[PATCH] D92420: [PowerPC] Exploitation of xxeval instruction for AND and NAND

[Baptiste Saleil via Phabricator via llvm-commits]

bsaleil added inline comments.


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Comment at: llvm/lib/Target/PowerPC/PPCInstrPrefix.td:2599
+            (v4i32 (XXEVAL $vA, $vB, $vC, !sub(255, 7)))>;
+  def : Pat<(v4i32 (or (vnot_ppc v4i32:$vA), (or v4i32:$vB, v4i32:$vC))),
+            (v4i32 (XXEVAL $vA, $vB, $vC, !sub(255, 8)))>;
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Should we add the equivalent functions from the ISA in comments next to the patterns that were simplified ? Like `// nand(A,nor(B,C))` here.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D92420/new/

https://reviews.llvm.org/D92420