1 //===-- ARMMCExpr.cpp - ARM specific MC expression classes ----------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "ARMMCExpr.h" 10 #include "llvm/MC/MCContext.h" 11 #include "llvm/MC/MCStreamer.h" 12 using namespace llvm; 13 14 #define DEBUG_TYPE "armmcexpr" 15 16 const ARMMCExpr* 17 ARMMCExpr::create(VariantKind Kind, const MCExpr *Expr, 18 MCContext &Ctx) { 19 return new (Ctx) ARMMCExpr(Kind, Expr); 20 } 21 22 void ARMMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const { 23 switch (Kind) { 24 default: llvm_unreachable("Invalid kind!"); 25 case VK_ARM_HI16: OS << ":upper16:"; break; 26 case VK_ARM_LO16: OS << ":lower16:"; break; 27 } 28 29 const MCExpr *Expr = getSubExpr(); 30 if (Expr->getKind() != MCExpr::SymbolRef) 31 OS << '('; 32 Expr->print(OS, MAI); 33 if (Expr->getKind() != MCExpr::SymbolRef) 34 OS << ')'; 35 } 36 37 void ARMMCExpr::visitUsedExpr(MCStreamer &Streamer) const { 38 Streamer.visitUsedExpr(*getSubExpr()); 39 } 40