1 //===-- ARMMCExpr.cpp - ARM specific MC expression classes ----------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "ARMMCExpr.h" 11 #include "llvm/MC/MCAssembler.h" 12 #include "llvm/MC/MCContext.h" 13 using namespace llvm; 14 15 #define DEBUG_TYPE "armmcexpr" 16 17 const ARMMCExpr* 18 ARMMCExpr::Create(VariantKind Kind, const MCExpr *Expr, 19 MCContext &Ctx) { 20 return new (Ctx) ARMMCExpr(Kind, Expr); 21 } 22 23 void ARMMCExpr::PrintImpl(raw_ostream &OS) const { 24 switch (Kind) { 25 default: llvm_unreachable("Invalid kind!"); 26 case VK_ARM_HI16: OS << ":upper16:"; break; 27 case VK_ARM_LO16: OS << ":lower16:"; break; 28 } 29 30 const MCExpr *Expr = getSubExpr(); 31 if (Expr->getKind() != MCExpr::SymbolRef) 32 OS << '('; 33 Expr->print(OS); 34 if (Expr->getKind() != MCExpr::SymbolRef) 35 OS << ')'; 36 } 37 38 bool 39 ARMMCExpr::EvaluateAsRelocatableImpl(MCValue &Res, 40 const MCAsmLayout *Layout) const { 41 return false; 42 } 43 44 void ARMMCExpr::visitUsedExpr(MCStreamer &Streamer) const { 45 Streamer.visitUsedExpr(*getSubExpr()); 46 } 47
