[Bug rtl-optimization/79593] [7/8/9 Regression] Poor/Worse code generation for FPU on versions after 6

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79593

--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 45368
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45368&action=edit
gcc9-pr79593.patch

This patch solves that with a peephole2 (untested so far).  I agree it would be
better to solve generally in some pass, but no pass is a good fit for that
right now.