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

[law at gcc dot gnu.org]

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

--- Comment #10 from Jeffrey A. Law <law at gcc dot gnu.org> 2011-01-21 
16:49:34 UTC ---
Author: law
Date: Fri Jan 21 16:49:31 2011
New Revision: 169095

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169095
Log:

    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.

    PR rtl-optimization/41619
    * gcc.dg/pr41619.c: New.


Added:
    trunk/gcc/testsuite/gcc.dg/pr41619.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/caller-save.c
    trunk/gcc/testsuite/ChangeLog