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From: Ondrej Kubanek <kubaneko@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/kubaneko/heads/histogram)] temporary log fix Date: Tue, 22 Nov 2022 13:13:50 +0000 (GMT) [thread overview] Message-ID: <20221122131350.78D0C3858C2B@sourceware.org> (raw) https://gcc.gnu.org/g:2233c2e840936a801cee3c9c8c613edf39c52fdf commit 2233c2e840936a801cee3c9c8c613edf39c52fdf Author: kubaneko <kubanek0ondrej@gmail.com> Date: Tue Nov 1 19:36:38 2022 +0000 temporary log fix Diff: --- libgcc/libgcov-profiler.c | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/libgcc/libgcov-profiler.c b/libgcc/libgcov-profiler.c index 8088f3d647a..b5912f53917 100644 --- a/libgcc/libgcov-profiler.c +++ b/libgcc/libgcov-profiler.c @@ -53,7 +53,6 @@ floor_log2 (gcov_type x) return 63 - clz_hwi (x); } - void __gcov_histogram_profiler (gcov_type *counters, gcov_type value) { @@ -64,7 +63,6 @@ __gcov_histogram_profiler (gcov_type *counters, gcov_type value) int pow2=floor_log2(value); counters[pow2+5]++; } - printf("\n %d %d \n", floor_log2(value), value); } #endif @@ -77,6 +75,28 @@ __gcov_histogram_profiler (gcov_type *counters, gcov_type value) * otherwise we take its logarithm and increment corresponding counter */ +/* For convenience, define 0 -> word_size. */ +static inline int +clz_hwi2 (gcov_type x) +{ + if (x == 0) + return 64; +# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG + return __builtin_clzl (x); +# elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG + return __builtin_clzll (x); +# else + return __builtin_clz (x); +# endif +} + +static inline int +floor_log2_2 (gcov_type x) +{ + return 63 - clz_hwi2 (x); +} + + void __gcov_histogram_profiler_atomic (gcov_type *counters, gcov_type value) { @@ -84,7 +104,7 @@ __gcov_histogram_profiler_atomic (gcov_type *counters, gcov_type value) __atomic_fetch_add (&counters[value], 1, __ATOMIC_RELAXED); }else{ gcc_assert(value>0); - int pow2=floor_log2(value); + int pow2=floor_log2_2(value); __atomic_fetch_add (&counters[pow2+5], 1, __ATOMIC_RELAXED); } }
next reply other threads:[~2022-11-22 13:13 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-11-22 13:13 Ondrej Kubanek [this message] 2023-02-16 16:28 Ondrej Kubanek 2023-02-23 23:22 Ondrej Kubanek
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