gimple.c (canonicalize_cond_expr_cond): (bool)x is not the same as x != 0.

gimple.c (canonicalize_cond_expr_cond): (bool)x is not the same as x != 0.

2011-06-16  Richard Guenther  <rguenther@suse.de>

	* gimple.c (canonicalize_cond_expr_cond): (bool)x is not
	the same as x != 0.
	* fold-const.c (fold_binary_loc): Do not fold X & 1 != 0 to
	(bool) X & 1.
	* ipa-prop.c (ipa_analyze_indirect_call_uses): Also allow
	equality compares against zero for the lower bit.

From-SVN: r175096