Lots of code calls dump_gimple_stmt then print a newline, however dump_gimple_stmt will print a newline itself. This makes the vectorizer debug file messy. I think the confusion is because dump_generic_expr does NOT print a newline. This patch removes all prints of a newline direcly after a dump_gimple_stmt.
Tested by examining a selection of vect dump files. gcc/ \* tree-vect-data-refs.c (vect_analyze_data_refs): Remove debug newline. \* tree-vect-loop-manip.c (slpeel_make_loop_iterate_ntimes): likewise. (vect_can_advance_ivs_p): likewise. (vect_update_ivs_after_vectorizer): likewise. \* tree-vect-loop.c (vect_determine_vectorization_factor): likewise. (vect_analyze_scalar_cycles_1): likewise. (vect_analyze_loop_operations): likewise. (report_vect_op): likewise. (vect_is_slp_reduction): likewise. (vect_is_simple_reduction): likewise. (get_initial_def_for_induction): likewise. (vect_transform_loop): likewise. \* tree-vect-patterns.c (vect_recog_dot_prod_pattern): likewise. (vect_recog_sad_pattern): likewise. (vect_recog_widen_sum_pattern): likewise. (vect_recog_widening_pattern): likewise. (vect_recog_divmod_pattern): likewise. \* tree-vect-slp.c (vect-build-slp_tree_1): likewise. (vect_analyze_slp_instance): likewise. (vect_transform_slp_perm_load): likewise. (vect_schedule_slp_instance): likewise. Alan
removenewlines.patch
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