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091c043b90
This patch adds a post-linking pass which replaces the function pointer of enqueued block kernel with a global variable (runtime handle) and adds runtime-handle attribute to the enqueued block kernel. In LLVM CodeGen the runtime-handle metadata will be translated to RuntimeHandle metadata in code object. Runtime allocates a global buffer for each kernel with RuntimeHandel metadata and saves the kernel address required for the AQL packet into the buffer. __enqueue_kernel function in device library knows that the invoke function pointer in the block literal is actually runtime handle and loads the kernel address from it and puts it into AQL packet for dispatching. This cannot be done in FE since FE cannot create a unique global variable with external linkage across LLVM modules. The global variable with internal linkage does not work since optimization passes will try to replace loads of the global variable with its initialization value. Differential Revision: https://reviews.llvm.org/D38610 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315352 91177308-0d34-0410-b5e6-96231b3b80d8
264 lines
9.0 KiB
C++
264 lines
9.0 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 LLVM_LIB_TARGET_AMDGPU_AMDGPU_H
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#define LLVM_LIB_TARGET_AMDGPU_AMDGPU_H
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#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
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#include "llvm/Target/TargetMachine.h"
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namespace llvm {
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class AMDGPUTargetMachine;
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class FunctionPass;
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class GCNTargetMachine;
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class ModulePass;
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class Pass;
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class Target;
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class TargetMachine;
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class TargetOptions;
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class PassRegistry;
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class Module;
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// R600 Passes
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FunctionPass *createR600VectorRegMerger();
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FunctionPass *createR600ExpandSpecialInstrsPass();
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FunctionPass *createR600EmitClauseMarkers();
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FunctionPass *createR600ClauseMergePass();
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FunctionPass *createR600Packetizer();
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FunctionPass *createR600ControlFlowFinalizer();
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FunctionPass *createAMDGPUCFGStructurizerPass();
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FunctionPass *createR600ISelDag(TargetMachine *TM, CodeGenOpt::Level OptLevel);
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// SI Passes
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FunctionPass *createSIAnnotateControlFlowPass();
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FunctionPass *createSIFoldOperandsPass();
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FunctionPass *createSIPeepholeSDWAPass();
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FunctionPass *createSILowerI1CopiesPass();
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FunctionPass *createSIShrinkInstructionsPass();
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FunctionPass *createSILoadStoreOptimizerPass();
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FunctionPass *createSIWholeQuadModePass();
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FunctionPass *createSIFixControlFlowLiveIntervalsPass();
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FunctionPass *createSIOptimizeExecMaskingPreRAPass();
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FunctionPass *createSIFixSGPRCopiesPass();
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FunctionPass *createSIMemoryLegalizerPass();
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FunctionPass *createSIDebuggerInsertNopsPass();
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FunctionPass *createSIInsertWaitsPass();
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FunctionPass *createSIInsertWaitcntsPass();
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FunctionPass *createSIFixWWMLivenessPass();
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FunctionPass *createAMDGPUSimplifyLibCallsPass(const TargetOptions &);
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FunctionPass *createAMDGPUUseNativeCallsPass();
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FunctionPass *createAMDGPUCodeGenPreparePass();
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FunctionPass *createAMDGPUMachineCFGStructurizerPass();
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FunctionPass *createAMDGPURewriteOutArgumentsPass();
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void initializeAMDGPUDAGToDAGISelPass(PassRegistry&);
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void initializeAMDGPUMachineCFGStructurizerPass(PassRegistry&);
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extern char &AMDGPUMachineCFGStructurizerID;
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void initializeAMDGPUAlwaysInlinePass(PassRegistry&);
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Pass *createAMDGPUAnnotateKernelFeaturesPass();
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void initializeAMDGPUAnnotateKernelFeaturesPass(PassRegistry &);
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extern char &AMDGPUAnnotateKernelFeaturesID;
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ModulePass *createAMDGPULowerIntrinsicsPass();
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void initializeAMDGPULowerIntrinsicsPass(PassRegistry &);
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extern char &AMDGPULowerIntrinsicsID;
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void initializeAMDGPURewriteOutArgumentsPass(PassRegistry &);
