[llvm] [AMDGCN] Use ZExt when handling indices in insertment element (PR #85718)

[Matt Arsenault via llvm-commits]

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@@ -1197,3 +1197,54 @@ reallyfinally:
   store <5 x double> %val, ptr %out, align 1
   ret void
 }
+
+define amdgpu_kernel void @zext_i1_as_index(i1 %Bool, ptr %Ptr, <4 x float> %Vec1, <4 x float> %Vec2) {
+; OPT-LABEL: @test(
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arsenm wrote:

Label name doesn't match. Also use the issue number 

https://github.com/llvm/llvm-project/pull/85718