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| author | Robert Lougher <rob.lougher@gmail.com> | 2014-02-11 15:42:46 +0000 |
|---|---|---|
| committer | Robert Lougher <rob.lougher@gmail.com> | 2014-02-11 15:42:46 +0000 |
| commit | a63585a8f5fab55a4cd412eec632a98392b640ea (patch) | |
| tree | d834d3c267a85f7ccf4556a08fb08e4cf475f7bc /tools | |
| parent | 79ced8c5fa4e88394a9c4577537af4044d7a29f9 (diff) | |
| download | llvm-a63585a8f5fab55a4cd412eec632a98392b640ea.tar.gz llvm-a63585a8f5fab55a4cd412eec632a98392b640ea.tar.bz2 llvm-a63585a8f5fab55a4cd412eec632a98392b640ea.tar.xz | |
Teach the DAGCombiner how to fold concat_vector nodes when the input is two
BUILD_VECTOR nodes, e.g.:
(concat_vectors (BUILD_VECTOR a1, a2, a3, a4), (BUILD_VECTOR b1, b2, b3, b4))
->
(BUILD_VECTOR a1, a2, a3, a4, b1, b2, b3, b4)
This fixes an issue with AVX, where a sequence was not recognized as a 256-bit
vbroadcast due to the concat_vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201158 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions