* tree.c (array_type_nelts, save_expr, substitute_in_expr,
authorsayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 21 May 2004 00:54:35 +0000 (00:54 +0000)
committersayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 21 May 2004 00:54:35 +0000 (00:54 +0000)
get_unwidened, get_narrower): Replace build with build2.
* fold-const.c (negate_expr, associate_trees, size_binop,
fold_convert, eval_subst, omit_one_operand, invert_truthvalue,
pedantic_omit_one_operand, distribute_bit_expr,
make_bit_field_ref, optimize_bit_field_compare,
decode_field_reference, range_binop, make_range,
build_range_check, fold_range_test, fold_truthop,
optimize_minmax_comparison, extract_muldiv_1,
fold_binary_op_with_conditional_arg, fold_mathfn_compare,
fold_inf_compare, fold_single_bit_test, fold,
fold_relational_hi_lo, nondestructive_fold_binary_to_constant):
Likewise replace build with either build2 or build3.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@82083 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog
gcc/fold-const.c
gcc/tree.c

index 60fe09b..bdbe5fb 100644 (file)
@@ -1,3 +1,19 @@
+2004-05-20  Roger Sayle  <roger@eyesopen.com>
+
+       * tree.c (array_type_nelts, save_expr, substitute_in_expr,
+       get_unwidened, get_narrower): Replace build with build2.
+       * fold-const.c (negate_expr, associate_trees, size_binop,
+       fold_convert, eval_subst, omit_one_operand, invert_truthvalue,
+       pedantic_omit_one_operand, distribute_bit_expr,
+       make_bit_field_ref, optimize_bit_field_compare,
+       decode_field_reference, range_binop, make_range,
+       build_range_check, fold_range_test, fold_truthop,
+       optimize_minmax_comparison, extract_muldiv_1, 
+       fold_binary_op_with_conditional_arg, fold_mathfn_compare,
+       fold_inf_compare, fold_single_bit_test, fold,
+       fold_relational_hi_lo, nondestructive_fold_binary_to_constant):
+       Likewise replace build with either build2 or build3.
+
 2004-05-20  Paul Brook  <paul@codesourcery.com>
 
        * unwind-dw2-fde.c (get_cie_encoding): Handle dwarf3 CIE format.
index 03f0cdc..c4a53e0 100644 (file)
@@ -995,16 +995,21 @@ negate_expr (tree t)
          if (negate_expr_p (TREE_OPERAND (t, 1))
              && reorder_operands_p (TREE_OPERAND (t, 0),
                                     TREE_OPERAND (t, 1)))
-           return fold_convert (type,
-                                fold (build (MINUS_EXPR, TREE_TYPE (t),
-                                             negate_expr (TREE_OPERAND (t, 1)),
-                                             TREE_OPERAND (t, 0))));
+           {
+             tem = negate_expr (TREE_OPERAND (t, 1));
+             tem = fold (build2 (MINUS_EXPR, TREE_TYPE (t),
+                                 tem, TREE_OPERAND (t, 0)));
+             return fold_convert (type, tem);
+           }
+
          /* -(A + B) -> (-A) - B.  */
          if (negate_expr_p (TREE_OPERAND (t, 0)))
-           return fold_convert (type,
-                                fold (build (MINUS_EXPR, TREE_TYPE (t),
-                                             negate_expr (TREE_OPERAND (t, 0)),
-                                             TREE_OPERAND (t, 1))));
+           {
+             tem = negate_expr (TREE_OPERAND (t, 0));
+             tem = fold (build2 (MINUS_EXPR, TREE_TYPE (t),
+                                 tem, TREE_OPERAND (t, 1)));
+             return fold_convert (type, tem);
+           }
        }
       break;
 
@@ -1013,9 +1018,9 @@ negate_expr (tree t)
       if ((! FLOAT_TYPE_P (type) || flag_unsafe_math_optimizations)
          && reorder_operands_p (TREE_OPERAND (t, 0), TREE_OPERAND (t, 1)))
        return fold_convert (type,
-                            fold (build (MINUS_EXPR, TREE_TYPE (t),
-                                         TREE_OPERAND (t, 1),
-                                         TREE_OPERAND (t, 0))));
+                            fold (build2 (MINUS_EXPR, TREE_TYPE (t),
+                                          TREE_OPERAND (t, 1),
+                                          TREE_OPERAND (t, 0))));
       break;
 
     case MULT_EXPR:
@@ -1030,15 +1035,15 @@ negate_expr (tree t)
          tem = TREE_OPERAND (t, 1);
          if (negate_expr_p (tem))
            return fold_convert (type,
-                                fold (build (TREE_CODE (t), TREE_TYPE (t),
-                                             TREE_OPERAND (t, 0),
-                                             negate_expr (tem))));
+                                fold (build2 (TREE_CODE (t), TREE_TYPE (t),
+                                              TREE_OPERAND (t, 0),
+                                              negate_expr (tem))));
          tem = TREE_OPERAND (t, 0);
          if (negate_expr_p (tem))
            return fold_convert (type,
-                                fold (build (TREE_CODE (t), TREE_TYPE (t),
-                                             negate_expr (tem),
-                                             TREE_OPERAND (t, 1))));
+                                fold (build2 (TREE_CODE (t), TREE_TYPE (t),
+                                              negate_expr (tem),
+                                              TREE_OPERAND (t, 1))));
        }
       break;
 
@@ -1209,18 +1214,18 @@ associate_trees (tree t1, tree t2, enum tree_code code, tree type)
       if (code == PLUS_EXPR)
        {
          if (TREE_CODE (t1) == NEGATE_EXPR)
-           return build (MINUS_EXPR, type, fold_convert (type, t2),
-                         fold_convert (type, TREE_OPERAND (t1, 0)));
+           return build2 (MINUS_EXPR, type, fold_convert (type, t2),
+                          fold_convert (type, TREE_OPERAND (t1, 0)));
          else if (TREE_CODE (t2) == NEGATE_EXPR)
-           return build (MINUS_EXPR, type, fold_convert (type, t1),
-                         fold_convert (type, TREE_OPERAND (t2, 0)));
+           return build2 (MINUS_EXPR, type, fold_convert (type, t1),
+                          fold_convert (type, TREE_OPERAND (t2, 0)));
        }
-      return build (code, type, fold_convert (type, t1),
-                   fold_convert (type, t2));
+      return build2 (code, type, fold_convert (type, t1),
+                    fold_convert (type, t2));
     }
 
-  return fold (build (code, type, fold_convert (type, t1),
-                     fold_convert (type, t2)));
+  return fold (build2 (code, type, fold_convert (type, t1),
+                      fold_convert (type, t2)));
 }
 \f
 /* Combine two integer constants ARG1 and ARG2 under operation CODE
@@ -1662,7 +1667,7 @@ size_binop (enum tree_code code, tree arg0, tree arg1)
   if (arg0 == error_mark_node || arg1 == error_mark_node)
     return error_mark_node;
 
-  return fold (build (code, type, arg0, arg1));
+  return fold (build2 (code, type, arg0, arg1));
 }
 
 /* Given two values, either both of sizetype or both of bitsizetype,
@@ -1945,9 +1950,9 @@ fold_convert (tree type, tree arg)
       if (INTEGRAL_TYPE_P (orig)
          || POINTER_TYPE_P (orig)
          || TREE_CODE (orig) == REAL_TYPE)
-       return build (COMPLEX_EXPR, type,
-                     fold_convert (TREE_TYPE (type), arg),
-                     fold_convert (TREE_TYPE (type), integer_zero_node));
+       return build2 (COMPLEX_EXPR, type,
+                      fold_convert (TREE_TYPE (type), arg),
+                      fold_convert (TREE_TYPE (type), integer_zero_node));
       if (TREE_CODE (orig) == COMPLEX_TYPE)
        {
          tree rpart, ipart;
@@ -1956,7 +1961,7 @@ fold_convert (tree type, tree arg)
            {
              rpart = fold_convert (TREE_TYPE (type), TREE_OPERAND (arg, 0));
              ipart = fold_convert (TREE_TYPE (type), TREE_OPERAND (arg, 1));
-             return fold (build (COMPLEX_EXPR, type, rpart, ipart));
+             return fold (build2 (COMPLEX_EXPR, type, rpart, ipart));
            }
 
          arg = save_expr (arg);
@@ -1964,7 +1969,7 @@ fold_convert (tree type, tree arg)
          ipart = fold (build1 (IMAGPART_EXPR, TREE_TYPE (orig), arg));
          rpart = fold_convert (TREE_TYPE (type), rpart);
          ipart = fold_convert (TREE_TYPE (type), ipart);
-         return fold (build (COMPLEX_EXPR, type, rpart, ipart));
+         return fold (build2 (COMPLEX_EXPR, type, rpart, ipart));
        }
     }
   else if (TREE_CODE (type) == VECTOR_TYPE)
@@ -2553,11 +2558,11 @@ eval_subst (tree arg, tree old0, tree new0, tree old1, tree new1)
                                       old0, new0, old1, new1)));
 
     case '2':
-      return fold (build (code, type,
-                         eval_subst (TREE_OPERAND (arg, 0),
-                                     old0, new0, old1, new1),
-                         eval_subst (TREE_OPERAND (arg, 1),
-                                     old0, new0, old1, new1)));
+      return fold (build2 (code, type,
+                          eval_subst (TREE_OPERAND (arg, 0),
+                                      old0, new0, old1, new1),
+                          eval_subst (TREE_OPERAND (arg, 1),
+                                      old0, new0, old1, new1)));
 
     case 'e':
       switch (code)
@@ -2569,13 +2574,13 @@ eval_subst (tree arg, tree old0, tree new0, tree old1, tree new1)
          return eval_subst (TREE_OPERAND (arg, 1), old0, new0, old1, new1);
 
        case COND_EXPR:
-         return fold (build (code, type,
-                             eval_subst (TREE_OPERAND (arg, 0),
-                                         old0, new0, old1, new1),
-                             eval_subst (TREE_OPERAND (arg, 1),
-                                         old0, new0, old1, new1),
-                             eval_subst (TREE_OPERAND (arg, 2),
-                                         old0, new0, old1, new1)));
+         return fold (build3 (code, type,
+                              eval_subst (TREE_OPERAND (arg, 0),
+                                          old0, new0, old1, new1),
+                              eval_subst (TREE_OPERAND (arg, 1),
+                                          old0, new0, old1, new1),
+                              eval_subst (TREE_OPERAND (arg, 2),
+                                          old0, new0, old1, new1)));
        default:
          break;
        }
@@ -2600,7 +2605,7 @@ eval_subst (tree arg, tree old0, tree new0, tree old1, tree new1)
        else if (arg1 == old1 || operand_equal_p (arg1, old1, 0))
          arg1 = new1;
 
-       return fold (build (code, type, arg0, arg1));
+       return fold (build2 (code, type, arg0, arg1));
       }
 
     default:
@@ -2621,7 +2626,7 @@ omit_one_operand (tree type, tree result, tree omitted)
   tree t = fold_convert (type, result);
 
   if (TREE_SIDE_EFFECTS (omitted))
-    return build (COMPOUND_EXPR, type, omitted, t);
+    return build2 (COMPOUND_EXPR, type, omitted, t);
 
   return non_lvalue (t);
 }
@@ -2634,7 +2639,7 @@ pedantic_omit_one_operand (tree type, tree result, tree omitted)
   tree t = fold_convert (type, result);
 
   if (TREE_SIDE_EFFECTS (omitted))
-    return build (COMPOUND_EXPR, type, omitted, t);
+    return build2 (COMPOUND_EXPR, type, omitted, t);
 
   return pedantic_non_lvalue (t);
 }
@@ -2672,8 +2677,8 @@ invert_truthvalue (tree arg)
               || code == UNGE_EXPR)
        return build1 (TRUTH_NOT_EXPR, type, arg);
       else
-       return build (invert_tree_comparison (code), type,
-                     TREE_OPERAND (arg, 0), TREE_OPERAND (arg, 1));
+       return build2 (invert_tree_comparison (code), type,
+                      TREE_OPERAND (arg, 0), TREE_OPERAND (arg, 1));
     }
 
   switch (code)
@@ -2682,14 +2687,14 @@ invert_truthvalue (tree arg)
       return fold_convert (type, build_int_2 (integer_zerop (arg), 0));
 
     case TRUTH_AND_EXPR:
-      return build (TRUTH_OR_EXPR, type,
-                   invert_truthvalue (TREE_OPERAND (arg, 0)),
-                   invert_truthvalue (TREE_OPERAND (arg, 1)));
+      return build2 (TRUTH_OR_EXPR, type,
+                    invert_truthvalue (TREE_OPERAND (arg, 0)),
+                    invert_truthvalue (TREE_OPERAND (arg, 1)));
 
     case TRUTH_OR_EXPR:
-      return build (TRUTH_AND_EXPR, type,
-                   invert_truthvalue (TREE_OPERAND (arg, 0)),
-                   invert_truthvalue (TREE_OPERAND (arg, 1)));
+      return build2 (TRUTH_AND_EXPR, type,
+                    invert_truthvalue (TREE_OPERAND (arg, 0)),
+                    invert_truthvalue (TREE_OPERAND (arg, 1)));
 
     case TRUTH_XOR_EXPR:
       /* Here we can invert either operand.  We invert the first operand
@@ -2698,34 +2703,34 @@ invert_truthvalue (tree arg)
         negation of the second operand.  */
 
       if (TREE_CODE (TREE_OPERAND (arg, 1)) == TRUTH_NOT_EXPR)
-       return build (TRUTH_XOR_EXPR, type, TREE_OPERAND (arg, 0),
-                     TREE_OPERAND (TREE_OPERAND (arg, 1), 0));
+       return build2 (TRUTH_XOR_EXPR, type, TREE_OPERAND (arg, 0),
+                      TREE_OPERAND (TREE_OPERAND (arg, 1), 0));
       else
-       return build (TRUTH_XOR_EXPR, type,
-                     invert_truthvalue (TREE_OPERAND (arg, 0)),
-                     TREE_OPERAND (arg, 1));
+       return build2 (TRUTH_XOR_EXPR, type,
+                      invert_truthvalue (TREE_OPERAND (arg, 0)),
+                      TREE_OPERAND (arg, 1));
 
     case TRUTH_ANDIF_EXPR:
-      return build (TRUTH_ORIF_EXPR, type,
-                   invert_truthvalue (TREE_OPERAND (arg, 0)),
-                   invert_truthvalue (TREE_OPERAND (arg, 1)));
+      return build2 (TRUTH_ORIF_EXPR, type,
+                    invert_truthvalue (TREE_OPERAND (arg, 0)),
+                    invert_truthvalue (TREE_OPERAND (arg, 1)));
 
     case TRUTH_ORIF_EXPR:
-      return build (TRUTH_ANDIF_EXPR, type,
-                   invert_truthvalue (TREE_OPERAND (arg, 0)),
-                   invert_truthvalue (TREE_OPERAND (arg, 1)));
+      return build2 (TRUTH_ANDIF_EXPR, type,
+                    invert_truthvalue (TREE_OPERAND (arg, 0)),
+                    invert_truthvalue (TREE_OPERAND (arg, 1)));
 
     case TRUTH_NOT_EXPR:
       return TREE_OPERAND (arg, 0);
 
     case COND_EXPR:
-      return build (COND_EXPR, type, TREE_OPERAND (arg, 0),
-                   invert_truthvalue (TREE_OPERAND (arg, 1)),
-                   invert_truthvalue (TREE_OPERAND (arg, 2)));
+      return build3 (COND_EXPR, type, TREE_OPERAND (arg, 0),
+                    invert_truthvalue (TREE_OPERAND (arg, 1)),
+                    invert_truthvalue (TREE_OPERAND (arg, 2)));
 
     case COMPOUND_EXPR:
-      return build (COMPOUND_EXPR, type, TREE_OPERAND (arg, 0),
-                   invert_truthvalue (TREE_OPERAND (arg, 1)));
+      return build2 (COMPOUND_EXPR, type, TREE_OPERAND (arg, 0),
+                    invert_truthvalue (TREE_OPERAND (arg, 1)));
 
     case NON_LVALUE_EXPR:
       return invert_truthvalue (TREE_OPERAND (arg, 0));
@@ -2742,8 +2747,8 @@ invert_truthvalue (tree arg)
     case BIT_AND_EXPR:
       if (!integer_onep (TREE_OPERAND (arg, 1)))
        break;
-      return build (EQ_EXPR, type, arg,
-                   fold_convert (type, integer_zero_node));
+      return build2 (EQ_EXPR, type, arg,
+                    fold_convert (type, integer_zero_node));
 
     case SAVE_EXPR:
       return build1 (TRUTH_NOT_EXPR, type, arg);
@@ -2808,8 +2813,8 @@ distribute_bit_expr (enum tree_code code, tree type, tree arg0, tree arg1)
   else
     return 0;
 
