[llvm] [SLP] Make getSameOpcode support different instructions if they have same semantics. (PR #112181)
Han-Kuan Chen via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 21 03:35:47 PDT 2024
================
@@ -14935,7 +15108,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry *E, bool PostponedPHIs) {
Value *V = Builder.CreateBinOp(
static_cast<Instruction::BinaryOps>(E->getOpcode()), LHS,
RHS);
- propagateIRFlags(V, E->Scalars, VL0, It == MinBWs.end());
+ propagateIRFlags(V, E->Scalars, nullptr, It == MinBWs.end());
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HanKuanChen wrote:
Actually I don't know why we pass VL0 here. Only alternate operation should pass non nullptr value.
https://github.com/llvm/llvm-project/pull/112181
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