[PATCH] D106891: [AMDGPU] [Remarks] Emit optimization remarks for atomics generating CAS loop

[Anshil Gandhi via Phabricator via llvm-commits]

gandhi21299 added inline comments.


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Comment at: llvm/lib/CodeGen/AtomicExpandPass.cpp:618
       expandAtomicRMWToCmpXchg(AI, createCmpXchgInstFun);
+      Ctx.getSyncScopeNames(SSNs);
+      auto MemScope = SSNs[AI->getSyncScopeID()].empty()
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rampitec wrote:
> Only if SSNs.empty().
Sorry, what do you mean? SSN will be empty at that point.


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Comment at: llvm/lib/CodeGen/AtomicExpandPass.cpp:624
+        Remark << "A compare and swap loop was generated for an "
+               << AI->getOpcodeName() << "operation at " << MemScope
+               << " memory scope";
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rampitec wrote:
> I believe getOpcodeName() will return "atomicrmw" instead of the operation. Also missing space after it.
getOpcodeName() returns `atomicrmwoperation`, as per the tests the spacing looks correct to me.


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https://reviews.llvm.org/D106891