[llvm] [AArch64] NFC: Simplify the smstart/smstop pseudo. (PR #85067)

[Kerry McLaughlin via llvm-commits]

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@@ -997,9 +997,9 @@ AArch64ExpandPseudo::expandCondSMToggle(MachineBasicBlock &MBB,
   // streaming-compatible function:
   //
   // OrigBB:
-  //   MSRpstatePseudo 3, 0, %0, 0, <regmask>             <- Conditional SMSTOP
+  //   MSRpstatePseudo 3, 0, %0, IfCallerIsStreaming, <regmask>  <- Cond SMSTOP
   //   bl @normal_callee
-  //   MSRpstatePseudo 3, 1, %0, 0, <regmask>             <- Conditional SMSTART
+  //   MSRpstatePseudo 3, 1, %0, IfCallerIsStreaming, <regmask>  <- Cond SMSTART
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kmclaughlin-arm wrote:

Similar to above, does the `%0` need to be removed from this comment?

https://github.com/llvm/llvm-project/pull/85067