1 //===- lib/MC/MCValue.cpp - MCValue implementation ------------------------===// 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 "llvm/MC/MCValue.h" 11 #include "llvm/Config/llvm-config.h" 12 #include "llvm/MC/MCExpr.h" 13 #include "llvm/Support/Debug.h" 14 #include "llvm/Support/ErrorHandling.h" 15 #include "llvm/Support/raw_ostream.h" 16 17 using namespace llvm; 18 print(raw_ostream & OS) const19void MCValue::print(raw_ostream &OS) const { 20 if (isAbsolute()) { 21 OS << getConstant(); 22 return; 23 } 24 25 // FIXME: prints as a number, which isn't ideal. But the meaning will be 26 // target-specific anyway. 27 if (getRefKind()) 28 OS << ':' << getRefKind() << ':'; 29 30 OS << *getSymA(); 31 32 if (getSymB()) { 33 OS << " - "; 34 OS << *getSymB(); 35 } 36 37 if (getConstant()) 38 OS << " + " << getConstant(); 39 } 40 41 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) dump() const42LLVM_DUMP_METHOD void MCValue::dump() const { 43 print(dbgs()); 44 } 45 #endif 46 getAccessVariant() const47MCSymbolRefExpr::VariantKind MCValue::getAccessVariant() const { 48 const MCSymbolRefExpr *B = getSymB(); 49 if (B) { 50 if (B->getKind() != MCSymbolRefExpr::VK_None) 51 llvm_unreachable("unsupported"); 52 } 53 54 const MCSymbolRefExpr *A = getSymA(); 55 if (!A) 56 return MCSymbolRefExpr::VK_None; 57 58 MCSymbolRefExpr::VariantKind Kind = A->getKind(); 59 if (Kind == MCSymbolRefExpr::VK_WEAKREF) 60 return MCSymbolRefExpr::VK_None; 61 return Kind; 62 } 63