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extern char &AMDGPURewriteOutArgumentsID;
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void initializeR600ClauseMergePassPass(PassRegistry &);
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extern char &R600ClauseMergePassID;
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void initializeR600ControlFlowFinalizerPass(PassRegistry &);
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extern char &R600ControlFlowFinalizerID;
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void initializeR600ExpandSpecialInstrsPassPass(PassRegistry &);
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extern char &R600ExpandSpecialInstrsPassID;
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void initializeR600VectorRegMergerPass(PassRegistry &);
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extern char &R600VectorRegMergerID;
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void initializeR600PacketizerPass(PassRegistry &);
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extern char &R600PacketizerID;
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void initializeSIFoldOperandsPass(PassRegistry &);
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extern char &SIFoldOperandsID;
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void initializeSIPeepholeSDWAPass(PassRegistry &);
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extern char &SIPeepholeSDWAID;
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void initializeSIShrinkInstructionsPass(PassRegistry&);
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extern char &SIShrinkInstructionsID;
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void initializeSIFixSGPRCopiesPass(PassRegistry &);
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extern char &SIFixSGPRCopiesID;
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void initializeSIFixVGPRCopiesPass(PassRegistry &);
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extern char &SIFixVGPRCopiesID;
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void initializeSILowerI1CopiesPass(PassRegistry &);
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extern char &SILowerI1CopiesID;
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void initializeSILoadStoreOptimizerPass(PassRegistry &);
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extern char &SILoadStoreOptimizerID;
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void initializeSIWholeQuadModePass(PassRegistry &);
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extern char &SIWholeQuadModeID;
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void initializeSILowerControlFlowPass(PassRegistry &);
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extern char &SILowerControlFlowID;
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void initializeSIInsertSkipsPass(PassRegistry &);
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extern char &SIInsertSkipsPassID;
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void initializeSIOptimizeExecMaskingPass(PassRegistry &);
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extern char &SIOptimizeExecMaskingID;
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void initializeSIFixWWMLivenessPass(PassRegistry &);
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extern char &SIFixWWMLivenessID;
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void initializeAMDGPUSimplifyLibCallsPass(PassRegistry &);
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extern char &AMDGPUSimplifyLibCallsID;
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void initializeAMDGPUUseNativeCallsPass(PassRegistry &);
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extern char &AMDGPUUseNativeCallsID;
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// Passes common to R600 and SI
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FunctionPass *createAMDGPUPromoteAlloca();
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void initializeAMDGPUPromoteAllocaPass(PassRegistry&);
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extern char &AMDGPUPromoteAllocaID;
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Pass *createAMDGPUStructurizeCFGPass();
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FunctionPass *createAMDGPUISelDag(
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TargetMachine *TM = nullptr,
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CodeGenOpt::Level OptLevel = CodeGenOpt::Default);
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ModulePass *createAMDGPUAlwaysInlinePass(bool GlobalOpt = true);
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ModulePass *createAMDGPUOpenCLImageTypeLoweringPass();
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FunctionPass *createAMDGPUAnnotateUniformValues();
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ModulePass* createAMDGPUUnifyMetadataPass();
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void initializeAMDGPUUnifyMetadataPass(PassRegistry&);
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extern char &AMDGPUUnifyMetadataID;
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void initializeSIOptimizeExecMaskingPreRAPass(PassRegistry&);
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extern char &SIOptimizeExecMaskingPreRAID;
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void initializeAMDGPUAnnotateUniformValuesPass(PassRegistry&);
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extern char &AMDGPUAnnotateUniformValuesPassID;
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void initializeAMDGPUCodeGenPreparePass(PassRegistry&);
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extern char &AMDGPUCodeGenPrepareID;
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void initializeSIAnnotateControlFlowPass(PassRegistry&);
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extern char &SIAnnotateControlFlowPassID;
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void initializeSIMemoryLegalizerPass(PassRegistry&);
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extern char &SIMemoryLegalizerID;
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void initializeSIDebuggerInsertNopsPass(PassRegistry&);
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extern char &SIDebuggerInsertNopsID;
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void initializeSIInsertWaitsPass(PassRegistry&);
