opts.c (common_handle_option): Do not set flag_value_profile_transformations for -fprofile-generate.

	* opts.c (common_handle_option): Do not set 
	flag_value_profile_transformations for -fprofile-generate.
	* profile.c (instrument_values): Use COUNTER_FOR_HIST_TYPE.
	(BB_TO_GCOV_INDEX): Remove.
	(output_location): Don't use it.
	(branch_prob): Likewise.  Don't fiddle with the index of
	ENTRY_BLOCK_PTR and EXIT_BLOCK_PTR.  Use clear_aux_for_blocks.
	(find_spanning_tree):
	* gcov.c (struct function_info): Document that blocks 0 and 1
	are the entry resp. exit blocks in gcov, too, like in GCC itself.
	(solve_flow_graph): Use ENTRY_BLOCK and EXIT_BLOCK for special
	blocks identification.
	(output_lines): Likewise.
	* value-prof.c (gimple_value_profile_transformations): Do not
	test flag_value_profile_transformations again.
	(gimple_ic_transform): Take a gimple_stmt_iterator like all other
	transformation functions.
	(gimple_values_to_profile):
	Don't test flag_value_profile_transformations
	* tree-profile.c (tree_profiling): Assert that the cgraph is in
	the CGRAPH_STATE_IPA_SSA state.
	Do not set, or look at, after_tree_profile.
	* function.h (struct function): Remove after_tree_profile bit.
	* omp-low.c (expand_omp_taskreg): Don't set after_tree_profile.
	* tree-inline.c (initialize_cfun): Don't copy it.
	* lto-streamer-out.c (output_struct_function_base): Don't stream it.
	* lto-streamer-in.c (input_struct_function_base): Likewise.

From-SVN: r189778