[llvm] Enable FoldOpIntoSelect when the Op's other parameter is non-const (PR #166102)
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Sun Nov 2 14:15:39 PST 2025
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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->
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You can test this locally with the following command:
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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Transforms/InstCombine/InstructionCombining.cpp --diff_from_common_commit
``````````
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index 391b6fd6e..b158e0f62 100644
--- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -2264,7 +2264,8 @@ Instruction *InstCombinerImpl::foldBinOpIntoSelectOrPhi(BinaryOperator &I) {
bool IsOtherParamConst = isa<Constant>(I.getOperand(1));
if (auto *Sel = dyn_cast<SelectInst>(I.getOperand(0))) {
- if (Instruction *NewSel = FoldOpIntoSelect(I, Sel, false, !IsOtherParamConst))
+ if (Instruction *NewSel =
+ FoldOpIntoSelect(I, Sel, false, !IsOtherParamConst))
return NewSel;
} else if (auto *PN = dyn_cast<PHINode>(I.getOperand(0))) {
if (Instruction *NewPhi = foldOpIntoPhi(I, PN))
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https://github.com/llvm/llvm-project/pull/166102
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