DAGCombine: Make sure we only eliminate trunc/extend when the scales of truncation and extension match.
This fixes PR33368.

Reviewer: rksimon

Differential Revision:  https://reviews.llvm.org/D34069



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306345 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed