[Bug middle-end/33699] [4.3/4.4/4.5 regression], missing optimization on const addr area store

[nemet at gcc dot gnu dot org]

------- Comment #6 from nemet at gcc dot gnu dot org  2009-05-28 07:43 -------
Subject: Bug 33699

Author: nemet
Date: Thu May 28 07:42:52 2009
New Revision: 147944

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=147944
Log:
        PR middle-end/33699
        * target.h (struct gcc_target): Fix indentation.  Add
        const_anchor.
        * target-def.h (TARGET_CONST_ANCHOR): New macro.
        (TARGET_INITIALIZER): Use it.
        * cse.c (CHEAPER): Move it up to the other macros.
        (insert): Rename this ...
        (insert_with_costs): ... to this.  Add cost parameters.  Update
        function comment.
        (insert): New function.  Call insert_with_costs.
        (compute_const_anchors, insert_const_anchor, insert_const_anchors,
        find_reg_offset_for_const, try_const_anchors): New functions.
        (cse_insn): Call try_const_anchors.  Adjust cost of src_related
        when using a const-anchor.  Call insert_const_anchors.
        * config/mips/mips.c (mips_set_mips16_mode): Set
        targetm.const_anchor.
        * doc/tm.texi (Misc): Document TARGET_CONST_ANCHOR.

testsuite/
        * gcc.target/mips/const-anchor-1.c: New test.
        * gcc.target/mips/const-anchor-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/mips/const-anchor-1.c
    trunk/gcc/testsuite/gcc.target/mips/const-anchor-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/mips/mips.c
    trunk/gcc/cse.c
    trunk/gcc/doc/tm.texi
    trunk/gcc/target-def.h
    trunk/gcc/target.h
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33699