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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194997 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 1 insertions, 9 deletions

diff --git a/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp b/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp
index 8f4e224219..5c08de1ccf 100644
--- a/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp
+++ b/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp
@@ -37,9 +37,6 @@
 
 using namespace llvm;
 
-// pin 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 102057193e..375daee59e 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_DTOR
+#define GET_INSTRINFO_CTOR
 #include "PPCGenInstrInfo.inc"
 
 using namespace llvm;
@@ -45,9 +45,6 @@ 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 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 f140c41a2a..bd72a4d9e5 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.h
+++ b/lib/Target/PowerPC/PPCInstrInfo.h
@@ -78,7 +78,6 @@ 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 e876be16a9..3ecd8a8b0a 100644
--- a/lib/Target/PowerPC/PPCTargetStreamer.h
+++ b/lib/Target/PowerPC/PPCTargetStreamer.h
@@ -15,7 +15,6 @@
 namespace llvm {
 class PPCTargetStreamer : public MCTargetStreamer {
 public:
-  virtual ~PPCTargetStreamer();
   virtual void emitTCEntry(const MCSymbol &S) = 0;
 };
 }