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//===-- CGBuilder.h - Choose IRBuilder implementation ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_CODEGEN_CGBUILDER_H
#define LLVM_CLANG_LIB_CODEGEN_CGBUILDER_H
#include "llvm/IR/IRBuilder.h"
namespace clang {
namespace CodeGen {
class CodeGenFunction;
/// \brief This is an IRBuilder insertion helper that forwards to
/// CodeGenFunction::InsertHelper, which adds necessary metadata to
/// instructions.
template <bool PreserveNames>
class CGBuilderInserter
: protected llvm::IRBuilderDefaultInserter<PreserveNames> {
public:
CGBuilderInserter() : CGF(nullptr) {}
explicit CGBuilderInserter(CodeGenFunction *CGF) : CGF(CGF) {}
protected:
/// \brief This forwards to CodeGenFunction::InsertHelper.
void InsertHelper(llvm::Instruction *I, const llvm::Twine &Name,
llvm::BasicBlock *BB,
llvm::BasicBlock::iterator InsertPt) const;
private:
void operator=(const CGBuilderInserter &) = delete;
CodeGenFunction *CGF;
};
// Don't preserve names on values in an optimized build.
#ifdef NDEBUG
#define PreserveNames false
#else
#define PreserveNames true
#endif
typedef CGBuilderInserter<PreserveNames> CGBuilderInserterTy;
typedef llvm::IRBuilder<PreserveNames, llvm::ConstantFolder,
CGBuilderInserterTy> CGBuilderTy;
#undef PreserveNames
} // end namespace CodeGen
} // end namespace clang
#endif
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