commit 83768b93ba5df47e6d4e8b16aab4627f47636a0d
author Craig Topper <craig.topper@intel.com> Mon Mar 25 06:53:45 2019 +0000
committer Craig Topper <craig.topper@intel.com> Mon Mar 25 06:53:45 2019 +0000
tree 76130ec4159c5bc7db9b2202102d699d4a73763d
parent 52df471d08be47a70f4c7fa48059ef98f562038b

[X86] When selecting (x << C1) op C2 as (x op (C2>>C1)) << C1, use the operation VT for the target constant.

Normally when the nodes we use here(AND32ri8 for example) are selected their
immediates are just converted from ConstantSDNode to TargetConstantSDNode
without changing VT from the original operation VT. So we should still be
emitting them with the operation VT.

Theoretically this could expose more accurate opportunities for CSE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356869 91177308-0d34-0410-b5e6-96231b3b80d8