[Bug middle-end/45379] [4.6 Regression] ~10% slowdown on test_fpu at revision 163278

[rguenth at gcc dot gnu dot org]

------- Comment #10 from rguenth at gcc dot gnu dot org  2010-08-24 13:25 
-------
Subject: Bug 45379

Author: rguenth
Date: Tue Aug 24 13:25:25 2010
New Revision: 163519

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163519
Log:
2010-08-24  Richard Guenther  <rguent...@suse.de>

        PR middle-end/45379
        * tree-ssa-address.c (create_mem_ref_raw): Drop to MEM_REF
        if addr->index is NULL or zero.
        * tree-ssa-alias.c (indirect_refs_may_alias_p): Handle
        TARGET_MEM_REF more properly.
        (indirect_ref_may_alias_decl_p): Likewise.
        * emit-rtl.c (set_mem_attributes_minus_bitpos): Keep TARGET_MEM_REFs.
        * alias.c (ao_ref_from_mem): Handle TARGET_MEM_REF more
        properly.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/alias.c
    trunk/gcc/emit-rtl.c
    trunk/gcc/tree-ssa-address.c
    trunk/gcc/tree-ssa-alias.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45379