[PATCH] D77069: [ARM][MVE] Add patterns for VRHADD

[Sjoerd Meijer via Phabricator via llvm-commits]

SjoerdMeijer added inline comments.


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Comment at: llvm/lib/Target/ARM/ARMInstrMVE.td:2033
+def : Pat<(v16i8 (ARMvshrsImm (add (add (v16i8 MQPR:$Qm), (v16i8 MQPR:$Qn)),
+                                        (v16i8 (ARMvmovImm (i32 3585)))),
+                                   (i32 1))),
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I have seen these constants like the (ARMvmovImm (i32 3585)) here before, but can't remember what they encode. Is that the constant vector of 1s? Is that worth at least a comment?


Repository:
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  https://reviews.llvm.org/D77069/new/

https://reviews.llvm.org/D77069