[clang] [llvm] [AMDGPU] Implement Waitcnt Expansion for Profiling (PR #169345)

[Pankaj Dwivedi via llvm-commits]

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@@ -63,6 +63,11 @@ static cl::opt<bool> ForceEmitZeroLoadFlag(
     cl::desc("Force all waitcnt load counters to wait until 0"),
     cl::init(false), cl::Hidden);
 
+static cl::opt<bool> ExpandWaitcntProfiling(
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PankajDwivedi-25 wrote:

I think it is for debugging purposes only? I've removed all driver integration. This is similar to existing profiling flags like: -amdgpu-waitcnt-forcezero

https://github.com/llvm/llvm-project/pull/169345