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Diffstat (limited to 'clang-r353983/include/llvm/CodeGen/AsmPrinterHandler.h')
| -rw-r--r-- | clang-r353983/include/llvm/CodeGen/AsmPrinterHandler.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/clang-r353983/include/llvm/CodeGen/AsmPrinterHandler.h b/clang-r353983/include/llvm/CodeGen/AsmPrinterHandler.h new file mode 100644 index 00000000..affb558f --- /dev/null +++ b/clang-r353983/include/llvm/CodeGen/AsmPrinterHandler.h @@ -0,0 +1,73 @@ +//===-- llvm/CodeGen/AsmPrinterHandler.h -----------------------*- C++ -*--===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file contains a generic interface for AsmPrinter handlers, +// like debug and EH info emitters. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CODEGEN_ASMPRINTERHANDLER_H +#define LLVM_CODEGEN_ASMPRINTERHANDLER_H + +#include "llvm/Support/DataTypes.h" + +namespace llvm { + +class AsmPrinter; +class MachineBasicBlock; +class MachineFunction; +class MachineInstr; +class MCSymbol; + +typedef MCSymbol *ExceptionSymbolProvider(AsmPrinter *Asm); + +/// Collects and handles AsmPrinter objects required to build debug +/// or EH information. +class AsmPrinterHandler { +public: + virtual ~AsmPrinterHandler(); + + /// For symbols that have a size designated (e.g. common symbols), + /// this tracks that size. + virtual void setSymbolSize(const MCSymbol *Sym, uint64_t Size) = 0; + + /// Emit all sections that should come after the content. + virtual void endModule() = 0; + + /// Gather pre-function debug information. + /// Every beginFunction(MF) call should be followed by an endFunction(MF) + /// call. + virtual void beginFunction(const MachineFunction *MF) = 0; + + // Emit any of function marker (like .cfi_endproc). This is called + // before endFunction and cannot switch sections. + virtual void markFunctionEnd(); + + /// Gather post-function debug information. + /// Please note that some AsmPrinter implementations may not call + /// beginFunction at all. + virtual void endFunction(const MachineFunction *MF) = 0; + + virtual void beginFragment(const MachineBasicBlock *MBB, + ExceptionSymbolProvider ESP) {} + virtual void endFragment() {} + + /// Emit target-specific EH funclet machinery. + virtual void beginFunclet(const MachineBasicBlock &MBB, + MCSymbol *Sym = nullptr) {} + virtual void endFunclet() {} + + /// Process beginning of an instruction. + virtual void beginInstruction(const MachineInstr *MI) = 0; + + /// Process end of an instruction. + virtual void endInstruction() = 0; +}; +} // End of namespace llvm + +#endif |
