[llvm] [AArch64][SME] Remove implicit-def's on smstart (PR #69012)

[Sander de Smalen via llvm-commits]

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@@ -400,8 +396,37 @@ entry:
   ret i8 %vecext
 }
 
+define void @call_to_non_streaming_pass_args(ptr nocapture noundef readnone %ptr, i64 %long1, i64 %long2, i32 %int1, i32 %int2, float %float1, float %float2, double %double1, double %double2) #0 {
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sdesmalen-arm wrote:

Could you add a similar test to `sme-streaming-compatible-interface.ll`?

https://github.com/llvm/llvm-project/pull/69012