[PATCH] D52216: [AArch64] Support adding X[8-15, 18] registers as CSRs.

[Nick Desaulniers via Phabricator via llvm-commits]

nickdesaulniers added inline comments.


================
Comment at: lib/Target/AArch64/AArch64.td:109
+    def FeatureCallSavedX#i : SubtargetFeature<"call-saved-x"#i,
+         "CustomCallSavedXRegs["#i#"]", "true", "Make X"#i#" callee saved.">;
+
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Since x18 can now be call-saved, any thoughts to how llvm should handle x18 being both call-saved and reserved (above line 102)?  Maybe a test can be added for this case?


Repository:
  rL LLVM

https://reviews.llvm.org/D52216