[llvm] [GlobalIsel] Combine selects with constants (PR #76089)

[Amara Emerson via llvm-commits]

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@@ -2514,7 +2517,8 @@ define i32 @cmp_to_ands6(i32 %num) {
 ; GISEL:       // %bb.0:
 ; GISEL-NEXT:    and w8, w0, #0xfe
 ; GISEL-NEXT:    cmp w8, #16
-; GISEL-NEXT:    csel w0, w8, wzr, hs
+; GISEL-NEXT:    cset w9, hs
+; GISEL-NEXT:    and w0, w9, w8
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aemerson wrote:

This looks worse?

https://github.com/llvm/llvm-project/pull/76089