https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91373
--- Comment #7 from Qiang ---
Sorry to be a bother and thanks all of you.
'-fsanitize=undefined' & '-fwrapv' are new item to me.
'-fsanitize=undefined' is helpful to me to find out the similar issue in our
code.
'-fwrapv' may hide other
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91373
--- Comment #2 from Qiang ---
Hi Andrew,
Thank your for your quickly reply.
I still have some questions about this issue.
It's very natural to write down the following code.
All arguments are declared with 'U16', and the return type is 'U32'.
FIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: qiang.fu at verisilicon dot com
Target Milestone: ---
Created attachment 46676
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46676=edit
main.c
Hi,
I met
