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Fix PR296: [execution engines] Unhandled cast constant expression 

llvm-svn: 12435
This commit is contained in:
Chris Lattner 2004-03-16 08:38:56 +00:00
parent db5b8f4d6b
commit 5def7a57c1
1 changed files with 17 additions and 6 deletions
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23
llvm/lib/ExecutionEngine/ExecutionEngine.cpp
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@ -179,19 +179,30 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
// automatically fold, just the ones involving pointers won't.
//
Constant *Op = CE->getOperand(0);
GenericValue GV = getConstantValue(Op);
// Handle cast of pointer to pointer...
if (Op->getType()->getPrimitiveID() == C->getType()->getPrimitiveID())
return getConstantValue(Op);
return GV;
// Handle a cast of pointer to any integral type...
if (isa<PointerType>(Op->getType()) && C->getType()->isIntegral())
return getConstantValue(Op);
return GV;
// Handle cast of long to pointer...
if (isa<PointerType>(C->getType()) && (Op->getType() == Type::LongTy ||
Op->getType() == Type::ULongTy))
return getConstantValue(Op);
// Handle cast of integer to a pointer...
if (isa<PointerType>(C->getType()) && Op->getType()->isIntegral())
switch (Op->getType()->getPrimitiveID()) {
case Type::BoolTyID: return PTOGV((void*)(uintptr_t)GV.BoolVal);
case Type::SByteTyID: return PTOGV((void*)( intptr_t)GV.SByteVal);
case Type::UByteTyID: return PTOGV((void*)(uintptr_t)GV.UByteVal);
case Type::ShortTyID: return PTOGV((void*)( intptr_t)GV.ShortVal);
case Type::UShortTyID: return PTOGV((void*)(uintptr_t)GV.UShortVal);
case Type::IntTyID: return PTOGV((void*)( intptr_t)GV.IntVal);
case Type::UIntTyID: return PTOGV((void*)(uintptr_t)GV.UIntVal);
case Type::LongTyID: return PTOGV((void*)( intptr_t)GV.LongVal);
case Type::ULongTyID: return PTOGV((void*)(uintptr_t)GV.ULongVal);
default: assert(0 && "Unknown integral type!");
}
break;
}