Store a DataLayout in Module.
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.
llvm-svn: 202190
diff --git a/llvm/lib/IR/Module.cpp b/llvm/lib/IR/Module.cpp
index d911c7e..739f888 100644
--- a/llvm/lib/IR/Module.cpp
+++ b/llvm/lib/IR/Module.cpp
@@ -42,8 +42,8 @@
// 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 @@
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.
//