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/MC/MCExpr.h" 12 #include "llvm/Support/Debug.h" 13 #include "llvm/Support/ErrorHandling.h" 14 #include "llvm/Support/raw_ostream.h" 15 16 using namespace llvm; 17 18 void MCValue::print(raw_ostream &OS, const MCAsmInfo *MAI) const { 19 if (isAbsolute()) { 20 OS << getConstant(); 21 return; 22 } 23 24 // FIXME: prints as a number, which isn't ideal. But the meaning will be 25 // target-specific anyway. 26 if (getRefKind()) 27 OS << ':' << getRefKind() << ':'; 28 29 getSymA()->print(OS); 30 31 if (getSymB()) { 32 OS << " - "; 33 getSymB()->print(OS); 34 } 35 36 if (getConstant()) 37 OS << " + " << getConstant(); 38 } 39 40 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) 41 void MCValue::dump() const { 42 print(dbgs(), nullptr); 43 } 44 #endif 45 46 MCSymbolRefExpr::VariantKind MCValue::getAccessVariant() const { 47 const MCSymbolRefExpr *B = getSymB(); 48 if (B) { 49 if (B->getKind() != MCSymbolRefExpr::VK_None) 50 llvm_unreachable("unsupported"); 51 } 52 53 const MCSymbolRefExpr *A = getSymA(); 54 if (!A) 55 return MCSymbolRefExpr::VK_None; 56 57 MCSymbolRefExpr::VariantKind Kind = A->getKind(); 58 if (Kind == MCSymbolRefExpr::VK_WEAKREF) 59 return MCSymbolRefExpr::VK_None; 60 return Kind; 61 } 62
