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/*
* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// #include <unistd.h>
// const char service_interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
#if defined(TARGET_LINUX_X8664) || defined(TARGET_OSX_X8664)
#include "cpuid8664.h"
#endif
#ifndef CPUIDX8664
#define CPUIDX8664(a) __cpuid_##a
#endif // #ifndef CPUIDX8664
static int CPUIDX8664(is_avx512)();
static int CPUIDX8664(is_avx512vl)();
static int CPUIDX8664(is_avx512f)();
static int CPUIDX8664(is_avx2)();
static int CPUIDX8664(is_avx)();
static int CPUIDX8664(is_intel)();
static int CPUIDX8664(is_amd)();
static int CPUIDX8664(is_fma4)();
static int CPUIDX8664(is_sse4a)();
static int CPUIDX8664(is_sse41)();
extern const char *get_arch();
const char *get_arch() {
char *ret = (char *) malloc(sizeof(char) * 10);
strcpy(ret, "unknown");
if (CPUIDX8664(is_avx512vl)() == 1) {
strcpy(ret, "avx512");
} else if (CPUIDX8664(is_avx512f)() == 1) {
strcpy(ret, "avx512knl");
} else if (CPUIDX8664(is_avx2)() == 1) {
strcpy(ret, "avx2");
} else if (CPUIDX8664(is_avx)() == 1) {
if (CPUIDX8664(is_intel)() == 1) {
strcpy(ret, "avx");
}
if (CPUIDX8664(is_amd)() == 1) {
if (CPUIDX8664(is_fma4)() == 1) {
strcpy(ret, "avxfma4");
} else {
strcpy(ret, "sse4");
}
}
} else {
if ((CPUIDX8664(is_sse4a)() == 1) || (CPUIDX8664(is_sse41)() == 1)) {
strcpy(ret, "sse4");
} else {
strcpy(ret, "em64t");
}
}
return ret;
}
// void lib_entry(int argc, char **argv) {
// printf("Instruction Set: %s: ", get_arch());
// _exit(0);
// }
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