[PATCH] D153865: [LoongArch] Add back SDNPSideEffect properties to CSR and IOCSR read ops
WÁNG Xuěruì via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Jun 27 06:32:01 PDT 2023
xen0n added a comment.
In D153865#4452321 <https://reviews.llvm.org/D153865#4452321>, @SixWeining wrote:
> Interesting. Does cpucfg have the same issue?
In theory CPUCFG data could be altered by writing to certain model-specific CSRs, but I don't think it's worthwhile to make it volatile too, because no kernel should be doing that under the hood (at most do this once before starting even PID1; in fact no known LoongArch OSes do this).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D153865/new/
https://reviews.llvm.org/D153865
More information about the llvm-commits
mailing list