http://llvm.org/bugs/show_bug.cgi?id=19562
Bug ID: 19562
Summary: Lots of leaks caused by DBuilder.createForwardDecl()
calls in CGDebugInfo
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: LLVM Codegen
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
LSan reports many leaks below DBuilder.createForwardDecl(). From what I
understand, MDNode::getTemporary() (called by DIBuilder::createForwardDecl())
is special in that it needs a call to MDNode::deleteTemporary() which the other
MDNode::get() functions don't need.
>From what I understand, this is usually called through
DIType::replaceAllUsesWith(). CGDebugInfo::finalize() does call
replaceAllUsesWith(), but only for types in ReplaceMap, and most callers of
createForwardDecl() don't put the result in ReplaceMap. I don't understand the
code well enough to say if that's the bug.
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