Drop support for Mips1 and Mips2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139405 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 44 deletions

diff --git a/lib/Target/Mips/MipsMCInstLower.cpp b/lib/Target/Mips/MipsMCInstLower.cpp
index 58e1844305..16ec41ef51 100644
--- a/lib/Target/Mips/MipsMCInstLower.cpp
+++ b/lib/Target/Mips/MipsMCInstLower.cpp
@@ -83,50 +83,6 @@ MCOperand MipsMCInstLower::LowerSymbolOperand(const MachineOperand &MO,
                                                            Ctx));
 }
 
-// If target is Mips1, expand double precision load/store to two single
-// precision loads/stores.
-// 
-//  ldc1 $f0, lo($CPI0_0)($5) gets expanded to the following two instructions:
-//  (little endian)
-//   lwc1 $f0, lo($CPI0_0)($5) and
-//   lwc1 $f1, lo($CPI0_0+4)($5)
-//  (big endian)
-//   lwc1 $f1, lo($CPI0_0)($5) and
-//   lwc1 $f0, lo($CPI0_0+4)($5)
-void MipsMCInstLower::LowerMips1F64LoadStore(const MachineInstr *MI,
-                                             unsigned Opc,
-                                             SmallVector<MCInst, 4>& MCInsts,
-                                             bool isLittle,
-                                             const unsigned *SubReg) const {
-  MCInst InstLo, InstHi, DelaySlot;
-  unsigned SingleOpc = (Opc == Mips::LDC1 ? Mips::LWC1 : Mips::SWC1);
-  unsigned RegLo = isLittle ? *SubReg : *(SubReg + 1);
-  unsigned RegHi = isLittle ? *(SubReg + 1) : *SubReg;
-  const MachineOperand &MO1 = MI->getOperand(1);
-  const MachineOperand &MO2 = MI->getOperand(2);
-
-  InstLo.setOpcode(SingleOpc);
-  InstLo.addOperand(MCOperand::CreateReg(RegLo));
-  InstLo.addOperand(LowerOperand(MO1));
-  InstLo.addOperand(LowerOperand(MO2));
-  MCInsts.push_back(InstLo);
-
-  InstHi.setOpcode(SingleOpc);
-  InstHi.addOperand(MCOperand::CreateReg(RegHi));
-  InstHi.addOperand(LowerOperand(MO1));
-  if (MO2.isImm())// The offset of addr operand is an immediate: e.g. 0($sp)
-    InstHi.addOperand(MCOperand::CreateImm(MO2.getImm() + 4));
-  else// Otherwise, the offset must be a symbol: e.g. lo($CPI0_0)($5)
-    InstHi.addOperand(LowerSymbolOperand(MO2, MO2.getType(), 4));
-  MCInsts.push_back(InstHi);
-
-  // Need to insert a NOP in LWC1's delay slot.
-  if (SingleOpc == Mips::LWC1) {
-    DelaySlot.setOpcode(Mips::NOP);
-    MCInsts.push_back(DelaySlot);
-  }
-}
-
 MCOperand MipsMCInstLower::LowerOperand(const MachineOperand& MO) const {
   MachineOperandType MOTy = MO.getType();