[Bug target/123313] `a < 10 ? b : -1` could be better

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123313

--- Comment #4 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Created attachment 63177
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63177&action=edit
POC patch

Untested other than verifying desired output from testcase