[SelectionDAG] fix formatting and redundant comments; NFC
authorSanjay Patel <spatel@rotateright.com>
Mon, 27 May 2019 18:26:43 +0000 (18:26 +0000)
committerSanjay Patel <spatel@rotateright.com>
Mon, 27 May 2019 18:26:43 +0000 (18:26 +0000)
commite13ae3e4d82b95ca1086f658de00402ffb6b128e
treee9989423eddd344712d066969f6c4450d207e1a6
parent9c70c574b4fec75f4c8a530891e6e412e7ad77be
[SelectionDAG] fix formatting and redundant comments; NFC

There's a possible missing fold here for extracting from the
same source vector. It's similar to a check that we use to
squash a build vector with all extracted elements from the
same source vector.

llvm-svn: 361778
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp