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| author | Rong Xu <xur@gcc.gnu.org> | 2014-10-07 04:06:12 +0000 |
|---|---|---|
| committer | Rong Xu <xur@gcc.gnu.org> | 2014-10-07 04:06:12 +0000 |
| commit | 0a7501658c43bba75e8130f250ae6445eab0ea9f (patch) | |
| tree | 3f660889ad3bf100d6e658c24a2f620b8f2c0414 /gcc/value-prof.c | |
| parent | afe0c5ee91ab504daf13f1c07ee5559b2ba5b6e4 (diff) | |
| download | gcc-0a7501658c43bba75e8130f250ae6445eab0ea9f.zip gcc-0a7501658c43bba75e8130f250ae6445eab0ea9f.tar.gz gcc-0a7501658c43bba75e8130f250ae6445eab0ea9f.tar.bz2 | |
params.def (PARAM_INDIR_CALL_TOPN_PROFILE): New param.
2014-10-06 Rong Xu <xur@google.com>
* gcc/params.def (PARAM_INDIR_CALL_TOPN_PROFILE): New param.
* gcc/tree-profile.c: (params.h): New include.
(init_ic_make_global_vars): Make __gcov_indirect_call_topn_callee
and __gcov_indirect_call_topn_counters for
indirect_call_topn_profile.
(gimple_init_edge_profiler): New decls for
__gcov_indirect_call_topn_profiler.
(gimple_gen_ic_profiler): Generate the correct profiler call.
(gimple_gen_ic_func_profiler): Fix format.
* gcc/value-prof.c (params.h): New include.
(dump_histogram_value): Hanlde indirect_call_topn counters.
(stream_in_histogram_value): Ditto.
(gimple_indirect_call_to_profile): Use indirect_call_topn
profile when PARAM_INDIR_CALL_TOPN_PROFILE is set.
(gimple_find_values_to_profile): Hanlde indirect_call_topn
counters.
* gcc/value-prof.h (enum hist_type): Histrogram type for
indirect_call_topn counters.
* gcc/profile.c (instrument_values): Instrument
indirect_call_topn counters.
From-SVN: r215963
Diffstat (limited to 'gcc/value-prof.c')
| -rw-r--r-- | gcc/value-prof.c | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/gcc/value-prof.c b/gcc/value-prof.c index e357967..37710ca 100644 --- a/gcc/value-prof.c +++ b/gcc/value-prof.c @@ -60,6 +60,7 @@ along with GCC; see the file COPYING3. If not see #include "builtins.h" #include "tree-nested.h" #include "hash-set.h" +#include "params.h" /* In this file value profile based optimizations are placed. Currently the following optimizations are implemented (for more detailed descriptions @@ -359,6 +360,22 @@ dump_histogram_value (FILE *dump_file, histogram_value hist) } fprintf (dump_file, ".\n"); break; + case HIST_TYPE_INDIR_CALL_TOPN: + fprintf (dump_file, "Indirect call topn "); + if (hist->hvalue.counters) + { + int i; + + fprintf (dump_file, "accu:%"PRId64, hist->hvalue.counters[0]); + for (i = 1; i < (GCOV_ICALL_TOPN_VAL << 2); i += 2) + { + fprintf (dump_file, " target:%"PRId64 " value:%"PRId64, + (int64_t) hist->hvalue.counters[i], + (int64_t) hist->hvalue.counters[i+1]); + } + } + fprintf (dump_file, ".\n"); + break; case HIST_TYPE_MAX: gcc_unreachable (); } @@ -432,9 +449,14 @@ stream_in_histogram_value (struct lto_input_block *ib, gimple stmt) break; case HIST_TYPE_IOR: - case HIST_TYPE_TIME_PROFILE: + case HIST_TYPE_TIME_PROFILE: ncounters = 1; break; + + case HIST_TYPE_INDIR_CALL_TOPN: + ncounters = (GCOV_ICALL_TOPN_VAL << 2) + 1; + break; + case HIST_TYPE_MAX: gcc_unreachable (); } @@ -1920,8 +1942,12 @@ gimple_indirect_call_to_profile (gimple stmt, histogram_values *values) values->reserve (3); - values->quick_push (gimple_alloc_histogram_value (cfun, HIST_TYPE_INDIR_CALL, - stmt, callee)); + values->quick_push (gimple_alloc_histogram_value ( + cfun, + PARAM_VALUE (PARAM_INDIR_CALL_TOPN_PROFILE) ? + HIST_TYPE_INDIR_CALL_TOPN : + HIST_TYPE_INDIR_CALL, + stmt, callee)); return; } @@ -2011,9 +2037,9 @@ gimple_find_values_to_profile (histogram_values *values) hist->n_counters = 3; break; - case HIST_TYPE_TIME_PROFILE: - hist->n_counters = 1; - break; + case HIST_TYPE_TIME_PROFILE: + hist->n_counters = 1; + break; case HIST_TYPE_AVERAGE: hist->n_counters = 2; @@ -2023,6 +2049,10 @@ gimple_find_values_to_profile (histogram_values *values) hist->n_counters = 1; break; + case HIST_TYPE_INDIR_CALL_TOPN: + hist->n_counters = GCOV_ICALL_TOPN_NCOUNTS; + break; + default: gcc_unreachable (); } |