Unaligned data access optimzed away by isjerl

Using the _mm_loadu_si128 compiler intrinsic with /O2, the compiler converts the unaligned load into an aligned load, causing a program to crash.

Example code:
-----------------------------
#include <intrin.h>
int main()
{
    int data[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11};
    __m128i temp1, temp2, prod;
    temp1 = _mm_loadu_si128((__m128i *) &data[0]);
    temp2 = _mm_loadu_si128((__m128i *) &data[5]);
    prod = _mm_mul_epi32(temp1, temp2);
    return _mm_extract_epi32(prod, 0);
}