AVX log intrinsics (_mm256_log_ps) missing in g++-4.8?

Question

I am trying to utilise some AVX intrinsics in my code and have run into a brick wall with the logarithm intrinsics.

Using the Intel Intrinsics Guide v3.0.1 for Linux

Answer 1

I've posted my implementation of _mm256_log_pd(__m256d) here: https://stackoverflow.com/a/45898937/1915854 . With some effort you should be able to extend it to 8 packed floats instead of 4 doubles, though you need to revise the bit manipulations. And some parts are easies because you don't need to repack odd-/even-numbered 32-bit components of __m256i into __m128i.