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: 26 OS << ":upper16:"; 27 break; 28 case VK_ARM_LO16: 29 OS << ":lower16:"; 30 break; 31 case VK_ARM_HI_8_15: 32 OS << ":upper8_15:"; 33 break; 34 case VK_ARM_HI_0_7: 35 OS << ":upper0_7:"; 36 break; 37 case VK_ARM_LO_8_15: 38 OS << ":lower8_15:"; 39 break; 40 case VK_ARM_LO_0_7: 41 OS << ":lower0_7:"; 42 break; 43 } 44 45 const MCExpr *Expr = getSubExpr(); 46 if (Expr->getKind() != MCExpr::SymbolRef) 47 OS << '('; 48 Expr->print(OS, MAI); 49 if (Expr->getKind() != MCExpr::SymbolRef) 50 OS << ')'; 51 } 52 53 void ARMMCExpr::visitUsedExpr(MCStreamer &Streamer) const { 54 Streamer.visitUsedExpr(*getSubExpr()); 55 } 56