// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
// SPDX-License-Identifier: MIT
#pragma once
// Include for __rdtsc
#if defined(JPH_PLATFORM_WINDOWS)
#include <intrin.h>
#elif defined(JPH_CPU_X86) && defined(JPH_COMPILER_GCC)
#include <x86intrin.h>
#elif defined(JPH_CPU_E2K)
#include <x86intrin.h>
#elif defined(JPH_CPU_LOONGARCH)
#include <larchintrin.h>
#endif
JPH_NAMESPACE_BEGIN
#if defined(JPH_PLATFORM_WINDOWS_UWP) || (defined(JPH_PLATFORM_WINDOWS) && defined(JPH_CPU_ARM))
/// Functionality to get the processors cycle counter
uint64 GetProcessorTickCount(); // Not inline to avoid having to include Windows.h
#else
/// Functionality to get the processors cycle counter
JPH_INLINE uint64 GetProcessorTickCount()
{
#if defined(JPH_PLATFORM_BLUE)
return JPH_PLATFORM_BLUE_GET_TICKS();
#elif defined(JPH_CPU_X86)
return __rdtsc();
#elif defined(JPH_CPU_E2K)
return __rdtsc();
#elif defined(JPH_CPU_ARM) && defined(JPH_USE_NEON)
uint64 val;
asm volatile("mrs %0, cntvct_el0" : "=r" (val));
return val;
#elif defined(JPH_CPU_LOONGARCH)
#if JPH_CPU_ARCH_BITS == 64
__drdtime_t t = __rdtime_d();
return t.dvalue;
#else
__rdtime_t h = __rdtimeh_w();
__rdtime_t l = __rdtimel_w();
return ((uint64)h.value << 32) + l.value;
#endif
#elif defined(JPH_CPU_ARM) || defined(JPH_CPU_RISCV) || defined(JPH_CPU_WASM) || defined(JPH_CPU_PPC)
return 0; // Not supported
#else
#error Undefined
#endif
}
#endif // JPH_PLATFORM_WINDOWS_UWP || (JPH_PLATFORM_WINDOWS && JPH_CPU_ARM)
JPH_NAMESPACE_END