[PATCH] D52483: [AArch64][v8.5A] Add speculation barriers SSBB and PSSBB

[Tim Northover via Phabricator via llvm-commits]

t.p.northover added inline comments.


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Comment at: lib/Target/AArch64/AArch64InstrInfo.td:648-649
 def : InstAlias<"isb", (ISB 0xf)>;
+def : InstAlias<"ssbb", (DSB 0)>;
+def : InstAlias<"pssbb", (DSB 4)>;
 
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I think these should have `Predicates` set since not all CPUs support them.


Repository:
  rL LLVM

https://reviews.llvm.org/D52483