[llvm] [AMDGPU] Handle CreateBinOp not returning BinaryOperator (PR #137791)

[Matt Arsenault via llvm-commits]

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@@ -10094,3 +10094,12 @@ define i64 @udiv_i64_9divbits(i8 %size) {
   %div = udiv i64 %num, 10
   ret i64 %div
 }
+
+define void @srem_zero_zero() {
+; GCN-LABEL: kernel:
+; GCN:       ; %bb.0: ; %entry
+; GCN-NEXT:    s_endpgm
+entry:
+  %B = srem <32 x i64> zeroinitializer, zeroinitializer
+  ret void
+}
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arsenm wrote:

Need to make this not-dead code and use return value. Also can shrink this to a reasonable vector size, like 2 x 

https://github.com/llvm/llvm-project/pull/137791