[SEH] Add new intrinsics for recovering and restoring parent frames

[oota-llvm.git] / lib / CodeGen / AsmPrinter / WinException.h

diff --git a/lib/CodeGen/AsmPrinter/WinException.h b/lib/CodeGen/AsmPrinter/WinException.h
index ee5f122a49d2a51fef96f2308060ae8bae5ed325..a4ebd8a4cc2fd3d2bc5f25e981fef01d1eaf2915 100644 (file)
--- a/lib/CodeGen/AsmPrinter/WinException.h
+++ b/lib/CodeGen/AsmPrinter/WinException.h
@@ -17,26 +17,46 @@
 #include "EHStreamer.h"
 
 namespace llvm {
+class Function;
 class GlobalValue;
 class MachineFunction;
 class MCExpr;
+struct WinEHFuncInfo;
 
 class WinException : public EHStreamer {
   /// Per-function flag to indicate if personality info should be emitted.
-  bool shouldEmitPersonality;
+  bool shouldEmitPersonality = false;
 
   /// Per-function flag to indicate if the LSDA should be emitted.
-  bool shouldEmitLSDA;
+  bool shouldEmitLSDA = false;
 
   /// Per-function flag to indicate if frame moves info should be emitted.
-  bool shouldEmitMoves;
+  bool shouldEmitMoves = false;
+
+  /// True if this is a 64-bit target and we should use image relative offsets.
+  bool useImageRel32 = false;
 
   void emitCSpecificHandlerTable();
 
+  /// Emit the EH table data for 32-bit and 64-bit functions using
+  /// the __CxxFrameHandler3 personality.
   void emitCXXFrameHandler3Table(const MachineFunction *MF);
 
-  const MCExpr *createImageRel32(const MCSymbol *Value);
-  const MCExpr *createImageRel32(const GlobalValue *GV);
+  /// Emit the EH table data for _except_handler3 and _except_handler4
+  /// personality functions. These are only used on 32-bit and do not use CFI
+  /// tables.
+  void emitExceptHandlerTable(const MachineFunction *MF);
+
+  void extendIP2StateTable(const MachineFunction *MF, const Function *ParentF,
+                           WinEHFuncInfo &FuncInfo);
+
+  /// Emits the label used with llvm.x86.seh.recoverfp, which is used by
+  /// outlined funclets.
+  void emitEHRegistrationOffsetLabel(const WinEHFuncInfo &FuncInfo,
+                                     StringRef FLinkageName);
+
+  const MCExpr *create32bitRef(const MCSymbol *Value);
+  const MCExpr *create32bitRef(const GlobalValue *GV);
 
 public:
   //===--------------------------------------------------------------------===//