[llvm] [AArch64] Add extra sched predicates (PR #184801)

[David Green via llvm-commits]

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@@ -11,6 +11,13 @@
 //
 //===----------------------------------------------------------------------===//
 
+// Define STI for use in SchedPredicate code snippets.
+def : PredicateProlog<[{
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davemgreen wrote:

Is this already in AArch64Schedule.td?

https://github.com/llvm/llvm-project/pull/184801