[clang] [llvm] [AMDGPU] Emit a waitcnt instruction after each memory instruction (PR #79236)
Pierre van Houtryve via cfe-commits
cfe-commits at lists.llvm.org
Sun Jan 28 22:41:11 PST 2024
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@@ -641,6 +644,9 @@ class SIMemoryLegalizer final : public MachineFunctionPass {
bool expandAtomicCmpxchgOrRmw(const SIMemOpInfo &MOI,
MachineBasicBlock::iterator &MI);
+ bool GFX9InsertWaitcntForPreciseMem(MachineFunction &MF);
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Pierre-vh wrote:
Agreed, this should definitely be a virtual function such as `insertWaitcntForPreciseMem` and let the CacheControl implementation do what is needed. This is just emulating what `CacheControl` already does
https://github.com/llvm/llvm-project/pull/79236
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