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/*
* Copyright 2002-2019 Intel Corporation.
*
* This software is provided to you as Sample Source Code as defined in the accompanying
* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
* section 1.L.
*
* This software and the related documents are provided as is, with no express or implied
* warranties, other than those that are expressly stated in the License.
*/
#include <iostream>
#include <cstdlib>
#include <signal.h>
static void HandleSigill(int);
extern "C" void LoadYmm0(const unsigned char *);
int main()
{
// Create a SIGILL handler in case this processor does not support
// AVX instructions.
//
struct sigaction act;
act.sa_handler = HandleSigill;
act.sa_flags = 0;
sigemptyset(&act.sa_mask);
sigaction(SIGILL, &act, 0);
unsigned char ymmVal[32];
for (unsigned i = 0; i < sizeof(ymmVal); i++)
ymmVal[i] = static_cast<unsigned char>(i+1);
// If the processor supports AVX, the debugger stops at a breakpoint
// immediately after loading YMM0. Otherwise, the debugger stops at
// a breakpoint in HandleSigill().
//
LoadYmm0(ymmVal);
return 0;
}
static void HandleSigill(int sig)
{
std::cout << "Processor does not support AVX" << std::endl;
std::exit(0);
}