PR gcov-profile/30650
	* value-prof.c (stringop_block_profile): Fix handling of size counter;
	do not divide by zero for never executed counters.
	(tree_find_values_to_profile): Fix counters.
	* gcov-ui.h (GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): Fix comments.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121554 138bc75d-0d04-0410-961f-82ee72b054a4