[llvm-commits] [llvm] r131525 - /llvm/trunk/lib/MC/MCAsmStreamer.cpp

[Charles Davis]

Author: cdavis
Date: Tue May 17 23:58:05 2011
New Revision: 131525

URL: http://llvm.org/viewvc/llvm-project?rev=131525&view=rev
Log:
Implement the Win64 EH directive methods for the assembly language streamer.

GAS has no such directives (not even mingw-w64 GAS has them), so I took
creative license with their names in assembly. I prefixed them all with
"w64_" to avoid namespace collisions, for example. If I discover that GAS
has taken a different approach, I'll change ours to match.

Modified:
    llvm/trunk/lib/MC/MCAsmStreamer.cpp

Modified: llvm/trunk/lib/MC/MCAsmStreamer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCAsmStreamer.cpp?rev=131525&r1=131524&r2=131525&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCAsmStreamer.cpp (original)
+++ llvm/trunk/lib/MC/MCAsmStreamer.cpp Tue May 17 23:58:05 2011
@@ -208,6 +208,15 @@
   virtual void EmitCFIRelOffset(int64_t Register, int64_t Offset);
   virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment);
 
+  virtual void EmitWin64EHStartProc(MCSymbol *Symbol, MCSymbol *EHandler = 0);
+  virtual void EmitWin64EHEndProc();
+  virtual void EmitWin64EHPushReg(int64_t Register);
+  virtual void EmitWin64EHSetFrame(int64_t Register, int64_t Offset);
+  virtual void EmitWin64EHAllocStack(int64_t Size);
+  virtual void EmitWin64EHSaveReg(int64_t Register, int64_t Offset);
+  virtual void EmitWin64EHPushFrame(bool Code);
+  virtual void EmitWin64EHEndProlog();
+
   virtual void EmitFnStart();
   virtual void EmitFnEnd();
   virtual void EmitCantUnwind();
@@ -915,6 +924,74 @@
   EmitEOL();
 }
 
+void MCAsmStreamer::EmitWin64EHStartProc(MCSymbol *Symbol, MCSymbol *EHandler)
+{
+  //MCStreamer::EmitWin64EHStartProc(Symbol, EHandler);
+
+  OS << ".w64_startproc " << *Symbol;
+  if (EHandler)
+    OS << ", " << *EHandler;
+  EmitEOL();
+}
+
+void MCAsmStreamer::EmitWin64EHEndProc()
+{
+  //MCStreamer::EmitWin64EHEndProc();
+
+  OS << "\t.w64_endproc";
+  EmitEOL();
+}
+
+void MCAsmStreamer::EmitWin64EHPushReg(int64_t Register)
+{
+  //MCStreamer::EmitWin64EHPushReg(Register);
+
+  OS << "\t.w64_pushreg " << Register;
+  EmitEOL();
+}
+
+void MCAsmStreamer::EmitWin64EHSetFrame(int64_t Register, int64_t Offset)
+{
+  //MCStreamer::EmitWin64EHSetFrame(Register, Offset);
+
+  OS << "\t.w64_setframe " << Register << ", " << Offset;
+  EmitEOL();
+}
+
+void MCAsmStreamer::EmitWin64EHAllocStack(int64_t Size)
+{
+  //MCStremaer::EmitWin64EHAllocStack(Size);
+
+  OS << "\t.w64_allocstack " << Size;
+  EmitEOL();
+}
+
+void MCAsmStreamer::EmitWin64EHSaveReg(int64_t Register, int64_t Offset)
+{
+  //MCStreamer::EmitWin64EHSaveReg(Register, Offset)
+
+  OS << "\t.w64_savereg " << Register << ", " << Offset;
+  EmitEOL();
+}
+
+void MCAsmStreamer::EmitWin64EHPushFrame(bool Code)
+{
+  //MCStreamer::EmitWin64EHPushFrame(Code);
+
+  OS << "\t.w64_pushframe";
+  if (Code)
+    OS << " " << "code";
+  EmitEOL();
+}
+
+void MCAsmStreamer::EmitWin64EHEndProlog(void)
+{
+  //MCStreamer::EmitWin64EHEndProlog();
+
+  OS << "\t.w64_endprolog";
+  EmitEOL();
+}
+
 void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) {
   raw_ostream &OS = GetCommentOS();
   SmallString<256> Code;