-  return fold (build (TREE_CODE (arg0), type, common,
-                     fold (build (code, type, left, right))));
+  return fold (build2 (TREE_CODE (arg0), type, common,
+                      fold (build2 (code, type, left, right))));
 }
 \f
 /* Return a BIT_FIELD_REF of type TYPE to refer to BITSIZE bits of INNER
@@ -2819,8 +2824,8 @@ static tree
 make_bit_field_ref (tree inner, tree type, int bitsize, int bitpos,
                    int unsignedp)
 {
-  tree result = build (BIT_FIELD_REF, type, inner,
-                      size_int (bitsize), bitsize_int (bitpos));
+  tree result = build3 (BIT_FIELD_REF, type, inner,
+                       size_int (bitsize), bitsize_int (bitpos));
 
   BIT_FIELD_REF_UNSIGNED (result) = unsignedp;
 
@@ -2925,15 +2930,15 @@ optimize_bit_field_compare (enum tree_code code, tree compare_type,
   if (! const_p)
     /* If not comparing with constant, just rework the comparison
        and return.  */
-    return build (code, compare_type,
-                 build (BIT_AND_EXPR, unsigned_type,
-                        make_bit_field_ref (linner, unsigned_type,
-                                            nbitsize, nbitpos, 1),
-                        mask),
-                 build (BIT_AND_EXPR, unsigned_type,
-                        make_bit_field_ref (rinner, unsigned_type,
-                                            nbitsize, nbitpos, 1),
-                        mask));
+    return build2 (code, compare_type,
+                  build2 (BIT_AND_EXPR, unsigned_type,
+                          make_bit_field_ref (linner, unsigned_type,
+                                              nbitsize, nbitpos, 1),
+                          mask),
+                  build2 (BIT_AND_EXPR, unsigned_type,
+                          make_bit_field_ref (rinner, unsigned_type,
+                                              nbitsize, nbitpos, 1),
+                          mask));
 
   /* Otherwise, we are handling the constant case. See if the constant is too
      big for the field.  Warn and return a tree of for 0 (false) if so.  We do
@@ -2994,9 +2999,9 @@ optimize_bit_field_compare (enum tree_code code, tree compare_type,
                                        size_int (lbitpos), 0),
                           mask, 0));
 
-  return build (code, compare_type,
-               build (BIT_AND_EXPR, unsigned_type, lhs, mask),
-               rhs);
+  return build2 (code, compare_type,
+                build2 (BIT_AND_EXPR, unsigned_type, lhs, mask),
+                rhs);
 }
 \f
 /* Subroutine for fold_truthop: decode a field reference.
@@ -3083,8 +3088,8 @@ decode_field_reference (tree exp, HOST_WIDE_INT *pbitsize,
 
   /* Merge it with the mask we found in the BIT_AND_EXPR, if any.  */
   if (and_mask != 0)
-    mask = fold (build (BIT_AND_EXPR, unsigned_type,
-                       fold_convert (unsigned_type, and_mask), mask));
+    mask = fold (build2 (BIT_AND_EXPR, unsigned_type,
+                        fold_convert (unsigned_type, and_mask), mask));
 
   *pmask = mask;
   *pand_mask = and_mask;
@@ -3249,8 +3254,8 @@ range_binop (enum tree_code code, tree type, tree arg0, int upper0_p,
 
   if (arg0 != 0 && arg1 != 0)
     {
-      tem = fold (build (code, type != 0 ? type : TREE_TYPE (arg0),
-                        arg0, fold_convert (TREE_TYPE (arg0), arg1)));
+      tem = fold (build2 (code, type != 0 ? type : TREE_TYPE (arg0),
+                         arg0, fold_convert (TREE_TYPE (arg0), arg1)));
       STRIP_NOPS (tem);
       return TREE_CODE (tem) == INTEGER_CST ? tem : 0;
     }
@@ -3425,8 +3430,8 @@ make_range (tree exp, int *pin_p, tree *plow, tree *phigh)
 
        case BIT_NOT_EXPR:
          /* ~ X -> -X - 1  */
-         exp = build (MINUS_EXPR, type, negate_expr (arg0),
-                      fold_convert (type, integer_one_node));
+         exp = build2 (MINUS_EXPR, type, negate_expr (arg0),
+                       fold_convert (type, integer_one_node));
          continue;
 
        case PLUS_EXPR:  case MINUS_EXPR:
@@ -3507,11 +3512,11 @@ make_range (tree exp, int *pin_p, tree *plow, tree *phigh)
                  : TYPE_MAX_VALUE (type);
 
              if (TYPE_PRECISION (type) == TYPE_PRECISION (TREE_TYPE (exp)))
-               high_positive = fold (build (RSHIFT_EXPR, type,
-                                            fold_convert (type,
-                                                          high_positive),
-                                            fold_convert (type,
-                                                          integer_one_node)));
+               high_positive = fold (build2 (RSHIFT_EXPR, type,
+                                             fold_convert (type,
+                                                           high_positive),
+                                             fold_convert (type,
+                                                           integer_one_node)));
 
              /* If the low bound is specified, "and" the range with the
                 range for which the original unsigned value will be
@@ -3584,13 +3589,13 @@ build_range_check (tree type, tree exp, int in_p, tree low, tree high)
     return fold_convert (type, integer_one_node);
 
   if (low == 0)
-    return fold (build (LE_EXPR, type, exp, high));
+    return fold (build2 (LE_EXPR, type, exp, high));
 
   if (high == 0)
-    return fold (build (GE_EXPR, type, exp, low));
+    return fold (build2 (GE_EXPR, type, exp, low));
 
   if (operand_equal_p (low, high, 0))
-    return fold (build (EQ_EXPR, type, exp, low));
+    return fold (build2 (EQ_EXPR, type, exp, low));
 
   if (integer_zerop (low))
     {
@@ -3629,15 +3634,15 @@ build_range_check (tree type, tree exp, int in_p, tree low, tree high)
              etype = lang_hooks.types.signed_type (etype);
              exp = fold_convert (etype, exp);
            }
-         return fold (build (GT_EXPR, type, exp,
-                             fold_convert (etype, integer_zero_node)));
+         return fold (build2 (GT_EXPR, type, exp,
+                              fold_convert (etype, integer_zero_node)));
        }
     }
 
   if (0 != (value = const_binop (MINUS_EXPR, high, low, 0))
       && ! TREE_OVERFLOW (value))
     return build_range_check (type,
-                             fold (build (MINUS_EXPR, etype, exp, low)),
+                             fold (build2 (MINUS_EXPR, etype, exp, low)),
                              1, fold_convert (etype, integer_zero_node),
                              value);
 
@@ -3826,10 +3831,10 @@ fold_range_test (tree exp)
         unless we are at top level or LHS contains a PLACEHOLDER_EXPR, in
         which cases we can't do this.  */
       if (simple_operand_p (lhs))
-       return build (TREE_CODE (exp) == TRUTH_ANDIF_EXPR
-                     ? TRUTH_AND_EXPR : TRUTH_OR_EXPR,
-                     TREE_TYPE (exp), TREE_OPERAND (exp, 0),
-                     TREE_OPERAND (exp, 1));
+       return build2 (TREE_CODE (exp) == TRUTH_ANDIF_EXPR
+                      ? TRUTH_AND_EXPR : TRUTH_OR_EXPR,
+                      TREE_TYPE (exp), TREE_OPERAND (exp, 0),
+                      TREE_OPERAND (exp, 1));
 
       else if (lang_hooks.decls.global_bindings_p () == 0
               && ! CONTAINS_PLACEHOLDER_P (lhs))
@@ -3842,9 +3847,9 @@ fold_range_test (tree exp)
              && (0 != (rhs = build_range_check (TREE_TYPE (exp), common,
                                                 or_op ? ! in1_p : in1_p,
                                                 low1, high1))))
-           return build (TREE_CODE (exp) == TRUTH_ANDIF_EXPR
-                         ? TRUTH_AND_EXPR : TRUTH_OR_EXPR,
-                         TREE_TYPE (exp), lhs, rhs);
+           return build2 (TREE_CODE (exp) == TRUTH_ANDIF_EXPR
+                          ? TRUTH_AND_EXPR : TRUTH_OR_EXPR,
+                          TREE_TYPE (exp), lhs, rhs);
        }
     }
 
@@ -3958,10 +3963,16 @@ fold_truthop (enum tree_code code, tree truth_type, tree lhs, tree rhs)
   rcode = TREE_CODE (rhs);
 
   if (lcode == BIT_AND_EXPR && integer_onep (TREE_OPERAND (lhs, 1)))
-    lcode = NE_EXPR, lhs = build (NE_EXPR, truth_type, lhs, integer_zero_node);
+    {
+      lhs = build2 (NE_EXPR, truth_type, lhs, integer_zero_node);
+      lcode = NE_EXPR;
+    }
 
   if (rcode == BIT_AND_EXPR && integer_onep (TREE_OPERAND (rhs, 1)))
-    rcode = NE_EXPR, rhs = build (NE_EXPR, truth_type, rhs, integer_zero_node);
+    {
+      rhs = build2 (NE_EXPR, truth_type, rhs, integer_zero_node);
+      rcode = NE_EXPR;
+    }
 
   if (TREE_CODE_CLASS (lcode) != '<' || TREE_CODE_CLASS (rcode) != '<')
     return 0;
@@ -4012,8 +4023,8 @@ fold_truthop (enum tree_code code, tree truth_type, tree lhs, tree rhs)
       else if (compcode == COMPCODE_FALSE)
        return fold_convert (truth_type, integer_zero_node);
       else if (compcode != -1)
-       return build (compcode_to_comparison (compcode),
-                     truth_type, ll_arg, lr_arg);
+       return build2 (compcode_to_comparison (compcode),
+                      truth_type, ll_arg, lr_arg);
     }
 
   /* If the RHS can be evaluated unconditionally and its operands are
@@ -4032,22 +4043,22 @@ fold_truthop (enum tree_code code, tree truth_type, tree lhs, tree rhs)
          && lcode == NE_EXPR && integer_zerop (lr_arg)
          && rcode == NE_EXPR && integer_zerop (rr_arg)
          && TREE_TYPE (ll_arg) == TREE_TYPE (rl_arg))
-       return build (NE_EXPR, truth_type,
-                     build (BIT_IOR_EXPR, TREE_TYPE (ll_arg),
-                            ll_arg, rl_arg),
-                     integer_zero_node);
+       return build2 (NE_EXPR, truth_type,
+                      build2 (BIT_IOR_EXPR, TREE_TYPE (ll_arg),
+                              ll_arg, rl_arg),
+                      integer_zero_node);
 
       /* Convert (a == 0) && (b == 0) into (a | b) == 0.  */
       if (code == TRUTH_AND_EXPR
          && lcode == EQ_EXPR && integer_zerop (lr_arg)
          && rcode == EQ_EXPR && integer_zerop (rr_arg)
          && TREE_TYPE (ll_arg) == TREE_TYPE (rl_arg))
-       return build (EQ_EXPR, truth_type,
-                     build (BIT_IOR_EXPR, TREE_TYPE (ll_arg),
-                            ll_arg, rl_arg),
-                     integer_zero_node);
+       return build2 (EQ_EXPR, truth_type,
+                      build2 (BIT_IOR_EXPR, TREE_TYPE (ll_arg),
+                              ll_arg, rl_arg),
+                      integer_zero_node);
 
-      return build (code, truth_type, lhs, rhs);
+      return build2 (code, truth_type, lhs, rhs);
     }
 
   /* See if the comparisons can be merged.  Then get all the parameters for
@@ -4238,14 +4249,14 @@ fold_truthop (enum tree_code code, tree truth_type, tree lhs, tree rhs)
          lhs = make_bit_field_ref (ll_inner, lntype, lnbitsize, lnbitpos,
                                    ll_unsignedp || rl_unsignedp);
          if (! all_ones_mask_p (ll_mask, lnbitsize))
-           lhs = build (BIT_AND_EXPR, lntype, lhs, ll_mask);
+           lhs = build2 (BIT_AND_EXPR, lntype, lhs, ll_mask);
 
          rhs = make_bit_field_ref (lr_inner, rntype, rnbitsize, rnbitpos,
                                    lr_unsignedp || rr_unsignedp);
          if (! all_ones_mask_p (lr_mask, rnbitsize))
-           rhs = build (BIT_AND_EXPR, rntype, rhs, lr_mask);
+           rhs = build2 (BIT_AND_EXPR, rntype, rhs, lr_mask);
 
-         return build (wanted_code, truth_type, lhs, rhs);
+         return build2 (wanted_code, truth_type, lhs, rhs);
        }
 
       /* There is still another way we can do something:  If both pairs of
@@ -4291,12 +4302,12 @@ fold_truthop (enum tree_code code, tree truth_type, tree lhs, tree rhs)
            }
 
          if (! all_ones_mask_p (ll_mask, ll_bitsize + rl_bitsize))
-           lhs = build (BIT_AND_EXPR, type, lhs, ll_mask);
+           lhs = build2 (BIT_AND_EXPR, type, lhs, ll_mask);
 
          if (! all_ones_mask_p (lr_mask, lr_bitsize + rr_bitsize))
-           rhs = build (BIT_AND_EXPR, type, rhs, lr_mask);
+           rhs = build2 (BIT_AND_EXPR, type, rhs, lr_mask);
 
