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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.

llvm-svn: 131525
This commit is contained in:
Charles Davis 2011-05-18 04:58:05 +00:00
parent 07b5c276f4
commit 8d9c99042f
1 changed files with 77 additions and 0 deletions
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77
llvm/lib/MC/MCAsmStreamer.cpp
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@ -208,6 +208,15 @@ public:
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 @@ void MCAsmStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
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;