Merge pull request #891 from YosysHQ/xilinx_keep
authorDavid Shah <davey1576@gmail.com>
Fri, 22 Mar 2019 14:28:29 +0000 (14:28 +0000)
committerGitHub <noreply@github.com>
Fri, 22 Mar 2019 14:28:29 +0000 (14:28 +0000)
xilinx: Add keep attribute where appropriate


Trivial merge