[InstCombine] add more tests for shuffle folding; NFC
authorSanjay Patel <spatel@rotateright.com>
Tue, 21 May 2019 21:45:24 +0000 (21:45 +0000)
committerSanjay Patel <spatel@rotateright.com>
Tue, 21 May 2019 21:45:24 +0000 (21:45 +0000)
commit3590bae8d6fa95ff7f7d52f110a5357aa2f455a7
tree341e44c35d099cd52eae2b1ca40502a8fc2557f3
parentd008183ea4902b82ed92937c845d60792e871c50
[InstCombine] add more tests for shuffle folding; NFC

As discussed in D62024, we want to limit any potential IR
transforms of shuffles to cases where we know the SDAG
conversion would result in equivalent patterns for these
IR variants.

llvm-svn: 361317
llvm/test/Transforms/InstCombine/vec_shuffle.ll