atomic vector would be generated, which is illegal
+ if (LI.isAtomic() && NewAI.getAllocatedType()->isVectorTy())
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jofrn wrote:
Something like `bool LoadInst::isValidAtomicTy(AllocaInst &AI) const`? AllocaSliceRewriter needs to look at the associated `alloca`.
https://github.com/llvm/llvm-project/pull/112432
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