[PATCH] D126250: [CodeGen][AArch64] Add support for LDAPR
Eli Friedman via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue May 31 14:19:53 PDT 2022
efriedma added inline comments.
================
Comment at: llvm/lib/Target/AArch64/AArch64.td:68
+def FeatureLDAPR : SubtargetFeature<"ldapr", "HasLDAPR", "true",
+ "Enable ARMv8.3 (optional in v8.2) RCPC LDAPR instruction">;
+
----------------
This description is a bit misleading; it's not about whether the instructions themselves are enabled. It should explicitly say something "Use LDAPR to lower atomic loads; experimental until we have more testing/a formal correctness proof".
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D126250/new/
https://reviews.llvm.org/D126250
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