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- Fix a really nasty bug in the bytecode reader that caused it to fail

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reading bytecode files with > 255 types in them, but only when optimization
    is enabled.  This was caused by GCC shrinking an enum to a single byte
    instead of a whole word.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4266 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-10-23 00:51:54 +00:00
parent 5dfab9ec22
commit 8cdc6b726a
1 changed files with 11 additions and 10 deletions
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21
lib/Bytecode/Reader/Reader.cpp
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@ -48,15 +48,14 @@ bool BytecodeParser::getTypeSlot(const Type *Ty, unsigned &Slot) {
}
const Type *BytecodeParser::getType(unsigned ID) {
const Type *T = Type::getPrimitiveType((Type::PrimitiveID)ID);
if (T) return T;
if (ID < Type::NumPrimitiveIDs) {
const Type *T = Type::getPrimitiveType((Type::PrimitiveID)ID);
if (T) return T;
}
//cerr << "Looking up Type ID: " << ID << "\n";
const Value *D = getValue(Type::TypeTy, ID, false);
if (D == 0) return 0;
return cast<Type>(D);
const Value *V = getValue(Type::TypeTy, ID, false);
return cast_or_null<Type>(V);
}
int BytecodeParser::insertValue(Value *Val, std::vector<ValueList> &ValueTab) {
@ -82,8 +81,10 @@ Value *BytecodeParser::getValue(const Type *Ty, unsigned oNum, bool Create) {
if (type == Type::TypeTyID) { // The 'type' plane has implicit values
assert(Create == false);
const Type *T = Type::getPrimitiveType((Type::PrimitiveID)Num);
if (T) return (Value*)T; // Asked for a primitive type...
if (Num < Type::NumPrimitiveIDs) {
const Type *T = Type::getPrimitiveType((Type::PrimitiveID)Num);
if (T) return (Value*)T; // Asked for a primitive type...
}
// Otherwise, derived types need offset...
Num -= FirstDerivedTyID;
@ -452,7 +453,7 @@ bool BytecodeParser::ParseModuleGlobalInfo(const uchar *&Buf, const uchar *End,
Error = "Function not ptr to func type! Ty = " + Ty->getDescription();
return true;
}
// We create methods by passing the underlying FunctionType to create...
Ty = cast<PointerType>(Ty)->getElementType();