diff options
| -rw-r--r-- | include/llvm/Analysis/DIBuilder.h | 4 | ||||
| -rw-r--r-- | lib/Analysis/DIBuilder.cpp | 22 |
2 files changed, 26 insertions, 0 deletions
diff --git a/include/llvm/Analysis/DIBuilder.h b/include/llvm/Analysis/DIBuilder.h index 666ca58..3785fa8 100644 --- a/include/llvm/Analysis/DIBuilder.h +++ b/include/llvm/Analysis/DIBuilder.h @@ -341,6 +341,10 @@ namespace llvm { DIType createTemporaryType(); DIType createTemporaryType(DIFile F); + /// createForwardDecl - Create a temporary forward-declared type. + DIType createForwardDecl(unsigned Tag, StringRef Name, DIFile F, + unsigned Line); + /// retainType - Retain DIType in a module even if it is not referenced /// through debug info anchors. void retainType(DIType T); diff --git a/lib/Analysis/DIBuilder.cpp b/lib/Analysis/DIBuilder.cpp index 4560371..53a293a 100644 --- a/lib/Analysis/DIBuilder.cpp +++ b/lib/Analysis/DIBuilder.cpp @@ -669,6 +669,28 @@ DIType DIBuilder::createTemporaryType(DIFile F) { return DIType(Node); } +/// createForwardDecl - Create a temporary forward-declared type that +/// can be RAUW'd if the full type is seen. +DIType DIBuilder::createForwardDecl(unsigned Tag, StringRef Name, DIFile F, + unsigned Line) { + // Create a temporary MDNode. + Value *Elts[] = { + GetTagConstant(VMContext, Tag), + NULL, // TheCU + MDString::get(VMContext, Name), + F, + ConstantInt::get(Type::getInt32Ty(VMContext), Line), + // To ease transition include sizes etc of 0. + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), + DIDescriptor::FlagFwdDecl) + }; + MDNode *Node = MDNode::getTemporary(VMContext, Elts); + return DIType(Node); +} + /// getOrCreateArray - Get a DIArray, create one if required. DIArray DIBuilder::getOrCreateArray(ArrayRef<Value *> Elements) { if (Elements.empty()) { |