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Subject: [Bug target/102027] [11/12 Regression] ABI break when using vector
 type in function arg/return value
Date: Tue, 24 Aug 2021 01:47:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102027

--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Andrew Pinski from comment #3)
> There are calls to vector_mode_supported_p in stor-layout which changes t=
he

It sounds odd to me since vector_mode_supported_p can change overtime.

> TYPE_MODE of the RECORD_TYPE depending on if vector_mode_supported_p retu=
rns
> true or not and classify_argument depends on TYPE_MODE in some cases ....

I am not sure if we can fix it in backend alone.=