diff options
Diffstat (limited to 'indra/llcommon/llfasttimer.h')
| -rw-r--r-- | indra/llcommon/llfasttimer.h | 85 |
1 files changed, 60 insertions, 25 deletions
diff --git a/indra/llcommon/llfasttimer.h b/indra/llcommon/llfasttimer.h index 5058a2e772..cd76bfe709 100644 --- a/indra/llcommon/llfasttimer.h +++ b/indra/llcommon/llfasttimer.h @@ -39,46 +39,81 @@ #define TIME_FAST_TIMERS 0 #if LL_WINDOWS +#define LL_INLINE __forceinline + +// +// NOTE: put back in when we aren't using platform sdk anymore +// // because MS has different signatures for these functions in winnt.h // need to rename them to avoid conflicts -#define _interlockedbittestandset _renamed_interlockedbittestandset -#define _interlockedbittestandreset _renamed_interlockedbittestandreset -#include <intrin.h> -#undef _interlockedbittestandset -#undef _interlockedbittestandreset +//#define _interlockedbittestandset _renamed_interlockedbittestandset +//#define _interlockedbittestandreset _renamed_interlockedbittestandreset +//#include <intrin.h> +//#undef _interlockedbittestandset +//#undef _interlockedbittestandreset + +//inline U32 get_cpu_clock_count_32() +//{ +// U64 time_stamp = __rdtsc(); +// return (U32)(time_stamp >> 8); +//} +// +//// return full timer value, *not* shifted by 8 bits +//inline U64 get_cpu_clock_count_64() +//{ +// return __rdtsc(); +//} -#define LL_INLINE __forceinline // shift off lower 8 bits for lower resolution but longer term timing // on 1Ghz machine, a 32-bit word will hold ~1000 seconds of timing inline U32 get_cpu_clock_count_32() { - U64 time_stamp = __rdtsc(); - return (U32)(time_stamp >> 8); + U32 ret_val; + __asm + { + _emit 0x0f + _emit 0x31 + shr eax,8 + shl edx,24 + or eax, edx + mov dword ptr [ret_val], eax + } + return ret_val; } // return full timer value, *not* shifted by 8 bits inline U64 get_cpu_clock_count_64() { - return __rdtsc(); + U64 ret_val; + __asm + { + _emit 0x0f + _emit 0x31 + mov eax,eax + mov edx,edx + mov dword ptr [ret_val+4], edx + mov dword ptr [ret_val], eax + } + return ret_val; } #else #define LL_INLINE -#endif // LL_WINDOWS - -#if (LL_LINUX || LL_SOLARIS || LL_DARWIN) && (defined(__i386__) || defined(__amd64__)) -inline U32 get_cpu_clock_count_32() -{ - U64 x; - __asm__ volatile (".byte 0x0f, 0x31": "=A"(x)); - return (U32)x >> 8; -} - -inline U32 get_cpu_clock_count_64() -{ - U64 x; - __asm__ volatile (".byte 0x0f, 0x31": "=A"(x)); - return x >> 8; -} +#endif +
+#if (LL_LINUX || LL_SOLARIS || LL_DARWIN) && (defined(__i386__) || defined(__amd64__))
+inline U32 get_cpu_clock_count_32()
+{
+ U64 x;
+ __asm__ volatile (".byte 0x0f, 0x31": "=A"(x));
+ return (U32)x >> 8;
+}
+
+inline U32 get_cpu_clock_count_64()
+{
+ U64 x;
+ __asm__ volatile (".byte 0x0f, 0x31": "=A"(x));
+ return x >> 8;
+}
#endif #if ( LL_DARWIN && !(defined(__i386__) || defined(__amd64__))) || (LL_SOLARIS && defined(__sparc__)) |