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llvm-mirror/lib/Target/AMDGPU/AMDGPU.h
Tom Stellard 518c0f18a8 AMDGPU/SI: Select constant loads with non-uniform addresses to MUBUF instructions
Summary:
We were previously selecting all constant loads to SMRD instructions and legalizing
the SMRDs with non-uniform addresses during the SIFixSGPRCopesPass.

This new solution is more simple and also generates much better code, because
the instruction selector is able to take advantage of all the MUBUF addressing
modes that are legalization pass wasn't able to.

We also no longer need to generate v_add_* instructions when we
have a uniform pointer and a non-uniform offset, as this is now folded into the
MUBUF instruction during instruction selection.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15425

llvm-svn: 255672
2015-12-15 20:55:55 +00:00

157 lines
5.0 KiB
C++

//===-- AMDGPU.h - MachineFunction passes hw codegen --------------*- C++ -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
/// \file
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_R600_AMDGPU_H
#define LLVM_LIB_TARGET_R600_AMDGPU_H
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Target/TargetMachine.h"
namespace llvm {
class AMDGPUInstrPrinter;
class AMDGPUSubtarget;
class AMDGPUTargetMachine;
class FunctionPass;
class MCAsmInfo;
class raw_ostream;
class Target;
class TargetMachine;
// R600 Passes
FunctionPass *createR600VectorRegMerger(TargetMachine &tm);
FunctionPass *createR600TextureIntrinsicsReplacer();
FunctionPass *createR600ExpandSpecialInstrsPass(TargetMachine &tm);
FunctionPass *createR600EmitClauseMarkers();
FunctionPass *createR600ClauseMergePass(TargetMachine &tm);
FunctionPass *createR600Packetizer(TargetMachine &tm);
FunctionPass *createR600ControlFlowFinalizer(TargetMachine &tm);
FunctionPass *createAMDGPUCFGStructurizerPass();
// SI Passes
FunctionPass *createSITypeRewriter();
FunctionPass *createSIAnnotateControlFlowPass();
FunctionPass *createSIFoldOperandsPass();
FunctionPass *createSILowerI1CopiesPass();
FunctionPass *createSIShrinkInstructionsPass();
FunctionPass *createSILoadStoreOptimizerPass(TargetMachine &tm);
FunctionPass *createSILowerControlFlowPass(TargetMachine &tm);
FunctionPass *createSIFixControlFlowLiveIntervalsPass();
FunctionPass *createSIFixSGPRCopiesPass();
FunctionPass *createSIFixSGPRLiveRangesPass();
FunctionPass *createSICodeEmitterPass(formatted_raw_ostream &OS);
FunctionPass *createSIInsertWaits(TargetMachine &tm);
ModulePass *createAMDGPUAnnotateKernelFeaturesPass();
void initializeAMDGPUAnnotateKernelFeaturesPass(PassRegistry &);
extern char &AMDGPUAnnotateKernelFeaturesID;
void initializeSIFoldOperandsPass(PassRegistry &);
extern char &SIFoldOperandsID;
void initializeSIFixSGPRCopiesPass(PassRegistry &);
extern char &SIFixSGPRCopiesID;
void initializeSILowerI1CopiesPass(PassRegistry &);
extern char &SILowerI1CopiesID;
void initializeSILoadStoreOptimizerPass(PassRegistry &);
extern char &SILoadStoreOptimizerID;
// Passes common to R600 and SI
FunctionPass *createAMDGPUPromoteAlloca(const AMDGPUSubtarget &ST);
Pass *createAMDGPUStructurizeCFGPass();
FunctionPass *createAMDGPUISelDag(TargetMachine &tm);
ModulePass *createAMDGPUAlwaysInlinePass();
ModulePass *createAMDGPUOpenCLImageTypeLoweringPass();
FunctionPass *createAMDGPUAnnotateUniformValues();
void initializeSIFixControlFlowLiveIntervalsPass(PassRegistry&);
extern char &SIFixControlFlowLiveIntervalsID;
void initializeSIFixSGPRLiveRangesPass(PassRegistry&);
extern char &SIFixSGPRLiveRangesID;
void initializeAMDGPUAnnotateUniformValuesPass(PassRegistry&);
extern char &AMDGPUAnnotateUniformValuesPassID;
extern Target TheAMDGPUTarget;
extern Target TheGCNTarget;
namespace AMDGPU {
enum TargetIndex {
TI_CONSTDATA_START,
TI_SCRATCH_RSRC_DWORD0,
TI_SCRATCH_RSRC_DWORD1,
TI_SCRATCH_RSRC_DWORD2,
TI_SCRATCH_RSRC_DWORD3
};
}
} // End namespace llvm
namespace ShaderType {
enum Type {
PIXEL = 0,
VERTEX = 1,
GEOMETRY = 2,
COMPUTE = 3
};
}
/// OpenCL uses address spaces to differentiate between
/// various memory regions on the hardware. On the CPU
/// all of the address spaces point to the same memory,
/// however on the GPU, each address space points to
/// a separate piece of memory that is unique from other
/// memory locations.
namespace AMDGPUAS {
enum AddressSpaces : unsigned {
PRIVATE_ADDRESS = 0, ///< Address space for private memory.
GLOBAL_ADDRESS = 1, ///< Address space for global memory (RAT0, VTX0).
CONSTANT_ADDRESS = 2, ///< Address space for constant memory
LOCAL_ADDRESS = 3, ///< Address space for local memory.
FLAT_ADDRESS = 4, ///< Address space for flat memory.
REGION_ADDRESS = 5, ///< Address space for region memory.
PARAM_D_ADDRESS = 6, ///< Address space for direct addressible parameter memory (CONST0)
PARAM_I_ADDRESS = 7, ///< Address space for indirect addressible parameter memory (VTX1)
// Do not re-order the CONSTANT_BUFFER_* enums. Several places depend on this
// order to be able to dynamically index a constant buffer, for example:
//
// ConstantBufferAS = CONSTANT_BUFFER_0 + CBIdx
CONSTANT_BUFFER_0 = 8,
CONSTANT_BUFFER_1 = 9,
CONSTANT_BUFFER_2 = 10,
CONSTANT_BUFFER_3 = 11,
CONSTANT_BUFFER_4 = 12,
CONSTANT_BUFFER_5 = 13,
CONSTANT_BUFFER_6 = 14,
CONSTANT_BUFFER_7 = 15,
CONSTANT_BUFFER_8 = 16,
CONSTANT_BUFFER_9 = 17,
CONSTANT_BUFFER_10 = 18,
CONSTANT_BUFFER_11 = 19,
CONSTANT_BUFFER_12 = 20,
CONSTANT_BUFFER_13 = 21,
CONSTANT_BUFFER_14 = 22,
CONSTANT_BUFFER_15 = 23,
ADDRESS_NONE = 24, ///< Address space for unknown memory.
LAST_ADDRESS = ADDRESS_NONE,
// Some places use this if the address space can't be determined.
UNKNOWN_ADDRESS_SPACE = ~0u
};
} // namespace AMDGPUAS
#endif