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04c559569f
The AMDGPUIndirectAddressing pass was previously responsible for lowering private loads and stores to indirect addressing instructions. However, this pass was buggy and way too complicated. The only advantage it had over the new simplified code was that it saved one instruction per direct write to private memory. This optimization likely has a minimal impact on performance, and we may be able to duplicate it using some other transformation. For the private address space, we now: 1. Lower private loads/store to Register(Load|Store) instructions 2. Reserve part of the register file as 'private memory' 3. After regalloc lower the Register(Load|Store) instructions to MOV instructions that use indirect addressing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193179 91177308-0d34-0410-b5e6-96231b3b80d8
111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
//===-- AMDGPU.h - MachineFunction passes hw codegen --------------*- C++ -*-=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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/// \file
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//===----------------------------------------------------------------------===//
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#ifndef AMDGPU_H
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#define AMDGPU_H
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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class AMDGPUInstrPrinter;
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class AMDGPUTargetMachine;
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class FunctionPass;
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class MCAsmInfo;
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class raw_ostream;
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class Target;
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class TargetMachine;
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// R600 Passes
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FunctionPass *createR600VectorRegMerger(TargetMachine &tm);
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FunctionPass *createR600TextureIntrinsicsReplacer();
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FunctionPass *createR600ExpandSpecialInstrsPass(TargetMachine &tm);
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FunctionPass *createR600EmitClauseMarkers(TargetMachine &tm);
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FunctionPass *createR600ClauseMergePass(TargetMachine &tm);
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FunctionPass *createR600Packetizer(TargetMachine &tm);
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FunctionPass *createR600ControlFlowFinalizer(TargetMachine &tm);
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FunctionPass *createAMDGPUCFGStructurizerPass(TargetMachine &tm);
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// SI Passes
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FunctionPass *createSITypeRewriter();
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FunctionPass *createSIAnnotateControlFlowPass();
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FunctionPass *createSILowerControlFlowPass(TargetMachine &tm);
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FunctionPass *createSIFixSGPRCopiesPass(TargetMachine &tm);
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FunctionPass *createSICodeEmitterPass(formatted_raw_ostream &OS);
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FunctionPass *createSIInsertWaits(TargetMachine &tm);
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// Passes common to R600 and SI
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Pass *createAMDGPUStructurizeCFGPass();
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FunctionPass *createAMDGPUConvertToISAPass(TargetMachine &tm);
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FunctionPass *createAMDGPUISelDag(TargetMachine &tm);
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/// \brief Creates an AMDGPU-specific Target Transformation Info pass.
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ImmutablePass *
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createAMDGPUTargetTransformInfoPass(const AMDGPUTargetMachine *TM);
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extern Target TheAMDGPUTarget;
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} // End namespace llvm
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namespace ShaderType {
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enum Type {
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PIXEL = 0,
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VERTEX = 1,
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GEOMETRY = 2,
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COMPUTE = 3
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};
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}
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/// OpenCL uses address spaces to differentiate between
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/// various memory regions on the hardware. On the CPU
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/// all of the address spaces point to the same memory,
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/// however on the GPU, each address space points to
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/// a seperate piece of memory that is unique from other
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/// memory locations.
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namespace AMDGPUAS {
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enum AddressSpaces {
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PRIVATE_ADDRESS = 0, ///< Address space for private memory.
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GLOBAL_ADDRESS = 1, ///< Address space for global memory (RAT0, VTX0).
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CONSTANT_ADDRESS = 2, ///< Address space for constant memory
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LOCAL_ADDRESS = 3, ///< Address space for local memory.
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REGION_ADDRESS = 4, ///< Address space for region memory.
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ADDRESS_NONE = 5, ///< Address space for unknown memory.
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PARAM_D_ADDRESS = 6, ///< Address space for direct addressible parameter memory (CONST0)
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PARAM_I_ADDRESS = 7, ///< Address space for indirect addressible parameter memory (VTX1)
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// Do not re-order the CONSTANT_BUFFER_* enums. Several places depend on this
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// order to be able to dynamically index a constant buffer, for example:
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//
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// ConstantBufferAS = CONSTANT_BUFFER_0 + CBIdx
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CONSTANT_BUFFER_0 = 8,
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CONSTANT_BUFFER_1 = 9,
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CONSTANT_BUFFER_2 = 10,
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CONSTANT_BUFFER_3 = 11,
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CONSTANT_BUFFER_4 = 12,
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CONSTANT_BUFFER_5 = 13,
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CONSTANT_BUFFER_6 = 14,
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CONSTANT_BUFFER_7 = 15,
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CONSTANT_BUFFER_8 = 16,
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CONSTANT_BUFFER_9 = 17,
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CONSTANT_BUFFER_10 = 18,
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CONSTANT_BUFFER_11 = 19,
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CONSTANT_BUFFER_12 = 20,
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CONSTANT_BUFFER_13 = 21,
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CONSTANT_BUFFER_14 = 22,
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CONSTANT_BUFFER_15 = 23,
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LAST_ADDRESS = 24
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};
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} // namespace AMDGPUAS
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#endif // AMDGPU_H
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