[LLVMbugs] [Bug 6990] New: Assert in boost::lexer

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=6990

           Summary: Assert in boost::lexer
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: chris at bubblescope.net
                CC: llvmbugs at cs.uiuc.edu, dgregor at apple.com


Created an attachment (id=4779)
 --> (http://llvm.org/bugs/attachment.cgi?id=4779)
Lexer asserting test

The attached test case is reduced from boost::lexer.

clang: Sema.h:3664: void
clang::Sema::LocalInstantiationScope::InstantiatedLocal(const clang::Decl*,
clang::Decl*): Assertion `(!Stored || Stored == Inst) && "Already instantiated
this local"' failed.
0  clang           0x000000000149a70a
1  clang           0x000000000149a5f1
2  libpthread.so.0 0x00007f5554c9e8f0
3  libc.so.6       0x00007f5553f8ea75 gsignal + 53
4  libc.so.6       0x00007f5553f925c0 abort + 384
5  libc.so.6       0x00007f5553f87941 __assert_fail + 241
6  clang           0x0000000000821c57
7  clang           0x00000000007f93a0
8  clang           0x00000000007f8984
9  clang           0x00000000007fb6b5
10 clang           0x00000000007f892d
11 clang           0x00000000008025d8
12 clang           0x00000000007fbe18
13 clang           0x00000000007fb886
14 clang           0x00000000007f8daa
15 clang           0x00000000007cd0c3
16 clang           0x00000000007ce79c
17 clang           0x00000000007cb849
18 clang           0x0000000000819309
19 clang           0x0000000000803be3
20 clang           0x00000000007fc0f4
21 clang           0x00000000007fb886
22 clang           0x00000000007f8daa
23 clang           0x000000000082891f
24 clang           0x00000000008306af
25 clang           0x000000000082cff0
26 clang           0x00000000007f9b23
27 clang           0x00000000007fa554
28 clang           0x000000000083a817
29 clang           0x000000000083abbe
30 clang           0x00000000006fd22f
31 clang           0x00000000006fd6fd
32 clang           0x0000000000a6aa3a
33 clang           0x0000000000a6a6b1
34 clang           0x0000000000a6c070
35 clang           0x0000000000a6a35c
36 clang           0x0000000000a5e9da
37 clang           0x0000000000a55ea1
38 clang           0x0000000000a562e7
39 clang           0x0000000000a55c76
40 clang           0x0000000000a5554d
41 clang           0x000000000068fc00
42 clang           0x0000000000437014
43 clang           0x0000000000436c7f
44 clang           0x00000000004212ff
45 clang           0x0000000000409172
46 clang           0x000000000040dce2 main + 259
47 libc.so.6       0x00007f5553f79c4d __libc_start_main + 253
48 clang           0x0000000000407b49
Stack dump:
0.      Program arguments: /usr/local/bin/clang -cc1 -triple
x86_64-unknown-linux-gnu -S -disable-free -main-file-name t.cc
-mrelocation-model static -mdisable-fp-elim -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -resource-dir /usr/local/lib/clang/2.0
-ferror-limit 19 -ftemplate-backtrace-limit 10 -fmessage-length 166
-fexceptions -fgnu-runtime -fdiagnostics-show-option -fcolor-diagnostics -o
/tmp/cc-xpRayb.s -x c++ t.cc 
1.      t.cc:17:1: current parser token '{'
2.      t.cc:16:1: parsing struct/union/class body 'r'
clang: error: compiler command failed due to signal 6 (use -v to see
invocation)

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