[LLVMbugs] [Bug 4129] New: clang parser crash: terminate called after throwing an instance of 'std::out_of_range' what(): basic_string::erase

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=4129

           Summary: clang parser crash: terminate called after throwing an
                    instance of 'std::out_of_range'
                    what():  basic_string::erase
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: edwintorok at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=2920)
 --> (http://llvm.org/bugs/attachment.cgi?id=2920)
testcase-min.i

$ clang testcase-min.i
testcase-min.i:1:62: warning: declaration of 'struct bts_tracer' will not be
visible outside of this function

 struct bts_trace {  struct ds_trace ds;  int (*read)(struct bts_tracer
*tracer, const void *at,       struct bts_struct ...
                                                             ^                  
testcase-min.i:1:111: warning: declaration of 'struct bts_struct' will not be
visible outside of this function              

 struct bts_trace {  struct ds_trace ds;  int (*read)(struct bts_tracer
*tracer, const void *at,       struct bts_struct ...
                                                                               
                              ^             
testcase-min.i:1:150: warning: declaration of 'struct bts_tracer' will not be
visible outside of this function              
terminate called after throwing an instance of 'std::out_of_range'              
  what():  basic_string::erase                                                  
0   clang-cc        0x000000000105dfdf                                          
1   clang-cc        0x000000000105e3d9                                          
2   libpthread.so.0 0x00007f7792b0a7b0                                          
3   libc.so.6       0x00007f7791e2a115 gsignal + 53                             
4   libc.so.6       0x00007f7791e2b633 abort + 387                              
5   libstdc++.so.6  0x00007f77926b0e65 __gnu_cxx::__verbose_terminate_handler()
+ 277                                       
6   libstdc++.so.6  0x00007f77926af256                                          
7   libstdc++.so.6  0x00007f77926af283                                          
8   libstdc++.so.6  0x00007f77926af37e                                          
9   libstdc++.so.6  0x00007f779264ec17 std::__throw_out_of_range(char const*) +
103                                         
10  clang-cc        0x00000000006acfb8
11  clang-cc        0x00000000006ae1ec
12  clang-cc        0x00000000006af60b
13  clang-cc        0x000000000078c285
14  clang-cc        0x00000000005ad925
15  clang-cc        0x00000000005b67a2
16  clang-cc        0x00000000007310d5
17  clang-cc        0x00000000007252a1
18  clang-cc        0x0000000000726077
19  clang-cc        0x0000000000727824
clang::Parser::ParseDirectDeclarator(clang::Declarator&) + 676
20  clang-cc        0x00000000007230aa
21  clang-cc        0x0000000000728963
22  clang-cc        0x000000000072978b
23  clang-cc        0x00000000007316b6
24  clang-cc        0x00000000007252a1
25  clang-cc        0x000000000071d482
26  clang-cc        0x000000000071edf2
27  clang-cc        0x000000000071f206
28  clang-cc        0x00000000005ad5e3
29  clang-cc        0x000000000047f19f
30  clang-cc        0x0000000000480631 main + 1985
31  libc.so.6       0x00007f7791e165a6 __libc_start_main + 230
32  clang-cc        0x000000000042b5a9
Stack dump:
0.      Program arguments: /usr/local/bin/../libexec/clang-cc -triple
x86_64-unknown-linux-gnu -S -disable-free -main-file-name testcase-min.i
--relocation-model static --disable-fp-elim --unwind-tables=1 --fmath-errno=1
-fdiagnostics-show-option -o /tmp/cc-ZzEXpP.s -x cpp-output testcase-min.i
1.      testcase-min.i:1:161: current parser token '*'
2.      testcase-min.i:1:2: parsing struct/union body 'bts_trace'


If I reformat the input using topformflat clang no longer crashes, it only
crashes if everything is on one line.


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