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AMDGPU: Replace list of SMEM buffer opcodes 

llvm-svn: 318506
This commit is contained in:
Matt Arsenault 2017-11-17 04:18:26 +00:00
parent 03c67d1eb2
commit 4512d0a68b
2 changed files with 14 additions and 10 deletions
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11
llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp
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@ -341,16 +341,7 @@ int GCNHazardRecognizer::checkSMRDHazards(MachineInstr *SMRD) {
auto IsHazardDefFn = [this] (MachineInstr *MI) { return TII.isVALU(*MI); };
auto IsBufferHazardDefFn = [this] (MachineInstr *MI) { return TII.isSALU(*MI); };
bool IsBufferSMRD = SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORD_IMM ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORDX2_IMM ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORDX4_IMM ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORDX8_IMM ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORDX16_IMM ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORD_SGPR ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORDX2_SGPR ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORDX4_SGPR ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORDX8_SGPR ||
SMRD->getOpcode() == AMDGPU::S_BUFFER_LOAD_DWORDX16_SGPR;
bool IsBufferSMRD = TII.isBufferSMRD(*SMRD);
for (const MachineOperand &Use : SMRD->uses()) {
if (!Use.isReg())

13
llvm/lib/Target/AMDGPU/SIInstrInfo.h
View File

@ -416,6 +416,19 @@ public:
return get(Opcode).TSFlags & SIInstrFlags::SMRD;
}
bool isBufferSMRD(const MachineInstr &MI) const {
if (!isSMRD(MI))
return false;
// Check that it is using a buffer resource.
int Idx = AMDGPU::getNamedOperandIdx(MI.getOpcode(), AMDGPU::OpName::sbase);
if (Idx == -1) // e.g. s_memtime
return false;
const auto RCID = MI.getDesc().OpInfo[Idx].RegClass;
return RCID == AMDGPU::SReg_128RegClassID;
}
static bool isDS(const MachineInstr &MI) {
return MI.getDesc().TSFlags & SIInstrFlags::DS;
}