[Bug rtl-optimization/51667] [4.7 Regression] new FAIL: 27_io/basic_*stream/* execution test with -m32

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51667

--- Comment #17 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-12-27 16:25:52 UTC ---
Author: ebotcazou
Date: Tue Dec 27 16:25:43 2011
New Revision: 182694

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182694
Log:
    PR rtl-optimization/51667
    * ree.c (insn_merge_code): Delete.
    (is_insn_merge_attempted): Likewise.
    (get_insn_status): Likewise.
    (set_insn_status): Likewise.
    (struct ext_cand): Add CODE and MODE fields.
    (combine_set_extend): Rename to...
    (combine_set_extension): ...this.  Use above fields and tidy up.
    (transform_ifelse): Likewise.
    (get_defs): Return the chain of definitions.
    (is_this_a_cmove): Merge into...
    (is_cond_copy_insn): ...this.  Return bool.
    (make_defs_and_copies_lists): Adjust calls to get_defs and simplify.
    (merge_def_and_ext): Adjust call to combine_set_extend.
    (combine_reaching_defs): Remove calls to {g|s}et_insn_status.
    (struct extend_info): Rename to...
    (struct re_info): ...this.  Add DEF_MAP field.
    (add_ext_candidate): Merge into...
    (add_removable_extension): ...this.  Adjust calls to get_defs.  Ensure
    reaching definitions are associated with only one kind of extension.
    (find_removable_extensions): Create and destroy the definition map.
    (find_and_remove_re): Return void.  Change 'long' variables to 'int'.
    Do not deal with is_insn_merge_attempted.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/20111227-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ree.c
    trunk/gcc/testsuite/ChangeLog