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, 3 insertions, 8 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index 9650863..e2dd4d2 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -9111,7 +9111,9 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
 	}
 
       if (TREE_CODE_CLASS (code) == tcc_unary
-	  || code == COMPONENT_REF || code == INDIRECT_REF)
+	  || code == BIT_FIELD_REF
+	  || code == COMPONENT_REF
+	  || code == INDIRECT_REF)
 	return expand_expr (treeop0, const0_rtx, VOIDmode,
 			    modifier);
 
@@ -9123,13 +9125,6 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
 	  expand_expr (treeop1, const0_rtx, VOIDmode, modifier);
 	  return const0_rtx;
 	}
-      else if (code == BIT_FIELD_REF)
-	{
-	  expand_expr (treeop0, const0_rtx, VOIDmode, modifier);
-	  expand_expr (treeop1, const0_rtx, VOIDmode, modifier);
-	  expand_expr (treeop2, const0_rtx, VOIDmode, modifier);
-	  return const0_rtx;
-	}
 
       target = 0;
     }