mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
15d004efaa
R600 and GCN do not have anything in common in terms of register file organization anymore. Differential Revision: https://reviews.llvm.org/D74426
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
//===-- AMDGPUInstrInfo.cpp - Base class for AMD GPU InstrInfo ------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
/// \file
|
|
/// \brief Implementation of the TargetInstrInfo class that is common to all
|
|
/// AMD GPUs.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "AMDGPUInstrInfo.h"
|
|
#include "AMDGPUTargetMachine.h"
|
|
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
|
|
#include "llvm/CodeGen/MachineFrameInfo.h"
|
|
#include "llvm/CodeGen/MachineInstrBuilder.h"
|
|
#include "llvm/CodeGen/MachineRegisterInfo.h"
|
|
|
|
using namespace llvm;
|
|
|
|
// Pin the vtable to this file.
|
|
//void AMDGPUInstrInfo::anchor() {}
|
|
|
|
AMDGPUInstrInfo::AMDGPUInstrInfo(const GCNSubtarget &ST) { }
|
|
|
|
|
|
// TODO: Should largely merge with AMDGPUTTIImpl::isSourceOfDivergence.
|
|
bool AMDGPUInstrInfo::isUniformMMO(const MachineMemOperand *MMO) {
|
|
const Value *Ptr = MMO->getValue();
|
|
// UndefValue means this is a load of a kernel input. These are uniform.
|
|
// Sometimes LDS instructions have constant pointers.
|
|
// If Ptr is null, then that means this mem operand contains a
|
|
// PseudoSourceValue like GOT.
|
|
if (!Ptr || isa<UndefValue>(Ptr) ||
|
|
isa<Constant>(Ptr) || isa<GlobalValue>(Ptr))
|
|
return true;
|
|
|
|
if (MMO->getAddrSpace() == AMDGPUAS::CONSTANT_ADDRESS_32BIT)
|
|
return true;
|
|
|
|
if (const Argument *Arg = dyn_cast<Argument>(Ptr))
|
|
return AMDGPU::isArgPassedInSGPR(Arg);
|
|
|
|
const Instruction *I = dyn_cast<Instruction>(Ptr);
|
|
return I && I->getMetadata("amdgpu.uniform");
|
|
}
|