Michael Matz <matzmich@cs.tu-berlin.de>

        * dominance.c: New file.
        * Makefile.in (OBJS): Add dominance.o.

        * flow.c (compute_flow_dominators): Remove.
        (compute_immediate_dominators): Remove.
        (compute_immediate_postdominators): Remove.
        * basic-block.h: Remove their prototypes.
        (calculate_dominance_info): Add prototype.

        * dce.c (eliminate_dead_code): Change calls to above functions.
        Don't compute dominators but only immediate dominators.
        * flow.c (flow_loops_find): Change callers.
        * gcse.c (compute_code_hoist_data): Likewise.
        * haifa-sched.c (schedule_insns): Likewise.
        * ifcvt.c (if_convert): Likewise.
        * ssa.c (convert_to_ssa): Likewise, and only compute immediate
        dominators.

From-SVN: r37449

1 files changed, 1 insertions, 8 deletions

diff --git a/gcc/ssa.c b/gcc/ssa.c
index 0bc6dc8..3dabc62 100644
--- a/gcc/ssa.c
+++ b/gcc/ssa.c
@@ -1148,7 +1148,6 @@ convert_to_ssa ()
   sbitmap *evals;
 
   /* Dominator bitmaps.  */
-  sbitmap *dominators;
   sbitmap *dfs;
   sbitmap *idfs;
 
@@ -1164,15 +1163,9 @@ convert_to_ssa ()
   /* Need global_live_at_{start,end} up to date.  */
   life_analysis (get_insns (), NULL, PROP_KILL_DEAD_CODE | PROP_SCAN_DEAD_CODE);
 
-  /* Compute dominators.  */
-  dominators = sbitmap_vector_alloc (n_basic_blocks, n_basic_blocks);
-  compute_flow_dominators (dominators, NULL);
-
   idom = (int *) alloca (n_basic_blocks * sizeof (int));
   memset ((void *)idom, -1, (size_t)n_basic_blocks * sizeof (int));
-  compute_immediate_dominators (idom, dominators);
-
-  sbitmap_vector_free (dominators);
+  calculate_dominance_info (idom, NULL, CDI_DOMINATORS);
 
   if (rtl_dump_file)
     {