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extern char &SIInsertWaitsID;
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void initializeSIInsertWaitcntsPass(PassRegistry&);
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extern char &SIInsertWaitcntsID;
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void initializeAMDGPUUnifyDivergentExitNodesPass(PassRegistry&);
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extern char &AMDGPUUnifyDivergentExitNodesID;
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ImmutablePass *createAMDGPUAAWrapperPass();
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void initializeAMDGPUAAWrapperPassPass(PassRegistry&);
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void initializeAMDGPUArgumentUsageInfoPass(PassRegistry &);
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Pass *createAMDGPUFunctionInliningPass();
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void initializeAMDGPUInlinerPass(PassRegistry&);
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ModulePass *createAMDGPUOpenCLEnqueuedBlockLoweringPass();
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void initializeAMDGPUOpenCLEnqueuedBlockLoweringPass(PassRegistry &);
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extern char &AMDGPUOpenCLEnqueuedBlockLoweringID;
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Target &getTheAMDGPUTarget();
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Target &getTheGCNTarget();
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namespace AMDGPU {
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enum TargetIndex {
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TI_CONSTDATA_START,
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TI_SCRATCH_RSRC_DWORD0,
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TI_SCRATCH_RSRC_DWORD1,
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TI_SCRATCH_RSRC_DWORD2,
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TI_SCRATCH_RSRC_DWORD3
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};
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}
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} // End namespace llvm
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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 separate piece of memory that is unique from other
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/// memory locations.
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struct AMDGPUAS {
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// The following address space values depend on the triple environment.
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unsigned PRIVATE_ADDRESS; ///< Address space for private memory.
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unsigned FLAT_ADDRESS; ///< Address space for flat memory.
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unsigned REGION_ADDRESS; ///< Address space for region memory.
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// The maximum value for flat, generic, local, private, constant and region.
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const static unsigned MAX_COMMON_ADDRESS = 5;
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const static unsigned GLOBAL_ADDRESS = 1; ///< Address space for global memory (RAT0, VTX0).
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const static unsigned CONSTANT_ADDRESS = 2; ///< Address space for constant memory (VTX2)
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const static unsigned LOCAL_ADDRESS = 3; ///< Address space for local memory.
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const static unsigned PARAM_D_ADDRESS = 6; ///< Address space for direct addressible parameter memory (CONST0)
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const static unsigned 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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const static unsigned CONSTANT_BUFFER_0 = 8;
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const static unsigned CONSTANT_BUFFER_1 = 9;
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const static unsigned CONSTANT_BUFFER_2 = 10;
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const static unsigned CONSTANT_BUFFER_3 = 11;
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const static unsigned CONSTANT_BUFFER_4 = 12;
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const static unsigned CONSTANT_BUFFER_5 = 13;
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const static unsigned CONSTANT_BUFFER_6 = 14;
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const static unsigned CONSTANT_BUFFER_7 = 15;
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const static unsigned CONSTANT_BUFFER_8 = 16;
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const static unsigned CONSTANT_BUFFER_9 = 17;
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const static unsigned CONSTANT_BUFFER_10 = 18;
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const static unsigned CONSTANT_BUFFER_11 = 19;
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const static unsigned CONSTANT_BUFFER_12 = 20;
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const static unsigned CONSTANT_BUFFER_13 = 21;
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const static unsigned CONSTANT_BUFFER_14 = 22;
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const static unsigned CONSTANT_BUFFER_15 = 23;
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// Some places use this if the address space can't be determined.
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const static unsigned UNKNOWN_ADDRESS_SPACE = ~0u;
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};
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namespace llvm {
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namespace AMDGPU {
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AMDGPUAS getAMDGPUAS(const Module &M);
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AMDGPUAS getAMDGPUAS(const TargetMachine &TM);
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AMDGPUAS getAMDGPUAS(Triple T);
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} // namespace AMDGPU
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} // namespace llvm
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#endif
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