[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

4 files changed, 9 insertions, 1 deletions

diff --git a/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp b/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp
index 5c08de1..f18d095 100644
--- a/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp
+++ b/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp
@@ -37,6 +37,9 @@
 
 using namespace llvm;
 
+// Pin the vtable to this file.
+PPCTargetStreamer::~PPCTargetStreamer() {}
+
 static MCInstrInfo *createPPCMCInstrInfo() {
   MCInstrInfo *X = new MCInstrInfo();
   InitPPCMCInstrInfo(X);
diff --git a/lib/Target/PowerPC/PPCInstrInfo.cpp b/lib/Target/PowerPC/PPCInstrInfo.cpp
index 375daee..87e13ef 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -33,7 +33,7 @@
 #include "llvm/Support/raw_ostream.h"
 
 #define GET_INSTRMAP_INFO
-#define GET_INSTRINFO_CTOR
+#define GET_INSTRINFO_CTOR_DTOR
 #include "PPCGenInstrInfo.inc"
 
 using namespace llvm;
@@ -45,6 +45,9 @@ opt<bool> DisableCTRLoopAnal("disable-ppc-ctrloop-analysis", cl::Hidden,
 static cl::opt<bool> DisableCmpOpt("disable-ppc-cmp-opt",
 cl::desc("Disable compare instruction optimization"), cl::Hidden);
 
+// Pin the vtable to this file.
+void PPCInstrInfo::anchor() {}
+
 PPCInstrInfo::PPCInstrInfo(PPCTargetMachine &tm)
   : PPCGenInstrInfo(PPC::ADJCALLSTACKDOWN, PPC::ADJCALLSTACKUP),
     TM(tm), RI(*TM.getSubtargetImpl()) {}
diff --git a/lib/Target/PowerPC/PPCInstrInfo.h b/lib/Target/PowerPC/PPCInstrInfo.h
index bd72a4d..f140c41 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.h
+++ b/lib/Target/PowerPC/PPCInstrInfo.h
@@ -78,6 +78,7 @@ class PPCInstrInfo : public PPCGenInstrInfo {
                             const TargetRegisterClass *RC,
                             SmallVectorImpl<MachineInstr*> &NewMIs,
                             bool &NonRI, bool &SpillsVRS) const;
+  virtual void anchor();
 public:
   explicit PPCInstrInfo(PPCTargetMachine &TM);
 
diff --git a/lib/Target/PowerPC/PPCTargetStreamer.h b/lib/Target/PowerPC/PPCTargetStreamer.h
index 3ecd8a8..e876be1 100644
--- a/lib/Target/PowerPC/PPCTargetStreamer.h
+++ b/lib/Target/PowerPC/PPCTargetStreamer.h
@@ -15,6 +15,7 @@
 namespace llvm {
 class PPCTargetStreamer : public MCTargetStreamer {
 public:
+  virtual ~PPCTargetStreamer();
   virtual void emitTCEntry(const MCSymbol &S) = 0;
 };
 }