[clang] [llvm] [AMDGPU] Emit a waitcnt instruction after each memory instruction (PR #79236)

[Jun Wang via cfe-commits]

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@@ -167,6 +167,10 @@ def FeatureCuMode : SubtargetFeature<"cumode",
   "Enable CU wavefront execution mode"
 >;
 
+def FeaturePreciseMemory
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jwanggit86 wrote:

Thanks for the suggestion. It looks it would work. However, I'm not sure the extra overhead is worth it just for having a shorter name in the backend. After all this is not going to be a commonly used option, and the name in the backend is not exposed to end user.


https://github.com/llvm/llvm-project/pull/79236