[LLVMbugs] [Bug 19809] New: Assertion `(Encoding == dwarf::DW_ATE_unsigned || Encoding == dwarf::DW_ATE_unsigned_char || Encoding == dwarf::DW_ATE_signed || Encoding == dwarf::DW_ATE_signed_char || Encoding == dwarf::DW_ATE_UTF || Encoding == dwarf::DW_ATE_boolean)...

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19809

            Bug ID: 19809
           Summary: Assertion `(Encoding == dwarf::DW_ATE_unsigned ||
                    Encoding == dwarf::DW_ATE_unsigned_char || Encoding ==
                    dwarf::DW_ATE_signed || Encoding ==
                    dwarf::DW_ATE_signed_char || Encoding ==
                    dwarf::DW_ATE_UTF || Encoding ==
                    dwarf::DW_ATE_boolean)...
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: DebugInfo
          Assignee: unassignedbugs at nondot.org
          Reporter: mcrosier at codeaurora.org
                CC: aprantl at apple.com, echristo at gmail.com,
                    llvmbugs at cs.uiuc.edu, mren at apple.com,
                    t.p.northover at gmail.com
    Classification: Unclassified

Test case:

template <class> class t {
public:
  double i;
};

int main() {
 double t<double>::*a = &t<double>::i;
}

Reproduce with:
clang++ -cc1 -triple arm64-none-linux-gnu -emit-obj -disable-free
-main-file-name foo.cpp -mrelocation-model static -mdisable-fp-elim
-fmath-errno -masm-verbose -mconstructor-aliases -fuse-init-array -target-cpu
cortex-a53 -target-feature +neon -target-abi aapcs -target-cpu cortex-a53 -g -D
"__arm__" -D "__extern_always_inline=inline" -O2 -trigraphs -fdeprecated-macro
-ferror-limit 19 -fmessage-length 270 -mstackrealign -fno-signed-char
-fobjc-runtime=gcc 
-fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics
-vectorize-loops -vectorize-slp -x c++ foo.ii

Backtrace:
clang-3.5: /llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp:768: bool
isUnsignedDIType(llvm::DwarfDebug*, llvm::DIType): Assertion `(Encoding ==
dwarf::DW_ATE_unsigned || Encoding == dwarf::DW_ATE_unsigned_char || Encoding
== dwarf::DW_ATE_signed || Encoding == dwarf::DW_ATE_signed_char || Encoding ==
dwarf::DW_ATE_UTF || Encoding == dwarf::DW_ATE_boolean) && "Unsupported
encoding"' failed.
0  clang-3.5       0x0000000000d01092 llvm::sys::PrintStackTrace(_IO_FILE*) +
34
1  clang-3.5       0x0000000000d00cb4
2  libpthread.so.0 0x00007ffabe1aa8f0
3  libc.so.6       0x00007ffabd48ba75 gsignal + 53
4  libc.so.6       0x00007ffabd48f5c0 abort + 384
5  libc.so.6       0x00007ffabd484941 __assert_fail + 241
6  clang-3.5       0x0000000000f4197a
7  clang-3.5       0x0000000000f41892
8  clang-3.5       0x0000000000f419a2
llvm::DwarfUnit::addConstantValue(llvm::DIE&, llvm::MachineOperand const&,
llvm::DIType) + 34
9  clang-3.5       0x0000000000f456f3
llvm::DwarfUnit::constructVariableDIEImpl(llvm::DbgVariable const&,
llvm::AbstractOrInlined) + 851
10 clang-3.5       0x0000000000f45771
llvm::DwarfUnit::constructVariableDIE(llvm::DbgVariable&,
llvm::AbstractOrInlined) + 17
11 clang-3.5       0x0000000000f2b2bd
llvm::DwarfDebug::createScopeChildrenDIE(llvm::DwarfCompileUnit&,
llvm::LexicalScope*, llvm::SmallVectorImpl<std::unique_ptr<llvm::DIE,
std::default_delete<llvm::DIE> > >&) + 461
12 clang-3.5       0x0000000000f2b6ba
llvm::DwarfDebug::createAndAddScopeChildren(llvm::DwarfCompileUnit&,
llvm::LexicalScope*, llvm::DIE&) + 58
13 clang-3.5       0x0000000000f2bc6d
llvm::DwarfDebug::constructSubprogramScopeDIE(llvm::DwarfCompileUnit&,
llvm::LexicalScope*) + 125
14 clang-3.5       0x0000000000f36729
15 clang-3.5       0x0000000000f1a650 llvm::AsmPrinter::EmitFunctionBody() +
4528
16 clang-3.5       0x00000000007edd7b
17 clang-3.5       0x0000000000a7b80f
llvm::FPPassManager::runOnFunction(llvm::Function&) + 655
18 clang-3.5       0x0000000000a7bceb
llvm::FPPassManager::runOnModule(llvm::Module&) + 43
19 clang-3.5       0x0000000000a7c02d
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 797
20 clang-3.5       0x00000000012f8cde
clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions
const&, clang::TargetOptions const&, clang::LangOptions const&,
llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::raw_ostream*) +
2990
21 clang-3.5       0x00000000012f378f
22 clang-3.5       0x000000000175689b clang::ParseAST(clang::Sema&, bool, bool)
+ 507
23 clang-3.5       0x00000000012f433b clang::CodeGenAction::ExecuteAction() +
59
24 clang-3.5       0x0000000000e5b676 clang::FrontendAction::Execute() + 150
25 clang-3.5       0x0000000000e3dd20
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 352
26 clang-3.5       0x0000000000ed8611
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1921
27 clang-3.5       0x000000000064f2f8 cc1_main(char const**, char const**, char
const*, void*) + 1016
28 clang-3.5       0x000000000064bab3 main + 755
29 libc.so.6       0x00007ffabd476c4d __libc_start_main + 253
30 clang-3.5       0x000000000064a699
Stack dump:

1.      <eof> parser at end of file
2.      Code generation
3.      Running pass 'Function Pass Manager' on module 'foo.ii'.
4.      Running pass 'ARM64 Assembly Printer' on function '@main'

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