+2006-06-16 Michael Matz <matz@suse.de>
+ Richard Guenther <rguenther@suse.de>
+
+ * fold-const.c (fold_truthop): Only return new tree node if
+ we canonicalized something.
+
2006-06-16 Richard Guenther <rguenther@suse.de>
* function.h (enum function_frequency): Move declaration
tree lntype, rntype, result;
int first_bit, end_bit;
int volatilep;
+ tree orig_lhs = lhs, orig_rhs = rhs;
+ enum tree_code orig_code = code;
/* Start by getting the comparison codes. Fail if anything is volatile.
If one operand is a BIT_AND_EXPR with the constant one, treat it as if
build_int_cst (TREE_TYPE (ll_arg), 0));
if (LOGICAL_OP_NON_SHORT_CIRCUIT)
- return build2 (code, truth_type, lhs, rhs);
+ {
+ if (code != orig_code || lhs != orig_lhs || rhs != orig_rhs)
+ return build2 (code, truth_type, lhs, rhs);
+ return NULL_TREE;
+ }
}
/* See if the comparisons can be merged. Then get all the parameters for