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>> This was with both `-O2` and `-O3`, and also with `-march=native` Until very recently GCC didn't do vectorization at -O2 usless you told it to.
by phkahler 4y ago
>> This was with both `-O2` and `-O3`, and also with `-march=native`
Until very recently GCC didn't do vectorization at -O2 usless you told it to.
- inetknght 4y agoThat's true. I definitely omitted a bunch of other flags that were added including the flags to turn on vectorizations