I was trying to initialise a C++ object with an SIMD member with a new keyword. Here is my code:
#include <immintrin.h>
class simd_obj {
protected:
// float a;
__m256 a;
public:
simd_obj(float f) {
// a = f;
a = _mm256_set1_ps(f);
}
};
int main() {
simd_obj* a = new simd_obj(1.3);
return 0;
}
It can be compiled with g++ 5.3.0 with -mavx flag in windows 7 (via mingw). However, when it runs, it crashes.
When I changed the type of a into float and using a simple assignment (see the commented lines), it runs well, as expected.
Also, when I change the initialisation to simd_obj a(1.3), it works, even with __m256 type of a.
Do you have any idea why the code above does not work?
