[llvm] [AMDGPU] Skip non-first termintors when forcing emit zero flag (PR #112116)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,21 @@
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -run-pass si-insert-waitcnts -amdgpu-waitcnt-forcezero=1 %s -o - | FileCheck %s
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arsenm wrote:

Just use update_mir_test_checks? The test doesn't show me where the waitcnt is 

https://github.com/llvm/llvm-project/pull/112116