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elimiante the DWLabel class, using MCSymbol instead. Start

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switching some stuff over to passing around MCSymbol* instead
of stem+ID.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97993 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-03-08 22:23:36 +00:00
parent 0e822407b2
commit b98b1bf432
10 changed files with 138 additions and 177 deletions
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77
lib/CodeGen/AsmPrinter/DwarfPrinter.cpp
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@ -37,6 +37,27 @@ DwarfPrinter::DwarfPrinter(raw_ostream &OS, AsmPrinter *A, const MCAsmInfo *T,
RI(Asm->TM.getRegisterInfo()), M(NULL), MF(NULL), MMI(NULL),
SubprogramCount(0), Flavor(flavor), SetCounter(1) {}
/// getDWLabel - Return the MCSymbol corresponding to the assembler temporary
/// label with the specified stem and unique ID.
MCSymbol *DwarfPrinter::getDWLabel(const char *Name, unsigned ID) const {
// FIXME: REMOVE this. However, there is stuff in EH that passes counters in
// here that can be zero.
//assert(ID && "Should use getTempLabel if no ID");
if (ID == 0) return getTempLabel(Name);
return Asm->OutContext.GetOrCreateSymbol(Twine(MAI->getPrivateGlobalPrefix())
+ Twine(Name) + Twine(ID));
}
/// getTempLabel - Return the MCSymbol corresponding to the assembler temporary
/// label with the specified name.
MCSymbol *DwarfPrinter::getTempLabel(const char *Name) const {
return Asm->OutContext.GetOrCreateSymbol(Twine(MAI->getPrivateGlobalPrefix())
+ Name);
}
/// SizeOfEncodedValue - Return the size of the encoding in bytes.
unsigned DwarfPrinter::SizeOfEncodedValue(unsigned Encoding) const {
if (Encoding == dwarf::DW_EH_PE_omit)
@ -193,12 +214,19 @@ void DwarfPrinter::EmitULEB128(unsigned Value, const char *Desc,
/// PrintLabelName - Print label name in form used by Dwarf writer.
///
void DwarfPrinter::PrintLabelName(const MCSymbol *Label) const {
// FIXME: REMOVE.
O << Label->getName();
}
void DwarfPrinter::PrintLabelName(const char *Tag, unsigned Number) const {
// FIXME: REMOVE.
O << MAI->getPrivateGlobalPrefix() << Tag;
if (Number) O << Number;
}
void DwarfPrinter::PrintLabelName(const char *Tag, unsigned Number,
const char *Suffix) const {
// FIXME: REMOVE.
O << MAI->getPrivateGlobalPrefix() << Tag;
if (Number) O << Number;
O << Suffix;
@ -207,6 +235,7 @@ void DwarfPrinter::PrintLabelName(const char *Tag, unsigned Number,
/// EmitLabel - Emit location label for internal use by Dwarf.
///
void DwarfPrinter::EmitLabel(const char *Tag, unsigned Number) const {
// FIXME: REMOVE.
PrintLabelName(Tag, Number);
O << ":\n";
}
@ -235,12 +264,8 @@ void DwarfPrinter::EmitReference(const MCSymbol *Sym, bool IsPCRelative,
void DwarfPrinter::EmitReference(const char *Tag, unsigned Number,
unsigned Encoding) const {
SmallString<64> Name;
raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix()
<< Tag << Number;
MCSymbol *Sym = Asm->OutContext.GetOrCreateSymbol(Name.str());
EmitReference(Sym, Encoding);
// FIXME: REMOVE.
EmitReference(getDWLabel(Tag, Number), Encoding);
}
void DwarfPrinter::EmitReference(const MCSymbol *Sym, unsigned Encoding) const {
@ -258,6 +283,31 @@ void DwarfPrinter::EmitReference(const GlobalValue *GV, unsigned Encoding)const
Asm->MMI, Encoding);;
}
/// EmitDifference - Emit the difference between two labels. If this assembler
/// supports .set, we emit a .set of a temporary and then use it in the .word.
void DwarfPrinter::EmitDifference(const MCSymbol *TagHi, const MCSymbol *TagLo,
bool IsSmall) {
if (MAI->hasSetDirective()) {
// FIXME: switch to OutStreamer.EmitAssignment.
O << "\t.set\t";
PrintLabelName("set", SetCounter, Flavor);
O << ",";
PrintLabelName(TagHi);
O << "-";
PrintLabelName(TagLo);
O << "\n";
PrintRelDirective(IsSmall);
PrintLabelName("set", SetCounter, Flavor);
++SetCounter;
} else {
PrintRelDirective(IsSmall);
PrintLabelName(TagHi);
O << "-";
PrintLabelName(TagLo);
}
}
/// EmitDifference - Emit the difference between two labels. If this assembler
/// supports .set, we emit a .set of a temporary and then use it in the .word.
void DwarfPrinter::EmitDifference(const char *TagHi, unsigned NumberHi,
@ -272,7 +322,7 @@ void DwarfPrinter::EmitDifference(const char *TagHi, unsigned NumberHi,
O << "-";
PrintLabelName(TagLo, NumberLo);
O << "\n";
PrintRelDirective(IsSmall);
PrintLabelName("set", SetCounter, Flavor);
++SetCounter;
@ -284,9 +334,8 @@ void DwarfPrinter::EmitDifference(const char *TagHi, unsigned NumberHi,
}
}
void DwarfPrinter::EmitSectionOffset(const char* Label, const char* Section,
unsigned LabelNumber,
unsigned SectionNumber,
void DwarfPrinter::EmitSectionOffset(const MCSymbol *Label,
const MCSymbol *Section,
bool IsSmall, bool isEH,
bool useSet) {
bool printAbsolute = false;
@ -300,11 +349,11 @@ void DwarfPrinter::EmitSectionOffset(const char* Label, const char* Section,
O << "\t.set\t";
PrintLabelName("set", SetCounter, Flavor);
O << ",";
PrintLabelName(Label, LabelNumber);
PrintLabelName(Label);
if (!printAbsolute) {
O << "-";
PrintLabelName(Section, SectionNumber);
PrintLabelName(Section);
}
O << "\n";
@ -313,11 +362,11 @@ void DwarfPrinter::EmitSectionOffset(const char* Label, const char* Section,
++SetCounter;
} else {
PrintRelDirective(IsSmall, true);
PrintLabelName(Label, LabelNumber);
PrintLabelName(Label);
if (!printAbsolute) {
O << "-";
PrintLabelName(Section, SectionNumber);
PrintLabelName(Section);
}
}
}