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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
///=======================================================================================
/// This file contains types, enumerations, classes and other declarations used by
/// the IGC IR Verification Pass.
#pragma once
#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/IR/InstVisitor.h>
#include <llvm/ADT/StringRef.h>
#include <llvm/ADT/ArrayRef.h>
#include "llvm/Support/raw_ostream.h"
#include "common/LLVMWarningsPop.hpp"
#include "GenISAIntrinsics/GenIntrinsicInst.h"
#include <set>
#include <vector>
namespace IGC {
enum class IRSpecObjectClass { Instruction, GenISAIntrinsic, Intrinsic };
class VerificationPass : public llvm::ModulePass {
public:
// Pass identification, replacement for typeid
static char ID;
/// @brief Constructor
VerificationPass();
/// Destructor
~VerificationPass() {}
/// @brief Provides name of pass
virtual llvm::StringRef getPassName() const override { return "VerificationPass"; }
/// Entry point of the pass.
virtual bool runOnModule(llvm::Module &M) override;
protected:
// Module
llvm::Module *m_Module;
// String for collecting verification error messages.
std::string m_str;
// Stream interface for m_str
llvm::raw_string_ostream m_messagesToDump;
/// This structure contains sets of valid IGC IR objects
/// such as types, intrinsic functions, etc.
struct {
std::set<unsigned int> FPTypeSizes;
std::set<unsigned int> vectorTypeSizes;
std::set<unsigned int> Instructions;
std::set<llvm::Intrinsic::ID> IGCLLVMIntrinsics; // LLVM intrinsics supported by IGC
} m_IGC_IR_spec;
/// Initialization of the pass data
void initVerificationPass();
void addIRSpecObject(IRSpecObjectClass objClass, unsigned int ID);
/// Verification of the function and its content.
bool verifyFunction(llvm::Function &F);
/// Verification of instruction.
bool verifyInstruction(llvm::Instruction &inst);
/// Common verification function that is executed
/// for all types of instructions.
bool verifyInstCommon(llvm::Instruction &inst);
///------------------------------------------------------
/// Instruction verification functions for specific
/// types of instructions should be declared here.
///------------------------------------------------------
/// Specific verification function for Call instructions.
bool verifyInstCall(llvm::Instruction &inst);
/// Specific verification function for insert/extract instructions.
bool verifyVectorInst(llvm::Instruction &inst);
///------------------------------------------------------
/// Verification of values
bool verifyValue(llvm::Value *val);
/// Verification of type
bool verifyType(llvm::Type *type, llvm::Value *val);
/// Dumps the verification errors.
void dumpMessages(llvm::Module &M);
/// Prints the LLVM value into m_messagesToDump text stream.
void printValue(llvm::Value *value);
};
} // namespace IGC
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