1 //===- TernaryOp.cpp ------------------------------------------------------===// 2 // 3 // The MCLinker Project 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 #include "mcld/Script/TernaryOp.h" 10 11 #include "mcld/ADT/SizeTraits.h" 12 #include "mcld/Script/Operand.h" 13 14 namespace mcld { 15 16 //===----------------------------------------------------------------------===// 17 // TernaryOp 18 //===----------------------------------------------------------------------===// 19 template <> 20 IntOperand* TernaryOp<Operator::TERNARY_IF>::eval( 21 const Module& pModule, 22 const TargetLDBackend& pBackend) { 23 IntOperand* res = result(); 24 if (m_pOperand[0]->value()) 25 res->setValue(m_pOperand[1]->value()); 26 else 27 res->setValue(m_pOperand[2]->value()); 28 return res; 29 } 30 31 /* DATA_SEGMENT_ALIGN(maxpagesize, commonpagesize) */ 32 template <> 33 IntOperand* TernaryOp<Operator::DATA_SEGMENT_ALIGN>::eval( 34 const Module& pModule, 35 const TargetLDBackend& pBackend) { 36 /* This is equivalent to either 37 (ALIGN(maxpagesize) + (. & (maxpagesize - 1))) 38 or 39 (ALIGN(maxpagesize) + (. & (maxpagesize - commonpagesize))) 40 */ 41 IntOperand* res = result(); 42 uint64_t dot = m_pOperand[0]->value(); 43 uint64_t maxPageSize = m_pOperand[1]->value(); 44 uint64_t commonPageSize = m_pOperand[2]->value(); 45 uint64_t form1 = 0, form2 = 0; 46 47 alignAddress(dot, maxPageSize); 48 49 form1 = dot + (dot & (maxPageSize - 1)); 50 form2 = dot + (dot & (maxPageSize - commonPageSize)); 51 52 if (form1 <= form2) 53 res->setValue(form1); 54 else 55 res->setValue(form2); 56 return res; 57 } 58 59 } // namespace mcld 60
