[llvm] 0fe83eb - AMDGPU: Drop FP_ROUND second value check

[Matt Arsenault via llvm-commits]

Author: Matt Arsenault
Date: 2023-05-24T08:49:04+01:00
New Revision: 0fe83eb5c37b632d1b7e545d6e108f9b1852050a

URL: https://github.com/llvm/llvm-project/commit/0fe83eb5c37b632d1b7e545d6e108f9b1852050a
DIFF: https://github.com/llvm/llvm-project/commit/0fe83eb5c37b632d1b7e545d6e108f9b1852050a.diff

LOG: AMDGPU: Drop FP_ROUND second value check

This doesn't mean what I thought it meant and is an optimization
hint flag.

Added: 
    

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

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 7eefe7c57698..24c2ad63c629 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -11139,8 +11139,7 @@ SDValue SITargetLowering::performFPRoundCombine(SDNode *N,
     return SDValue();
 
   if (TruncSrc.getOpcode() != AMDGPUISD::FMED3 ||
-      TruncSrc.getValueType() != MVT::f32 || !TruncSrc.hasOneUse() ||
-      !isNullConstant(N->getOperand(1)))
+      TruncSrc.getValueType() != MVT::f32 || !TruncSrc.hasOneUse())
     return SDValue();
 
   SelectionDAG &DAG = DCI.DAG;