[llvm-branch-commits] [llvm] [AMDGPU] Disable VALU sinking and hoisting with WWM (PR #123124)

[Stanislav Mekhanoshin via llvm-branch-commits]

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@@ -2773,6 +2773,9 @@ void AMDGPUDAGToDAGISel::SelectINTRINSIC_WO_CHAIN(SDNode *N) {
   case Intrinsic::amdgcn_wwm:
   case Intrinsic::amdgcn_strict_wwm:
     Opcode = AMDGPU::STRICT_WWM;
+    CurDAG->getMachineFunction()
+        .getInfo<SIMachineFunctionInfo>()
+        ->setInitWholeWave();
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rampitec wrote:

Ack. I can create a separate property HasWWM, but I really want to hear if we even want to go that way.

https://github.com/llvm/llvm-project/pull/123124