[Bug rtl-optimization/83213] [8 Regression] peephole bug with -O2

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83213

--- Comment #3 from David Binderman <dcb314 at hotmail dot com> ---
Created attachment 42749
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42749&action=edit
C source code

After 12 hours reducing, this is what I got.

I think creduce isn't very fast, in some cases.