[AMDGPU] Fix VC warning about singed/unsigned comparison. NFC.

This is the warning reported in https://reviews.llvm.org/D89599

diff --git a/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp b/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
index 29cb100..2619cd3 100644 (file)
--- a/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
+++ b/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
@@ -548,7 +548,7 @@ static MachineInstr* matchSwap(MachineInstr &MovT, MachineRegisterInfo &MRI,
       if (I->hasRegisterImplicitUseOperand(AMDGPU::M0))
         continue;
 
-      if (Size > 1 && (I->getNumImplicitOperands() > (I->isCopy() ? 0 : 1)))
+      if (Size > 1 && (I->getNumImplicitOperands() > (I->isCopy() ? 0U : 1U)))
         continue;
 
       MovX = &*I;