[Bug debug/45849] [4.6 Regression] ICE: in emit_note_insn_var_location, at var-tracking.c:7336 with -O -g

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45849

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-10-04 
22:02:32 UTC ---
Author: jakub
Date: Mon Oct  4 22:02:28 2010
New Revision: 164962

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164962
Log:
    PR debug/45849
    * var-tracking.c (strip_pointer_flags): New function.
    (emit_note_insn_var_location): If rtx_equal_p check failed,
    retry on locations simplified with simplify_replace_fn_rtx
    and strip_pointer_flags as its callback.

    * gcc.dg/debug/pr45849.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/debug/pr45849.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/var-tracking.c