[NFC] Fix unused variable warning in X86RegisterBankInfo.cpp

llvm-svn: 341198

diff --git a/llvm/lib/Target/X86/X86RegisterBankInfo.cpp b/llvm/lib/Target/X86/X86RegisterBankInfo.cpp
index 7e40a9e..9c725f1 100644 (file)
--- a/llvm/lib/Target/X86/X86RegisterBankInfo.cpp
+++ b/llvm/lib/Target/X86/X86RegisterBankInfo.cpp
@@ -217,6 +217,7 @@ X86RegisterBankInfo::getInstrMapping(const MachineInstr &MI) const {
            "Mismatched operand sizes for G_FCMP");
 
     unsigned Size = Ty1.getSizeInBits();
+    (void)Size;
     assert((Size == 32 || Size == 64) && "Unsupported size for G_FCMP");
 
     auto FpRegBank = getPartialMappingIdx(Ty1, /* isFP */ true);