diff options
| author | M Joonas Pihlaja <jpihlaja@cc.helsinki.fi> | 2008-09-25 00:17:57 +0300 |
|---|---|---|
| committer | M Joonas Pihlaja <jpihlaja@cc.helsinki.fi> | 2008-09-25 00:17:57 +0300 |
| commit | 55e06745a639d86921e48ff56aa0c375a46d6421 (patch) | |
| tree | 1dbe9b229c50211c199b0d64459a7b17918800dd /perf/cairo-perf-posix.c | |
| parent | 2fb59b3ebd885e109160326825325be3907ed48e (diff) | |
[perf-suite] Explicitly read the results of rdtsc from edx:eax.
The =A format used to read a 64 bit result from rdtsc works on x86,
but not on x86-64.
Diffstat (limited to 'perf/cairo-perf-posix.c')
| -rw-r--r-- | perf/cairo-perf-posix.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/perf/cairo-perf-posix.c b/perf/cairo-perf-posix.c index 8bf78cec..8bc4e092 100644 --- a/perf/cairo-perf-posix.c +++ b/perf/cairo-perf-posix.c @@ -70,9 +70,9 @@ static inline cairo_perf_ticks_t oil_profile_stamp_rdtsc (void) { - uint64_t ts; - __asm__ __volatile__("rdtsc\n" : "=A" (ts)); - return ts; + unsigned a, d; + __asm__ __volatile__("rdtsc" : "=a" (a), "=d" (d)); + return ((uint64_t)a) | (((uint64_t)d) << 32); } #define OIL_STAMP oil_profile_stamp_rdtsc #endif |