forked from OSchip/llvm-project
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
//===-- CGBuilder.h - Choose IRBuilder implementation ----------*- 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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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_CODEGEN_CGBUILDER_H
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#define LLVM_CLANG_LIB_CODEGEN_CGBUILDER_H
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#include "llvm/IR/IRBuilder.h"
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namespace clang {
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namespace CodeGen {
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class CodeGenFunction;
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/// \brief This is an IRBuilder insertion helper that forwards to
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/// CodeGenFunction::InsertHelper, which adds nesessary metadata to
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/// instructions.
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template <bool PreserveNames>
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class CGBuilderInserter
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: protected llvm::IRBuilderDefaultInserter<PreserveNames> {
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public:
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CGBuilderInserter() : CGF(nullptr) {}
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explicit CGBuilderInserter(CodeGenFunction *CGF) : CGF(CGF) {}
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protected:
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/// \brief This forwards to CodeGenFunction::InsertHelper.
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void InsertHelper(llvm::Instruction *I, const llvm::Twine &Name,
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llvm::BasicBlock *BB,
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llvm::BasicBlock::iterator InsertPt) const;
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private:
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void operator=(const CGBuilderInserter &) LLVM_DELETED_FUNCTION;
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CodeGenFunction *CGF;
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};
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// Don't preserve names on values in an optimized build.
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#ifdef NDEBUG
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#define PreserveNames false
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#else
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#define PreserveNames true
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#endif
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typedef CGBuilderInserter<PreserveNames> CGBuilderInserterTy;
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typedef llvm::IRBuilder<PreserveNames, llvm::ConstantFolder,
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CGBuilderInserterTy> CGBuilderTy;
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#undef PreserveNames
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} // end namespace CodeGen
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} // end namespace clang
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#endif
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