[clang] [compiler-rt] [llvm] [PGO][AMDGPU] Add offload profiling with uniformity-aware optimization (PR #177665)

[Matt Arsenault via cfe-commits]

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@@ -44,6 +48,19 @@ using namespace llvm;
 
 #define DEBUG_TYPE "spill-code-placement"
 
+static cl::opt<bool> OffloadFlattenSpillFrequency(
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arsenm wrote:

Don't need new options, just directly use the m

https://github.com/llvm/llvm-project/pull/177665