[Bug rtl-optimization/101188] [postreload] Uses content of a clobbered register

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101188

--- Comment #16 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Created attachment 55317
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55317&action=edit
Backport to v13 of Jeff's patch.