[PATCH] D52868: [AArch64][v8.5A] Restrict indirect tail calls to use x16/17 only when using BTI

[Tim Northover via Phabricator via llvm-commits]

t.p.northover added inline comments.


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Comment at: lib/Target/AArch64/AArch64InstrInfo.td:6641
+                   Sched<[WriteBrReg]>,
+                   Requires<[NotUseBTI]>;
   // Indirect tail-call with any register allowed, used by MachineOutliner when
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I don't think the `Requires` clauses here actually affect anything: there's no assembly syntax (or indeed MC-level feature) and the patterns are separate.


Repository:
  rL LLVM

https://reviews.llvm.org/D52868