[PATCH] D28379: [AArch64] Add support for lowering the bitreverse intrinsic to the rbit instruction.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


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Comment at: include/llvm/IR/IntrinsicsAArch64.td:45
+// prefer the generic bitreverse intrinsic.  At some point we should remove
+// this intrinsic once we're willing to break bitcode compatibility.
 def int_aarch64_rbit : Intrinsic<[llvm_anyint_ty], [LLVMMatchType<0>],
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You can remove this right now if you add support in AutoUpgrade.cpp


https://reviews.llvm.org/D28379