expr.c (expand_expr_real_1): Do not expand operand #1 and #2 of BIT_FIELD_REF for ignored results.

	* expr.c (expand_expr_real_1): Do not expand operand #1 and #2
	of BIT_FIELD_REF for ignored results.
	* fold-const.c (fold_ternary_loc) <BIT_FIELD_REF>: Check that the
	CONSTRUCTOR has vector type before using vector accessors on it.
	* gimplify.c (gimplify_compound_lval): Do not gimplify operand #1 and
	#2 of BIT_FIELD_REF.
	(gimplify_expr) <BIT_FIELD_REF>: Likewise.
	* tree-nested.c (convert_nonlocal_reference_op) <BIT_FIELD_REF>: Do
	not process operand #1 and #2.
	(convert_local_reference_op): Likewise.
	* tree-ssa-pre.c (create_component_ref_by_pieces_1): Remove superfluous
	breaks throughout.
	<BIT_FIELD_REF>: Reuse operand #1 and #2 directly.
	* tree.c (stabilize_reference) <BIT_FIELD_REF>: Do not stabilize
	operand #1 and #2.
	(UPDATE_FLAGS): Do not consider operand #2 of BIT_FIELD_REF.
	(build6_stat): Delete.
	* tree.h (build6_stat, build6, build6_stat_loc, build6_loc): Likewise.
ada/
	* gcc-interface/utils2.c (gnat_stabilize_reference) <BIT_FIELD_REF>: Do
	not stabilize operand #1 and #2.

From-SVN: r189864

1 files changed, 1 insertions, 35 deletions

diff --git a/gcc/tree.c b/gcc/tree.c
index 4fea005..6f9c91d 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -3525,8 +3525,7 @@ stabilize_reference (tree ref)
     case BIT_FIELD_REF:
       result = build_nt (BIT_FIELD_REF,
 			 stabilize_reference (TREE_OPERAND (ref, 0)),
-			 stabilize_reference_1 (TREE_OPERAND (ref, 1)),
-			 stabilize_reference_1 (TREE_OPERAND (ref, 2)));
+			 TREE_OPERAND (ref, 1), TREE_OPERAND (ref, 2));
       break;
 
     case ARRAY_REF:
@@ -3696,8 +3695,6 @@ do { tree _node = (NODE); \
 	  if (TREE_OPERAND (node, 2))
 	    UPDATE_FLAGS (TREE_OPERAND (node, 2));
 	}
-      else if (TREE_CODE (node) == BIT_FIELD_REF)
-	UPDATE_FLAGS (TREE_OPERAND (node, 2));
     }
 
   node = lang_hooks.expr_to_decl (node, &tc, &se);
@@ -3969,37 +3966,6 @@ build5_stat (enum tree_code code, tree tt, tree arg0, tree arg1,
   return t;
 }
 
-tree
-build6_stat (enum tree_code code, tree tt, tree arg0, tree arg1,
-	     tree arg2, tree arg3, tree arg4, tree arg5 MEM_STAT_DECL)
-{
-  bool constant, read_only, side_effects;
-  tree t;
-
-  gcc_assert (code == TARGET_MEM_REF);
-
-  t = make_node_stat (code PASS_MEM_STAT);
-  TREE_TYPE (t) = tt;
-
-  side_effects = TREE_SIDE_EFFECTS (t);
-
-  PROCESS_ARG(0);
-  PROCESS_ARG(1);
-  PROCESS_ARG(2);
-  PROCESS_ARG(3);
-  PROCESS_ARG(4);
-  if (code == TARGET_MEM_REF)
-    side_effects = 0;
-  PROCESS_ARG(5);
-
-  TREE_SIDE_EFFECTS (t) = side_effects;
-  TREE_THIS_VOLATILE (t)
-    = (code == TARGET_MEM_REF
-       && arg5 && TREE_THIS_VOLATILE (arg5));
-
-  return t;
-}
-
 /* Build a simple MEM_REF tree with the sematics of a plain INDIRECT_REF
    on the pointer PTR.  */