[llvm] [InstCombine] Use the select condition to try to constant fold binops into select (PR #84696)

[Simon Pilgrim via llvm-commits]

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@@ -360,7 +356,7 @@ define <2 x half> @fmul_sel_op1(i1 %b, <2 x half> %p) {
 ; CHECK-LABEL: @fmul_sel_op1(
 ; CHECK-NEXT:    ret <2 x half> zeroinitializer
 ;
-  %x = fadd <2 x half> %p, <half 1.0, half 2.0> ; thwart complexity-based canonicalization
+  %x = fadd <2 x half> %p, <half 1.0, half 2.0>  ; thwart complexity-based canonicalization
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RKSimon wrote:

unnecessary whitespace diff?

https://github.com/llvm/llvm-project/pull/84696