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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/103882] Register corruption in ASM only functions when
 optization is -O2/-Os/-O3
Date: Fri, 31 Dec 2021 20:51:07 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103882

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Oh that is because there is some IPA Register allocation going on. Anyways =
this
is still not a bug. You need to mark a0 as a clobber in the inline-asm to l=
et
GCC know that a0 is touched.=