diff options
Diffstat (limited to 'gcc/value-prof.c')
| -rw-r--r-- | gcc/value-prof.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/value-prof.c b/gcc/value-prof.c index 5c06c159683..f436b4a3efd 100644 --- a/gcc/value-prof.c +++ b/gcc/value-prof.c @@ -40,6 +40,8 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #include "coverage.h" #include "tree.h" #include "gcov-io.h" +#include "timevar.h" +#include "tree-pass.h" static struct value_prof_hooks *value_prof_hooks; @@ -1798,3 +1800,40 @@ value_profile_transformations (void) VEC_free (histogram_value, heap, static_values); return retval; } + +static bool +gate_handle_value_profile_transformations (void) +{ + return flag_branch_probabilities + && flag_profile_values + && !flag_tree_based_profiling + && (flag_value_profile_transformations + || flag_speculative_prefetching); +} + + +/* Do optimizations based on expression value profiles. */ +static void +rest_of_handle_value_profile_transformations (void) +{ + if (value_profile_transformations ()) + cleanup_cfg (CLEANUP_EXPENSIVE); +} + +struct tree_opt_pass pass_value_profile_transformations = +{ + "vpt", /* name */ + gate_handle_value_profile_transformations, /* gate */ + rest_of_handle_value_profile_transformations, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + TV_VPT, /* tv_id */ + 0, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + TODO_dump_func, /* todo_flags_finish */ + 'V' /* letter */ +}; + |
