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Make BuildSymbolDiff an static helper.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215717 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-08-15 14:31:47 +00:00
parent cef3ad6720
commit 305a51fec3
3 changed files with 13 additions and 18 deletions
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lib/MC/MCObjectStreamer.cpp
+13 -2
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@@ -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);