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move uleb/sleb printing into AsmPrinter from DwarfPrinter.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100344 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-04-04 19:09:29 +00:00
parent 17fedf216b
commit 7e1a8f882f
9 changed files with 135 additions and 113 deletions
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68
lib/CodeGen/AsmPrinter/DwarfPrinter.cpp
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@ -133,58 +133,6 @@ void DwarfPrinter::EmitCFAByte(unsigned Val) {
Asm->OutStreamer.EmitIntValue(Val, 1, 0/*addrspace*/);
}
/// EmitSLEB128 - emit the specified signed leb128 value.
void DwarfPrinter::EmitSLEB128(int Value, const char *Desc) const {
if (Asm->isVerbose() && Desc)
Asm->OutStreamer.AddComment(Desc);
if (MAI->hasLEB128()) {
// FIXME: MCize.
Asm->OutStreamer.EmitRawText("\t.sleb128\t" + Twine(Value));
return;
}
// If we don't have .sleb128, emit as .bytes.
int Sign = Value >> (8 * sizeof(Value) - 1);
bool IsMore;
do {
unsigned char Byte = static_cast<unsigned char>(Value & 0x7f);
Value >>= 7;
IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
if (IsMore) Byte |= 0x80;
Asm->OutStreamer.EmitIntValue(Byte, 1, /*addrspace*/0);
} while (IsMore);
}
/// EmitULEB128 - emit the specified signed leb128 value.
void DwarfPrinter::EmitULEB128(unsigned Value, const char *Desc,
unsigned PadTo) const {
if (Asm->isVerbose() && Desc)
Asm->OutStreamer.AddComment(Desc);
if (MAI->hasLEB128() && PadTo == 0) {
// FIXME: MCize.
Asm->OutStreamer.EmitRawText("\t.uleb128\t" + Twine(Value));
return;
}
// If we don't have .uleb128 or we want to emit padding, emit as .bytes.
do {
unsigned char Byte = static_cast<unsigned char>(Value & 0x7f);
Value >>= 7;
if (Value || PadTo != 0) Byte |= 0x80;
Asm->OutStreamer.EmitIntValue(Byte, 1, /*addrspace*/0);
} while (Value);
if (PadTo) {
if (PadTo > 1)
Asm->OutStreamer.EmitFill(PadTo - 1, 0x80/*fillval*/, 0/*addrspace*/);
Asm->OutStreamer.EmitFill(1, 0/*fillval*/, 0/*addrspace*/);
}
}
void DwarfPrinter::EmitReference(const MCSymbol *Sym, unsigned Encoding) const {
const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
@ -269,11 +217,11 @@ void DwarfPrinter::EmitFrameMoves(MCSymbol *BaseLabel,
EmitCFAByte(dwarf::DW_CFA_def_cfa_offset);
} else {
EmitCFAByte(dwarf::DW_CFA_def_cfa);
EmitULEB128(RI->getDwarfRegNum(Src.getReg(), isEH), "Register");
Asm->EmitULEB128(RI->getDwarfRegNum(Src.getReg(), isEH), "Register");
}
int Offset = -Src.getOffset();
EmitULEB128(Offset, "Offset");
Asm->EmitULEB128(Offset, "Offset");
} else {
llvm_unreachable("Machine move not supported yet.");
}
@ -281,7 +229,7 @@ void DwarfPrinter::EmitFrameMoves(MCSymbol *BaseLabel,
Src.getReg() == MachineLocation::VirtualFP) {
if (Dst.isReg()) {
EmitCFAByte(dwarf::DW_CFA_def_cfa_register);
EmitULEB128(RI->getDwarfRegNum(Dst.getReg(), isEH), "Register");
Asm->EmitULEB128(RI->getDwarfRegNum(Dst.getReg(), isEH), "Register");
} else {
llvm_unreachable("Machine move not supported yet.");
}
@ -291,15 +239,15 @@ void DwarfPrinter::EmitFrameMoves(MCSymbol *BaseLabel,
if (Offset < 0) {
EmitCFAByte(dwarf::DW_CFA_offset_extended_sf);
EmitULEB128(Reg, "Reg");
EmitSLEB128(Offset, "Offset");
Asm->EmitULEB128(Reg, "Reg");
Asm->EmitSLEB128(Offset, "Offset");
} else if (Reg < 64) {
EmitCFAByte(dwarf::DW_CFA_offset + Reg);
EmitULEB128(Offset, "Offset");
Asm->EmitULEB128(Offset, "Offset");
} else {
EmitCFAByte(dwarf::DW_CFA_offset_extended);
EmitULEB128(Reg, "Reg");
EmitULEB128(Offset, "Offset");
Asm->EmitULEB128(Reg, "Reg");
Asm->EmitULEB128(Offset, "Offset");
}
}
}