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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include "AdaptorCommon/ImplicitArgs.hpp"
#include "Compiler/MetaDataUtilsWrapper.h"
#include "Compiler/CISACodeGen/GenCodeGenModule.h"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/IR/InstVisitor.h>
#include "common/LLVMWarningsPop.hpp"
namespace IGC
{
class WIFuncsAnalysis;
/// @brief WIFuncResolution pass used for resolving OpenCL WI (work item) functions.
/// This pass depends on the WIFuncAnalysis and AddImplicitArgs passes running before it
class WIFuncResolution : public llvm::FunctionPass, public llvm::InstVisitor<WIFuncResolution>
{
public:
// Pass identification, replacement for typeid
static char ID;
/// @brief Constructor
WIFuncResolution();
/// @brief Destructor
~WIFuncResolution() {}
/// @brief Provides name of pass
virtual llvm::StringRef getPassName() const override
{
return "WIFuncResolution";
}
void getAnalysisUsage(llvm::AnalysisUsage& AU) const override
{
AU.addRequired<MetaDataUtilsWrapper>();
AU.addRequired<CodeGenContextWrapper>();
}
/// @brief Main entry point.
/// Finds all OpenCL WI (Work item) function calls and resolve them into an llvm sequence
/// @param F The destination function.
virtual bool runOnFunction(llvm::Function& F) override;
/// @brief Call instructions visitor.
/// Checks for OpenCL WI functions and resolves them into appropriate sequence of code
/// @param CI The call instruction.
void visitCallInst(llvm::CallInst& CI);
private:
/// @brief Resolves get_local_id(dim).
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @param argType The type of the appropriate implicit arg.
/// @return A value representing the local id
llvm::Value* getLocalId(llvm::CallInst& CI, ImplicitArg::ArgType argType);
/// @brief Resolves get_group_id(dim).
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the group id
llvm::Value* getGroupId(llvm::CallInst& CI);
/// @brief Resolves get_local_thread_id(dim).
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the local thread id
llvm::Value* getLocalThreadId(llvm::CallInst &CI);
/// @brief Resolves get_global_size(dim).
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the global size
llvm::Value* getGlobalSize(llvm::CallInst& CI);
/// @brief Resolves get_local_size(dim).
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the local size
llvm::Value* getLocalSize(llvm::CallInst& CI);
/// @brief Resolves get_enqueued_local_size(dim).
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the enqueued local size
llvm::Value* getEnqueuedLocalSize(llvm::CallInst& CI);
/// @brief Resolves get_global_offset(dim).
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the global offset
llvm::Value* getGlobalOffset(llvm::CallInst& CI);
/// @brief Resolves get_work_dim().
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the work dimension
llvm::Value* getWorkDim(llvm::CallInst& CI);
/// @brief Resolves get_num_groups(dim).
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the number of work groups
llvm::Value* getNumGroups(llvm::CallInst& CI);
/// @brief Resolves get_stage_in_grid_origin().
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the stage in grid origin
llvm::Value* getStageInGridOrigin(llvm::CallInst& CI);
/// @brief Resolves get_stage_in_grid_size().
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the stage in grid size
llvm::Value* getStageInGridSize(llvm::CallInst& CI);
/// @brief Resolves get_sync_buffer().
/// Adds the appropriate sequence of code before the given call instruction
/// @param CI The call instruction.
/// @return A value representing the sync buffer
llvm::Value* getSyncBufferPtr(llvm::CallInst& CI);
/// @brief The implicit arguments of the current function
ImplicitArgs m_implicitArgs;
/// @brief Emit intrinsics to store implicit buffer
/// pointer and local id pointer.
/// @param Function to add intrinsics to. This has to be
/// an entry level, ie kernel function.
void storeImplicitBufferPtrs(llvm::Function& F);
private:
/// @brief Indicates if the pass changed the processed function
bool m_changed = false;
IGCMD::MetaDataUtils* m_pMdUtils = nullptr;
};
} // namespace IGC
namespace IGC
{
class LowerImplicitArgIntrinsics : public llvm::FunctionPass, public llvm::InstVisitor<LowerImplicitArgIntrinsics>
{
public:
static char ID;
LowerImplicitArgIntrinsics();
~LowerImplicitArgIntrinsics() {}
virtual llvm::StringRef getPassName() const override
{
return "LowerImplicitArgIntrinsics";
}
void getAnalysisUsage(llvm::AnalysisUsage& AU) const override
{
AU.addRequired<MetaDataUtilsWrapper>();
AU.addRequired<CodeGenContextWrapper>();
}
virtual bool runOnFunction(llvm::Function& F) override;
void visitCallInst(llvm::CallInst& CI);
private:
GenXFunctionGroupAnalysis* m_FGA = nullptr;
IGC::CodeGenContext* m_ctx = nullptr;
std::map<llvm::GenISAIntrinsic::ID, llvm::Instruction*> usedIntrinsicsMap;
llvm::Value* BuildLoadInst(llvm::CallInst& CI, unsigned int Offset, llvm::Type* DataType);
llvm::Value* getIntrinsicCall(llvm::Function* F, llvm::GenISAIntrinsic::ID IntrinsicID, llvm::Type* DataType);
};
} // namespace IGC
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