-         return build (wanted_code, truth_type, lhs, rhs);
+         return build2 (wanted_code, truth_type, lhs, rhs);
        }
 
       return 0;
@@ -4332,10 +4343,10 @@ fold_truthop (enum tree_code code, tree truth_type, tree lhs, tree rhs)
 
   ll_mask = const_binop (BIT_IOR_EXPR, ll_mask, rl_mask, 0);
   if (! all_ones_mask_p (ll_mask, lnbitsize))
-    result = build (BIT_AND_EXPR, lntype, result, ll_mask);
+    result = build2 (BIT_AND_EXPR, lntype, result, ll_mask);
 
-  return build (wanted_code, truth_type, result,
-               const_binop (BIT_IOR_EXPR, l_const, r_const, 0));
+  return build2 (wanted_code, truth_type, result,
+                const_binop (BIT_IOR_EXPR, l_const, r_const, 0));
 }
 \f
 /* Optimize T, which is a comparison of a MIN_EXPR or MAX_EXPR with a
@@ -4379,20 +4390,20 @@ optimize_minmax_comparison (tree t)
 
     case GE_EXPR:
       return
-       fold (build (TRUTH_ORIF_EXPR, type,
-                    optimize_minmax_comparison
-                    (build (EQ_EXPR, type, arg0, comp_const)),
-                    optimize_minmax_comparison
-                    (build (GT_EXPR, type, arg0, comp_const))));
+       fold (build2 (TRUTH_ORIF_EXPR, type,
+                     optimize_minmax_comparison
+                     (build2 (EQ_EXPR, type, arg0, comp_const)),
+                     optimize_minmax_comparison
+                     (build2 (GT_EXPR, type, arg0, comp_const))));
 
     case EQ_EXPR:
       if (op_code == MAX_EXPR && consts_equal)
        /* MAX (X, 0) == 0  ->  X <= 0  */
-       return fold (build (LE_EXPR, type, inner, comp_const));
+       return fold (build2 (LE_EXPR, type, inner, comp_const));
 
       else if (op_code == MAX_EXPR && consts_lt)
        /* MAX (X, 0) == 5  ->  X == 5   */
-       return fold (build (EQ_EXPR, type, inner, comp_const));
+       return fold (build2 (EQ_EXPR, type, inner, comp_const));
 
       else if (op_code == MAX_EXPR)
        /* MAX (X, 0) == -1  ->  false  */
@@ -4400,7 +4411,7 @@ optimize_minmax_comparison (tree t)
 
       else if (consts_equal)
        /* MIN (X, 0) == 0  ->  X >= 0  */
-       return fold (build (GE_EXPR, type, inner, comp_const));
+       return fold (build2 (GE_EXPR, type, inner, comp_const));
 
       else if (consts_lt)
        /* MIN (X, 0) == 5  ->  false  */
@@ -4408,13 +4419,13 @@ optimize_minmax_comparison (tree t)
 
       else
        /* MIN (X, 0) == -1  ->  X == -1  */
-       return fold (build (EQ_EXPR, type, inner, comp_const));
+       return fold (build2 (EQ_EXPR, type, inner, comp_const));
 
     case GT_EXPR:
       if (op_code == MAX_EXPR && (consts_equal || consts_lt))
        /* MAX (X, 0) > 0  ->  X > 0
           MAX (X, 0) > 5  ->  X > 5  */
-       return fold (build (GT_EXPR, type, inner, comp_const));
+       return fold (build2 (GT_EXPR, type, inner, comp_const));
 
       else if (op_code == MAX_EXPR)
        /* MAX (X, 0) > -1  ->  true  */
@@ -4427,7 +4438,7 @@ optimize_minmax_comparison (tree t)
 
       else
        /* MIN (X, 0) > -1  ->  X > -1  */
-       return fold (build (GT_EXPR, type, inner, comp_const));
+       return fold (build2 (GT_EXPR, type, inner, comp_const));
 
     default:
       return t;
@@ -4562,8 +4573,8 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type)
          if (tree_int_cst_sgn (c) < 0)
            tcode = (tcode == MIN_EXPR ? MAX_EXPR : MIN_EXPR);
 
-         return fold (build (tcode, ctype, fold_convert (ctype, t1),
-                             fold_convert (ctype, t2)));
+         return fold (build2 (tcode, ctype, fold_convert (ctype, t1),
+                              fold_convert (ctype, t2)));
        }
       break;
 
@@ -4581,9 +4592,9 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type)
                                                   size_one_node,
                                                   op1, 0)))
          && ! TREE_OVERFLOW (t1))
-       return extract_muldiv (build (tcode == LSHIFT_EXPR
-                                     ? MULT_EXPR : FLOOR_DIV_EXPR,
-                                     ctype, fold_convert (ctype, op0), t1),
+       return extract_muldiv (build2 (tcode == LSHIFT_EXPR
+                                      ? MULT_EXPR : FLOOR_DIV_EXPR,
+                                      ctype, fold_convert (ctype, op0), t1),
                               c, code, wide_type);
       break;
 
@@ -4600,8 +4611,8 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type)
                 are divisible by c.  */
              || (multiple_of_p (ctype, op0, c)
                  && multiple_of_p (ctype, op1, c))))
-       return fold (build (tcode, ctype, fold_convert (ctype, t1),
-                           fold_convert (ctype, t2)));
+       return fold (build2 (tcode, ctype, fold_convert (ctype, t1),
+                            fold_convert (ctype, t2)));
 
       /* If this was a subtraction, negate OP1 and set it to be an addition.
         This simplifies the logic below.  */
@@ -4651,17 +4662,17 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type)
       /* If we were able to eliminate our operation from the first side,
         apply our operation to the second side and reform the PLUS.  */
       if (t1 != 0 && (TREE_CODE (t1) != code || code == MULT_EXPR))
-       return fold (build (tcode, ctype, fold_convert (ctype, t1), op1));
+       return fold (build2 (tcode, ctype, fold_convert (ctype, t1), op1));
 
       /* The last case is if we are a multiply.  In that case, we can
         apply the distributive law to commute the multiply and addition
         if the multiplication of the constants doesn't overflow.  */
       if (code == MULT_EXPR)
-       return fold (build (tcode, ctype,
-                           fold (build (code, ctype,
-                                        fold_convert (ctype, op0),
-                                        fold_convert (ctype, c))),
-                           op1));
+       return fold (build2 (tcode, ctype,
+                            fold (build2 (code, ctype,
+                                          fold_convert (ctype, op0),
+                                          fold_convert (ctype, c))),
+                            op1));
 
       break;
 
@@ -4683,12 +4694,12 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type)
         do something only if the second operand is a constant.  */
       if (same_p
          && (t1 = extract_muldiv (op0, c, code, wide_type)) != 0)
-       return fold (build (tcode, ctype, fold_convert (ctype, t1),
-                           fold_convert (ctype, op1)));
+       return fold (build2 (tcode, ctype, fold_convert (ctype, t1),
+                            fold_convert (ctype, op1)));
       else if (tcode == MULT_EXPR && code == MULT_EXPR
               && (t1 = extract_muldiv (op1, c, code, wide_type)) != 0)
-       return fold (build (tcode, ctype, fold_convert (ctype, op0),
-                           fold_convert (ctype, t1)));
+       return fold (build2 (tcode, ctype, fold_convert (ctype, op0),
+                            fold_convert (ctype, t1)));
       else if (TREE_CODE (op1) != INTEGER_CST)
        return 0;
 
@@ -4698,7 +4709,7 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type)
          && 0 != (t1 = const_binop (MULT_EXPR, fold_convert (ctype, op1),
                                     fold_convert (ctype, c), 0))
          && ! TREE_OVERFLOW (t1))
-       return fold (build (tcode, ctype, fold_convert (ctype, op0), t1));
+       return fold (build2 (tcode, ctype, fold_convert (ctype, op0), t1));
 
       /* If these operations "cancel" each other, we have the main
         optimizations of this pass, which occur when either constant is a
@@ -4717,15 +4728,15 @@ extract_muldiv_1 (tree t, tree c, enum tree_code code, tree wide_type)
                  && code != FLOOR_MOD_EXPR && code != ROUND_MOD_EXPR)))
        {
          if (integer_zerop (const_binop (TRUNC_MOD_EXPR, op1, c, 0)))
-           return fold (build (tcode, ctype, fold_convert (ctype, op0),
-                               fold_convert (ctype,
-                                             const_binop (TRUNC_DIV_EXPR,
-                                                          op1, c, 0))));
+           return fold (build2 (tcode, ctype, fold_convert (ctype, op0),
+                                fold_convert (ctype,
+                                              const_binop (TRUNC_DIV_EXPR,
+                                                           op1, c, 0))));
          else if (integer_zerop (const_binop (TRUNC_MOD_EXPR, c, op1, 0)))
-           return fold (build (code, ctype, fold_convert (ctype, op0),
-                               fold_convert (ctype,
-                                             const_binop (TRUNC_DIV_EXPR,
-                                                          c, op1, 0))));
+           return fold (build2 (code, ctype, fold_convert (ctype, op0),
+                                fold_convert (ctype,
+                                              const_binop (TRUNC_DIV_EXPR,
+                                                           c, op1, 0))));
        }
       break;
 
@@ -4889,8 +4900,8 @@ fold_mathfn_compare (enum built_in_function fcode, enum tree_code code,
                                     arg);
 
          /* sqrt(x) > y is the same as x >= 0, if y is negative.  */
-         return fold (build (GE_EXPR, type, arg,
-                             build_real (TREE_TYPE (arg), dconst0)));
+         return fold (build2 (GE_EXPR, type, arg,
+                              build_real (TREE_TYPE (arg), dconst0)));
        }
       else if (code == GT_EXPR || code == GE_EXPR)
        {
@@ -4903,8 +4914,8 @@ fold_mathfn_compare (enum built_in_function fcode, enum tree_code code,
            {
              /* sqrt(x) > y is x == +Inf, when y is very large.  */
              if (HONOR_INFINITIES (mode))
-               return fold (build (EQ_EXPR, type, arg,
-                                   build_real (TREE_TYPE (arg), c2)));
+               return fold (build2 (EQ_EXPR, type, arg,
+                                    build_real (TREE_TYPE (arg), c2)));
 
              /* sqrt(x) > y is always false, when y is very large
                 and we don't care about infinities.  */
@@ -4914,8 +4925,8 @@ fold_mathfn_compare (enum built_in_function fcode, enum tree_code code,
            }
 
          /* sqrt(x) > c is the same as x > c*c.  */
-         return fold (build (code, type, arg,
-                             build_real (TREE_TYPE (arg), c2)));
+         return fold (build2 (code, type, arg,
+                              build_real (TREE_TYPE (arg), c2)));
        }
       else if (code == LT_EXPR || code == LE_EXPR)
        {
@@ -4936,14 +4947,14 @@ fold_mathfn_compare (enum built_in_function fcode, enum tree_code code,
              /* sqrt(x) < y is x != +Inf when y is very large and we
                 don't care about NaNs.  */
              if (! HONOR_NANS (mode))
-               return fold (build (NE_EXPR, type, arg,
-                                   build_real (TREE_TYPE (arg), c2)));
+               return fold (build2 (NE_EXPR, type, arg,
+                                    build_real (TREE_TYPE (arg), c2)));
 
              /* sqrt(x) < y is x >= 0 when y is very large and we
                 don't care about Infinities.  */
              if (! HONOR_INFINITIES (mode))
-               return fold (build (GE_EXPR, type, arg,
-                                   build_real (TREE_TYPE (arg), dconst0)));
+               return fold (build2 (GE_EXPR, type, arg,
+                                    build_real (TREE_TYPE (arg), dconst0)));
 
              /* sqrt(x) < y is x >= 0 && x != +Inf, when y is large.  */
              if (lang_hooks.decls.global_bindings_p () != 0
@@ -4951,32 +4962,32 @@ fold_mathfn_compare (enum built_in_function fcode, enum tree_code code,
                return NULL_TREE;
 
              arg = save_expr (arg);
-             return fold (build (TRUTH_ANDIF_EXPR, type,
-                                 fold (build (GE_EXPR, type, arg,
-                                              build_real (TREE_TYPE (arg),
-                                                          dconst0))),
-                                 fold (build (NE_EXPR, type, arg,
-                                              build_real (TREE_TYPE (arg),
-                                                          c2)))));
+             return fold (build2 (TRUTH_ANDIF_EXPR, type,
+                                  fold (build2 (GE_EXPR, type, arg,
+                                                build_real (TREE_TYPE (arg),
+                                                            dconst0))),
+                                  fold (build2 (NE_EXPR, type, arg,
+                                                build_real (TREE_TYPE (arg),
+                                                            c2)))));
            }
 
          /* sqrt(x) < c is the same as x < c*c, if we ignore NaNs.  */
          if (! HONOR_NANS (mode))
-           return fold (build (code, type, arg,
-                               build_real (TREE_TYPE (arg), c2)));
+           return fold (build2 (code, type, arg,
+                                build_real (TREE_TYPE (arg), c2)));
 
          /* sqrt(x) < c is the same as x >= 0 && x < c*c.  */
          if (lang_hooks.decls.global_bindings_p () == 0
              && ! CONTAINS_PLACEHOLDER_P (arg))
            {
              arg = save_expr (arg);
-             return fold (build (TRUTH_ANDIF_EXPR, type,
-                                 fold (build (GE_EXPR, type, arg,
-                                              build_real (TREE_TYPE (arg),
-                                                          dconst0))),
-                                 fold (build (code, type, arg,
-                                              build_real (TREE_TYPE (arg),
-                                                          c2)))));
+             return fold (build2 (TRUTH_ANDIF_EXPR, type,
+                                  fold (build2 (GE_EXPR, type, arg,
+                                                build_real (TREE_TYPE (arg),
+                                                            dconst0))),
+                                  fold (build2 (code, type, arg,
+                                                build_real (TREE_TYPE (arg),
+                                                            c2)))));
            }
        }
     }
@@ -5031,7 +5042,7 @@ fold_inf_compare (enum tree_code code, tree type, tree arg0, tree arg1)
          && ! CONTAINS_PLACEHOLDER_P (arg0))
        {
          arg0 = save_expr (arg0);
-         return fold (build (EQ_EXPR, type, arg0, arg0));
+         return fold (build2 (EQ_EXPR, type, arg0, arg0));
        }
       break;
 
