Rename TargetAsmParser to MCTargetAsmParser and TargetAsmLexer to MCTargetAsmLexer...

[oota-llvm.git] / include / llvm / MC / MCDwarf.h

diff --git a/include/llvm/MC/MCDwarf.h b/include/llvm/MC/MCDwarf.h
index 303376f16e1bed8af938b622cc3637a873d9434b..431e3c4da86a7fffd091db1e929ca7a6f2ff27fb 100644 (file)
--- a/include/llvm/MC/MCDwarf.h
+++ b/include/llvm/MC/MCDwarf.h
@@ -16,14 +16,15 @@
 #define LLVM_MC_MCDWARF_H
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/MC/MachineLocation.h"
 #include "llvm/MC/MCObjectWriter.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/Dwarf.h"
 #include <vector>
 
 namespace llvm {
-  class MachineMove;
   class MCContext;
+  class MCExpr;
   class MCSection;
   class MCSectionData;
   class MCStreamer;
@@ -226,13 +227,52 @@ namespace llvm {
                       int64_t LineDelta, uint64_t AddrDelta);
   };
 
+  class MCCFIInstruction {
+  public:
+    enum OpType { SameValue, Remember, Restore, Move, RelMove };
+  private:
+    OpType Operation;
+    MCSymbol *Label;
+    // Move to & from location.
+    MachineLocation Destination;
+    MachineLocation Source;
+  public:
+    MCCFIInstruction(OpType Op, MCSymbol *L)
+      : Operation(Op), Label(L) {
+      assert(Op == Remember || Op == Restore);
+    }
+    MCCFIInstruction(OpType Op, MCSymbol *L, unsigned Register)
+      : Operation(Op), Label(L), Destination(Register) {
+      assert(Op == SameValue);
+    }
+    MCCFIInstruction(MCSymbol *L, const MachineLocation &D,
+                     const MachineLocation &S)
+      : Operation(Move), Label(L), Destination(D), Source(S) {
+    }
+    MCCFIInstruction(OpType Op, MCSymbol *L, const MachineLocation &D,
+                     const MachineLocation &S)
+      : Operation(Op), Label(L), Destination(D), Source(S) {
+      assert(Op == RelMove);
+    }
+    OpType getOperation() const { return Operation; }
+    MCSymbol *getLabel() const { return Label; }
+    const MachineLocation &getDestination() const { return Destination; }
+    const MachineLocation &getSource() const { return Source; }
+  };
+
   struct MCDwarfFrameInfo {
+    MCDwarfFrameInfo() : Begin(0), End(0), Personality(0), Lsda(0),
+                         Function(0), Instructions(), PersonalityEncoding(),
+                         LsdaEncoding(0), CompactUnwindEncoding(0) {}
     MCSymbol *Begin;
     MCSymbol *End;
     const MCSymbol *Personality;
     const MCSymbol *Lsda;
+    const MCSymbol *Function;
+    std::vector<MCCFIInstruction> Instructions;
     unsigned PersonalityEncoding;
     unsigned LsdaEncoding;
+    uint32_t CompactUnwindEncoding;
   };
 
   class MCDwarfFrameEmitter {
@@ -240,7 +280,10 @@ namespace llvm {
     //
     // This emits the frame info section.
     //
-    static void Emit(MCStreamer &streamer);
+    static void Emit(MCStreamer &streamer, bool usingCFI,
+                     bool isEH);
+    static void EmitAdvanceLoc(MCStreamer &Streamer, uint64_t AddrDelta);
+    static void EncodeAdvanceLoc(uint64_t AddrDelta, raw_ostream &OS);
   };
 } // end namespace llvm