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From: "kees at outflux dot net" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/105679] [12 Regression] extra -Warray-bounds
 warning added with -fsanitize=shift due to jump threading
Date: Sat, 30 Jul 2022 23:50:54 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105679

--- Comment #6 from Kees Cook <kees at outflux dot net> ---
(In reply to Richard Biener from comment #5)
> Should be fixed on trunk.  Can you check on the original unreduced testca=
se?

Thanks! I've done test builds and can confirm these two false positives have
been eliminated:

arch/x86/kvm/emulate.c:251:27: warning: array subscript 32 is above array
bounds of 'long unsigned int[17]' [-Warray-bounds]
arch/x86/kvm/ioapic.c:213:33: warning: array subscript 32 is above array bo=
unds
of 'union kvm_ioapic_redirect_entry[24]' [-Warray-bounds]

Is this backportable to gcc 12?=