https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116519
Bug ID: 116519
Summary: Arm64(?): undue array bounds warning
Product: gcc
Version: 14.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: jbeulich at suse dot com
Target Milestone: ---
Created attachment 59020
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59020&action=edit
shrunk down example
The attached example compiles fine with 13.3, but raises a warning (fails with
-Werror) on 14.2 with -Wall -O2, claiming an array subscript of -2 in
__irq_to_desc() when inlined into route_irq_to_guest().
Changing __irq_to_desc()'s parameter to unsigned int makes the issue go away.
Whether this is Arm64-specific I can't tell; the code in question takes this
specific form just there in the project the issue was first observed in.
