diff options
Diffstat (limited to 'absl/base/internal')
| -rw-r--r-- | absl/base/internal/unscaledcycleclock.cc | 12 | ||||
| -rw-r--r-- | absl/base/internal/unscaledcycleclock.h | 8 |
2 files changed, 16 insertions, 4 deletions
diff --git a/absl/base/internal/unscaledcycleclock.cc b/absl/base/internal/unscaledcycleclock.cc index 1545288..fc07e30 100644 --- a/absl/base/internal/unscaledcycleclock.cc +++ b/absl/base/internal/unscaledcycleclock.cc @@ -119,6 +119,18 @@ 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) diff --git a/absl/base/internal/unscaledcycleclock.h b/absl/base/internal/unscaledcycleclock.h index 82f2c87..681ff8f 100644 --- a/absl/base/internal/unscaledcycleclock.h +++ b/absl/base/internal/unscaledcycleclock.h @@ -46,8 +46,8 @@ // The following platforms have an implementation of a hardware counter. #if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \ - defined(__powerpc__) || defined(__ppc__) || \ - defined(_M_IX86) || defined(_M_X64) + defined(__powerpc__) || defined(__ppc__) || defined(__riscv) || \ + defined(_M_IX86) || defined(_M_X64) #define ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION 1 #else #define ABSL_HAVE_UNSCALED_CYCLECLOCK_IMPLEMENTATION 0 @@ -80,8 +80,8 @@ // This macro can be used to test if UnscaledCycleClock::Frequency() // is NominalCPUFrequency() on a particular platform. -#if (defined(__i386__) || defined(__x86_64__) || \ - defined(_M_IX86) || defined(_M_X64)) +#if (defined(__i386__) || defined(__x86_64__) || defined(__riscv) || \ + defined(_M_IX86) || defined(_M_X64)) #define ABSL_INTERNAL_UNSCALED_CYCLECLOCK_FREQUENCY_IS_CPU_FREQUENCY #endif |