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Subject: [Bug rtl-optimization/54127] [4.7/4.8 Regression] ICE in maybe_record_trace_start with asm goto, --target=powerpc-unknown-linux-gnu
Date: Sun, 16 Sep 2012 17:46:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54127

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |powerpc*-*-*
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-09-16
                 CC|                            |jakub at gcc dot gnu.org
            Summary|[4.7] ICE in                |[4.7/4.8 Regression] ICE in
                   |maybe_record_trace_start    |maybe_record_trace_start
                   |with asm goto,              |with asm goto,
                   |--target=powerpc-unknown-li |--target=powerpc-unknown-li
                   |nux-gnu                     |nux-gnu
     Ever Confirmed|0                           |1

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-09-16 17:46:33 UTC ---
Confirmed on 4.8 (see
http://gcc.gnu.org/ml/gcc-testresults/2012-09/msg01501.html).

The test has been added for 4.8 by

Author: jakub
Date: Tue Jun 12 07:52:47 2012
New Revision: 188428

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188428
Log:
    PR rtl-optimization/53589
    * cfgrtl.c (force_nonfallthru_and_redirect): Do asm_goto_edge
    discovery even when e->dest != target.  If any LABEL_REF points
    to e->dest label, redirect it to target's label.

    * gcc.dg/torture/pr53589.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr53589.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgrtl.c
    trunk/gcc/testsuite/ChangeLog

and for 4.7 by

Date: Thu Jun 14 17:49:49 2012
New Revision: 188626

The test compiles with 4.6.3, so marked as 4.7/4.8 regression.