diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp index 187137be4b1..d0f12678204 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp +++ b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp @@ -2898,28 +2898,6 @@ SDValue AMDGPUTargetLowering::performStoreCombine(SDNode *N, SN->getBasePtr(), SN->getMemOperand()); } -SDValue AMDGPUTargetLowering::performClampCombine(SDNode *N, - DAGCombinerInfo &DCI) const { - ConstantFPSDNode *CSrc = dyn_cast<ConstantFPSDNode>(N->getOperand(0)); - if (!CSrc) - return SDValue(); - - const APFloat &F = CSrc->getValueAPF(); - APFloat Zero = APFloat::getZero(F.getSemantics()); - APFloat::cmpResult Cmp0 = F.compare(Zero); - if (Cmp0 == APFloat::cmpLessThan || - (Cmp0 == APFloat::cmpUnordered && Subtarget->enableDX10Clamp())) { - return DCI.DAG.getConstantFP(Zero, SDLoc(N), N->getValueType(0)); - } - - APFloat One(F.getSemantics(), "1.0"); - APFloat::cmpResult Cmp1 = F.compare(One); - if (Cmp1 == APFloat::cmpGreaterThan) - return DCI.DAG.getConstantFP(One, SDLoc(N), N->getValueType(0)); - - return SDValue(CSrc, 0); -} - // FIXME: This should go in generic DAG combiner with an isTruncateFree check, // but isTruncateFree is inaccurate for i16 now because of SALU vs. VALU // issues. @@ -3960,8 +3938,6 @@ SDValue AMDGPUTargetLowering::PerformDAGCombine(SDNode *N, return performLoadCombine(N, DCI); case ISD::STORE: return performStoreCombine(N, DCI); - case AMDGPUISD::CLAMP: - return performClampCombine(N, DCI); case AMDGPUISD::RCP: { if (const auto *CFP = dyn_cast<ConstantFPSDNode>(N->getOperand(0))) { // XXX - Should this flush denormals? |
