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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug sanitizer/84508] Load of misaligned address using _mm_load_sd
Date: Mon, 28 Mar 2022 02:09:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D84508

--- Comment #16 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>According to Intel (
> https://software.intel.com/sites/landingpage/IntrinsicsGuide), there are =
no
> alignment requirements for _mm_load_sd, _mm_store_sd and _mm_loaddup_pd. =
For
> example, from _mm_load_sd:

I disagree with saying there is no alignment requirement.

The alignment requirement comes from the type of the argument (double const=
*).
So either the intrinsics definition needs to be changed to be correct or GC=
C is
correct.
Pointers themselves have an alignment requirement not just at the time of t=
he
load/store of them.=