[llvm] [AArch64] Combine signext_inreg of setcc(... != splat(0)) (PR #157665)

[David Sherwood via llvm-commits]

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@@ -41,7 +40,6 @@ define void @test_masked_store_success_v4i32(<4 x i32> %x, ptr %ptr, <4 x i1> %m
 ; SVE-NEXT:    ptrue p0.s, vl4
 ; SVE-NEXT:    // kill: def $q0 killed $q0 def $z0
 ; SVE-NEXT:    shl v1.4s, v1.4s, #31
-; SVE-NEXT:    cmlt v1.4s, v1.4s, #0
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david-arm wrote:

See comment above on how you can also kill off the shl.

https://github.com/llvm/llvm-project/pull/157665