[llvm] [InstCombine] Fold (X == 0 ? Y : 0) | X to X == 0 ? Y : X (PR #138373)
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Fri May 2 19:06:12 PDT 2025
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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->
:warning: C/C++ code formatter, clang-format found issues in your code. :warning:
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You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp -- llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
``````````
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
index 77e886c98..e24a8ee51 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
@@ -3692,7 +3692,7 @@ Instruction *InstCombinerImpl::visitOr(BinaryOperator &I) {
/*NSW=*/true, /*NUW=*/true))
return R;
}
-
+
// (X == 0 ? Y : 0) | X -> X == 0 ? Y : X
// X | (X == 0 ? Y : 0) -> X == 0 ? Y : X
if (Instruction *R = foldOrOfSelectZero(I, Op0, Op1))
``````````
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https://github.com/llvm/llvm-project/pull/138373
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