[Bug target/122763] New: aarch64: ICE when laying out arguments of size 0

[alfierichards at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122763

            Bug ID: 122763
           Summary: aarch64: ICE when laying out arguments of size 0
           Product: gcc
           Version: 16.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: alfierichards at gcc dot gnu.org
  Target Milestone: ---

In aarch64, when laying out arguments of size 0, then there is potential to
cause and ICE.

Reproducer:

>typedef struct es {} Empty;
>int foo(int, int, int, int, int, int, int, int, Empty);
>int bar() {
>  Empty e;
>  return foo(0,0,0,0,0,0,0,0,e);
>}

Bug introduced by: r16-5076-g7197d8062fddc2
Noticed by Iain Sandoe (idsandoe@googlemail.com)