tree e511fcf452d8b3e295c72a838be474256b8deffb
parent 3e38505d0613c6d284201665f018135a643b5f8d
author Nikita Popov <nikita.ppv@gmail.com> 1550597875 +0000
committer Nikita Popov <nikita.ppv@gmail.com> 1550597875 +0000

[SDAG] Use shift amount type in MULO promotion; NFC

Directly use the correct shift amount type if it is possible, and
future-proof the code against vectors. The added test makes sure that
bitwidths that do not fit into the shift amount type do not assert.

Split out from D57997.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354359 91177308-0d34-0410-b5e6-96231b3b80d8