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

[xiezhiheng at huawei dot com]

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

--- Comment #2 from xiezhiheng at huawei dot com ---
(In reply to Andrew Pinski from comment #1)
> Created attachment 60705 [details]
> 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).

Got it, thanks