================
@@ -3997,6 +3997,27 @@ static Value
*foldOrUnsignedUMulOverflowICmp(BinaryOperator &I,
return nullptr;
}
+/// Fold select(X >s 0, 0, -X) | smax(X, 0) --> abs(X)
+/// select(X <s 0, -X, 0) | smax(X, 0) --> abs(X)
+static Value *FoldOrOfSelectSmaxToAbs(BinaryOperator &I,
+ InstCombiner::BuilderTy &Builder) {
+ Value *X;
+ Value *Sel;
+ if (match(&I, m_c_Or(m_Value(Sel), m_OneUse(m_Intrinsic<Intrinsic::smax>(
----------------
wenju-he wrote:
> Use m_SMax
done
https://github.com/llvm/llvm-project/pull/165200
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