builtins.c (fold_builtin_signbit): Use build_zero_cst instead of fold_convert.

gcc/
	* builtins.c (fold_builtin_signbit): Use build_zero_cst instead of
	fold_convert.
	* c-typeck.c (build_function_call_vec): Likewise.
	* cfgexpand.c (expand_debug_expr): Likewise.
	* cgraphunit.c (assemble_thunk): Likewise.
	* config/sparc/sparc.c (sparc_fold_builtin): Likewise.
	* fold-const.c (fold_unary_loc, fold_mult_zconjz): Likewise.
	(fold_binary_loc, fold_ternary_loc): Likewise.
	* gimple-fold.c (get_symbol_constant_value): Likewise.
	* gimple-low.c (lower_builtin_setjmp): Likewise.
	* gimple.c (gimple_cond_get_ops_from_tree): Likewise.
	* gimplify.c (gimplify_init_constructor): Likewise.
	* lambda.h (build_linear_expr): Likewise.
	* omp-low.c (omp_reduction_init): Likewise.
	* tree-inline.c (remap_ssa_name): Likewise.
	* tree-object-size.c (compute_object_sizes): Likewise.
	* tree-sra.c (init_subtree_with_zero): Likewise.
	(sra_ipa_modify_assign): Likewise.
	* tree-ssa-copy.c (propagate_tree_value_into_stmt): Likewise.
	* tree-ssa-reassoc.c (eliminate_duplicate_pair): Likewise.
	(eliminate_plus_minus_pair, eliminate_not_pairs): Likewise.
	(undistribute_ops_list): Likewise.
	* tree-ssa-sccvn.c (vn_reference_lookup_3): Likewise.
	* tree-vect-stmts.c (vectorizable_call): Likewise.
	* tree.c (build_vector_from_ctor, build_one_cst): Likewise.
	(build_zero_cst): Handle more cases directly.  Update comment.

gcc/cp/
	* class.c (build_base_path, add_vcall_offset): Use build_zero_cst
	instead of fold_convert.
	* init.c (build_zero_init): Likewise.
	* typeck.c (cp_build_binary_op): Likewise.

gcc/fortran/
	* trans-decl.c (add_argument_checking): Use build_zero_cst instead of
	fold_convert.
	* trans-expr.c (gfc_conv_missing_dummy, fill_with_spaces): Likewise.
	* trans-stmt.c (gfc_trans_do): Likewise.

From-SVN: r166227

4 files changed, 13 insertions, 11 deletions

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 0bfb03b..24783f5 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,10 @@
+2010-11-02  Nathan Froyd  <froydnj@codesourcery.com>
+
+	* class.c (build_base_path, add_vcall_offset): Use build_zero_cst
+	instead of fold_convert.
+	* init.c (build_zero_init): Likewise.
+	* typeck.c (cp_build_binary_op): Likewise.
+
 2010-11-02  Dodji Seketeli  <dodji@redhat.com>
 
 	PR c++/46170
diff --git a/gcc/cp/class.c b/gcc/cp/class.c
index 7aa6974..ded0a03 100644
--- a/gcc/cp/class.c
+++ b/gcc/cp/class.c
@@ -431,8 +431,7 @@ build_base_path (enum tree_code code,
  out:
   if (null_test)
     expr = fold_build3_loc (input_location, COND_EXPR, target_type, null_test, expr,
-			fold_build1_loc (input_location, NOP_EXPR, target_type,
-				     integer_zero_node));
+			    build_zero_cst (target_type));
 
   return expr;
 }
@@ -8267,8 +8266,7 @@ add_vcall_offset (tree orig_fn, tree binfo, vtbl_init_data *vid)
       /* Find the overriding function.  */
       fn = find_final_overrider (vid->rtti_binfo, binfo, orig_fn);
       if (fn == error_mark_node)
-	vcall_offset = build1 (NOP_EXPR, vtable_entry_type,
-			       integer_zero_node);
+	vcall_offset = build_zero_cst (vtable_entry_type);
       else
 	{
 	  base = TREE_VALUE (fn);
diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index d632816..1f73d14 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -254,7 +254,7 @@ build_zero_init (tree type, tree nelts, bool static_storage_p)
       init = build_constructor (type, v);
     }
   else if (TREE_CODE (type) == VECTOR_TYPE)
-    init = fold_convert (type, integer_zero_node);
+    init = build_zero_cst (type);
   else
     gcc_assert (TREE_CODE (type) == REFERENCE_TYPE);
 
diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index 5f8d321..6a52fc4 100644
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -4047,8 +4047,7 @@ cp_build_binary_op (location_t location,
 	      tree e1 = cp_build_binary_op (location,
 					    EQ_EXPR,
 	  			            pfn0,	
-				      	    fold_convert (TREE_TYPE (pfn0),
-							  integer_zero_node),
+				      	    build_zero_cst (TREE_TYPE (pfn0)),
 					    complain);
 	      tree e2 = cp_build_binary_op (location,
 					    BIT_AND_EXPR, 
@@ -4138,8 +4137,7 @@ cp_build_binary_op (location_t location,
 				       complain);
 	      e2 = cp_build_binary_op (location, EQ_EXPR,
 				       pfn0,
-				       fold_convert (TREE_TYPE (pfn0),
-						     integer_zero_node),
+				       build_zero_cst (TREE_TYPE (pfn0)),
 				       complain);
 	      e2 = cp_build_binary_op (location,
 				       TRUTH_ANDIF_EXPR, e2, e1, complain);
@@ -4164,8 +4162,7 @@ cp_build_binary_op (location_t location,
 	      e2 = cp_build_binary_op (location,
 				       EQ_EXPR,
 		      		       pfn0,
-			   	       fold_convert (TREE_TYPE (pfn0),
-						     integer_zero_node),
+			   	       build_zero_cst (TREE_TYPE (pfn0)),
 				       complain);
 	      e1 = cp_build_binary_op (location,
 				       TRUTH_ORIF_EXPR, e1, e2, complain);