[Bug target/91102] [9/10 Regression] aarch64 ICE on Linux kernel with -Os starting with r270266

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91102

--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
91102.c: In function 'foo':
91102.c:7:1: warning: control reaches end of non-void function [-Wreturn-type]
    7 | }
      | ^

so ice-on-invalid-code?

Although, hrm, inserting "return 3;" there still ICEs.