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From: "amonakov at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/93031] Wish: When the underlying ISA does not force pointer
 alignment, option to make GCC not assume it
Date: Mon, 03 May 2021 14:58:08 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D93031

--- Comment #7 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
In comment #2 I touched upon a potentially more practical way to offer
-fno-strict-alignment:

Run early work with ABI alignments: compute __alignof correctly, lay out
composite types as required by ABI, and assign alignments to variables
(including stack variables and function parameters). Then make a pass over
types and reduce their alignment. This way, optimizations see a universe wh=
ere
types have alignment 1, and variables are defined as if they had an explicit
attribute-align with increased alignment (and likewise for structure fields=
).=