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add support for some targetflags on GV operands. This allows us to 

send instructions like:

NEW: 	movl	"L___stack_chk_guard$non_lazy_ptr" - "L1$pb"(%esi), %eax
OLD: 	movl	L___stack_chk_guard$non_lazy_ptr-"L1$pb"(%esi), %eax

through the streamer.  Several fixmes.

llvm-svn: 79317
This commit is contained in:
Chris Lattner 2009-08-18 05:33:27 +00:00
parent 2a4061929f
commit 40bbb85949
1 changed files with 44 additions and 2 deletions
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46
llvm/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
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@ -72,7 +72,7 @@ MCSymbol *X86ATTAsmPrinter::GetPICBaseSymbol() {
} else {
assert(Subtarget->isTargetELF() && "Don't know how to print PIC label!");
Name = ".Lllvm$" + utostr(getFunctionNumber())+".$piclabel";
}
}
return OutContext.GetOrCreateSymbol(Name);
}
@ -734,9 +734,51 @@ MCOperand X86ATTAsmPrinter::LowerGlobalAddressOperand(const MachineOperand &MO){
else if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB)
FnStubs[Name] = Mang->getMangledName(GV);
// Handle target operand flags.
// FIXME: This should be common between external symbols, constant pool etc.
MCSymbol *NegatedSymbol = 0;
switch (MO.getTargetFlags()) {
default:
llvm_unreachable("Unknown target flag on GV operand");
case X86II::MO_NO_FLAG: // No flag.
break;
case X86II::MO_DARWIN_NONLAZY:
case X86II::MO_DARWIN_HIDDEN_NONLAZY:
case X86II::MO_DLLIMPORT:
case X86II::MO_DARWIN_STUB:
// These affect the name of the symbol, not any suffix.
break;
case X86II::MO_GOT_ABSOLUTE_ADDRESS:
assert(0 && "Reloc mode unimp!");
//O << " + [.-";
//PrintPICBaseSymbol();
//O << ']';
break;
case X86II::MO_PIC_BASE_OFFSET:
case X86II::MO_DARWIN_NONLAZY_PIC_BASE:
case X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE:
// Subtract the pic base.
NegatedSymbol = GetPICBaseSymbol();
break;
// FIXME: These probably should be a modifier on the symbol or something??
case X86II::MO_TLSGD: Name += "@TLSGD"; break;
case X86II::MO_GOTTPOFF: Name += "@GOTTPOFF"; break;
case X86II::MO_INDNTPOFF: Name += "@INDNTPOFF"; break;
case X86II::MO_TPOFF: Name += "@TPOFF"; break;
case X86II::MO_NTPOFF: Name += "@NTPOFF"; break;
case X86II::MO_GOTPCREL: Name += "@GOTPCREL"; break;
case X86II::MO_GOT: Name += "@GOT"; break;
case X86II::MO_GOTOFF: Name += "@GOTOFF"; break;
case X86II::MO_PLT: Name += "@PLT"; break;
}
// Create a symbol for the name.
MCSymbol *Sym = OutContext.GetOrCreateSymbol(Name);
return MCOperand::CreateMCValue(MCValue::get(Sym, 0, MO.getOffset()));
return MCOperand::CreateMCValue(MCValue::get(Sym, NegatedSymbol,
MO.getOffset()));
}
MCOperand X86ATTAsmPrinter::