Revert 49006 for the moment.

[oota-llvm.git] / lib / Target / X86 / X86RegisterInfo.cpp

diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index 234c24b6afc45f569453fe32dfce1dbf349b35bf..5cd2fbe35e6618f1a3bdc67f39591402a88a8642 100644 (file)
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -155,34 +155,6 @@ X86RegisterInfo::getCrossCopyRegClass(const TargetRegisterClass *RC) const {
   return NULL;
 }
 
-void X86RegisterInfo::reMaterialize(MachineBasicBlock &MBB,
-                                    MachineBasicBlock::iterator I,
-                                    unsigned DestReg,
-                                    const MachineInstr *Orig) const {
-  // MOV32r0 etc. are implemented with xor which clobbers condition code.
-  // Re-materialize them as movri instructions to avoid side effects.
-  switch (Orig->getOpcode()) {
-  case X86::MOV8r0:
-    BuildMI(MBB, I, TII.get(X86::MOV8ri), DestReg).addImm(0);
-    break;
-  case X86::MOV16r0:
-    BuildMI(MBB, I, TII.get(X86::MOV16ri), DestReg).addImm(0);
-    break;
-  case X86::MOV32r0:
-    BuildMI(MBB, I, TII.get(X86::MOV32ri), DestReg).addImm(0);
-    break;
-  case X86::MOV64r0:
-    BuildMI(MBB, I, TII.get(X86::MOV64ri32), DestReg).addImm(0);
-    break;
-  default: {
-    MachineInstr *MI = Orig->clone();
-    MI->getOperand(0).setReg(DestReg);
-    MBB.insert(I, MI);
-    break;
-  }
-  }
-}
-
 const unsigned *
 X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
   static const unsigned CalleeSavedRegs32Bit[] = {