./:

[pf3gnuchains/gcc-fork.git] / gcc / tree-ssa-loop-im.c

diff --git a/gcc/tree-ssa-loop-im.c b/gcc/tree-ssa-loop-im.c
index 527b810..3cdabd6 100644 (file)
--- a/gcc/tree-ssa-loop-im.c
+++ b/gcc/tree-ssa-loop-im.c
@@ -362,7 +362,7 @@ movement_possibility (gimple stmt)
   if (gimple_get_lhs (stmt) == NULL_TREE)
     return MOVE_IMPOSSIBLE;
 
-  if (!ZERO_SSA_OPERANDS (stmt, SSA_OP_VIRTUAL_DEFS))
+  if (gimple_vdef (stmt))
     return MOVE_IMPOSSIBLE;
 
   if (stmt_ends_bb_p (stmt)
@@ -681,7 +681,7 @@ determine_max_movement (gimple stmt, bool must_preserve_exec)
     if (!add_dependency (val, lim_data, loop, true))
       return false;
 
-  if (!ZERO_SSA_OPERANDS (stmt, SSA_OP_VIRTUAL_USES))
+  if (gimple_vuse (stmt))
     {
       mem_ref_p ref = mem_ref_in_stmt (stmt);
 
@@ -694,7 +694,7 @@ determine_max_movement (gimple stmt, bool must_preserve_exec)
        }
       else
        {
-         FOR_EACH_SSA_TREE_OPERAND (val, stmt, iter, SSA_OP_VIRTUAL_USES)
+         if ((val = gimple_vuse (stmt)) != NULL_TREE)
            {
              if (!add_dependency (val, lim_data, loop, false))
                return false;
@@ -763,6 +763,7 @@ rewrite_reciprocal (gimple_stmt_iterator *bsi)
 {
   gimple stmt, stmt1, stmt2;
   tree var, name, lhs, type;
+  tree real_one;
 
   stmt = gsi_stmt (*bsi);
   lhs = gimple_assign_lhs (stmt);
@@ -770,9 +771,24 @@ rewrite_reciprocal (gimple_stmt_iterator *bsi)
 
   var = create_tmp_var (type, "reciptmp");
   add_referenced_var (var);
+  DECL_GIMPLE_REG_P (var) = 1;
+
+  /* For vectors, create a VECTOR_CST full of 1's.  */
+  if (TREE_CODE (type) == VECTOR_TYPE)
+    {
+      int i, len;
+      tree list = NULL_TREE;
+      real_one = build_real (TREE_TYPE (type), dconst1);
+      len = TYPE_VECTOR_SUBPARTS (type);
+      for (i = 0; i < len; i++)
+       list = tree_cons (NULL, real_one, list);
+      real_one = build_vector (type, list);
+    }
+  else
+    real_one = build_real (type, dconst1);
 
   stmt1 = gimple_build_assign_with_ops (RDIV_EXPR,
-               var, build_real (type, dconst1), gimple_assign_rhs2 (stmt));
+               var, real_one, gimple_assign_rhs2 (stmt));
   name = make_ssa_name (var, stmt1);
   gimple_assign_set_lhs (stmt1, name);
 
@@ -1064,7 +1080,7 @@ move_computations (void)
   fini_walk_dominator_tree (&walk_data);
 
   gsi_commit_edge_inserts ();
-  if (need_ssa_update_p ())
+  if (need_ssa_update_p (cfun))
     rewrite_into_loop_closed_ssa (NULL, TODO_update_ssa);
 }
 
@@ -1293,13 +1309,12 @@ gather_mem_refs_stmt (struct loop *loop, gimple stmt)
   hashval_t hash;
   PTR *slot;
   mem_ref_p ref;
-  ssa_op_iter oi;
   tree vname;
   bool is_stored;
   bitmap clvops;
   unsigned id;
 
-  if (ZERO_SSA_OPERANDS (stmt, SSA_OP_ALL_VIRTUALS))
+  if (!gimple_vuse (stmt))
     return;
 
   mem = simple_mem_ref_in_stmt (stmt, &is_stored);
@@ -1331,14 +1346,14 @@ gather_mem_refs_stmt (struct loop *loop, gimple stmt)
   if (is_stored)
     mark_ref_stored (ref, loop);
 
-  FOR_EACH_SSA_TREE_OPERAND (vname, stmt, oi, SSA_OP_VIRTUAL_USES)
+  if ((vname = gimple_vuse (stmt)) != NULL_TREE)
     bitmap_set_bit (ref->vops, DECL_UID (SSA_NAME_VAR (vname)));
   record_mem_ref_loc (ref, loop, stmt, mem);
   return;
 
 fail:
   clvops = VEC_index (bitmap, memory_accesses.clobbered_vops, loop->num);
-  FOR_EACH_SSA_TREE_OPERAND (vname, stmt, oi, SSA_OP_VIRTUAL_USES)
+  if ((vname = gimple_vuse (stmt)) != NULL_TREE)
     bitmap_set_bit (clvops, DECL_UID (SSA_NAME_VAR (vname)));
 }
 
@@ -1779,6 +1794,10 @@ gen_lsm_tmp_name (tree ref)
       lsm_tmp_name_add ("R");
       break;
 
+    case INTEGER_CST:
+      /* Nothing.  */
+      break;
+
     default:
       gcc_unreachable ();
     }