r125329 - in /branches/autovect-branch/gcc: Cha...

[dorit at gcc dot gnu dot org]

Author: dorit
Date: Tue Jun  5 09:34:37 2007
New Revision: 125329

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125329
Log:
        * tree-scalar-evolutions.c (number_of_latch_executions_1): New.
        Contains code that was factored out from number_of_latch_executions.
        (number_of_latch_executions): Call number_of_latch_executions_1
        instead of code that was factored out.
        (number_of_exit_cond_executions): Takes additional argument
        may_be_zero. Call  number_of_latch_executions_1 instead of
        number_of_latch_executions.
        * tree-scalar-evolutions.h (number_of_latch_executions_1): New.
        (number_of_exit_cond_executions): Takes additional argument.
        * tree-vect-analyze.c (vect_analyze_operations): Avoid vectorization
        in case the loop-bound is a COND_EXPR and peeling needs to be done.
        (vect_get_loop_niters): Call number_of_exit_cond_executions with
        additional argument may_be_zero. Use it to build a (potentially)
        conditional expression for the loop niters.

        * tree-vect-transform.c (vect_generate_tmps_on_preheader): Remove
        redundant code.


Modified:
    branches/autovect-branch/gcc/ChangeLog.autovect
    branches/autovect-branch/gcc/tree-scalar-evolution.c
    branches/autovect-branch/gcc/tree-scalar-evolution.h
    branches/autovect-branch/gcc/tree-vect-analyze.c
    branches/autovect-branch/gcc/tree-vect-transform.c