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R600: Fix input modifiers lost for Cayman

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196922 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vincent Lejeune 2013-12-10 14:43:27 +00:00
parent 526522728c
commit 8ff689b443
2 changed files with 44 additions and 0 deletions
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18
lib/Target/R600/R600ExpandSpecialInstrs.cpp
View File

@ -33,6 +33,9 @@ private:
static char ID;
const R600InstrInfo *TII;
void SetFlagInNewMI(MachineInstr *NewMI, const MachineInstr *OldMI,
unsigned Op);
public:
R600ExpandSpecialInstrsPass(TargetMachine &tm) : MachineFunctionPass(ID),
TII(0) { }
@ -52,6 +55,15 @@ FunctionPass *llvm::createR600ExpandSpecialInstrsPass(TargetMachine &TM) {
return new R600ExpandSpecialInstrsPass(TM);
}
void R600ExpandSpecialInstrsPass::SetFlagInNewMI(MachineInstr *NewMI,
const MachineInstr *OldMI, unsigned Op) {
int OpIdx = TII->getOperandIdx(*OldMI, Op);
if (OpIdx > -1) {
uint64_t Val = OldMI->getOperand(OpIdx).getImm();
TII->setImmOperand(NewMI, Op, Val);
}
}
bool R600ExpandSpecialInstrsPass::runOnMachineFunction(MachineFunction &MF) {
TII = static_cast<const R600InstrInfo *>(MF.getTarget().getInstrInfo());
@ -322,6 +334,12 @@ bool R600ExpandSpecialInstrsPass::runOnMachineFunction(MachineFunction &MF) {
if (NotLast) {
TII->addFlag(NewMI, 0, MO_FLAG_NOT_LAST);
}
SetFlagInNewMI(NewMI, &MI, AMDGPU::OpName::clamp);
SetFlagInNewMI(NewMI, &MI, AMDGPU::OpName::literal);
SetFlagInNewMI(NewMI, &MI, AMDGPU::OpName::src0_abs);
SetFlagInNewMI(NewMI, &MI, AMDGPU::OpName::src1_abs);
SetFlagInNewMI(NewMI, &MI, AMDGPU::OpName::src0_neg);
SetFlagInNewMI(NewMI, &MI, AMDGPU::OpName::src1_neg);
}
MI.eraseFromParent();
}

26
test/CodeGen/R600/llvm.exp2.ll Normal file
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@ -0,0 +1,26 @@
;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=EG-CHECK
;RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s --check-prefix=CM-CHECK
;EG-CHECK-LABEL: @test
;EG-CHECK: EXP_IEEE *
;CM-CHECK-LABEL: @test
;CM-CHECK: EXP_IEEE T{{[0-9]+}}.X, -|T{{[0-9]+}}.X|
;CM-CHECK: EXP_IEEE T{{[0-9]+}}.Y (MASKED), -|T{{[0-9]+}}.X|
;CM-CHECK: EXP_IEEE T{{[0-9]+}}.Z (MASKED), -|T{{[0-9]+}}.X|
;CM-CHECK: EXP_IEEE * T{{[0-9]+}}.W (MASKED), -|T{{[0-9]+}}.X|
define void @test(<4 x float> inreg %reg0) #0 {
%r0 = extractelement <4 x float> %reg0, i32 0
%r1 = call float @llvm.fabs.f32(float %r0)
%r2 = fsub float -0.000000e+00, %r1
%r3 = call float @llvm.exp2.f32(float %r2)
%vec = insertelement <4 x float> undef, float %r3, i32 0
call void @llvm.R600.store.swizzle(<4 x float> %vec, i32 0, i32 0)
ret void
}
declare float @llvm.exp2.f32(float) readnone
declare float @llvm.fabs.f32(float) readnone
declare void @llvm.R600.store.swizzle(<4 x float>, i32, i32)
attributes #0 = { "ShaderType"="0" }