* common.opt: Add option ftree-vect-loop-version.

        * params.def: Add --param vect-max-version-checks.
        * doc/invoke.texi: Document ftree-vect-loop-version and
        --param vect-max-version-checks.
        * tree-vectorizer.h (_loop_vec_info): Add ptr_mask and
        may_misalign_stmts and defines for accessors.
        * tree-vectorizer.c : (new_loop_vec_info): VEC_alloc for
        LOOP_VINFO_MAY_MISALIGN_STMTS.
        (destroy_loop_vec_info): VEC_free for
        LOOP_VINFO_MAY_MISALIGN_STMTS.
        * tree-vect-analyze.c (vect_compute_data_ref_alignment):
        Update documentation.
        (vect_update_misalignment_for_peel): New.
        (vect_enhance_data_refs_alignment): Update to choose loop
        peeling or loop versioning if appropriate for the (potentially)
        unaligned data references in the loop.
        (vect_analyze_data_refs_alignment): Remove call to
        vect_enhance_data_refs_alignment so the checks can be done
        earlier.
        (vect_analyze_loop): Add call to vect_enhance_data_refs_alignment
        and move up call to vect_analyze_data_refs_alignment.
        * tree-vect-transform.c (vect_create_cond_for_align_checks): New.
        (vect_transform_loop): Add call to loop_version.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@103941 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 5 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/vect.exp b/gcc/testsuite/gcc.dg/vect/vect.exp
index ccfe0543aa8..bfa6dced9b1 100644
--- a/gcc/testsuite/gcc.dg/vect/vect.exp
+++ b/gcc/testsuite/gcc.dg/vect/vect.exp
@@ -102,6 +102,11 @@ lappend DEFAULT_VECTCFLAGS "-ftrapv"
 dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/trapv-vect*.\[cS\]]]  \
 	"" $DEFAULT_VECTCFLAGS
 
+# With -Os
+lappend DEFAULT_VECTCFLAGS "-Os"
+dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/Os-vect-*.\[cS\]]]  \
+        "" $DEFAULT_VECTCFLAGS
+
 # Clean up.
 set dg-do-what-default ${save-dg-do-what-default}