@@ -5039,23 +5050,23 @@ fold_inf_compare (enum tree_code code, tree type, tree arg0, tree arg1)
     case GE_EXPR:
       /* x == +Inf and x >= +Inf are always equal to x > DBL_MAX.  */
       real_maxval (&max, neg, mode);
-      return fold (build (neg ? LT_EXPR : GT_EXPR, type,
-                         arg0, build_real (TREE_TYPE (arg0), max)));
+      return fold (build2 (neg ? LT_EXPR : GT_EXPR, type,
+                          arg0, build_real (TREE_TYPE (arg0), max)));
 
     case LT_EXPR:
       /* x < +Inf is always equal to x <= DBL_MAX.  */
       real_maxval (&max, neg, mode);
-      return fold (build (neg ? GE_EXPR : LE_EXPR, type,
-                         arg0, build_real (TREE_TYPE (arg0), max)));
+      return fold (build2 (neg ? GE_EXPR : LE_EXPR, type,
+                          arg0, build_real (TREE_TYPE (arg0), max)));
 
     case NE_EXPR:
       /* x != +Inf is always equal to !(x > DBL_MAX).  */
       real_maxval (&max, neg, mode);
       if (! HONOR_NANS (mode))
-       return fold (build (neg ? GE_EXPR : LE_EXPR, type,
-                           arg0, build_real (TREE_TYPE (arg0), max)));
-      temp = fold (build (neg ? LT_EXPR : GT_EXPR, type,
-                         arg0, build_real (TREE_TYPE (arg0), max)));
+       return fold (build2 (neg ? GE_EXPR : LE_EXPR, type,
+                            arg0, build_real (TREE_TYPE (arg0), max)));
+      temp = fold (build2 (neg ? LT_EXPR : GT_EXPR, type,
+                          arg0, build_real (TREE_TYPE (arg0), max)));
       return fold (build1 (TRUTH_NOT_EXPR, type, temp));
 
     default:
@@ -5259,9 +5270,9 @@ fold_single_bit_test (enum tree_code code, tree arg0, tree arg1,
       if (arg00 != NULL_TREE)
        {
          tree stype = lang_hooks.types.signed_type (TREE_TYPE (arg00));
-         return fold (build (code == EQ_EXPR ? GE_EXPR : LT_EXPR, result_type,
-                             fold_convert (stype, arg00),
-                             fold_convert (stype, integer_zero_node)));
+         return fold (build2 (code == EQ_EXPR ? GE_EXPR : LT_EXPR,
+                              result_type, fold_convert (stype, arg00),
+                              fold_convert (stype, integer_zero_node)));
        }
 
       /* At this point, we know that arg0 is not testing the sign bit.  */
@@ -5300,16 +5311,16 @@ fold_single_bit_test (enum tree_code code, tree arg0, tree arg1,
       inner = fold_convert (intermediate_type, inner);
 
       if (bitnum != 0)
-       inner = build (RSHIFT_EXPR, intermediate_type,
-                      inner, size_int (bitnum));
+       inner = build2 (RSHIFT_EXPR, intermediate_type,
+                       inner, size_int (bitnum));
 
       if (code == EQ_EXPR)
-       inner = build (BIT_XOR_EXPR, intermediate_type,
-                      inner, integer_one_node);
+       inner = build2 (BIT_XOR_EXPR, intermediate_type,
+                       inner, integer_one_node);
 
       /* Put the AND last so it can combine with more things.  */
-      inner = build (BIT_AND_EXPR, intermediate_type,
-                    inner, integer_one_node);
+      inner = build2 (BIT_AND_EXPR, intermediate_type,
+                     inner, integer_one_node);
 
       /* Make sure to return the proper type.  */
       inner = fold_convert (result_type, inner);
@@ -5499,8 +5510,8 @@ fold (tree expr)
      to ARG1 to reduce the number of tests below.  */
   if (commutative_tree_code (code)
       && tree_swap_operands_p (arg0, arg1, true))
-    return fold (build (code, type, TREE_OPERAND (t, 1),
-                       TREE_OPERAND (t, 0)));
+    return fold (build2 (code, type, TREE_OPERAND (t, 1),
+                        TREE_OPERAND (t, 0)));
 
   /* Now WINS is set as described above,
      ARG0 is the first operand of EXPR,
@@ -5531,11 +5542,11 @@ fold (tree expr)
                  || (TREE_CODE (arg0) == BIT_AND_EXPR
                      && integer_onep (TREE_OPERAND (arg0, 1)))))))
     {
-      tem = fold (build (code == BIT_AND_EXPR ? TRUTH_AND_EXPR
-                      : code == BIT_IOR_EXPR ? TRUTH_OR_EXPR
-                      : TRUTH_XOR_EXPR,
-                      type, fold_convert (boolean_type_node, arg0),
-                      fold_convert (boolean_type_node, arg1)));
+      tem = fold (build2 (code == BIT_AND_EXPR ? TRUTH_AND_EXPR
+                         : code == BIT_IOR_EXPR ? TRUTH_OR_EXPR
+                         : TRUTH_XOR_EXPR,
+                         type, fold_convert (boolean_type_node, arg0),
+                         fold_convert (boolean_type_node, arg1)));
 
       if (code == EQ_EXPR)
        tem = invert_truthvalue (tem);
@@ -5546,8 +5557,8 @@ fold (tree expr)
   if (TREE_CODE_CLASS (code) == '1')
     {
       if (TREE_CODE (arg0) == COMPOUND_EXPR)
-       return build (COMPOUND_EXPR, type, TREE_OPERAND (arg0, 0),
-                     fold (build1 (code, type, TREE_OPERAND (arg0, 1))));
+       return build2 (COMPOUND_EXPR, type, TREE_OPERAND (arg0, 0),
+                      fold (build1 (code, type, TREE_OPERAND (arg0, 1))));
       else if (TREE_CODE (arg0) == COND_EXPR)
        {
          tree arg01 = TREE_OPERAND (arg0, 1);
@@ -5556,8 +5567,8 @@ fold (tree expr)
            arg01 = fold (build1 (code, type, arg01));
          if (! VOID_TYPE_P (TREE_TYPE (arg02)))
            arg02 = fold (build1 (code, type, arg02));
-         tem = fold (build (COND_EXPR, type, TREE_OPERAND (arg0, 0),
-                            arg01, arg02));
+         tem = fold (build3 (COND_EXPR, type, TREE_OPERAND (arg0, 0),
+                             arg01, arg02));
 
          /* If this was a conversion, and all we did was to move into
             inside the COND_EXPR, bring it back out.  But leave it if
@@ -5582,12 +5593,12 @@ fold (tree expr)
                        (TREE_TYPE (TREE_OPERAND (TREE_OPERAND (tem, 1), 0))))
                    && TYPE_PRECISION (TREE_TYPE (tem)) <= BITS_PER_WORD))
            tem = build1 (code, type,
-                         build (COND_EXPR,
-                                TREE_TYPE (TREE_OPERAND
-                                           (TREE_OPERAND (tem, 1), 0)),
-                                TREE_OPERAND (tem, 0),
-                                TREE_OPERAND (TREE_OPERAND (tem, 1), 0),
-                                TREE_OPERAND (TREE_OPERAND (tem, 2), 0)));
+                         build3 (COND_EXPR,
+                                 TREE_TYPE (TREE_OPERAND
+                                            (TREE_OPERAND (tem, 1), 0)),
+                                 TREE_OPERAND (tem, 0),
+                                 TREE_OPERAND (TREE_OPERAND (tem, 1), 0),
+                                 TREE_OPERAND (TREE_OPERAND (tem, 2), 0)));
          return tem;
        }
       else if (TREE_CODE_CLASS (TREE_CODE (arg0)) == '<')
@@ -5599,30 +5610,33 @@ fold (tree expr)
              return arg0;
            }
          else if (TREE_CODE (type) != INTEGER_TYPE)
-           return fold (build (COND_EXPR, type, arg0,
-                               fold (build1 (code, type, integer_one_node)),
-                               fold (build1 (code, type, integer_zero_node))));
+           return fold (build3 (COND_EXPR, type, arg0,
+                                fold (build1 (code, type,
+                                              integer_one_node)),
+                                fold (build1 (code, type,
+                                              integer_zero_node))));
        }
    }
   else if (TREE_CODE_CLASS (code) == '<'
           && TREE_CODE (arg0) == COMPOUND_EXPR)
-    return build (COMPOUND_EXPR, type, TREE_OPERAND (arg0, 0),
-                 fold (build (code, type, TREE_OPERAND (arg0, 1), arg1)));
+    return build2 (COMPOUND_EXPR, type, TREE_OPERAND (arg0, 0),
+                  fold (build2 (code, type, TREE_OPERAND (arg0, 1), arg1)));
   else if (TREE_CODE_CLASS (code) == '<'
           && TREE_CODE (arg1) == COMPOUND_EXPR)
-    return build (COMPOUND_EXPR, type, TREE_OPERAND (arg1, 0),
-                 fold (build (code, type, arg0, TREE_OPERAND (arg1, 1))));
+    return build2 (COMPOUND_EXPR, type, TREE_OPERAND (arg1, 0),
+                  fold (build2 (code, type, arg0, TREE_OPERAND (arg1, 1))));
   else if (TREE_CODE_CLASS (code) == '2'
           || TREE_CODE_CLASS (code) == '<')
     {
       if (TREE_CODE (arg0) == COMPOUND_EXPR)
-       return build (COMPOUND_EXPR, type, TREE_OPERAND (arg0, 0),
-                     fold (build (code, type, TREE_OPERAND (arg0, 1), arg1)));
+       return build2 (COMPOUND_EXPR, type, TREE_OPERAND (arg0, 0),
+                      fold (build2 (code, type, TREE_OPERAND (arg0, 1),
+                                    arg1)));
       if (TREE_CODE (arg1) == COMPOUND_EXPR
          && reorder_operands_p (arg0, TREE_OPERAND (arg1, 0)))
-       return build (COMPOUND_EXPR, type, TREE_OPERAND (arg1, 0),
-                     fold (build (code, type,
-                                  arg0, TREE_OPERAND (arg1, 1))));
+       return build2 (COMPOUND_EXPR, type, TREE_OPERAND (arg1, 0),
+                      fold (build2 (code, type,
+                                    arg0, TREE_OPERAND (arg1, 1))));
 
       if (TREE_CODE (arg0) == COND_EXPR
          || TREE_CODE_CLASS (TREE_CODE (arg0)) == '<')
@@ -5752,7 +5766,7 @@ fold (tree expr)
          tem = copy_node (t);
          TREE_OPERAND (tem, 0) = TREE_OPERAND (prev, 1);
          /* First do the assignment, then return converted constant.  */
-         tem = build (COMPOUND_EXPR, TREE_TYPE (tem), prev, fold (tem));
+         tem = build2 (COMPOUND_EXPR, TREE_TYPE (tem), prev, fold (tem));
          TREE_NO_WARNING (tem) = 1;
          TREE_USED (tem) = 1;
          return tem;
@@ -5796,9 +5810,9 @@ fold (tree expr)
 #endif
            }
          if (change)
-           return fold (build (BIT_AND_EXPR, type,
-                               fold_convert (type, and0),
-                               fold_convert (type, and1)));
+           return fold (build2 (BIT_AND_EXPR, type,
+                                fold_convert (type, and0),
+                                fold_convert (type, and1)));
        }
 
       /* Convert (T1)((T2)X op Y) into (T1)X op Y, for pointer types T1 and
@@ -5817,8 +5831,8 @@ fold (tree expr)
          tree s1 = TYPE_SIZE (tt1);
 
          if (s0 && s1 && operand_equal_p (s0, s1, OEP_ONLY_CONST))
-           return build (TREE_CODE (arg0), t0, convert (t0, arg00),
-                         TREE_OPERAND (arg0, 1));
+           return build2 (TREE_CODE (arg0), t0, convert (t0, arg00),
+                          TREE_OPERAND (arg0, 1));
        }
 
       tem = fold_convert_const (code, type, arg0);
@@ -5879,18 +5893,18 @@ fold (tree expr)
       if (TREE_CODE (TREE_TYPE (arg0)) != COMPLEX_TYPE)
        return fold_convert (type, arg0);
       else if (TREE_CODE (arg0) == COMPLEX_EXPR)
-       return build (COMPLEX_EXPR, type,
-                     TREE_OPERAND (arg0, 0),
-                     negate_expr (TREE_OPERAND (arg0, 1)));
+       return build2 (COMPLEX_EXPR, type,
+                      TREE_OPERAND (arg0, 0),
+                      negate_expr (TREE_OPERAND (arg0, 1)));
       else if (TREE_CODE (arg0) == COMPLEX_CST)
        return build_complex (type, TREE_REALPART (arg0),
                              negate_expr (TREE_IMAGPART (arg0)));
       else if (TREE_CODE (arg0) == PLUS_EXPR || TREE_CODE (arg0) == MINUS_EXPR)
-       return fold (build (TREE_CODE (arg0), type,
-                           fold (build1 (CONJ_EXPR, type,
-                                         TREE_OPERAND (arg0, 0))),
-                           fold (build1 (CONJ_EXPR,
-                                         type, TREE_OPERAND (arg0, 1)))));
+       return fold (build2 (TREE_CODE (arg0), type,
+                            fold (build1 (CONJ_EXPR, type,
+                                          TREE_OPERAND (arg0, 0))),
+                            fold (build1 (CONJ_EXPR, type,
+                                          TREE_OPERAND (arg0, 1)))));
       else if (TREE_CODE (arg0) == CONJ_EXPR)
        return TREE_OPERAND (arg0, 0);
       return t;
@@ -5913,11 +5927,11 @@ fold (tree expr)
     case PLUS_EXPR:
       /* A + (-B) -> A - B */
       if (TREE_CODE (arg1) == NEGATE_EXPR)
-       return fold (build (MINUS_EXPR, type, arg0, TREE_OPERAND (arg1, 0)));
+       return fold (build2 (MINUS_EXPR, type, arg0, TREE_OPERAND (arg1, 0)));
       /* (-A) + B -> B - A */
       if (TREE_CODE (arg0) == NEGATE_EXPR
          && reorder_operands_p (TREE_OPERAND (arg0, 0), arg1))
-       return fold (build (MINUS_EXPR, type, arg1, TREE_OPERAND (arg0, 0)));
+       return fold (build2 (MINUS_EXPR, type, arg1, TREE_OPERAND (arg0, 0)));
       if (! FLOAT_TYPE_P (type))
        {
          if (integer_zerop (arg1))
@@ -5960,18 +5974,18 @@ fold (tree expr)
 
              if (TREE_CODE (parg0) == MULT_EXPR
                  && TREE_CODE (parg1) != MULT_EXPR)
-               return fold (build (PLUS_EXPR, type,
-                                   fold (build (PLUS_EXPR, type,
-                                                fold_convert (type, parg0),
-                                                fold_convert (type, marg))),
-                                   fold_convert (type, parg1)));
+               return fold (build2 (PLUS_EXPR, type,
+                                    fold (build2 (PLUS_EXPR, type,
+                                                  fold_convert (type, parg0),
+                                                  fold_convert (type, marg))),
+                                    fold_convert (type, parg1)));
              if (TREE_CODE (parg0) != MULT_EXPR
                  && TREE_CODE (parg1) == MULT_EXPR)
-               return fold (build (PLUS_EXPR, type,
-                                   fold (build (PLUS_EXPR, type,
-                                                fold_convert (type, parg1),
-                                                fold_convert (type, marg))),
-                                   fold_convert (type, parg0)));
+               return fold (build2 (PLUS_EXPR, type,
+                                    fold (build2 (PLUS_EXPR, type,
+                                                  fold_convert (type, parg1),
+                                                  fold_convert (type, marg))),
+                                    fold_convert (type, parg0)));
            }
 
          if (TREE_CODE (arg0) == MULT_EXPR && TREE_CODE (arg1) == MULT_EXPR)
@@ -6022,17 +6036,18 @@ fold (tree expr)
 
                  if (exact_log2 (int11) > 0 && int01 % int11 == 0)
                    {
-                     alt0 = fold (build (MULT_EXPR, type, arg00,
-                                         build_int_2 (int01 / int11, 0)));
+                     alt0 = fold (build2 (MULT_EXPR, type, arg00,
+                                          build_int_2 (int01 / int11, 0)));
                      alt1 = arg10;
                      same = arg11;
                    }
                }
 
              if (same)
-               return fold (build (MULT_EXPR, type,
-                                   fold (build (PLUS_EXPR, type, alt0, alt1)),
-                                   same));
+               return fold (build2 (MULT_EXPR, type,
+                                    fold (build2 (PLUS_EXPR, type,
+                                                  alt0, alt1)),
+                                    same));
            }
        }
       else
@@ -6048,8 +6063,8 @@ fold (tree expr)
          /* Convert x+x into x*2.0.  */
          if (operand_equal_p (arg0, arg1, 0)
              && SCALAR_FLOAT_TYPE_P (type))
-           return fold (build (MULT_EXPR, type, arg0,
-                               build_real (type, dconst2)));
+           return fold (build2 (MULT_EXPR, type, arg0,
+                                build_real (type, dconst2)));
 
          /* Convert x*c+x into x*(c+1).  */
          if (flag_unsafe_math_optimizations
@@ -6062,8 +6077,8 @@ fold (tree expr)
 
              c = TREE_REAL_CST (TREE_OPERAND (arg0, 1));
              real_arithmetic (&c, PLUS_EXPR, &c, &dconst1);
-             return fold (build (MULT_EXPR, type, arg1,
-                                 build_real (type, c)));
+             return fold (build2 (MULT_EXPR, type, arg1,
+                                  build_real (type, c)));
            }
 
          /* Convert x+x*c into x*(c+1).  */
@@ -6077,8 +6092,8 @@ fold (tree expr)
 
              c = TREE_REAL_CST (TREE_OPERAND (arg1, 1));
              real_arithmetic (&c, PLUS_EXPR, &c, &dconst1);
-             return fold (build (MULT_EXPR, type, arg0,
-                                 build_real (type, c)));
+             return fold (build2 (MULT_EXPR, type, arg0,
+                                  build_real (type, c)));
            }
 
          /* Convert x*c1+x*c2 into x*(c1+c2).  */
@@ -6097,9 +6112,9 @@ fold (tree expr)
              c1 = TREE_REAL_CST (TREE_OPERAND (arg0, 1));
              c2 = TREE_REAL_CST (TREE_OPERAND (arg1, 1));
              real_arithmetic (&c1, PLUS_EXPR, &c1, &c2);
-             return fold (build (MULT_EXPR, type,
-                                 TREE_OPERAND (arg0, 0),
-                                 build_real (type, c1)));
+             return fold (build2 (MULT_EXPR, type,
+                                  TREE_OPERAND (arg0, 0),
+                                  build_real (type, c1)));
            }
           /* Convert a + (b*c + d*e) into (a + b*c) + d*e */
           if (flag_unsafe_math_optimizations
@@ -6112,8 +6127,8 @@ fold (tree expr)
                  && TREE_CODE (tree10) == MULT_EXPR)
                 {
                   tree tree0;
-                  tree0 = fold (build (PLUS_EXPR, type, arg0, tree10));
-                  return fold (build (PLUS_EXPR, type, tree0, tree11));
+                  tree0 = fold (build2 (PLUS_EXPR, type, arg0, tree10));
+                  return fold (build2 (PLUS_EXPR, type, tree0, tree11));
                 }
             }
           /* Convert (b*c + d*e) + a into b*c + (d*e +a) */
@@ -6127,8 +6142,8 @@ fold (tree expr)
                  && TREE_CODE (tree00) == MULT_EXPR)
                 {
                   tree tree0;
-                  tree0 = fold (build (PLUS_EXPR, type, tree01, arg1));
-                  return fold (build (PLUS_EXPR, type, tree00, tree0));
+                  tree0 = fold (build2 (PLUS_EXPR, type, tree01, arg1));
+                  return fold (build2 (PLUS_EXPR, type, tree00, tree0));
                 }
             }
        }
@@ -6163,8 +6178,8 @@ fold (tree expr)
                && TREE_INT_CST_HIGH (tree11) == 0
                && ((TREE_INT_CST_LOW (tree01) + TREE_INT_CST_LOW (tree11))
                    == TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (arg0, 0)))))
-             return build (LROTATE_EXPR, type, TREE_OPERAND (arg0, 0),
-                           code0 == LSHIFT_EXPR ? tree01 : tree11);
+             return build2 (LROTATE_EXPR, type, TREE_OPERAND (arg0, 0),
+                            code0 == LSHIFT_EXPR ? tree01 : tree11);
            else if (code11 == MINUS_EXPR)
              {
                tree tree110, tree111;
@@ -6178,10 +6193,10 @@ fold (tree expr)
                                              (TREE_TYPE (TREE_OPERAND
                                                          (arg0, 0))))
                    && operand_equal_p (tree01, tree111, 0))
-                 return build ((code0 == LSHIFT_EXPR
-                                ? LROTATE_EXPR
-                                : RROTATE_EXPR),
-                               type, TREE_OPERAND (arg0, 0), tree01);
+                 return build2 ((code0 == LSHIFT_EXPR
+                                 ? LROTATE_EXPR
+                                 : RROTATE_EXPR),
+                                type, TREE_OPERAND (arg0, 0), tree01);
              }
            else if (code01 == MINUS_EXPR)
              {
@@ -6196,10 +6211,10 @@ fold (tree expr)
                                              (TREE_TYPE (TREE_OPERAND
                                                          (arg0, 0))))
                    && operand_equal_p (tree11, tree011, 0))
-                 return build ((code0 != LSHIFT_EXPR
-                                ? LROTATE_EXPR
-                                : RROTATE_EXPR),
-                               type, TREE_OPERAND (arg0, 0), tree11);
+                 return build2 ((code0 != LSHIFT_EXPR
+                                 ? LROTATE_EXPR
+                                 : RROTATE_EXPR),
+                                type, TREE_OPERAND (arg0, 0), tree11);
              }
          }
       }
@@ -6302,15 +6317,15 @@ fold (tree expr)
     case MINUS_EXPR:
       /* A - (-B) -> A + B */
       if (TREE_CODE (arg1) == NEGATE_EXPR)
-       return fold (build (PLUS_EXPR, type, arg0, TREE_OPERAND (arg1, 0)));
+       return fold (build2 (PLUS_EXPR, type, arg0, TREE_OPERAND (arg1, 0)));
       /* (-A) - B -> (-B) - A  where B is easily negated and we can swap.  */
       if (TREE_CODE (arg0) == NEGATE_EXPR
          && (FLOAT_TYPE_P (type)
              || (INTEGRAL_TYPE_P (type) && flag_wrapv && !flag_trapv))
          && negate_expr_p (arg1)
          && reorder_operands_p (arg0, arg1))
-       return fold (build (MINUS_EXPR, type, negate_expr (arg1),
-                           TREE_OPERAND (arg0, 0)));
+       return fold (build2 (MINUS_EXPR, type, negate_expr (arg1),
+                            TREE_OPERAND (arg0, 0)));
 
       if (! FLOAT_TYPE_P (type))
        {
@@ -6324,15 +6339,15 @@ fold (tree expr)
              && TREE_CODE (arg1) == BIT_AND_EXPR)
            {
              if (operand_equal_p (arg0, TREE_OPERAND (arg1, 1), 0))
-               return fold (build (BIT_AND_EXPR, type,
-                                   fold (build1 (BIT_NOT_EXPR, type,
-                                                 TREE_OPERAND (arg1, 0))),
-                                   arg0));
+               return fold (build2 (BIT_AND_EXPR, type,
+                                    fold (build1 (BIT_NOT_EXPR, type,
+                                                  TREE_OPERAND (arg1, 0))),
+                                    arg0));
              if (operand_equal_p (arg0, TREE_OPERAND (arg1, 0), 0))
-               return fold (build (BIT_AND_EXPR, type,
-                                   fold (build1 (BIT_NOT_EXPR, type,
-                                                 TREE_OPERAND (arg1, 1))),
-                                   arg0));
+               return fold (build2 (BIT_AND_EXPR, type,
+                                    fold (build1 (BIT_NOT_EXPR, type,
+                                                  TREE_OPERAND (arg1, 1))),
+                                    arg0));
            }
 
          /* Fold (A & ~B) - (A & B) into (A ^ B) - B, where B is
@@ -6348,9 +6363,9 @@ fold (tree expr)
              
              if (operand_equal_p (tem, mask1, 0))
                {
-                 tem = fold (build (BIT_XOR_EXPR, type,
-                                    TREE_OPERAND (arg0, 0), mask1));
-                 return fold (build (MINUS_EXPR, type, tem, mask1));
+                 tem = fold (build2 (BIT_XOR_EXPR, type,
+                                     TREE_OPERAND (arg0, 0), mask1));
+                 return fold (build2 (MINUS_EXPR, type, tem, mask1));
                }
            }
        }
@@ -6379,7 +6394,7 @@ fold (tree expr)
       if (!wins && negate_expr_p (arg1)
          && (FLOAT_TYPE_P (type)
              || (INTEGRAL_TYPE_P (type) && flag_wrapv && !flag_trapv)))
-       return fold (build (PLUS_EXPR, type, arg0, negate_expr (arg1)));
+       return fold (build2 (PLUS_EXPR, type, arg0, negate_expr (arg1)));
 
       if (TREE_CODE (arg0) == MULT_EXPR
          && TREE_CODE (arg1) == MULT_EXPR
@@ -6388,19 +6403,19 @@ fold (tree expr)
           /* (A * C) - (B * C) -> (A-B) * C.  */
          if (operand_equal_p (TREE_OPERAND (arg0, 1),
                               TREE_OPERAND (arg1, 1), 0))
-           return fold (build (MULT_EXPR, type,
-                               fold (build (MINUS_EXPR, type,
-                                            TREE_OPERAND (arg0, 0),
-                                            TREE_OPERAND (arg1, 0))),
-                               TREE_OPERAND (arg0, 1)));
+           return fold (build2 (MULT_EXPR, type,
+                                fold (build2 (MINUS_EXPR, type,
+                                              TREE_OPERAND (arg0, 0),
+                                              TREE_OPERAND (arg1, 0))),
+                                TREE_OPERAND (arg0, 1)));
           /* (A * C1) - (A * C2) -> A * (C1-C2).  */
          if (operand_equal_p (TREE_OPERAND (arg0, 0),
                               TREE_OPERAND (arg1, 0), 0))
-           return fold (build (MULT_EXPR, type,
-                               TREE_OPERAND (arg0, 0),
-                               fold (build (MINUS_EXPR, type,
-                                            TREE_OPERAND (arg0, 1),
-                                            TREE_OPERAND (arg1, 1)))));
+           return fold (build2 (MULT_EXPR, type,
+                                TREE_OPERAND (arg0, 0),
+                                fold (build2 (MINUS_EXPR, type,
+                                              TREE_OPERAND (arg0, 1),
+                                              TREE_OPERAND (arg1, 1)))));
        }
 
       goto associate;
@@ -6408,13 +6423,13 @@ fold (tree expr)
     case MULT_EXPR:
       /* (-A) * (-B) -> A * B  */
       if (TREE_CODE (arg0) == NEGATE_EXPR && negate_expr_p (arg1))
-       return fold (build (MULT_EXPR, type,
-                           TREE_OPERAND (arg0, 0),
-                           negate_expr (arg1)));
+       return fold (build2 (MULT_EXPR, type,
+                            TREE_OPERAND (arg0, 0),
+                            negate_expr (arg1)));
       if (TREE_CODE (arg1) == NEGATE_EXPR && negate_expr_p (arg0))
-       return fold (build (MULT_EXPR, type,
-                           negate_expr (arg0),
-                           TREE_OPERAND (arg1, 0)));
+       return fold (build2 (MULT_EXPR, type,
+                            negate_expr (arg0),
+                            TREE_OPERAND (arg1, 0)));
 
       if (! FLOAT_TYPE_P (type))
        {
@@ -6426,12 +6441,12 @@ fold (tree expr)
          /* (a * (1 << b)) is (a << b)  */
          if (TREE_CODE (arg1) == LSHIFT_EXPR
              && integer_onep (TREE_OPERAND (arg1, 0)))
-           return fold (build (LSHIFT_EXPR, type, arg0,
-                               TREE_OPERAND (arg1, 1)));
+           return fold (build2 (LSHIFT_EXPR, type, arg0,
+                                TREE_OPERAND (arg1, 1)));
          if (TREE_CODE (arg0) == LSHIFT_EXPR
              && integer_onep (TREE_OPERAND (arg0, 0)))
-           return fold (build (LSHIFT_EXPR, type, arg1,
-                               TREE_OPERAND (arg0, 1)));
+           return fold (build2 (LSHIFT_EXPR, type, arg1,
+                                TREE_OPERAND (arg0, 1)));
 
          if (TREE_CODE (arg1) == INTEGER_CST
              && 0 != (tem = extract_muldiv (TREE_OPERAND (t, 0),
@@ -6469,8 +6484,8 @@ fold (tree expr)
              tree tem = const_binop (MULT_EXPR, TREE_OPERAND (arg0, 0),
                                      arg1, 0);
              if (tem)
-               return fold (build (RDIV_EXPR, type, tem,
-                                   TREE_OPERAND (arg0, 1)));
+               return fold (build2 (RDIV_EXPR, type, tem,
+                                    TREE_OPERAND (arg0, 1)));
            }
 
          if (flag_unsafe_math_optimizations)
@@ -6493,7 +6508,7 @@ fold (tree expr)
 
                  /* Optimize root(x)*root(y) as root(x*y).  */
                  rootfn = TREE_OPERAND (TREE_OPERAND (arg0, 0), 0);
-                 arg = fold (build (MULT_EXPR, type, arg00, arg10));
+                 arg = fold (build2 (MULT_EXPR, type, arg00, arg10));
                  arglist = build_tree_list (NULL_TREE, arg);
                  return build_function_call_expr (rootfn, arglist);
                }
@@ -6502,9 +6517,9 @@ fold (tree expr)
              if (fcode0 == fcode1 && BUILTIN_EXPONENT_P (fcode0))
                {
                  tree expfn = TREE_OPERAND (TREE_OPERAND (arg0, 0), 0);
-                 tree arg = build (PLUS_EXPR, type,
-                                   TREE_VALUE (TREE_OPERAND (arg0, 1)),
-                                   TREE_VALUE (TREE_OPERAND (arg1, 1)));
+                 tree arg = build2 (PLUS_EXPR, type,
+                                    TREE_VALUE (TREE_OPERAND (arg0, 1)),
+                                    TREE_VALUE (TREE_OPERAND (arg1, 1)));
                  tree arglist = build_tree_list (NULL_TREE, fold (arg));
                  return build_function_call_expr (expfn, arglist);
                }
@@ -6525,7 +6540,7 @@ fold (tree expr)
                  if (operand_equal_p (arg01, arg11, 0))
                    {
                      tree powfn = TREE_OPERAND (TREE_OPERAND (arg0, 0), 0);
-                     tree arg = build (MULT_EXPR, type, arg00, arg10);
+                     tree arg = build2 (MULT_EXPR, type, arg00, arg10);
                      tree arglist = tree_cons (NULL_TREE, fold (arg),
                                                build_tree_list (NULL_TREE,
                                                                 arg01));
@@ -6536,7 +6551,7 @@ fold (tree expr)
                  if (operand_equal_p (arg00, arg10, 0))
                    {
                      tree powfn = TREE_OPERAND (TREE_OPERAND (arg0, 0), 0);
-                     tree arg = fold (build (PLUS_EXPR, type, arg01, arg11));
+                     tree arg = fold (build2 (PLUS_EXPR, type, arg01, arg11));
                      tree arglist = tree_cons (NULL_TREE, arg00,
                                                build_tree_list (NULL_TREE,
                                                                 arg));
@@ -6651,9 +6666,9 @@ fold (tree expr)
          && TREE_CODE (arg1) == BIT_NOT_EXPR)
        {
          return fold (build1 (BIT_NOT_EXPR, type,
-                              build (BIT_AND_EXPR, type,
-                                     TREE_OPERAND (arg0, 0),
-                                     TREE_OPERAND (arg1, 0))));
+                              build2 (BIT_AND_EXPR, type,
+                                      TREE_OPERAND (arg0, 0),
+                                      TREE_OPERAND (arg1, 0))));
        }
 
       /* See if this can be simplified into a rotate first.  If that
@@ -6721,9 +6736,9 @@ fold (tree expr)
          && TREE_CODE (arg1) == BIT_NOT_EXPR)
        {
          return fold (build1 (BIT_NOT_EXPR, type,
-                              build (BIT_IOR_EXPR, type,
-                                     TREE_OPERAND (arg0, 0),
-                                     TREE_OPERAND (arg1, 0))));
+                              build2 (BIT_IOR_EXPR, type,
+                                      TREE_OPERAND (arg0, 0),
+                                      TREE_OPERAND (arg1, 0))));
        }
 
       goto associate;
@@ -6738,13 +6753,13 @@ fold (tree expr)
 
       /* (-A) / (-B) -> A / B  */
       if (TREE_CODE (arg0) == NEGATE_EXPR && negate_expr_p (arg1))
-       return fold (build (RDIV_EXPR, type,
-                           TREE_OPERAND (arg0, 0),
-                           negate_expr (arg1)));
+       return fold (build2 (RDIV_EXPR, type,
+                            TREE_OPERAND (arg0, 0),
+                            negate_expr (arg1)));
       if (TREE_CODE (arg1) == NEGATE_EXPR && negate_expr_p (arg0))
-       return fold (build (RDIV_EXPR, type,
-                           negate_expr (arg0),
-                           TREE_OPERAND (arg1, 0)));
+       return fold (build2 (RDIV_EXPR, type,
+                            negate_expr (arg0),
+                            TREE_OPERAND (arg1, 0)));
 
       /* In IEEE floating point, x/1 is not equivalent to x for snans.  */
       if (!HONOR_SNANS (TYPE_MODE (TREE_TYPE (arg0)))
@@ -6766,7 +6781,7 @@ fold (tree expr)
          if (flag_unsafe_math_optimizations
              && 0 != (tem = const_binop (code, build_real (type, dconst1),
                                          arg1, 0)))
-           return fold (build (MULT_EXPR, type, arg0, tem));
+           return fold (build2 (MULT_EXPR, type, arg0, tem));
          /* Find the reciprocal if optimizing and the result is exact.  */
          if (optimize)
            {
@@ -6775,24 +6790,24 @@ fold (tree expr)
              if (exact_real_inverse (TYPE_MODE(TREE_TYPE(arg0)), &r))
                {
                  tem = build_real (type, r);
-                 return fold (build (MULT_EXPR, type, arg0, tem));
+                 return fold (build2 (MULT_EXPR, type, arg0, tem));
                }
            }
        }
       /* Convert A/B/C to A/(B*C).  */
       if (flag_unsafe_math_optimizations
          && TREE_CODE (arg0) == RDIV_EXPR)
-       return fold (build (RDIV_EXPR, type, TREE_OPERAND (arg0, 0),
-                           fold (build (MULT_EXPR, type,
-                                        TREE_OPERAND (arg0, 1), arg1))));
+       return fold (build2 (RDIV_EXPR, type, TREE_OPERAND (arg0, 0),
+                            fold (build2 (MULT_EXPR, type,
+                                          TREE_OPERAND (arg0, 1), arg1))));
 
       /* Convert A/(B/C) to (A/B)*C.  */
       if (flag_unsafe_math_optimizations
          && TREE_CODE (arg1) == RDIV_EXPR)
-       return fold (build (MULT_EXPR, type,
-                           fold (build (RDIV_EXPR, type, arg0,
-                                        TREE_OPERAND (arg1, 0))),
-                           TREE_OPERAND (arg1, 1)));
+       return fold (build2 (MULT_EXPR, type,
+                            fold (build2 (RDIV_EXPR, type, arg0,
+                                          TREE_OPERAND (arg1, 0))),
+                            TREE_OPERAND (arg1, 1)));
 
       /* Convert C1/(X*C2) into (C1/C2)/X.  */
       if (flag_unsafe_math_optimizations
@@ -6803,8 +6818,8 @@ fold (tree expr)
          tree tem = const_binop (RDIV_EXPR, arg0,
                                  TREE_OPERAND (arg1, 1), 0);
          if (tem)
-           return fold (build (RDIV_EXPR, type, tem,
-                               TREE_OPERAND (arg1, 0)));
+           return fold (build2 (RDIV_EXPR, type, tem,
+                                TREE_OPERAND (arg1, 0)));
        }
 
       if (flag_unsafe_math_optimizations)
@@ -6818,7 +6833,7 @@ fold (tree expr)
              tree arglist = build_tree_list (NULL_TREE,
                                              fold_convert (type, arg));
              arg1 = build_function_call_expr (expfn, arglist);
-             return fold (build (MULT_EXPR, type, arg0, arg1));
+             return fold (build2 (MULT_EXPR, type, arg0, arg1));
            }
 
          /* Optimize x/pow(y,z) into x*pow(y,-z).  */
@@ -6833,7 +6848,7 @@ fold (tree expr)
              tree arglist = tree_cons(NULL_TREE, arg10,
                                       build_tree_list (NULL_TREE, neg11));
              arg1 = build_function_call_expr (powfn, arglist);
-             return fold (build (MULT_EXPR, type, arg0, arg1));
+             return fold (build2 (MULT_EXPR, type, arg0, arg1));
            }
        }
 
@@ -6869,9 +6884,8 @@ fold (tree expr)
                {
                  tree tmp = TREE_OPERAND (arg0, 1);
                  tmp = build_function_call_expr (tanfn, tmp);
-                 return fold (build (RDIV_EXPR, type,
-                                     build_real (type, dconst1),
-                                     tmp));
+                 return fold (build2 (RDIV_EXPR, type,
+                                      build_real (type, dconst1), tmp));
                }
            }
 
@@ -6925,7 +6939,7 @@ fold (tree expr)
         after the last round to changes to the DIV code in expmed.c.  */
       if ((code == CEIL_DIV_EXPR || code == FLOOR_DIV_EXPR)
          && multiple_of_p (type, arg0, arg1))
-       return fold (build (EXACT_DIV_EXPR, type, arg0, arg1));
+       return fold (build2 (EXACT_DIV_EXPR, type, arg0, arg1));
 
       if (TREE_CODE (arg1) == INTEGER_CST
          && 0 != (tem = extract_muldiv (TREE_OPERAND (t, 0), arg1,
@@ -6986,7 +7000,7 @@ fold (tree expr)
          tree tem = build_int_2 (GET_MODE_BITSIZE (TYPE_MODE (type)), 0);
          tem = fold_convert (TREE_TYPE (arg1), tem);
          tem = const_binop (MINUS_EXPR, tem, arg1, 0);
-         return fold (build (RROTATE_EXPR, type, arg0, tem));
+         return fold (build2 (RROTATE_EXPR, type, arg0, tem));
        }
 
       /* If we have a rotate of a bit operation with the rotate count and
@@ -6997,11 +7011,11 @@ fold (tree expr)
              || TREE_CODE (arg0) == BIT_IOR_EXPR
              || TREE_CODE (arg0) == BIT_XOR_EXPR)
          && TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST)
-       return fold (build (TREE_CODE (arg0), type,
-                           fold (build (code, type,
-                                        TREE_OPERAND (arg0, 0), arg1)),
-                           fold (build (code, type,
-                                        TREE_OPERAND (arg0, 1), arg1))));
+       return fold (build2 (TREE_CODE (arg0), type,
+                            fold (build2 (code, type,
+                                          TREE_OPERAND (arg0, 0), arg1)),
+                            fold (build2 (code, type,
+                                          TREE_OPERAND (arg0, 1), arg1))));
 
       /* Two consecutive rotates adding up to the width of the mode can
         be ignored.  */
@@ -7102,23 +7116,23 @@ fold (tree expr)
                                 || code == TRUTH_OR_EXPR));
 
          if (operand_equal_p (a00, a10, 0))
-           return fold (build (TREE_CODE (arg0), type, a00,
-                               fold (build (code, type, a01, a11))));
+           return fold (build2 (TREE_CODE (arg0), type, a00,
+                                fold (build2 (code, type, a01, a11))));
          else if (commutative && operand_equal_p (a00, a11, 0))
-           return fold (build (TREE_CODE (arg0), type, a00,
-                               fold (build (code, type, a01, a10))));
+           return fold (build2 (TREE_CODE (arg0), type, a00,
+                                fold (build2 (code, type, a01, a10))));
          else if (commutative && operand_equal_p (a01, a10, 0))
-           return fold (build (TREE_CODE (arg0), type, a01,
-                               fold (build (code, type, a00, a11))));
+           return fold (build2 (TREE_CODE (arg0), type, a01,
+                                fold (build2 (code, type, a00, a11))));
 
          /* This case if tricky because we must either have commutative
             operators or else A10 must not have side-effects.  */
 
          else if ((commutative || ! TREE_SIDE_EFFECTS (a10))
                   && operand_equal_p (a01, a11, 0))
-           return fold (build (TREE_CODE (arg0), type,
-                               fold (build (code, type, a00, a10)),
-                               a01));
+           return fold (build2 (TREE_CODE (arg0), type,
+                                fold (build2 (code, type, a00, a10)),
+                                a01));
        }
 
       /* See if we can build a range comparison.  */
@@ -7131,7 +7145,7 @@ fold (tree expr)
       if (TREE_CODE (arg0) == code
          && 0 != (tem = fold_truthop (code, type,
                                       TREE_OPERAND (arg0, 1), arg1)))
-       return fold (build (code, type, TREE_OPERAND (arg0, 0), tem));
+       return fold (build2 (code, type, TREE_OPERAND (arg0, 0), tem));
 
       if ((tem = fold_truthop (code, type, arg0, arg1)) != 0)
        return tem;
@@ -7187,7 +7201,7 @@ fold (tree expr)
     case GE_EXPR:
       /* If one arg is a real or integer constant, put it last.  */
       if (tree_swap_operands_p (arg0, arg1, true))
-       return fold (build (swap_tree_comparison (code), type, arg1, arg0));
+       return fold (build2 (swap_tree_comparison (code), type, arg1, arg0));
 
       /* If this is an equality comparison of the address of a non-weak
         object against zero, then we know the result.  */
@@ -7239,14 +7253,14 @@ fold (tree expr)
 
          /* Fold (double)float1 CMP (double)float2 into float1 CMP float2.  */
          if (TYPE_PRECISION (newtype) < TYPE_PRECISION (TREE_TYPE (arg0)))
-           return fold (build (code, type, fold_convert (newtype, targ0),
-                               fold_convert (newtype, targ1)));
+           return fold (build2 (code, type, fold_convert (newtype, targ0),
+                                fold_convert (newtype, targ1)));
 
          /* (-a) CMP (-b) -> b CMP a  */
          if (TREE_CODE (arg0) == NEGATE_EXPR
              && TREE_CODE (arg1) == NEGATE_EXPR)
-           return fold (build (code, type, TREE_OPERAND (arg1, 0),
-                               TREE_OPERAND (arg0, 0)));
+           return fold (build2 (code, type, TREE_OPERAND (arg1, 0),
+                                TREE_OPERAND (arg0, 0)));
 
          if (TREE_CODE (arg1) == REAL_CST)
          {
@@ -7256,16 +7270,16 @@ fold (tree expr)
            /* (-a) CMP CST -> a swap(CMP) (-CST)  */
            if (TREE_CODE (arg0) == NEGATE_EXPR)
              return
-               fold (build (swap_tree_comparison (code), type,
-                            TREE_OPERAND (arg0, 0),
-                            build_real (TREE_TYPE (arg1),
-                                        REAL_VALUE_NEGATE (cst))));
+               fold (build2 (swap_tree_comparison (code), type,
+                             TREE_OPERAND (arg0, 0),
+                             build_real (TREE_TYPE (arg1),
+                                         REAL_VALUE_NEGATE (cst))));
 
            /* IEEE doesn't distinguish +0 and -0 in comparisons.  */
            /* a CMP (-0) -> a CMP 0  */
            if (REAL_VALUE_MINUS_ZERO (cst))
-             return fold (build (code, type, arg0,
-                                 build_real (TREE_TYPE (arg1), dconst0)));
+             return fold (build2 (code, type, arg0,
+                                  build_real (TREE_TYPE (arg1), dconst0)));
 
            /* x != NaN is always true, other ops are always false.  */
            if (REAL_VALUE_ISNAN (cst)
@@ -7297,7 +7311,7 @@ fold (tree expr)
                                          ? MINUS_EXPR : PLUS_EXPR,
                                          arg1, TREE_OPERAND (arg0, 1), 0))
              && ! TREE_CONSTANT_OVERFLOW (tem))
-           return fold (build (code, type, TREE_OPERAND (arg0, 0), tem));
+           return fold (build2 (code, type, TREE_OPERAND (arg0, 0), tem));
 
          /* Likewise, we can simplify a comparison of a real constant with
             a MINUS_EXPR whose first operand is also a real constant, i.e.
@@ -7309,8 +7323,8 @@ fold (tree expr)
              && 0 != (tem = const_binop (MINUS_EXPR, TREE_OPERAND (arg0, 0),
                                          arg1, 0))
              && ! TREE_CONSTANT_OVERFLOW (tem))
-           return fold (build (swap_tree_comparison (code), type,
-                               TREE_OPERAND (arg0, 1), tem));
+           return fold (build2 (swap_tree_comparison (code), type,
+                                TREE_OPERAND (arg0, 1), tem));
 
          /* Fold comparisons against built-in math functions.  */
          if (TREE_CODE (arg1) == REAL_CST
@@ -7401,11 +7415,11 @@ fold (tree expr)
            {
            case GE_EXPR:
              arg1 = const_binop (MINUS_EXPR, arg1, integer_one_node, 0);
-             return fold (build (GT_EXPR, type, arg0, arg1));
+             return fold (build2 (GT_EXPR, type, arg0, arg1));
 
            case LT_EXPR:
              arg1 = const_binop (MINUS_EXPR, arg1, integer_one_node, 0);
-             return fold (build (LE_EXPR, type, arg0, arg1));
+             return fold (build2 (LE_EXPR, type, arg0, arg1));
 
            default:
              break;
@@ -7453,7 +7467,7 @@ fold (tree expr)
                                                         integer_zero_node),
                                           arg0);
                case GE_EXPR:
-                 return fold (build (EQ_EXPR, type, arg0, arg1));
+                 return fold (build2 (EQ_EXPR, type, arg0, arg1));
 
                case LE_EXPR:
                  return omit_one_operand (type,
@@ -7461,7 +7475,7 @@ fold (tree expr)
                                                         integer_one_node),
                                           arg0);
                case LT_EXPR:
-                 return fold (build (NE_EXPR, type, arg0, arg1));
+                 return fold (build2 (NE_EXPR, type, arg0, arg1));
 
