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9769ab2226
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21408 91177308-0d34-0410-b5e6-96231b3b80d8
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
//===-- AsmAnnotationWriter.h - Itf for annotation .ll files - --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Clients of the assembly writer can use this interface to add their own
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// special-purpose annotations to LLVM assembly language printouts. Note that
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// the assembly parser won't be able to parse these, in general, so
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// implementations are advised to print stuff as LLVM comments.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ASSEMBLY_ASMANNOTATIONWRITER_H
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#define LLVM_ASSEMBLY_ASMANNOTATIONWRITER_H
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#include <iosfwd>
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namespace llvm {
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class Function;
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class BasicBlock;
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class Instruction;
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struct AssemblyAnnotationWriter {
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// emitFunctionAnnot - This may be implemented to emit a string right before
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// the start of a function.
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virtual void emitFunctionAnnot(const Function *F, std::ostream &OS) {}
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// emitBasicBlockStartAnnot - This may be implemented to emit a string right
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// after the basic block label, but before the first instruction in the block.
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virtual void emitBasicBlockStartAnnot(const BasicBlock *BB, std::ostream &OS){
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}
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// emitBasicBlockEndAnnot - This may be implemented to emit a string right
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// after the basic block.
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virtual void emitBasicBlockEndAnnot(const BasicBlock *BB, std::ostream &OS){
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}
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// emitInstructionAnnot - This may be implemented to emit a string right
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// before an instruction is emitted.
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virtual void emitInstructionAnnot(const Instruction *I, std::ostream &OS) {}
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};
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} // End llvm namespace
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#endif
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