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Store a DataLayout in Module.

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Now that DataLayout is not a pass, store one in Module.

Since the C API expects to be able to get a char* to the datalayout description,
we have to keep a std::string somewhere. This patch keeps it in Module and also
uses it to represent modules without a DataLayout.

Once DataLayout is mandatory, we should probably move the string to DataLayout
itself since it won't be necessary anymore to represent the special case of a
module without a DataLayout.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202190 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-02-25 20:01:08 +00:00
parent dbaa6ab8b5
commit aab87fe0ec
9 changed files with 62 additions and 24 deletions
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28
lib/IR/Module.cpp
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@ -42,8 +42,8 @@ template class llvm::SymbolTableListTraits<GlobalAlias, Module>;
// Primitive Module methods.
//
Module::Module(StringRef MID, LLVMContext& C)
: Context(C), Materializer(NULL), ModuleID(MID) {
Module::Module(StringRef MID, LLVMContext &C)
: Context(C), Materializer(NULL), ModuleID(MID), DL("") {
ValSymTab = new ValueSymbolTable();
NamedMDSymTab = new StringMap<NamedMDNode *>();
Context.addModule(this);
@ -338,6 +338,30 @@ void Module::addModuleFlag(MDNode *Node) {
getOrInsertModuleFlagsMetadata()->addOperand(Node);
}
void Module::setDataLayout(StringRef Desc) {
if (Desc.empty()) {
DataLayoutStr = "";
} else {
DL.init(Desc);
DataLayoutStr = DL.getStringRepresentation();
}
}
void Module::setDataLayout(const DataLayout *Other) {
if (!Other) {
DataLayoutStr = "";
} else {
DL = *Other;
DataLayoutStr = DL.getStringRepresentation();
}
}
const DataLayout *Module::getDataLayout() const {
if (DataLayoutStr.empty())
return 0;
return &DL;
}
//===----------------------------------------------------------------------===//
// Methods to control the materialization of GlobalValues in the Module.
//