const MCExpr *Diff =
MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(LHS, Context),
MCSymbolRefExpr::Create(RHS, Context), Context);
const MCExpr *Diff =
MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(LHS, Context),
MCSymbolRefExpr::Create(RHS, Context), Context);