[Bug rtl-optimization/41619] [4.4/4.5/4.6 regression] ICE in insert_save (caller-save.c) for SPEC CPU2000's 252.eon

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41619

--- Comment #12 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-05-26 12:43:10 UTC ---
Author: ebotcazou
Date: Thu May 26 12:43:06 2011
New Revision: 174278

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174278
Log:
    Backport from mainline
    2011-01-21  Jeff Law  <law@redhat.com>

    PR rtl-optimization/41619
    * caller-save.c (setup_save_areas): Break out code to determine
    which hard regs are live across calls by examining the reload chains
    so that it is always used.
    Eliminate code which checked REG_N_CALLS_CROSSED.

Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/caller-save.c