[LLVMbugs] [Bug 11849] New: trunk doesn't work with ObjC++: Assertion failed: (D && "Cannot get layout of forward declarations!")

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=11849

             Bug #: 11849
           Summary: trunk doesn't work with ObjC++: Assertion failed: (D
                    && "Cannot get layout of forward declarations!")
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: mayer.julian at googlemail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


hello all. i wanted to try trunk to see if a bad codegen bug in clang is fixed
but i can't get it to work with my project from within xcode it works fine for
some C and ObjC files but fails for my ObjC++ and one C++ file, it breaks with
this assertion:


Assertion failed: (D && "Cannot get layout of forward declarations!"), function
getASTRecordLayout, file RecordLayoutBuilder.cpp, line 2066.
0  clang             0x00000001014851c2
llvm::SmallVectorImpl<char>::swap(llvm::SmallVectorImpl<char>&) + 14194
1  clang             0x00000001014857b9
llvm::SmallVectorImpl<char>::swap(llvm::SmallVectorImpl<char>&) + 15721
2  libSystem.B.dylib 0x00007fff84d711ba _sigtramp + 26
3  libSystem.B.dylib 0x0000000102033600 _sigtramp + 2100044896
4  clang             0x0000000101485406
llvm::SmallVectorImpl<char>::swap(llvm::SmallVectorImpl<char>&) + 14774
5  clang             0x00000001014853c7
llvm::SmallVectorImpl<char>::swap(llvm::SmallVectorImpl<char>&) + 14711


full invocation command, assertion details and preprocessed sources attached.

tried trunk llvm+clang from yesterday and today (2 hours ago), same thing.

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