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Fix use of uninitialized value added in r189400 (found by MemorySanitizer) 

llvm-svn: 189456
This commit is contained in:
Alexey Samsonov 2013-08-28 08:30:47 +00:00
parent ed8f1c6dce
commit a3a037df63
1 changed files with 3 additions and 4 deletions
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7
llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.cpp
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@ -54,7 +54,7 @@ PPCMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
const MCAsmLayout *Layout) const { const MCAsmLayout *Layout) const {
MCValue Value; MCValue Value;
if (Layout && !getSubExpr()->EvaluateAsRelocatable(Value, *Layout)) if (!Layout || !getSubExpr()->EvaluateAsRelocatable(Value, *Layout))
return false; return false;
if (Value.isAbsolute()) { if (Value.isAbsolute()) {
@ -85,7 +85,7 @@ PPCMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
break; break;
} }
Res = MCValue::get(Result); Res = MCValue::get(Result);
} else if (Layout) { } else {
MCContext &Context = Layout->getAssembler().getContext(); MCContext &Context = Layout->getAssembler().getContext();
const MCSymbolRefExpr *Sym = Value.getSymA(); const MCSymbolRefExpr *Sym = Value.getSymA();
MCSymbolRefExpr::VariantKind Modifier = Sym->getKind(); MCSymbolRefExpr::VariantKind Modifier = Sym->getKind();
@ -118,8 +118,7 @@ PPCMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
} }
Sym = MCSymbolRefExpr::Create(&Sym->getSymbol(), Modifier, Context); Sym = MCSymbolRefExpr::Create(&Sym->getSymbol(), Modifier, Context);
Res = MCValue::get(Sym, Value.getSymB(), Value.getConstant()); Res = MCValue::get(Sym, Value.getSymB(), Value.getConstant());
} else }
return false;
return true; return true;
} }