remove some dead code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30938 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index eb85abf..939b869 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -239,39 +239,6 @@ MachineInstr *X86InstrInfo::commuteInstruction(MachineInstr *MI) const {
   }
 }
 
-
-void X86InstrInfo::insertGoto(MachineBasicBlock& MBB,
-                              MachineBasicBlock& TMBB) const {
-  BuildMI(MBB, MBB.end(), X86::JMP, 1).addMBB(&TMBB);
-}
-
-MachineBasicBlock::iterator
-X86InstrInfo::reverseBranchCondition(MachineBasicBlock::iterator MI) const {
-  unsigned Opcode = MI->getOpcode();
-  assert(isBranch(Opcode) && "MachineInstr must be a branch");
-  unsigned ROpcode;
-  switch (Opcode) {
-  default: assert(0 && "Cannot reverse unconditional branches!");
-  case X86::JB:  ROpcode = X86::JAE; break;
-  case X86::JAE: ROpcode = X86::JB;  break;
-  case X86::JE:  ROpcode = X86::JNE; break;
-  case X86::JNE: ROpcode = X86::JE;  break;
-  case X86::JBE: ROpcode = X86::JA;  break;
-  case X86::JA:  ROpcode = X86::JBE; break;
-  case X86::JS:  ROpcode = X86::JNS; break;
-  case X86::JNS: ROpcode = X86::JS;  break;
-  case X86::JP:  ROpcode = X86::JNP; break;
-  case X86::JNP: ROpcode = X86::JP;  break;
-  case X86::JL:  ROpcode = X86::JGE; break;
-  case X86::JGE: ROpcode = X86::JL;  break;
-  case X86::JLE: ROpcode = X86::JG;  break;
-  case X86::JG:  ROpcode = X86::JLE; break;
-  }
-  MachineBasicBlock* MBB = MI->getParent();
-  MachineBasicBlock* TMBB = MI->getOperand(0).getMachineBasicBlock();
-  return BuildMI(*MBB, MBB->erase(MI), ROpcode, 1).addMBB(TMBB);
-}
-
 const TargetRegisterClass *X86InstrInfo::getPointerRegClass() const {
   const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
   if (Subtarget->is64Bit())

diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h
index 01b4cff..3e0694f 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.h
+++ b/lib/Target/X86/X86InstrInfo.h
@@ -223,16 +223,6 @@ public:
   virtual MachineInstr *commuteInstruction(MachineInstr *MI) const;
 
 
-  /// Insert a goto (unconditional branch) sequence to TMBB, at the
-  /// end of MBB
-  virtual void insertGoto(MachineBasicBlock& MBB,
-                          MachineBasicBlock& TMBB) const;
-
-  /// Reverses the branch condition of the MachineInstr pointed by
-  /// MI. The instruction is replaced and the new MI is returned.
-  virtual MachineBasicBlock::iterator
-  reverseBranchCondition(MachineBasicBlock::iterator MI) const;
-
   const TargetRegisterClass *getPointerRegClass() const;
 
   // getBaseOpcodeFor - This function returns the "base" X86 opcode for the