0a3fdd30e5
The NYI diagnostic in getFunctionTypeForVTable showed up a few times in testing, so this patch is attempting to fix that up. The reproducer here is a function type for a vtable that has an incomplete type in it(return or parameter). Classic codegen chooses to represent this as an opaque type. This patch instead removes the special v-table handling here, so that we can instead just represent the types as incomplete record types. At the moment, this patch ends up lowering incomplete types as 'empty' types in LLVM-IR, which we may find we need to modify in the future, however at the moment, it seems to work. This patch ALSO changes the definition of RecordType::isSized to only be true for complete types, which prevents a number of other things from attempting to add attributes/check the size of the type/etc, but those are irrelevant for the purposes of vtable emission.
C language Family Front-end
Welcome to Clang.
This is a compiler front-end for the C family of languages (C, C++ and Objective-C) which is built as part of the LLVM compiler infrastructure project.
Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer.
If you're interested in more (including how to build Clang) it is best to read the relevant websites. Here are some pointers:
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Information on Clang: http://clang.llvm.org/
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Building and using Clang: http://clang.llvm.org/get_started.html
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Clang Static Analyzer: http://clang-analyzer.llvm.org/
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Information on the LLVM project: http://llvm.org/
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If you have questions or comments about Clang, a great place to discuss them is on the Clang forums:
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If you find a bug in Clang, please file it in the LLVM bug tracker: