else if (code == CONSTRUCTOR)
abort ();
- op0 = substitute_in_expr (TREE_OPERAND (exp, 0), f, r);
- op1 = substitute_in_expr (TREE_OPERAND (exp, 1), f, r);
+ op0 = TREE_OPERAND (exp, 0);
+ op1 = TREE_OPERAND (exp, 1);
+ if (contains_placeholder_p (op0))
+ op0 = substitute_in_expr (op0, f, r);
+ if (contains_placeholder_p (op1))
+ op1 = substitute_in_expr (op1, f, r);
+
if (op0 == TREE_OPERAND (exp, 0) && op1 == TREE_OPERAND (exp, 1))
return exp;
else if (code != COND_EXPR)
abort ();
- op0 = substitute_in_expr (TREE_OPERAND (exp, 0), f, r);
- op1 = substitute_in_expr (TREE_OPERAND (exp, 1), f, r);
- op2 = substitute_in_expr (TREE_OPERAND (exp, 2), f, r);
+ op0 = TREE_OPERAND (exp, 0);
+ op1 = TREE_OPERAND (exp, 1);
+ op2 = TREE_OPERAND (exp, 2);
+
+ if (contains_placeholder_p (op0))
+ op0 = substitute_in_expr (op0, f, r);
+ if (contains_placeholder_p (op1))
+ op1 = substitute_in_expr (op1, f, r);
+ if (contains_placeholder_p (op2))
+ op2 = substitute_in_expr (op2, f, r);
+
if (op0 == TREE_OPERAND (exp, 0) && op1 == TREE_OPERAND (exp, 1)
&& op2 == TREE_OPERAND (exp, 2))
return exp;