Hi,
this is and TBAA stat for building cc1 with -flto-partition=none.
From:
Alias oracle query stats:
refs_may_alias_p: 46099243 disambiguations, 55677716 queries
ref_maybe_used_by_call_p: 124351 disambiguations, 46883813 queries
call_may_clobber_ref_p: 12673 disambiguations, 17133 queries
nonoverlapping_component_refs_p: 0 disambiguations, 3803 queries
nonoverlapping_refs_since_match_p: 19034 disambiguations, 46849 must
overlaps, 67934 queries
aliasing_component_refs_p: 76737 disambiguations, 300234 queries
TBAA oracle: 15816119 disambiguations 39888339 queries
12364426 are in alias set 0
7655945 queries asked about the same object
178 queries asked about the same alias set
0 access volatile
2963837 are dependent in the DAG
1087834 are aritificially in conflict with void *
PTA query stats:
pt_solution_includes: 904096 disambiguations, 9062937 queries
pt_solutions_intersect: 853990 disambiguations, 10098128 queries
to:
Alias oracle query stats:
refs_may_alias_p: 48168904 disambiguations, 57845554 queries
ref_maybe_used_by_call_p: 124062 disambiguations, 48953042 queries
call_may_clobber_ref_p: 12658 disambiguations, 17137 queries
nonoverlapping_component_refs_p: 0 disambiguations, 3312 queries
nonoverlapping_refs_since_match_p: 18997 disambiguations, 45778 must
overlaps, 67109 queries
aliasing_component_refs_p: 58756 disambiguations, 296126 queries
TBAA oracle: 16036749 disambiguations 40132907 queries
12352609 are in alias set 0
7697466 queries asked about the same object
178 queries asked about the same alias set
0 access volatile
2964615 are dependent in the DAG
1081290 are aritificially in conflict with void *
PTA query stats:
pt_solution_includes: 826579 disambiguations, 8987330 queries
pt_solutions_intersect: 841758 disambiguations, 10078495 queries
So aliasing_component_refs_p drops from 25% disambiguation rate to 19% which
is quite noticeable. I will run SPEC benchmarks.
Firefox is not very releavnt here since it is -fno-strict-aliasing.
Honza
