[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 #62 from Steven Bosscher <steven at gcc dot gnu.org> 2012-10-15 21:32:04 UTC ---
Author: steven
Date: Mon Oct 15 21:31:57 2012
New Revision: 192476

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192476
Log:
    Backport from trunk (r190222):

    PR tree-optimization/54146
    * ifcvt.c: Include pointer-set.h.
    (cond_move_process_if_block): Change type of then_regs and
    else_regs from alloca'd array to pointer_sets.
    (check_cond_move_block): Update for this change.
    (cond_move_convert_if_block): Likewise.
    * Makefile.in: Fix dependencies for ifcvt.o.


Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/Makefile.in
    branches/gcc-4_7-branch/gcc/ifcvt.c