[PATCH] D69474: AMDGPU: Avoid overwriting saved PC

Mon Oct 28 09:23:17 PDT 2019

arsenm accepted this revision.
arsenm added a comment.
This revision is now accepted and ready to land.

LGTM with test comment

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Comment at: llvm/test/CodeGen/AMDGPU/call-waw-waitcnt.mir:3
+# RUN: llc -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -run-pass=si-insert-waitcnts %s -o - | FileCheck -check-prefix=GCN %s
+--- |
+  define amdgpu_kernel void @call_waw_waitcnt() #0 {
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Could use a short description here of what this is testing, and point out the specific register names

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D69474/new/

https://reviews.llvm.org/D69474