diff options
Diffstat (limited to 'llvm/lib/MC/MCObjectStreamer.cpp')
| -rw-r--r-- | llvm/lib/MC/MCObjectStreamer.cpp | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/llvm/lib/MC/MCObjectStreamer.cpp b/llvm/lib/MC/MCObjectStreamer.cpp index ad6bc47c916..76a6532b8ee 100644 --- a/llvm/lib/MC/MCObjectStreamer.cpp +++ b/llvm/lib/MC/MCObjectStreamer.cpp @@ -264,6 +264,17 @@ void MCObjectStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, Isa, Discriminator, FileName); } +static const MCExpr *buildSymbolDiff(MCObjectStreamer &OS, const MCSymbol *A, + const MCSymbol *B) { + MCContext &Context = OS.getContext(); + MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; + const MCExpr *ARef = MCSymbolRefExpr::Create(A, Variant, Context); + const MCExpr *BRef = MCSymbolRefExpr::Create(B, Variant, Context); + const MCExpr *AddrDelta = + MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context); + return AddrDelta; +} + void MCObjectStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta, const MCSymbol *LastLabel, const MCSymbol *Label, @@ -272,7 +283,7 @@ void MCObjectStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta, EmitDwarfSetLineAddr(LineDelta, Label, PointerSize); return; } - const MCExpr *AddrDelta = BuildSymbolDiff(getContext(), Label, LastLabel); + const MCExpr *AddrDelta = buildSymbolDiff(*this, Label, LastLabel); int64_t Res; if (AddrDelta->EvaluateAsAbsolute(Res, getAssembler())) { MCDwarfLineAddr::Emit(this, LineDelta, Res); @@ -283,7 +294,7 @@ void MCObjectStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta, void MCObjectStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel, const MCSymbol *Label) { - const MCExpr *AddrDelta = BuildSymbolDiff(getContext(), Label, LastLabel); + const MCExpr *AddrDelta = buildSymbolDiff(*this, Label, LastLabel); int64_t Res; if (AddrDelta->EvaluateAsAbsolute(Res, getAssembler())) { MCDwarfFrameEmitter::EmitAdvanceLoc(*this, Res); |
