pcsx2/common/include/x86emitter/x86_intrin.h

88 lines
2.6 KiB
C

/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2016 PCSX2 Dev Team
*
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with PCSX2.
* If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
// Because nobody can't agree on a single name !
#if defined(__GNUC__)
// Yes there are several files for the same features!
// x86intrin.h which is the general include provided by the compiler
// x86_intrin.h, this file, which is compatibility layer for severals intrinsics
#include "x86intrin.h"
#else
#include "Intrin.h"
#endif
// CPU information support
#if defined(_WIN32)
#define cpuid __cpuid
#define cpuidex __cpuidex
#define xgetbv _xgetbv
#else
#include <cpuid.h>
static __inline__ __attribute__((always_inline)) void cpuidex(int CPUInfo[], const int InfoType, const int count)
{
__cpuid_count(InfoType, count, CPUInfo[0], CPUInfo[1], CPUInfo[2], CPUInfo[3]);
}
static __inline__ __attribute__((always_inline)) void cpuid(int CPUInfo[], const int InfoType)
{
__cpuid(InfoType, CPUInfo[0], CPUInfo[1], CPUInfo[2], CPUInfo[3]);
}
#if defined(__clang__) || __GNUC__ < 8 || (__GNUC__ == 8 && __GNUC_MINOR__ < 2)
// _xgetbv on gcc 8.1 is broken (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85684).
// It also isn't present on clang and earlier versions of gcc.
static __inline__ __attribute__((always_inline)) unsigned long long xgetbv(unsigned int index)
{
unsigned int eax, edx;
__asm__ __volatile__("xgetbv"
: "=a"(eax), "=d"(edx)
: "c"(index));
return ((unsigned long long)edx << 32) | eax;
}
#else
#define xgetbv _xgetbv
#endif
#endif
// Rotate instruction
#if defined(__clang__)
// Seriously what is so complicated to provided this bunch of intrinsics in clangs.
static unsigned int _rotr(unsigned int x, int s)
{
return (x >> s) | (x << (32 - s));
}
static unsigned int _rotl(unsigned int x, int s)
{
return (x << s) | (x >> (32 - s));
}
#endif
// Not correctly defined in GCC4.8 and below ! (dunno for VS)
#ifndef _MM_MK_INSERTPS_NDX
#define _MM_MK_INSERTPS_NDX(srcField, dstField, zeroMask) (((srcField) << 6) | ((dstField) << 4) | (zeroMask))
#endif