[clang] [llvm] [AMDGPU] Emit a waitcnt instruction after each memory instruction (PR #79236)
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Mon Jan 29 00:57:59 PST 2024
================
@@ -2561,6 +2567,70 @@ bool SIMemoryLegalizer::expandAtomicCmpxchgOrRmw(const SIMemOpInfo &MOI,
return Changed;
}
+bool SIMemoryLegalizer::GFX9InsertWaitcntForPreciseMem(MachineFunction &MF) {
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arsenm wrote:
can you just make this happen as a consequence of the existing flow rather than using an entirely separate pass over the function?
https://github.com/llvm/llvm-project/pull/79236
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