diff options
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp b/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp index 97c08da3827..c57e3021710 100644 --- a/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp @@ -24,12 +24,11 @@ unsigned AddressPool::getIndex(const MCSymbol *Sym, bool TLS) { return IterBool.first->second.Number; } - -void AddressPool::emitHeader(AsmPrinter &Asm, MCSection *Section) { +MCSymbol *AddressPool::emitHeader(AsmPrinter &Asm, MCSection *Section) { static const uint8_t AddrSize = Asm.getDataLayout().getPointerSize(); StringRef Prefix = "debug_addr_"; MCSymbol *BeginLabel = Asm.createTempSymbol(Prefix + "start"); - EndLabel = Asm.createTempSymbol(Prefix + "end"); + MCSymbol *EndLabel = Asm.createTempSymbol(Prefix + "end"); Asm.OutStreamer->AddComment("Length of contribution"); Asm.EmitLabelDifference(EndLabel, BeginLabel, 4); // TODO: Support DWARF64 format. @@ -40,6 +39,8 @@ void AddressPool::emitHeader(AsmPrinter &Asm, MCSection *Section) { Asm.emitInt8(AddrSize); Asm.OutStreamer->AddComment("Segment selector size"); Asm.emitInt8(0); // TODO: Support non-zero segment_selector_size. + + return EndLabel; } // Emit addresses into the section given. @@ -50,8 +51,10 @@ void AddressPool::emit(AsmPrinter &Asm, MCSection *AddrSection) { // Start the dwarf addr section. Asm.OutStreamer->SwitchSection(AddrSection); + MCSymbol *EndLabel = nullptr; + if (Asm.getDwarfVersion() >= 5) - emitHeader(Asm, AddrSection); + EndLabel = emitHeader(Asm, AddrSection); // Define the symbol that marks the start of the contribution. // It is referenced via DW_AT_addr_base. @@ -69,5 +72,6 @@ void AddressPool::emit(AsmPrinter &Asm, MCSection *AddrSection) { for (const MCExpr *Entry : Entries) Asm.OutStreamer->EmitValue(Entry, Asm.getDataLayout().getPointerSize()); - Asm.OutStreamer->EmitLabel(EndLabel); + if (EndLabel) + Asm.OutStreamer->EmitLabel(EndLabel); } |
