[Bug rtl-optimization/50107] [IRA, i386] allocates regiters in very non-optimal way

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50107

--- Comment #8 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2011-08-18 
14:56:46 UTC ---
Author: vmakarov
Date: Thu Aug 18 14:56:36 2011
New Revision: 177865

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177865
Log:
2011-08-17  Vladimir Makarov  <vmaka...@redhat.com>

    PR rtl-optimization/50107
    * ira-int.h (ira_hard_reg_not_in_set_p): Remove.
    (ira_hard_reg_in_set_p): New.

    * ira-color.c (calculate_saved_nregs): New.
    (assign_hard_reg): Use it.  Set up allocated_hard_reg_p for all
    hard regs.
    (allocno_reload_assign, fast_allocation): Use
    ira_hard_reg_set_intersection_p instead of
    ira_hard_reg_not_in_set_p.

    * ira.c (setup_reg_renumber): Use
    ira_hard_reg_set_intersection_p instead of
    ira_hard_reg_not_in_set_p.
    (setup_allocno_assignment_flags, calculate_allocation_cost): Use
    ira_hard_reg_in_set_p instead of ira_hard_reg_not_in_set_p.

    * ira-costs.c (ira_tune_allocno_costs): Use
    ira_hard_reg_set_intersection_p instead of
    ira_hard_reg_not_in_set_p.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira-color.c
    trunk/gcc/ira-costs.c
    trunk/gcc/ira-int.h
    trunk/gcc/ira.c