gcc/clang support for avx

I have tracked a bug in my code to a piece of code that could be simplified to

Code:

---


/*
  gcc/clang -std=c++11 -mavx -o file

*/

 #include <string>
 #include <vector>
 #include <list>
 
 extern "C"
 {
    #include <pmmintrin.h>
    #include <immintrin.h>
 }
 
typedef unsigned long u64;
typedef __m256i u256;
 
 int main( int main, char *argv[])
 {
    std::vector<u256> stack(10);
    std::vector<u64> cstack(10 * 1288);
 }

---

This piece of code is seg faulting while initializing the vector(gcc/clang++).Is this behavior expected?

I believe you need to have the memory allocated aligned to 32 bytes.

For more information:

VMOVAPD

EDIT:

Hmm, I am not sure anymore. Does not hurt to try?

Can you use deque instead of vector? My guess is it's running into limits on the size of continuous memory.

I sorta gave up on this, may be I will look into it later with the time :-)