A bug story: data alignment on x86

Re:A bug story: data alignment on x86 by acqq on Monday November 07, 2016 @03:21PM (#12894670)

Thanks! Are you able to post how the generated asm of their innermost loop looks like with SSE2 turned on? I mean the equivalent of theirs

    .L13:
         movdqa   (%r8), %xmm2
         ...

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Re:A bug story: data alignment on x86 by qb45 on Monday November 07, 2016 @03:32PM (#12894751)

movdqu, obviously. And the code is shorter now, I guess it drops this part responsible for processing the first 1~3 elements of the array to reach 16B alignment.

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