[Bug rtl-optimization/115677] ICE when building argon2 with -flate-combine-instructions on amd64

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115677

--- Comment #3 from Sam James <sjames at gcc dot gnu.org> ---
Reduced:
```
void initialize() {}
```