[Bug target/47754] [missed optimization] AVX allows unaligned memory operands but GCC uses unaligned load and register operand

linux at carewolf dot com gcc-bugzilla@gcc.gnu.org
Sat Dec 10 11:22:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47754

--- Comment #8 from Allan Jensen <linux at carewolf dot com> ---
Note this happens with -mavx2, but not with -march=haswell. It appears the
tuning is a bit too pessimistic when avx2 is enabled on generic x64.


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