[PATCH] D19825: Power9 - Add exploitation of vector load and store that do not require swaps

[Nemanja Ivanovic via llvm-commits]

nemanjai added inline comments.

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Comment at: lib/Target/PowerPC/PPCInstrVSX.td:2159
@@ +2158,3 @@
+
+  let AddedComplexity = 500 in {
+    def : Pat<(v2f64 (load xoaddr:$src)), (LXVX xoaddr:$src)>;
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I'll add to the readme that patterns can be added to emit lxvd2x and friends in cases where we happen to want the elements in the reverse order (i.e. something like the vec_xl use as well as if the load is followed by a vector_shuffle that will reverse the elements).


Repository:
  rL LLVM

http://reviews.llvm.org/D19825