diff options
Diffstat (limited to 'third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc')
-rw-r--r-- | third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc b/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc index f1e7bbef84..4d352bd110 100644 --- a/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc +++ b/third_party/abseil-cpp/absl/base/internal/unscaledcycleclock.cc @@ -87,6 +87,10 @@ int64_t UnscaledCycleClock::Now() { double UnscaledCycleClock::Frequency() { #ifdef __GLIBC__ return __ppc_get_timebase_freq(); +#elif defined(_AIX) + // This is the same constant value as returned by + // __ppc_get_timebase_freq(). + return static_cast<double>(512000000); #elif defined(__FreeBSD__) static once_flag init_timebase_frequency_once; static double timebase_frequency = 0.0; @@ -119,13 +123,23 @@ double UnscaledCycleClock::Frequency() { return aarch64_timer_frequency; } +#elif defined(__riscv) + +int64_t UnscaledCycleClock::Now() { + int64_t virtual_timer_value; + asm volatile("rdcycle %0" : "=r"(virtual_timer_value)); + return virtual_timer_value; +} + +double UnscaledCycleClock::Frequency() { + return base_internal::NominalCPUFrequency(); +} + #elif defined(_M_IX86) || defined(_M_X64) #pragma intrinsic(__rdtsc) -int64_t UnscaledCycleClock::Now() { - return __rdtsc(); -} +int64_t UnscaledCycleClock::Now() { return __rdtsc(); } double UnscaledCycleClock::Frequency() { return base_internal::NominalCPUFrequency(); |