Revert rG57ee0435bd47f23f3939f402914c231b4f65ca5e - [TII] Use optional destination and source pair as a return value; NFC

This is breaking MSVC builds: http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/20375

1 files changed, 9 insertions, 5 deletions

diff --git a/llvm/lib/Target/Mips/Mips16InstrInfo.cpp b/llvm/lib/Target/Mips/Mips16InstrInfo.cpp
index e619b705584..0d735c20ec2 100644
--- a/llvm/lib/Target/Mips/Mips16InstrInfo.cpp
+++ b/llvm/lib/Target/Mips/Mips16InstrInfo.cpp
@@ -96,11 +96,15 @@ void Mips16InstrInfo::copyPhysReg(MachineBasicBlock &MBB,
     MIB.addReg(SrcReg, getKillRegState(KillSrc));
 }
 
-Optional<DestSourcePair>
-Mips16InstrInfo::isCopyInstrImpl(const MachineInstr &MI) const {
-  if (MI.isMoveReg())
-    return DestSourcePair{MI.getOperand(0), MI.getOperand(1)};
-  return None;
+bool Mips16InstrInfo::isCopyInstrImpl(const MachineInstr &MI,
+                                      const MachineOperand *&Src,
+                                      const MachineOperand *&Dest) const {
+  if (MI.isMoveReg()) {
+    Dest = &MI.getOperand(0);
+    Src = &MI.getOperand(1);
+    return true;
+  }
+  return false;
 }
 
 void Mips16InstrInfo::storeRegToStack(MachineBasicBlock &MBB,