MachineInstr: Change return value of getOpcode() to unsigned.

This was previously returning int. However there are no negative opcode
numbers and more importantly this was needlessly different from
MCInstrDesc::getOpcode() (which even is the value returned here) and
SDValue::getOpcode()/SDNode::getOpcode().

llvm-svn: 237611

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/X86/X86FrameLowering.cpp b/llvm/lib/Target/X86/X86FrameLowering.cpp
index a25643b2e2e..ef1a2d7acc9 100644
--- a/llvm/lib/Target/X86/X86FrameLowering.cpp
+++ b/llvm/lib/Target/X86/X86FrameLowering.cpp
@@ -1986,7 +1986,7 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
   const X86RegisterInfo &RegInfo = *STI.getRegisterInfo();
   unsigned StackPtr = RegInfo.getStackRegister();
   bool reserveCallFrame = hasReservedCallFrame(MF);
-  int Opcode = I->getOpcode();
+  unsigned Opcode = I->getOpcode();
   bool isDestroy = Opcode == TII.getCallFrameDestroyOpcode();
   bool IsLP64 = STI.isTarget64BitLP64();
   DebugLoc DL = I->getDebugLoc();