diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIISelLowering.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp index fb166d7c7cd..612e63048d3 100644 --- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp +++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp @@ -3410,9 +3410,11 @@ SDValue SITargetLowering::lowerFastUnsafeFDIV(SDValue Op, EVT VT = Op.getValueType(); bool Unsafe = DAG.getTarget().Options.UnsafeFPMath; + if (!Unsafe && VT == MVT::f32 && Subtarget->hasFP32Denormals()) + return SDValue(); + if (const ConstantFPSDNode *CLHS = dyn_cast<ConstantFPSDNode>(LHS)) { - if (Unsafe || (VT == MVT::f32 && !Subtarget->hasFP32Denormals()) || - VT == MVT::f16) { + if (Unsafe || VT == MVT::f32 || VT == MVT::f16) { if (CLHS->isExactlyValue(1.0)) { // v_rcp_f32 and v_rsq_f32 do not support denormals, and according to // the CI documentation has a worst case error of 1 ulp. |
