Nirav Dave d2f1fe5fc1 Preserve DebugInfo when replacing values in DAGCombiner
[DAG] Previously debug values would transfer debuginfo for the selected
start node for a replacement which allows for debug to be dropped.

Push debug value transfer to occur with node/value replacement in
SelectionDAG, remove now extraneous transfers of debug values.

This refixes PR9817 which was being incompletely checked in the
testsuite.

Reviewers: jyknight

Subscribers: dblaikie, llvm-commits

Differential Revision: http://reviews.llvm.org/D21037

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272792 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-15 14:50:08 +00:00
..