[PATCH] D62667: [ARM] Add the non-MVE instructions in Arm v8.1-M.

[Dave Green via Phabricator via llvm-commits]

dmgreen added inline comments.


================
Comment at: llvm/lib/Target/ARM/ARMScheduleA57.td:98
+
+  let UnsupportedFeatures = [HasV8_1MMainline, HasMVEInt, HasMVEFloat,
+                             HasFPRegsV8_1M];
----------------
samparker wrote:
> Why is this needed? And why just the A57?
I think this one is because the schedule has CompleteModel = 1 (it may be the only Arm schedule like that). A similar thing was done for SVE on older CPU's in the AArch64 backend not long ago.


Repository:
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  https://reviews.llvm.org/D62667/new/

https://reviews.llvm.org/D62667