diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/power4/hp-timing.h')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/power4/hp-timing.h | 18 |
1 files changed, 2 insertions, 16 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/hp-timing.h b/sysdeps/powerpc/powerpc32/power4/hp-timing.h index 2124e02081..cd296c52e2 100644 --- a/sysdeps/powerpc/powerpc32/power4/hp-timing.h +++ b/sysdeps/powerpc/powerpc32/power4/hp-timing.h @@ -51,13 +51,8 @@ - HP_TIMING_DIFF: compute difference between two times and store it in a third. Source and destination might overlap. - - HP_TIMING_ACCUM: add time difference to another variable. This might - be a bit more complicated to implement for some platforms as the - operation should be thread-safe and 64bit arithmetic on 32bit platforms - is not. - - - HP_TIMING_ACCUM_NT: this is the variant for situations where we know - there are no threads involved. + - HP_TIMING_ACCUM_NT: add time difference to another variable, without + being thread-safe. - HP_TIMING_PRINT: write decimal representation of the timing value into the given string. This operation need not be inline even though @@ -117,15 +112,6 @@ typedef unsigned long long int hp_timing_t; /* It's simple arithmetic in 64-bit. */ #define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) -/* We need to insure that this add is atomic in threaded environments. We use - __arch_atomic_exchange_and_add_64 from atomic.h to get thread safety. */ -#define HP_TIMING_ACCUM(Sum, Diff) \ - do { \ - hp_timing_t __diff = (Diff) - GLRO(dl_hp_timing_overhead); \ - __arch_atomic_exchange_and_add_64 (&(Sum), __diff); \ - } while (0) - -/* No threads, no extra work. */ #define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff) /* Print the time value. */ |