                /* The GE_EXPR and LT_EXPR cases above are not normally
                   reached because of previous transformations.  */
@@ -7475,10 +7489,10 @@ fold (tree expr)
                {
                case GT_EXPR:
                  arg1 = const_binop (PLUS_EXPR, arg1, integer_one_node, 0);
-                 return fold (build (EQ_EXPR, type, arg0, arg1));
+                 return fold (build2 (EQ_EXPR, type, arg0, arg1));
                case LE_EXPR:
                  arg1 = const_binop (PLUS_EXPR, arg1, integer_one_node, 0);
-                 return fold (build (NE_EXPR, type, arg0, arg1));
+                 return fold (build2 (NE_EXPR, type, arg0, arg1));
                default:
                  break;
                }
@@ -7492,7 +7506,7 @@ fold (tree expr)
                                                         integer_zero_node),
                                           arg0);
                case LE_EXPR:
-                 return fold (build (EQ_EXPR, type, arg0, arg1));
+                 return fold (build2 (EQ_EXPR, type, arg0, arg1));
 
                case GE_EXPR:
                  return omit_one_operand (type,
@@ -7500,7 +7514,7 @@ fold (tree expr)
                                                         integer_one_node),
                                           arg0);
                case GT_EXPR:
-                 return fold (build (NE_EXPR, type, arg0, arg1));
+                 return fold (build2 (NE_EXPR, type, arg0, arg1));
 
                default:
                  break;
@@ -7511,10 +7525,10 @@ fold (tree expr)
                {
                case GE_EXPR:
                  arg1 = const_binop (MINUS_EXPR, arg1, integer_one_node, 0);
-                 return fold (build (NE_EXPR, type, arg0, arg1));
+                 return fold (build2 (NE_EXPR, type, arg0, arg1));
                case LT_EXPR:
                  arg1 = const_binop (MINUS_EXPR, arg1, integer_one_node, 0);
-                 return fold (build (EQ_EXPR, type, arg0, arg1));
+                 return fold (build2 (EQ_EXPR, type, arg0, arg1));
                default:
                  break;
                }
@@ -7534,9 +7548,9 @@ fold (tree expr)
                    st0 = lang_hooks.types.signed_type (TREE_TYPE (arg0));
                    st1 = lang_hooks.types.signed_type (TREE_TYPE (arg1));
                    return fold
-                     (build (code == LE_EXPR ? GE_EXPR: LT_EXPR,
-                             type, fold_convert (st0, arg0),
-                             fold_convert (st1, integer_zero_node)));
+                     (build2 (code == LE_EXPR ? GE_EXPR: LT_EXPR,
+                              type, fold_convert (st0, arg0),
+                              fold_convert (st1, integer_zero_node)));
                  }
              }
          }
@@ -7554,7 +7568,7 @@ fold (tree expr)
                                      ? MINUS_EXPR : PLUS_EXPR,
                                      arg1, TREE_OPERAND (arg0, 1), 0))
          && ! TREE_CONSTANT_OVERFLOW (tem))
-       return fold (build (code, type, TREE_OPERAND (arg0, 0), tem));
+       return fold (build2 (code, type, TREE_OPERAND (arg0, 0), tem));
 
       /* Similarly for a NEGATE_EXPR.  */
       else if ((code == EQ_EXPR || code == NE_EXPR)
@@ -7563,14 +7577,14 @@ fold (tree expr)
               && 0 != (tem = negate_expr (arg1))
               && TREE_CODE (tem) == INTEGER_CST
               && ! TREE_CONSTANT_OVERFLOW (tem))
-       return fold (build (code, type, TREE_OPERAND (arg0, 0), tem));
+       return fold (build2 (code, type, TREE_OPERAND (arg0, 0), tem));
 
       /* If we have X - Y == 0, we can convert that to X == Y and similarly
         for !=.  Don't do this for ordered comparisons due to overflow.  */
       else if ((code == NE_EXPR || code == EQ_EXPR)
               && integer_zerop (arg1) && TREE_CODE (arg0) == MINUS_EXPR)
-       return fold (build (code, type,
-                           TREE_OPERAND (arg0, 0), TREE_OPERAND (arg0, 1)));
+       return fold (build2 (code, type,
+                            TREE_OPERAND (arg0, 0), TREE_OPERAND (arg0, 1)));
 
       /* If we are widening one operand of an integer comparison,
         see if the other operand is similarly being widened.  Perhaps we
@@ -7585,8 +7599,8 @@ fold (tree expr)
               && (TREE_TYPE (t1) == TREE_TYPE (tem)
                   || (TREE_CODE (t1) == INTEGER_CST
                       && int_fits_type_p (t1, TREE_TYPE (tem)))))
-       return fold (build (code, type, tem,
-                           fold_convert (TREE_TYPE (tem), t1)));
+       return fold (build2 (code, type, tem,
+                            fold_convert (TREE_TYPE (tem), t1)));
 
       /* If this is comparing a constant with a MIN_EXPR or a MAX_EXPR of a
         constant, we can simplify it.  */
@@ -7607,10 +7621,11 @@ fold (tree expr)
               && (0 != (tem = negate_expr (arg1)))
               && TREE_CODE (tem) == INTEGER_CST
               && ! TREE_CONSTANT_OVERFLOW (tem))
-       return fold (build (TRUTH_ANDIF_EXPR, type,
-                           build (GE_EXPR, type, TREE_OPERAND (arg0, 0), tem),
-                           build (LE_EXPR, type,
-                                  TREE_OPERAND (arg0, 0), arg1)));
+       return fold (build2 (TRUTH_ANDIF_EXPR, type,
+                            build2 (GE_EXPR, type,
+                                    TREE_OPERAND (arg0, 0), tem),
+                            build2 (LE_EXPR, type,
+                                    TREE_OPERAND (arg0, 0), arg1)));
 
       /* If this is an EQ or NE comparison with zero and ARG0 is
         (1 << foo) & bar, convert it to (bar >> foo) & 1.  Both require
@@ -7620,30 +7635,28 @@ fold (tree expr)
       if (integer_zerop (arg1) && (code == EQ_EXPR || code == NE_EXPR)
          && TREE_CODE (arg0) == BIT_AND_EXPR)
        {
-         if (TREE_CODE (TREE_OPERAND (arg0, 0)) == LSHIFT_EXPR
-             && integer_onep (TREE_OPERAND (TREE_OPERAND (arg0, 0), 0)))
+         tree arg00 = TREE_OPERAND (arg0, 0);
+         tree arg01 = TREE_OPERAND (arg0, 1);
+         if (TREE_CODE (arg00) == LSHIFT_EXPR
+             && integer_onep (TREE_OPERAND (arg00, 0)))
            return
-             fold (build (code, type,
-                          build (BIT_AND_EXPR, TREE_TYPE (arg0),
-                                 build (RSHIFT_EXPR,
-                                        TREE_TYPE (TREE_OPERAND (arg0, 0)),
-                                        TREE_OPERAND (arg0, 1),
-                                        TREE_OPERAND (TREE_OPERAND (arg0, 0), 1)),
-                                 fold_convert (TREE_TYPE (arg0),
-                                               integer_one_node)),
-                          arg1));
+             fold (build2 (code, type,
+                           build2 (BIT_AND_EXPR, TREE_TYPE (arg0),
+                                   build2 (RSHIFT_EXPR, TREE_TYPE (arg00),
+                                           arg01, TREE_OPERAND (arg00, 1)),
+                                   fold_convert (TREE_TYPE (arg0),
+                                                 integer_one_node)),
+                           arg1));
          else if (TREE_CODE (TREE_OPERAND (arg0, 1)) == LSHIFT_EXPR
                   && integer_onep (TREE_OPERAND (TREE_OPERAND (arg0, 1), 0)))
            return
-             fold (build (code, type,
-                          build (BIT_AND_EXPR, TREE_TYPE (arg0),
-                                 build (RSHIFT_EXPR,
-                                        TREE_TYPE (TREE_OPERAND (arg0, 1)),
-                                        TREE_OPERAND (arg0, 0),
-                                        TREE_OPERAND (TREE_OPERAND (arg0, 1), 1)),
-                                 fold_convert (TREE_TYPE (arg0),
-                                               integer_one_node)),
-                          arg1));
+             fold (build2 (code, type,
+                           build2 (BIT_AND_EXPR, TREE_TYPE (arg0),
+                                   build2 (RSHIFT_EXPR, TREE_TYPE (arg01),
+                                           arg00, TREE_OPERAND (arg01, 1)),
+                                   fold_convert (TREE_TYPE (arg0),
+                                                 integer_one_node)),
+                           arg1));
        }
 
       /* If this is an NE or EQ comparison of zero against the result of a
@@ -7659,13 +7672,13 @@ fold (tree expr)
          && integer_pow2p (TREE_OPERAND (arg0, 1)))
        {
          tree newtype = lang_hooks.types.unsigned_type (TREE_TYPE (arg0));
-         tree newmod = build (TREE_CODE (arg0), newtype,
-                              fold_convert (newtype,
-                                            TREE_OPERAND (arg0, 0)),
-                              fold_convert (newtype,
-                                            TREE_OPERAND (arg0, 1)));
+         tree newmod = build2 (TREE_CODE (arg0), newtype,
+                               fold_convert (newtype,
+                                             TREE_OPERAND (arg0, 0)),
+                               fold_convert (newtype,
+                                             TREE_OPERAND (arg0, 1)));
 
-         return build (code, type, newmod, fold_convert (newtype, arg1));
+         return build2 (code, type, newmod, fold_convert (newtype, arg1));
        }
 
       /* If this is an NE comparison of zero with an AND of one, remove the
@@ -7681,8 +7694,8 @@ fold (tree expr)
          && TREE_CODE (arg0) == BIT_AND_EXPR
          && integer_pow2p (TREE_OPERAND (arg0, 1))
          && operand_equal_p (TREE_OPERAND (arg0, 1), arg1, 0))
-       return fold (build (code == EQ_EXPR ? NE_EXPR : EQ_EXPR, type,
-                           arg0, integer_zero_node));
+       return fold (build2 (code == EQ_EXPR ? NE_EXPR : EQ_EXPR, type,
+                            arg0, integer_zero_node));
 
       /* If we have (A & C) != 0 or (A & C) == 0 and C is a power of
         2, then fold the expression into shifts and logical operations.  */
@@ -7698,10 +7711,10 @@ fold (tree expr)
          && TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST)
        {
          tree dandnotc
-           = fold (build (BIT_AND_EXPR, TREE_TYPE (arg0),
-                          arg1, build1 (BIT_NOT_EXPR,
-                                        TREE_TYPE (TREE_OPERAND (arg0, 1)),
-                                        TREE_OPERAND (arg0, 1))));
+           = fold (build2 (BIT_AND_EXPR, TREE_TYPE (arg0),
+                           arg1, build1 (BIT_NOT_EXPR,
+                                         TREE_TYPE (TREE_OPERAND (arg0, 1)),
+                                         TREE_OPERAND (arg0, 1))));
          tree rslt = code == EQ_EXPR ? integer_zero_node : integer_one_node;
          if (integer_nonzerop (dandnotc))
            return omit_one_operand (type, rslt, arg0);
@@ -7715,9 +7728,9 @@ fold (tree expr)
          && TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST)
        {
          tree candnotd
-           = fold (build (BIT_AND_EXPR, TREE_TYPE (arg0),
-                          TREE_OPERAND (arg0, 1),
-                          build1 (BIT_NOT_EXPR, TREE_TYPE (arg1), arg1)));
+           = fold (build2 (BIT_AND_EXPR, TREE_TYPE (arg0),
+                           TREE_OPERAND (arg0, 1),
+                           build1 (BIT_NOT_EXPR, TREE_TYPE (arg1), arg1)));
          tree rslt = code == EQ_EXPR ? integer_zero_node : integer_one_node;
          if (integer_nonzerop (candnotd))
            return omit_one_operand (type, rslt, arg0);
@@ -7729,10 +7742,10 @@ fold (tree expr)
          && TYPE_UNSIGNED (TREE_TYPE (arg0))
          && TREE_CODE (arg1) == LSHIFT_EXPR
          && integer_onep (TREE_OPERAND (arg1, 0)))
-       return build (code == LT_EXPR ? EQ_EXPR : NE_EXPR, type,
-                     build (RSHIFT_EXPR, TREE_TYPE (arg0), arg0,
-                            TREE_OPERAND (arg1, 1)),
-                     fold_convert (TREE_TYPE (arg0), integer_zero_node));
+       return build2 (code == LT_EXPR ? EQ_EXPR : NE_EXPR, type,
+                      build2 (RSHIFT_EXPR, TREE_TYPE (arg0), arg0,
+                              TREE_OPERAND (arg1, 1)),
+                      fold_convert (TREE_TYPE (arg0), integer_zero_node));
 
       else if ((code == LT_EXPR || code == GE_EXPR)
               && TYPE_UNSIGNED (TREE_TYPE (arg0))
@@ -7741,12 +7754,12 @@ fold (tree expr)
               && TREE_CODE (TREE_OPERAND (arg1, 0)) == LSHIFT_EXPR
               && integer_onep (TREE_OPERAND (TREE_OPERAND (arg1, 0), 0)))
        return
-         build (code == LT_EXPR ? EQ_EXPR : NE_EXPR, type,
-                fold_convert (TREE_TYPE (arg0),
-                              build (RSHIFT_EXPR, TREE_TYPE (arg0), arg0,
-                                     TREE_OPERAND (TREE_OPERAND (arg1, 0),
-                                                   1))),
-                fold_convert (TREE_TYPE (arg0), integer_zero_node));
+         build2 (code == LT_EXPR ? EQ_EXPR : NE_EXPR, type,
+                 fold_convert (TREE_TYPE (arg0),
+                               build2 (RSHIFT_EXPR, TREE_TYPE (arg0), arg0,
+                                       TREE_OPERAND (TREE_OPERAND (arg1, 0),
+                                                     1))),
+                 fold_convert (TREE_TYPE (arg0), integer_zero_node));
 
       /* Simplify comparison of something with itself.  (For IEEE
         floating-point, we can only do some of these simplifications.)  */
@@ -7765,7 +7778,7 @@ fold (tree expr)
              if (! FLOAT_TYPE_P (TREE_TYPE (arg0))
                  || ! HONOR_NANS (TYPE_MODE (TREE_TYPE (arg0))))
                return constant_boolean_node (1, type);
-             return fold (build (EQ_EXPR, type, arg0, arg1));
+             return fold (build2 (EQ_EXPR, type, arg0, arg1));
 
            case NE_EXPR:
              /* For NE, we can only do this simplification if integer
@@ -7819,17 +7832,20 @@ fold (tree expr)
                 was the same as ARG1.  */
 
              tree high_result
-               = fold (build (code, type,
-                              eval_subst (arg0, cval1, maxval, cval2, minval),
-                              arg1));
+               = fold (build2 (code, type,
+                               eval_subst (arg0, cval1, maxval,
+                                           cval2, minval),
+                               arg1));
              tree equal_result
-               = fold (build (code, type,
-                              eval_subst (arg0, cval1, maxval, cval2, maxval),
-                              arg1));
+               = fold (build2 (code, type,
+                               eval_subst (arg0, cval1, maxval,
+                                           cval2, maxval),
+                               arg1));
              tree low_result
-               = fold (build (code, type,
-                              eval_subst (arg0, cval1, minval, cval2, maxval),
-                              arg1));
+               = fold (build2 (code, type,
+                               eval_subst (arg0, cval1, minval,
+                                           cval2, maxval),
+                               arg1));
 
