[llvm] [InstCombine] Fold copysign of selects from sign comparison to sign operand (PR #85627)

[Matt Arsenault via llvm-commits]

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@@ -109,3 +109,18 @@ define float @fabs_mag(float %x, float %y) {
   %r = call float @llvm.copysign.f32(float %a, float %y)
   ret float %r
 }
+
+define float @copysign_conditional(i1 noundef zeroext %x, float %y, float %z) {
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arsenm wrote:

Drop attributes on %x 

https://github.com/llvm/llvm-project/pull/85627