[llvm] [GlobalIsel] Combine select of binops (PR #76763)

[Amara Emerson via llvm-commits]

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@@ -544,3 +544,77 @@ body:             |
     %ext:_(s32) = G_ANYEXT %sel
     $w0 = COPY %ext(s32)
 ...
+---
+# select cond, and(x, y), and(z, y) --> and (select, x, z), y
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aemerson wrote:

nit: comment missing `cond` on RHS: ` --> and (select cond, x, z), y`

https://github.com/llvm/llvm-project/pull/76763