[weak vtables] Remove a bunch of weak vtables
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.
Differential Revision: http://llvm-reviews.chandlerc.com/D2068
Reviewed by Andy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195064 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineRegisterInfo.cpp b/lib/CodeGen/MachineRegisterInfo.cpp
index ce7d567..f8b8796 100644
--- a/lib/CodeGen/MachineRegisterInfo.cpp
+++ b/lib/CodeGen/MachineRegisterInfo.cpp
@@ -19,6 +19,9 @@
using namespace llvm;
+// Pin the vtable to this file.
+void MachineRegisterInfo::Delegate::anchor() {}
+
MachineRegisterInfo::MachineRegisterInfo(const TargetMachine &TM)
: TM(TM), TheDelegate(0), IsSSA(true), TracksLiveness(true) {
VRegInfo.reserve(256);
diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index 3144dfe..e71c4df 100644
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -72,6 +72,10 @@
// DAG subtrees must have at least this many nodes.
static const unsigned MinSubtreeSize = 8;
+// Pin the vtables to this file.
+void MachineSchedStrategy::anchor() {}
+void ScheduleDAGMutation::anchor() {}
+
//===----------------------------------------------------------------------===//
// Machine Instruction Scheduling Pass and Registry
//===----------------------------------------------------------------------===//
diff --git a/lib/CodeGen/RegAllocBase.cpp b/lib/CodeGen/RegAllocBase.cpp
index b94ce4d..293e306 100644
--- a/lib/CodeGen/RegAllocBase.cpp
+++ b/lib/CodeGen/RegAllocBase.cpp
@@ -50,6 +50,9 @@
// RegAllocBase Implementation
//===----------------------------------------------------------------------===//
+// Pin the vtable to this file.
+void RegAllocBase::anchor() {}
+
void RegAllocBase::init(VirtRegMap &vrm,
LiveIntervals &lis,
LiveRegMatrix &mat) {
diff --git a/lib/CodeGen/RegAllocBase.h b/lib/CodeGen/RegAllocBase.h
index 9c00298..c17a8d9 100644
--- a/lib/CodeGen/RegAllocBase.h
+++ b/lib/CodeGen/RegAllocBase.h
@@ -57,6 +57,7 @@
/// live range splitting. They must also override enqueue/dequeue to provide an
/// assignment order.
class RegAllocBase {
+ virtual void anchor();
protected:
const TargetRegisterInfo *TRI;
MachineRegisterInfo *MRI;