[Bug target/119210] [SME] 'smstart za' seems not to dominate the block that uses za register

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119210

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 60705
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60705&action=edit
testcase

 -O2    -march=armv9-a+sve+sve2+sme-f64f64


Next time please attach the testcase (the attach a file has a text field which
you could paste the testcase into).