[Bug middle-end/49308] [4.7 Regression] segfault in rest_of_handle_ud_dce () at gcc/gcc/dce.c:518

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49308

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-06-09 
07:46:32 UTC ---
Author: jakub
Date: Thu Jun  9 07:46:28 2011
New Revision: 174839

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174839
Log:
    PR middle-end/49308
    * dce.c (reset_unmarked_insns_debug_uses): Avoid shadowing insn
    variable.  After resetting and rescanning insn continue with previous
    statement.

    * gfortran.dg/pr49308.f90: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr49308.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dce.c
    trunk/gcc/testsuite/ChangeLog