[Bug target/117468] [12/13/14/15/16 Regression] arm thumb1 high reg restoration trashes register reserved with -ffixed-reg

[matt.parks@go-aps.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117468

--- Comment #3 from Matt Parks <matt.parks@go-aps.com> ---
Created attachment 61835
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61835&action=edit
Patch (also e-mailed to gcc-patches)

Adding patch as text attachment because apparently my e-mail to gcc-patches is
not formatted correctly from my webmail client.