Revert 97667. It broke a bunch of tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97673 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 62 deletions

diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index 0a9ad11399..66be26c950 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -419,68 +419,6 @@ private:
   void AddRegOperandsToUseLists(MachineRegisterInfo &RegInfo);
 };
 
-/// DenseMapInfo for MachineInstr*.
-template<> struct DenseMapInfo<MachineInstr*> {
-  static inline MachineInstr *getEmptyKey() {
-    return 0;
-  }
-
-  static inline MachineInstr *getTombstoneKey() {
-    return reinterpret_cast<MachineInstr*>(-1);
-  }
-
-  static unsigned getHashValue(const MachineInstr* const &MI) {
-    unsigned Hash = MI->getOpcode() * 37;
-    for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
-      const MachineOperand &MO = MI->getOperand(i);
-      uint64_t Key = (uint64_t)MO.getType() << 32;
-      switch (MO.getType()) {
-        default: break;
-        case MachineOperand::MO_Register:
-          if (MO.isDef())
-            continue;  // Skip defs.
-          Key |= MO.getReg();
-          break;
-        case MachineOperand::MO_Immediate:
-          Key |= MO.getImm();
-          break;
-        case MachineOperand::MO_FrameIndex:
-        case MachineOperand::MO_ConstantPoolIndex:
-        case MachineOperand::MO_JumpTableIndex:
-          Key |= MO.getIndex();
-          break;
-        case MachineOperand::MO_MachineBasicBlock:
-          Key |= DenseMapInfo<void*>::getHashValue(MO.getMBB());
-          break;
-        case MachineOperand::MO_GlobalAddress:
-          Key |= DenseMapInfo<void*>::getHashValue(MO.getGlobal());
-          break;
-        case MachineOperand::MO_BlockAddress:
-          Key |= DenseMapInfo<void*>::getHashValue(MO.getBlockAddress());
-          break;
-      }
-      Key += ~(Key << 32);
-      Key ^= (Key >> 22);
-      Key += ~(Key << 13);
-      Key ^= (Key >> 8);
-      Key += (Key << 3);
-      Key ^= (Key >> 15);
-      Key += ~(Key << 27);
-      Key ^= (Key >> 31);
-      Hash = (unsigned)Key + Hash * 37;
-    }
-    return Hash;
-  }
-
-  static bool isEqual(const MachineInstr* const &LHS,
-                      const MachineInstr* const &RHS) {
-    if (RHS == getEmptyKey() || RHS == getTombstoneKey() ||
-        LHS == getEmptyKey() || LHS == getTombstoneKey())
-      return LHS == RHS;
-    return LHS->isIdenticalTo(RHS, MachineInstr::IgnoreVRegDefs);
-  }
-};
-
 //===----------------------------------------------------------------------===//
 // Debugging Support