[Bug sanitizer/88234] UBsan and runtime error: signed integer overflow using unsigned vector

[vincent-gcc at vinc17 dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88234

Vincent Lefèvre <vincent-gcc at vinc17 dot net> changed:

           What    |Removed                     |Added
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                 CC|                            |vincent-gcc at vinc17 dot net

--- Comment #1 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
About

  typedef __vector unsigned char uint8x16_p;
[...]
  vec_vsx_st((uint8x16_p)c, 0, x);

isn't this an integer promotion issue, unsigned char being promoted to int,
thus being signed?