[Bug middle-end/54146] Very slow compile with attribute((flatten))

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54146

--- Comment #36 from Steven Bosscher <steven at gcc dot gnu.org> 2012-08-08 
17:39:49 UTC ---
Author: steven
Date: Wed Aug  8 17:39:46 2012
New Revision: 190235

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190235
Log:
    PR middle-end/54146
    * gimpify.c (gimplify_body): Only verify_gimple_in_seq with
    checking enabled.
    * tree-ssa-loop-manip.c (add_exit_phis_var): Assert that var is
    a gimple_reg if checking is enabled.
    (find_uses_to_rename_stmt): Only look at non-virtual USE operands.
    * tree-into-ssa (compute_global_livein): Change the worklist
    type from an array to a VEC.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/tree-into-ssa.c
    trunk/gcc/tree-ssa-loop-manip.c