[LLVMbugs] [Bug 13629] New: Assertion failed when using -Wno-ignored-attributes : Cannot map errors into warnings!"

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13629

             Bug #: 13629
           Summary: Assertion failed when using  -Wno-ignored-attributes :
                    Cannot map errors into warnings!"
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Frontend
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: nicolasweber at gmx.de
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Doesn't even need a source file (but happens with one too):

hummer:src thakis$ third_party/llvm-build/Release+Asserts/bin/clang
-Wno-ignored-attributes
Assertion failed: ((Diags->isBuiltinWarningOrExtension(Diag) || (Map ==
diag::MAP_FATAL || Map == diag::MAP_ERROR)) && "Cannot map errors into
warnings!"), function setDiagnosticMapping, file
/Volumes/MacintoshHD2/src/chrome-git/src/third_party/llvm/tools/clang/lib/Basic/Diagnostic.cpp,
line 167.
0  clang             0x00000001015c33b2 PrintStackTrace(void*) + 34
1  clang             0x00000001015c37f4 SignalHandler(int) + 628
2  libSystem.B.dylib 0x00007fff84c871ba _sigtramp + 26
3  libSystem.B.dylib 0x2f736c6f6f742f6d _sigtramp + 3937123789
4  clang             0x000000010004cc26 abort + 22
5  clang             0x000000010004cc01 __assert_rtn + 81
6  clang             0x0000000100aef9be
clang::DiagnosticsEngine::setDiagnosticMapping(unsigned int,
clang::diag::Mapping, clang::SourceLocation) + 1838
7  clang             0x0000000100aefad1
clang::DiagnosticsEngine::setDiagnosticGroupMapping(llvm::StringRef,
clang::diag::Mapping, clang::SourceLocation) + 113
8  clang             0x00000001000e2340
clang::ProcessWarningOptions(clang::DiagnosticsEngine&,
clang::DiagnosticOptions const&) + 1152
9  clang             0x0000000100055910 main + 1328
10 clang             0x000000010004f964 start + 52
Stack dump:
0.    Program arguments: third_party/llvm-build/Release+Asserts/bin/clang
-Wno-ignored-attributes 
Illegal instruction

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