[PATCH] D113203: [AMDGPU] Small correction in SITargetLowering::performOrCombine()

Konstantin Pyzhov via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Nov 4 10:09:04 PDT 2021


kpyzhov created this revision.
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kpyzhov added a project: AMDGPU.
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Using the "LHS" variable in the splitBinaryBitConstantOp() call is not valid since "LHS" and "RHS" may be swapped earlier in the code.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113203

Files:
  llvm/lib/Target/AMDGPU/SIISelLowering.cpp


Index: llvm/lib/Target/AMDGPU/SIISelLowering.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -9474,7 +9474,7 @@
   const ConstantSDNode *CRHS = dyn_cast<ConstantSDNode>(N->getOperand(1));
   if (CRHS) {
     if (SDValue Split
-          = splitBinaryBitConstantOp(DCI, SDLoc(N), ISD::OR, LHS, CRHS))
+          = splitBinaryBitConstantOp(DCI, SDLoc(N), ISD::OR, N->getOperand(0), CRHS))
       return Split;
   }
 


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