Add support to emit debug info for C++0x nullptr type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139751 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DIBuilder.cpp b/lib/Analysis/DIBuilder.cpp
index cce8d96..fd56d36 100644
--- a/lib/Analysis/DIBuilder.cpp
+++ b/lib/Analysis/DIBuilder.cpp
@@ -146,6 +146,26 @@
return DIEnumerator(MDNode::get(VMContext, Elts));
}
+/// createNullPtrType - Create C++0x nullptr type.
+DIType DIBuilder::createNullPtrType(StringRef Name) {
+ assert(!Name.empty() && "Unable to create type without name");
+ // nullptr is encoded in DIBasicType format. Line number, filename,
+ // ,size, alignment, offset and flags are always empty here.
+ Value *Elts[] = {
+ GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_type),
+ NULL, //TheCU,
+ MDString::get(VMContext, Name),
+ NULL, // Filename
+ ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
+ ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
+ ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
+ ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
+ ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags;
+ ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Encoding
+ };
+ return DIType(MDNode::get(VMContext, Elts));
+}
+
/// createBasicType - Create debugging information entry for a basic
/// type, e.g 'char'.
DIType DIBuilder::createBasicType(StringRef Name, uint64_t SizeInBits,