invoke.texi (max-stores-to-sink): Document.

        * doc/invoke.texi (max-stores-to-sink): Document.
        * params.h (MAX_STORES_TO_SINK): Define.
        * opts.c (finish_options): Set MAX_STORES_TO_SINK to 0
        if either vectorization or if-conversion is disabled.
        * tree-data-ref.c (dr_equal_offsets_p1): Moved and renamed from
        tree-vect-data-refs.c vect_equal_offsets.
        (dr_equal_offsets_p): New function.
        (find_data_references_in_bb): Remove static.
        * tree-data-ref.h (find_data_references_in_bb): Declare.
        (dr_equal_offsets_p): Likewise.
        * tree-vect-data-refs.c (vect_equal_offsets): Move to
        tree-data-ref.c.
        (vect_drs_dependent_in_basic_block): Update calls to
        vect_equal_offsets.
        (vect_check_interleaving): Likewise.
        * tree-ssa-phiopt.c: Include cfgloop.h and tree-data-ref.h.
        (cond_if_else_store_replacement): Rename to...
        (cond_if_else_store_replacement_1): ... this.  Change arguments
        and documentation.
        (cond_if_else_store_replacement): New function.
        * Makefile.in (tree-ssa-phiopt.o): Adjust dependencies.
        * params.def (PARAM_MAX_STORES_TO_SINK): Define.

From-SVN: r171381

1 files changed, 6 insertions, 0 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index 2c4e7da..165d7ec 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -814,6 +814,12 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set,
 	  opts->x_flag_split_stack = 0;
 	}
     }
+
+  /* Set PARAM_MAX_STORES_TO_SINK to 0 if either vectorization or if-conversion
+     is disabled.  */
+  if (!opts->x_flag_tree_vectorize || !opts->x_flag_tree_loop_if_convert)
+    maybe_set_param_value (PARAM_MAX_STORES_TO_SINK, 0,
+                           opts->x_param_values, opts_set->x_param_values);
 }
 
 #define LEFT_COLUMN	27