PR c/48305
	* fold-const.c (fold_binary_loc) <case EQ_EXPR, NE_EXPR>: Make sure
	arg10/arg11 in (X ^ Y) == (Z ^ W) are always fold converted to
	matching arg00/arg01 types.

	* gcc.c-torture/compile/pr48305.c: New test.

From-SVN: r171723