[llvm] [AArch64] Let patterns for NEON instructions check runtime mode. (PR #95560)

[Paul Walker via llvm-commits]

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@@ -6016,7 +6013,7 @@ def : Pat<(v2f64 (AArch64frsqrts (v2f64 FPR128:$Rn), (v2f64 FPR128:$Rm))),
 // Some float -> int -> float conversion patterns for which we want to keep the
 // int values in FP registers using the corresponding NEON instructions to
 // avoid more costly int <-> fp register transfers.
-let Predicates = [HasNEON] in {
+let Predicates = [HasNEONandIsStreamingSafe] in {
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paulwalker-arm wrote:

The predicate here doesn't match that used by the instruction's definition (e.g. `defm FCVTZS : ...`).  This looks fine because those definitions don't include any patterns.  However, that does suggest the `HasNEONandIsStreamingSafe` passed into some of those classes (e.g. `defm FRECPE : ...`) serves no purpose and can be removed rather than changed?

If you keep this change then please update the closing `}` comment because that still references `HasNEON`.

https://github.com/llvm/llvm-project/pull/95560