[LLVMbugs] [Bug 21089] New: Itanium ABI: CodeGen crash during initialization of global variable

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=21089

            Bug ID: 21089
           Summary: Itanium ABI: CodeGen crash during initialization of
                    global variable
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: david.majnemer at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

consider:

$ cat ~/t.cpp
struct A {
  bool : 1;
  int A::*x;
  bool y;
  A();
};
struct B : A {
  virtual void f();
};
B b;

$ ~/llvm/Debug+Asserts/bin/clang -cc1 -x c++ -triple x86_64-pc-linux t.cpp -S
-o -
clang: ~/llvm/src/lib/IR/Constants.cpp:956:
llvm::ConstantStruct::ConstantStruct(llvm::StructType*,
llvm::ArrayRef<llvm::Constant*>): Assertion `(T->isOpaque() || V[i]->getType()
== T->getElementType(i)) && "Initializer for struct element doesn't match
struct element type!"' failed.
0  clang           0x00000000021aa8db llvm::sys::PrintStackTrace(_IO_FILE*) +
38
1  clang           0x00000000021aab58
2  clang           0x00000000021aa457
3  libpthread.so.0 0x00007f2ff167e340
4  libc.so.6       0x00007f2ff0abbbb9 gsignal + 57
5  libc.so.6       0x00007f2ff0abefc8 abort + 328
6  libc.so.6       0x00007f2ff0ab4a76
7  libc.so.6       0x00007f2ff0ab4b22
8  clang           0x0000000001d24b38
llvm::ConstantStruct::ConstantStruct(llvm::StructType*,
llvm::ArrayRef<llvm::Constant*>) + 330
9  clang           0x0000000001d33f7c
10 clang           0x0000000001d31d0f
11 clang           0x0000000001d2f275
12 clang           0x0000000001d24d38
llvm::ConstantStruct::get(llvm::StructType*, llvm::ArrayRef<llvm::Constant*>) +
434
13 clang           0x0000000002702c1a
14 clang           0x0000000002702ce9
15 clang           0x0000000002702892
16 clang           0x00000000027030a2
clang::CodeGen::CodeGenModule::EmitNullConstant(clang::QualType) + 544
17 clang           0x000000000274f34f
clang::CodeGen::CodeGenModule::EmitGlobalVarDefinition(clang::VarDecl const*) +
513
18 clang           0x000000000274dcfb
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*) + 531
19 clang           0x000000000274d5c0
clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl) + 748
20 clang           0x00000000027542da
clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) + 436
21 clang           0x00000000026d166d
22 clang           0x00000000026bdb7a
23 clang           0x0000000003061c00 clang::ParseAST(clang::Sema&, bool, bool)
+ 550
24 clang           0x000000000238f8d2 clang::ASTFrontendAction::ExecuteAction()
+ 322
25 clang           0x00000000026c032d clang::CodeGenAction::ExecuteAction() +
1467
26 clang           0x000000000238f3ad clang::FrontendAction::Execute() + 139
27 clang           0x000000000235a470
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 770
28 clang           0x000000000249855b
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 993
29 clang           0x000000000110858e cc1_main(llvm::ArrayRef<char const*>,
char const*, void*) + 770
30 clang           0x0000000001101534
31 clang           0x0000000001101ae0 main + 1015
32 libc.so.6       0x00007f2ff0aa6ec5 __libc_start_main + 245
33 clang           0x00000000010fe789
Stack dump:
0.      Program arguments: ~/llvm/Debug+Asserts/bin/clang -cc1 -x c++ -triple
x86_64-pc-linux t.cpp -S -o -

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