From 1cd1444449cb68e2091e8f36785403288ebd3326 Mon Sep 17 00:00:00 2001
From: Timur Iskhodzhanov <timurrrr@google.com>
Date: Tue, 3 Dec 2013 15:10:23 +0000
Subject: Reland 196270 "Generalize debug info / EH emission in AsmPrinter"

Addressing the existense AMDGPUAsmPrinter and other subclasses of AsmPrinter

llvm-svn: 196288
---
 llvm/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h | 56 +++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 llvm/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h

(limited to 'llvm/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h')

diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h
new file mode 100644
index 00000000000..8e8ff1079d0
--- /dev/null
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h
@@ -0,0 +1,56 @@
+//===-- lib/CodeGen/AsmPrinter/AsmPrinterHandler.h -------------*- C++ -*--===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains a generic interface for AsmPrinter handlers,
+// like debug and EH info emitters.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H__
+#define CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H__
+
+#include "llvm/Support/DataTypes.h"
+
+namespace llvm {
+
+class MachineFunction;
+class MachineInstr;
+class MCSymbol;
+
+/// \brief Collects and handles AsmPrinter objects required to build debug
+/// or EH information.
+class AsmPrinterHandler {
+public:
+  virtual ~AsmPrinterHandler() {}
+
+  /// \brief 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;
+
+  /// \brief Emit all sections that should come after the content.
+  virtual void endModule() = 0;
+
+  /// \brief Gather pre-function debug information.
+  /// Every beginFunction(MF) call should be followed by an endFunction(MF) call.
+  virtual void beginFunction(const MachineFunction *MF) = 0;
+
+  /// \brief Gather post-function debug information.
+  /// Please note that some AsmPrinter implementationss may not call
+  /// beginFunction at all.
+  virtual void endFunction(const MachineFunction *MF) = 0;
+
+  /// \brief Process beginning of an instruction.
+  virtual void beginInstruction(const MachineInstr *MI) = 0;
+
+  /// \brief Process end of an instruction.
+  virtual void endInstruction() = 0;
+};
+} // End of namespace llvm
+
+#endif
-- 
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