Revert r194865 and r194874.

This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
  Base *foo = new Child();
  delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.

llvm-svn: 194997

1 files changed, 0 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp
index df756ba6e3f..3144dfe4d39 100644
--- a/llvm/lib/CodeGen/MachineScheduler.cpp
+++ b/llvm/lib/CodeGen/MachineScheduler.cpp
@@ -72,10 +72,6 @@ static cl::opt<bool> VerifyScheduling("verify-misched", cl::Hidden,
 // DAG subtrees must have at least this many nodes.
 static const unsigned MinSubtreeSize = 8;
 
-// pin vtable to this file
-void MachineSchedStrategy::anchor() {}
-void ScheduleDAGMutation::anchor() {}
-
 //===----------------------------------------------------------------------===//
 // Machine Instruction Scheduling Pass and Registry
 //===----------------------------------------------------------------------===//