[Bug rtl-optimization/37397] IRA performance impact on SPEC CPU 2K/2006

[hjl at gcc dot gnu dot org]

------- Comment #2 from hjl at gcc dot gnu dot org  2008-11-11 00:03 -------
Subject: Bug 37397

Author: hjl
Date: Tue Nov 11 00:02:20 2008
New Revision: 141757

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141757
Log:
2008-11-10  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-optimization/37397
        * ira-int.h (struct ira_allocno): New member bad_spill_p.
        (ALLOCNO_BAD_SPILL_P): New macro.

        * ira-color.c (push_allocnos_to_stack): Check ALLOCNO_BAD_SPILL_P.

        * ira-build.c (ira_create_allocno): Initialize
        ALLOCNO_BAD_SPILL_P.
        (create_cap_allocno, propagate_allocno_info,
        remove_unnecessary_allocnos): Set up or update
        ALLOCNO_BAD_SPILL_P.
        (update_bad_spill_attribute): New function.
        (ira_build): Call it.

        * ira-costs.c (record_reg_classes): Set up ALLOCNO_BAD_SPILL_P.

Modified:
    branches/ira-merge/gcc/ChangeLog.ira
    branches/ira-merge/gcc/ira-build.c
    branches/ira-merge/gcc/ira-color.c
    branches/ira-merge/gcc/ira-costs.c
    branches/ira-merge/gcc/ira-int.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37397