[InstCombine] Add additional sub nsw inference tests; NFC
authorNikita Popov <nikita.ppv@gmail.com>
Wed, 20 Mar 2019 21:42:17 +0000 (21:42 +0000)
committerNikita Popov <nikita.ppv@gmail.com>
Wed, 20 Mar 2019 21:42:17 +0000 (21:42 +0000)
commit03dbfc2eefdbac5e3bc464b279e751c4f39b28f2
treef506fb6b170b9384b4470a9a1caaa464f8eff945
parent0a11829ab23ac478226cdf97cc0434dd4557abff
[InstCombine] Add additional sub nsw inference tests; NFC

nsw can be determined based on known bits here, but currently
isn't.

llvm-svn: 356620
llvm/test/Transforms/InstCombine/sub.ll