Dimitry Andric: > > See https://github.com/llvm/llvm-project/commit/e5147f82e1cb > > > > - Instead of __builtin_ia32_pabsd128 maybe use _mm_abs_epi32 > > - Instead of __builtin_ia32_pabsd256 maybe use _mm256_abs_epi32 > > I'm wondering why this rather fragile method is chosen? If you want to > know whether SSE is supported, you check for __SSE__, and similarly > __SSE2__, __AVX__ and a bunch of others. That is also portable to gcc.
__AVX__, for instance, is not defined unless you compile with -mavx, which also allows the compiler to issue AVX instructions during normal code generation. -- Christian "naddy" Weisgerber na...@mips.inka.de
