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reject undef/zero labels. This fixes PR3281:crash0[56].ll with these

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diagnostics:
llvm-as: crash05.ll:1:14: invalid type for null constant
global label zeroinitializer addrspace (75), section "c"
             ^
llvm-as: crash06.ll:2:14: invalid type for null constant
  udiv label zeroinitializer, @0
             ^



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61681 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-01-05 08:13:38 +00:00
parent 4a1c4a414c
commit e67c1aa398
1 changed files with 5 additions and 1 deletions
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6
lib/AsmParser/LLParser.cpp
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@ -1906,6 +1906,9 @@ bool LLParser::ConvertGlobalValIDToValue(const Type *Ty, ValID &ID,
V = ConstantPointerNull::get(cast<PointerType>(Ty));
return false;
case ValID::t_Undef:
// FIXME: LabelTy should not be a first-class type.
if (!Ty->isFirstClassType() || Ty == Type::LabelTy)
return Error(ID.Loc, "invalid type for undef constant");
V = UndefValue::get(Ty);
return false;
case ValID::t_EmptyArray:
@ -1914,7 +1917,8 @@ bool LLParser::ConvertGlobalValIDToValue(const Type *Ty, ValID &ID,
V = UndefValue::get(Ty);
return false;
case ValID::t_Zero:
if (!Ty->isFirstClassType())
// FIXME: LabelTy should not be a first-class type.
if (!Ty->isFirstClassType() || Ty == Type::LabelTy)
return Error(ID.Loc, "invalid type for null constant");
V = Constant::getNullValue(Ty);
return false;