CodeGen: split out the Win64Exception emitter
Move the Windows unwind information emitter into a separate header. This is not
related to DWARF based emission. NFC.
llvm-svn: 216894
diff --git a/llvm/lib/CodeGen/AsmPrinter/Win64Exception.h b/llvm/lib/CodeGen/AsmPrinter/Win64Exception.h
new file mode 100644
index 0000000..538e132
--- /dev/null
+++ b/llvm/lib/CodeGen/AsmPrinter/Win64Exception.h
@@ -0,0 +1,52 @@
+//===-- Win64Exception.h - Windows Exception Handling ----------*- 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 support for writing windows exception info into asm files.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_WIN64EXCEPTION_H
+#define LLVM_LIB_CODEGEN_ASMPRINTER_WIN64EXCEPTION_H
+
+#include "EHStreamer.h"
+
+namespace llvm {
+class MachineFunction;
+
+class Win64Exception : public EHStreamer {
+ /// Per-function flag to indicate if personality info should be emitted.
+ bool shouldEmitPersonality;
+
+ /// Per-function flag to indicate if the LSDA should be emitted.
+ bool shouldEmitLSDA;
+
+ /// Per-function flag to indicate if frame moves info should be emitted.
+ bool shouldEmitMoves;
+
+public:
+ //===--------------------------------------------------------------------===//
+ // Main entry points.
+ //
+ Win64Exception(AsmPrinter *A);
+ virtual ~Win64Exception();
+
+ /// Emit all exception information that should come after the content.
+ void endModule() override;
+
+ /// Gather pre-function exception information. Assumes being emitted
+ /// immediately after the function entry point.
+ void beginFunction(const MachineFunction *MF) override;
+
+ /// Gather and emit post-function exception information.
+ void endFunction(const MachineFunction *) override;
+};
+}
+
+#endif
+