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* [Bug sanitizer/63845] New: c-c++-common/asan/bitfield-1.c fails on i?86 -with -fpic
@ 2014-11-13  8:14 ubizjak at gmail dot com
  2014-11-13  8:21 ` [Bug sanitizer/63845] [5 Regression] c-c++-common/asan/bitfield-[12345].c " ubizjak at gmail dot com
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: ubizjak at gmail dot com @ 2014-11-13  8:14 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63845

            Bug ID: 63845
           Summary: c-c++-common/asan/bitfield-1.c fails on i?86 -with
                    -fpic
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ubizjak at gmail dot com
                CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
                    jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
            Target: i686-pc-linux-gnu

Found when running testsuite on x86_64 -m32 with -fpic:

$ ~/gcc-build/gcc/cc1 -quiet -fsanitize=address -m32 -fpic bitfield-1.c 

bitfield-1.c: In function ‘main’:
bitfield-1.c:23:1: internal compiler error: in df_refs_verify, at
df-scan.c:4088
 }
 ^
0x6e9a6b df_refs_verify
        ../../gcc-svn/trunk/gcc/df-scan.c:4088
0x6ed861 df_insn_refs_verify
        ../../gcc-svn/trunk/gcc/df-scan.c:4161
0x6ede02 df_bb_verify
        ../../gcc-svn/trunk/gcc/df-scan.c:4188
0x6f1457 df_scan_verify()
        ../../gcc-svn/trunk/gcc/df-scan.c:4320
0x6df084 df_verify()
        ../../gcc-svn/trunk/gcc/df-core.c:1860
0x6df084 df_analyze_1
        ../../gcc-svn/trunk/gcc/df-core.c:1248
0x8ddbdb ira
        ../../gcc-svn/trunk/gcc/ira.c:5158
0x8ddbdb execute
        ../../gcc-svn/trunk/gcc/ira.c:5507
Please submit a full bug report,


The failure with -O2 is a bit different:

$ ~/gcc-build/gcc/cc1 -quiet -fsanitize=address -m32 -fpic -O2 bitfield-1.c 
bitfield-1.c: In function ‘main’:
bitfield-1.c:23:1: internal compiler error: Segmentation fault
 }
 ^
0xa4ea8f crash_signal
        ../../gcc-svn/trunk/gcc/toplev.c:358
0x6ea7ff df_install_ref
        ../../gcc-svn/trunk/gcc/df-scan.c:2331
0x6edfa5 df_install_refs
        ../../gcc-svn/trunk/gcc/df-scan.c:2413
0x6ee57b df_refs_add_to_chains
        ../../gcc-svn/trunk/gcc/df-scan.c:2466
0x6f07dc df_bb_refs_record(int, bool)
        ../../gcc-svn/trunk/gcc/df-scan.c:3399
0x6f098c df_scan_blocks()
        ../../gcc-svn/trunk/gcc/df-scan.c:629
0x6ddb52 rest_of_handle_df_initialize
        ../../gcc-svn/trunk/gcc/df-core.c:746
Please submit a full bug report,
>From gcc-bugs-return-466609-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Nov 13 08:20:16 2014
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug sanitizer/63845] [5 Regression] c-c++-common/asan/bitfield-1.c fails on i?86 -with -fpic
Date: Thu, 13 Nov 2014 08:20:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idc845

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-11-13
                 CC|                            |mpolacek at gcc dot gnu.org
      Known to work|                            |4.9.2
   Target Milestone|---                         |5.0
            Summary|c-c++-common/asan/bitfield- |[5 Regression]
                   |1.c fails on i?86 -with     |c-c++-common/asan/bitfield-
                   |-fpic                       |1.c fails on i?86 -with
                   |                            |-fpic
     Ever confirmed|0                           |1
      Known to fail|                            |5.0

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.


^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-12-10 16:13 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-11-13  8:14 [Bug sanitizer/63845] New: c-c++-common/asan/bitfield-1.c fails on i?86 -with -fpic ubizjak at gmail dot com
2014-11-13  8:21 ` [Bug sanitizer/63845] [5 Regression] c-c++-common/asan/bitfield-[12345].c " ubizjak at gmail dot com
2014-11-13  9:13 ` izamyatin at gmail dot com
2014-11-20  8:15 ` ienkovich at gcc dot gnu.org
2014-11-20 11:22 ` jakub at gcc dot gnu.org
2014-12-10 16:13 ` ubizjak at gmail dot com

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