[PATCH] D139691: [PowerPC] add a peephole to remove redundant swap instructions after vector splats on P8

[ChenZheng via Phabricator via llvm-commits]

shchenz added inline comments.


================
Comment at: llvm/lib/Target/PowerPC/PPCMIPeephole.cpp:647
           LLVM_DEBUG(MI.dump());
+        } else if (Immed == 2 &&
+                   (DefOpc == PPC::VSPLTB || DefOpc == PPC::VSPLTH ||
----------------
Can this branch be merged to the above one at line 627? Splat a double word and the double word is a splat of a small unit should also can be removed?


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  https://reviews.llvm.org/D139691/new/

https://reviews.llvm.org/D139691