              /* All three of these results should be 0 or 1.  Confirm they
                 are.  Then use those values to select the proper code
@@ -7874,7 +7890,7 @@ fold (tree expr)
                      return omit_one_operand (type, integer_one_node, arg0);
                    }
 
-                 tem = build (code, type, cval1, cval2);
+                 tem = build2 (code, type, cval1, cval2);
                  if (save_p)
                    return save_expr (tem);
                  else
@@ -7918,11 +7934,11 @@ fold (tree expr)
          real1 = fold (build1 (REALPART_EXPR, subtype, arg1));
          imag1 = fold (build1 (IMAGPART_EXPR, subtype, arg1));
 
-         return fold (build ((code == EQ_EXPR ? TRUTH_ANDIF_EXPR
-                              : TRUTH_ORIF_EXPR),
-                             type,
-                             fold (build (code, type, real0, real1)),
-                             fold (build (code, type, imag0, imag1))));
+         return fold (build2 ((code == EQ_EXPR ? TRUTH_ANDIF_EXPR
+                               : TRUTH_ORIF_EXPR),
+                              type,
+                              fold (build2 (code, type, real0, real1)),
+                              fold (build2 (code, type, imag0, imag1))));
        }
 
       /* Optimize comparisons of strlen vs zero to a compare of the
@@ -7945,10 +7961,10 @@ fold (tree expr)
              && (arglist = TREE_OPERAND (arg0, 1))
              && TREE_CODE (TREE_TYPE (TREE_VALUE (arglist))) == POINTER_TYPE
              && ! TREE_CHAIN (arglist))
-           return fold (build (code, type,
-                               build1 (INDIRECT_REF, char_type_node,
-                                       TREE_VALUE(arglist)),
-                               integer_zero_node));
+           return fold (build2 (code, type,
+                                build1 (INDIRECT_REF, char_type_node,
+                                        TREE_VALUE(arglist)),
+                                integer_zero_node));
        }
 
       /* We can fold X/C1 op C2 where C1 and C2 are integer constants
@@ -8120,21 +8136,21 @@ fold (tree expr)
                     corresponding COND_EXPR.  */
                  if (!HONOR_NANS (TYPE_MODE (TREE_TYPE (arg1))))
                    return pedantic_non_lvalue (fold_convert
-                     (type, fold (build (MIN_EXPR, comp_type,
-                                         (comp_code == LE_EXPR
-                                          ? comp_op0 : comp_op1),
-                                         (comp_code == LE_EXPR
-                                          ? comp_op1 : comp_op0)))));
+                     (type, fold (build2 (MIN_EXPR, comp_type,
+                                          (comp_code == LE_EXPR
+                                           ? comp_op0 : comp_op1),
+                                          (comp_code == LE_EXPR
+                                           ? comp_op1 : comp_op0)))));
                  break;
                case GE_EXPR:
                case GT_EXPR:
                  if (!HONOR_NANS (TYPE_MODE (TREE_TYPE (arg1))))
                    return pedantic_non_lvalue (fold_convert
-                     (type, fold (build (MAX_EXPR, comp_type,
-                                         (comp_code == GE_EXPR
-                                          ? comp_op0 : comp_op1),
-                                         (comp_code == GE_EXPR
-                                          ? comp_op1 : comp_op0)))));
+                     (type, fold (build2 (MAX_EXPR, comp_type,
+                                          (comp_code == GE_EXPR
+                                           ? comp_op0 : comp_op1),
+                                          (comp_code == GE_EXPR
+                                           ? comp_op1 : comp_op0)))));
                  break;
                default:
                  abort ();
@@ -8155,8 +8171,8 @@ fold (tree expr)
              case EQ_EXPR:
                /* We can replace A with C1 in this case.  */
                arg1 = fold_convert (type, TREE_OPERAND (arg0, 1));
-               return fold (build (code, type, TREE_OPERAND (t, 0), arg1,
-                                   TREE_OPERAND (t, 2)));
+               return fold (build3 (code, type, TREE_OPERAND (t, 0), arg1,
+                                    TREE_OPERAND (t, 2)));
 
              case LT_EXPR:
                /* If C1 is C2 + 1, this is min(A, C2).  */
@@ -8167,7 +8183,7 @@ fold (tree expr)
                                                     integer_one_node, 0),
                                        OEP_ONLY_CONST))
                  return pedantic_non_lvalue
-                   (fold (build (MIN_EXPR, type, arg1, arg2)));
+                   (fold (build2 (MIN_EXPR, type, arg1, arg2)));
                break;
 
              case LE_EXPR:
@@ -8179,7 +8195,7 @@ fold (tree expr)
                                                     integer_one_node, 0),
                                        OEP_ONLY_CONST))
                  return pedantic_non_lvalue
-                   (fold (build (MIN_EXPR, type, arg1, arg2)));
+                   (fold (build2 (MIN_EXPR, type, arg1, arg2)));
                break;
 
              case GT_EXPR:
@@ -8191,7 +8207,7 @@ fold (tree expr)
                                                     integer_one_node, 0),
                                        OEP_ONLY_CONST))
                  return pedantic_non_lvalue
-                   (fold (build (MAX_EXPR, type, arg1, arg2)));
+                   (fold (build2 (MAX_EXPR, type, arg1, arg2)));
                break;
 
              case GE_EXPR:
@@ -8203,7 +8219,7 @@ fold (tree expr)
                                                     integer_one_node, 0),
                                        OEP_ONLY_CONST))
                  return pedantic_non_lvalue
-                   (fold (build (MAX_EXPR, type, arg1, arg2)));
+                   (fold (build2 (MAX_EXPR, type, arg1, arg2)));
                break;
              case NE_EXPR:
                break;
@@ -8223,8 +8239,8 @@ fold (tree expr)
          tem = invert_truthvalue (arg0);
 
          if (TREE_CODE (tem) != TRUTH_NOT_EXPR)
-           return fold (build (code, type, tem,
-                        TREE_OPERAND (t, 2), TREE_OPERAND (t, 1)));
+           return fold (build3 (code, type, tem,
+                                TREE_OPERAND (t, 2), TREE_OPERAND (t, 1)));
        }
 
       /* Convert A ? 1 : 0 to simply A.  */
@@ -8262,8 +8278,8 @@ fold (tree expr)
       if (integer_zerop (TREE_OPERAND (t, 2))
          && truth_value_p (TREE_CODE (arg0))
          && truth_value_p (TREE_CODE (arg1)))
-       return pedantic_non_lvalue (fold (build (TRUTH_ANDIF_EXPR, type,
-                                                arg0, arg1)));
+       return pedantic_non_lvalue (fold (build2 (TRUTH_ANDIF_EXPR, type,
+                                                 arg0, arg1)));
 
       /* Convert A ? B : 1 into !A || B if A and B are truth values.  */
       if (integer_onep (TREE_OPERAND (t, 2))
@@ -8273,8 +8289,8 @@ fold (tree expr)
          /* Only perform transformation if ARG0 is easily inverted.  */
          tem = invert_truthvalue (arg0);
          if (TREE_CODE (tem) != TRUTH_NOT_EXPR)
-           return pedantic_non_lvalue (fold (build (TRUTH_ORIF_EXPR, type,
-                                                    tem, arg1)));
+           return pedantic_non_lvalue (fold (build2 (TRUTH_ORIF_EXPR, type,
+                                                     tem, arg1)));
        }
 
       return t;
@@ -8303,11 +8319,11 @@ fold (tree expr)
       else if (TREE_CODE (arg0) == COMPLEX_CST)
        return TREE_REALPART (arg0);
       else if (TREE_CODE (arg0) == PLUS_EXPR || TREE_CODE (arg0) == MINUS_EXPR)
-       return fold (build (TREE_CODE (arg0), type,
-                           fold (build1 (REALPART_EXPR, type,
-                                         TREE_OPERAND (arg0, 0))),
-                           fold (build1 (REALPART_EXPR,
-                                         type, TREE_OPERAND (arg0, 1)))));
+       return fold (build2 (TREE_CODE (arg0), type,
+                            fold (build1 (REALPART_EXPR, type,
+                                          TREE_OPERAND (arg0, 0))),
+                            fold (build1 (REALPART_EXPR, type,
+                                          TREE_OPERAND (arg0, 1)))));
       return t;
 
     case IMAGPART_EXPR:
@@ -8319,11 +8335,11 @@ fold (tree expr)
       else if (TREE_CODE (arg0) == COMPLEX_CST)
        return TREE_IMAGPART (arg0);
       else if (TREE_CODE (arg0) == PLUS_EXPR || TREE_CODE (arg0) == MINUS_EXPR)
-       return fold (build (TREE_CODE (arg0), type,
-                           fold (build1 (IMAGPART_EXPR, type,
-                                         TREE_OPERAND (arg0, 0))),
-                           fold (build1 (IMAGPART_EXPR, type,
-                                         TREE_OPERAND (arg0, 1)))));
+       return fold (build2 (TREE_CODE (arg0), type,
+                            fold (build1 (IMAGPART_EXPR, type,
+                                          TREE_OPERAND (arg0, 0))),
+                            fold (build1 (IMAGPART_EXPR, type,
+                                          TREE_OPERAND (arg0, 1)))));
       return t;
 
       /* Pull arithmetic ops out of the CLEANUP_POINT_EXPR where
@@ -8353,15 +8369,15 @@ fold (tree expr)
            if (TREE_CONSTANT (arg00)
                || ((code0 == TRUTH_ANDIF_EXPR || code0 == TRUTH_ORIF_EXPR)
                    && ! has_cleanups (arg00)))
-             return fold (build (code0, type, arg00,
-                                 fold (build1 (CLEANUP_POINT_EXPR,
-                                               TREE_TYPE (arg01), arg01))));
+             return fold (build2 (code0, type, arg00,
+                                  fold (build1 (CLEANUP_POINT_EXPR,
+                                                TREE_TYPE (arg01), arg01))));
 
            if (TREE_CONSTANT (arg01))
-             return fold (build (code0, type,
-                                 fold (build1 (CLEANUP_POINT_EXPR,
-                                               TREE_TYPE (arg00), arg00)),
-                                 arg01));
+             return fold (build2 (code0, type,
+                                  fold (build1 (CLEANUP_POINT_EXPR,
+                                                TREE_TYPE (arg00), arg00)),
+                                  arg01));
          }
 
        return t;
@@ -9218,10 +9234,10 @@ fold_relational_hi_lo (enum tree_code *code_p, const tree type, tree *op0_p,
              st0 = lang_hooks.types.signed_type (TREE_TYPE (op0));
              st1 = lang_hooks.types.signed_type (TREE_TYPE (op1));
 
-             exp = build (code == LE_EXPR ? GE_EXPR: LT_EXPR,
-                          type,
-                          convert (st0, op0),
-                          convert (st1, integer_zero_node));
+             exp = build2 (code == LE_EXPR ? GE_EXPR: LT_EXPR,
+                           type,
+                           convert (st0, op0),
+                           convert (st1, integer_zero_node));
 
              retval
                = nondestructive_fold_binary_to_constant (TREE_CODE (exp),
@@ -9308,8 +9324,9 @@ nondestructive_fold_binary_to_constant (enum tree_code code, tree type,
                      == ADDR_EXPR)))
          && TREE_CODE (TREE_OPERAND (op0, 1)) == INTEGER_CST)
        {
-          return build (PLUS_EXPR, type, TREE_OPERAND (op0, 0),
-                       const_binop (PLUS_EXPR, op1, TREE_OPERAND (op0, 1), 0));
+          return build2 (PLUS_EXPR, type, TREE_OPERAND (op0, 0),
+                        const_binop (PLUS_EXPR, op1,
+                                     TREE_OPERAND (op0, 1), 0));
        }
     case BIT_XOR_EXPR:
 
index 2d1513c..f8b6779 100644 (file)
@@ -1260,7 +1260,7 @@ array_type_nelts (tree type)
 
   return (integer_zerop (min)
          ? max
-         : fold (build (MINUS_EXPR, TREE_TYPE (max), max, min)));
+         : fold (build2 (MINUS_EXPR, TREE_TYPE (max), max, min)));
 }
 \f
 /* Return nonzero if arg is static -- a reference to an object in
@@ -1383,7 +1383,8 @@ save_expr (tree expr)
   if (contains_placeholder_p (inner))
     return t;
 
-  t = build (SAVE_EXPR, TREE_TYPE (expr), t, current_function_decl, NULL_TREE);
+  t = build3 (SAVE_EXPR, TREE_TYPE (expr), t, current_function_decl,
+             NULL_TREE);
 
   /* This expression might be placed ahead of a jump to ensure that the
      value was computed on both sides of the jump.  So make sure it isn't
@@ -1938,7 +1939,7 @@ substitute_in_expr (tree exp, tree f, tree r)
      if (op0 == TREE_OPERAND (exp, 0))
        return exp;
 
-     new = fold (build (code, TREE_TYPE (exp), op0, TREE_OPERAND (exp, 1)));
+     new = fold (build2 (code, TREE_TYPE (exp), op0, TREE_OPERAND (exp, 1)));
    }
   else
     switch (TREE_CODE_CLASS (code))
@@ -4458,8 +4459,8 @@ get_unwidened (tree op, tree for_type)
          && (for_type || ! DECL_BIT_FIELD (TREE_OPERAND (op, 1)))
          && (! uns || final_prec <= innerprec || unsignedp))
        {
-         win = build (COMPONENT_REF, type, TREE_OPERAND (op, 0),
-                      TREE_OPERAND (op, 1));
+         win = build2 (COMPONENT_REF, type, TREE_OPERAND (op, 0),
+                       TREE_OPERAND (op, 1));
          TREE_SIDE_EFFECTS (win) = TREE_SIDE_EFFECTS (op);
          TREE_THIS_VOLATILE (win) = TREE_THIS_VOLATILE (op);
        }
@@ -4547,8 +4548,8 @@ get_narrower (tree op, int *unsignedp_ptr)
        {
          if (first)
            uns = DECL_UNSIGNED (TREE_OPERAND (op, 1));
-         win = build (COMPONENT_REF, type, TREE_OPERAND (op, 0),
-                      TREE_OPERAND (op, 1));
+         win = build2 (COMPONENT_REF, type, TREE_OPERAND (op, 0),
+                       TREE_OPERAND (op, 1));
          TREE_SIDE_EFFECTS (win) = TREE_SIDE_EFFECTS (op);
          TREE_THIS_VOLATILE (win) = TREE_THIS_VOLATILE (op);
        }