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Fix ExecutionEngine's constant code to work properly when structs and arrays 

will become first-class types.

llvm-svn: 51293
This commit is contained in:
Dan Gohman 2008-05-20 03:20:09 +00:00
parent e5572706e8
commit 69ddfbfe9e
1 changed files with 14 additions and 23 deletions
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37
llvm/lib/ExecutionEngine/ExecutionEngine.cpp
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@ -812,35 +812,26 @@ void ExecutionEngine::InitializeMemory(const Constant *Init, void *Addr) {
} else if (isa<ConstantAggregateZero>(Init)) {
memset(Addr, 0, (size_t)getTargetData()->getABITypeSize(Init->getType()));
return;
} else if (const ConstantArray *CPA = dyn_cast<ConstantArray>(Init)) {
unsigned ElementSize =
getTargetData()->getABITypeSize(CPA->getType()->getElementType());
for (unsigned i = 0, e = CPA->getNumOperands(); i != e; ++i)
InitializeMemory(CPA->getOperand(i), (char*)Addr+i*ElementSize);
return;
} else if (const ConstantStruct *CPS = dyn_cast<ConstantStruct>(Init)) {
const StructLayout *SL =
getTargetData()->getStructLayout(cast<StructType>(CPS->getType()));
for (unsigned i = 0, e = CPS->getNumOperands(); i != e; ++i)
InitializeMemory(CPS->getOperand(i), (char*)Addr+SL->getElementOffset(i));
return;
} else if (Init->getType()->isFirstClassType()) {
GenericValue Val = getConstantValue(Init);
StoreValueToMemory(Val, (GenericValue*)Addr, Init->getType());
return;
}
switch (Init->getType()->getTypeID()) {
case Type::ArrayTyID: {
const ConstantArray *CPA = cast<ConstantArray>(Init);
unsigned ElementSize =
getTargetData()->getABITypeSize(CPA->getType()->getElementType());
for (unsigned i = 0, e = CPA->getNumOperands(); i != e; ++i)
InitializeMemory(CPA->getOperand(i), (char*)Addr+i*ElementSize);
return;
}
case Type::StructTyID: {
const ConstantStruct *CPS = cast<ConstantStruct>(Init);
const StructLayout *SL =
getTargetData()->getStructLayout(cast<StructType>(CPS->getType()));
for (unsigned i = 0, e = CPS->getNumOperands(); i != e; ++i)
InitializeMemory(CPS->getOperand(i), (char*)Addr+SL->getElementOffset(i));
return;
}
default:
cerr << "Bad Type: " << *Init->getType() << "\n";
assert(0 && "Unknown constant type to initialize memory with!");
}
cerr << "Bad Type: " << *Init->getType() << "\n";
assert(0 && "Unknown constant type to initialize memory with!");
}
/// EmitGlobals - Emit all of the global variables to memory, storing their