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tree.c (substitute_in_expr, case 'e'): Only make recursive call on an operand if it has a PLACEHOLDER_EXPR. 

* tree.c (substitute_in_expr, case 'e'): Only make recursive call
	on an operand if it has a PLACEHOLDER_EXPR.

From-SVN: r64595
This commit is contained in:
Richard Kenner 2003-03-19 15:20:57 -05:00
parent f8a855dcaf
commit 784fb70e84
1 changed files with 18 additions and 5 deletions
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23
gcc/tree.c
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@ -1890,8 +1890,13 @@ substitute_in_expr (exp, f, r)
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;
@ -1917,9 +1922,17 @@ substitute_in_expr (exp, f, r)
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;