tree-ssa-live.c (calculate_live_on_entry): Ignore virtual variables.

        * tree-ssa-live.c (calculate_live_on_entry): Ignore virtual
        variables.  Simplify slightly by using USE_OP/DEF_OP instead
        of USE_OP_PTR/DEF_OP_PTR and dereferencing the result.

From-SVN: r81832

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ec71bb6eb7101dc8d3393fcb4168f400962fd97a..66e9db272eda43395eddd9b055acfa98d8e33767 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -61,6 +61,10 @@
 
 2004-05-13  Jeff Law  <law@redhat.com>
 
+       * tree-ssa-live.c (calculate_live_on_entry): Ignore virtual
+       variables.  Simplify slightly by using USE_OP/DEF_OP instead
+       of USE_OP_PTR/DEF_OP_PTR and dereferencing the result.
+
        * tree-into-ssa.c (compute_global_livein): Use EXECUTE_IF_SET_IN_BITMAP
        rather than iterating through the blocks testing each bit in
        livein to initialize the worklist.

diff --git a/gcc/tree-ssa-live.c b/gcc/tree-ssa-live.c
index 28c3d578581693a19bc6d4961b286c4702b9f8c5..3a166a7c21caf2ed437a4f625e5fc66fa121eb48 100644 (file)
--- a/gcc/tree-ssa-live.c
+++ b/gcc/tree-ssa-live.c
@@ -551,12 +551,10 @@ calculate_live_on_entry (var_map map)
   basic_block bb;
   bitmap saw_def;
   tree phi, var, stmt;
-  tree *vec;
+  tree op;
   edge e;
   varray_type stack;
   block_stmt_iterator bsi;
-  vuse_optype vuses;
-  vdef_optype vdefs;
   use_optype uses;
   def_optype defs;
   stmt_ann_t ann;
@@ -610,39 +608,16 @@ calculate_live_on_entry (var_map map)
          num = NUM_USES (uses);
          for (i = 0; i < num; i++)
            {
-             vec = USE_OP_PTR (uses, i);
-             add_livein_if_notdef (live, saw_def, *vec, bb);
-           }
-
-         vuses = VUSE_OPS (ann);
-         num = NUM_VUSES (vuses);
-         for (i = 0; i < num; i++)
-           {
-             var = VUSE_OP (vuses, i);
-             add_livein_if_notdef (live, saw_def, var, bb);
-           }
-
-         vdefs = VDEF_OPS (ann);
-         num = NUM_VDEFS (vdefs);
-         for (i = 0; i < num; i++)
-           {
-             var = VDEF_OP (vdefs, i);
-             add_livein_if_notdef (live, saw_def, var, bb);
+             op = USE_OP (uses, i);
+             add_livein_if_notdef (live, saw_def, op, bb);
            }
 
          defs = DEF_OPS (ann);
          num = NUM_DEFS (defs);
          for (i = 0; i < num; i++)
            {
-             vec = DEF_OP_PTR (defs, i);
-             set_if_valid (map, saw_def, *vec);
-           }
-
-         num = NUM_VDEFS (vdefs);
-         for (i = 0; i < num; i++)
-           {
-             var = VDEF_RESULT (vdefs, i);
-             set_if_valid (map, saw_def, var);
+             op = DEF_OP (defs, i);
+             set_if_valid (map, saw_def, op);
            }
        }
     }