[Bug rtl-optimization/38518] Excessive compile time with -O3

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38518

--- Comment #12 from David Binderman <dcb314 at hotmail dot com> ---

With recent gcc:

no -O flag: 2 seconds

-O2: 24 seconds

-O3: 247 seconds

I'll have a look at -ftime-report.