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AMDGPU: Check nsz instead of unsafe math 

llvm-svn: 293028
This commit is contained in:
Matt Arsenault 2017-01-25 06:27:02 +00:00
parent 14aa59ac49
commit 74a576e7d3
3 changed files with 4 additions and 4 deletions
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2
llvm/lib/Target/AMDGPU/AMDGPUISelLowering.h
View File

@ -120,7 +120,7 @@ public:
AMDGPUTargetLowering(const TargetMachine &TM, const AMDGPUSubtarget &STI);
bool mayIgnoreSignedZero(SDValue Op) const {
if (getTargetMachine().Options.UnsafeFPMath) // FIXME: nsz only
if (getTargetMachine().Options.NoSignedZerosFPMath)
return true;
if (const auto *BO = dyn_cast<BinaryWithFlagsSDNode>(Op))

2
llvm/test/CodeGen/AMDGPU/fneg-combines.ll
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@ -1,5 +1,5 @@
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GCN-SAFE -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -enable-unsafe-fp-math -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GCN-NSZ -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -enable-no-signed-zeros-fp-math -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=GCN-NSZ -check-prefix=SI -check-prefix=FUNC %s
; --------------------------------------------------------------------------------
; fadd tests

4
llvm/test/CodeGen/AMDGPU/select-fabs-fneg-extract.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
; RUN: llc -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs -enable-no-signed-zeros-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
; RUN: llc -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs -enable-no-signed-zeros-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
; GCN-LABEL: {{^}}add_select_fabs_fabs_f32:
; GCN: buffer_load_dword [[X:v[0-9]+]]