MCExpr.h revision d076482ab7e672d1d65a43809695e8d0d3995203
128c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar//===- MCExpr.h - Assembly Level Expressions --------------------*- C++ -*-===// 2fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar// 3fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar// The LLVM Compiler Infrastructure 4fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar// 5fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar// This file is distributed under the University of Illinois Open Source 6fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar// License. See LICENSE.TXT for details. 7fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar// 8fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar//===----------------------------------------------------------------------===// 9fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 1028c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar#ifndef LLVM_MC_MCEXPR_H 1128c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar#define LLVM_MC_MCEXPR_H 12fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 1385f2ecc697a8ca6c8cf08093054cbbb9d2060ccfRafael Espindola#include "llvm/ADT/DenseMap.h" 14fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar#include "llvm/Support/Casting.h" 151f6efa3996dd1929fbc129203ce5009b620e6969Michael J. Spencer#include "llvm/Support/DataTypes.h" 16fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 17fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarnamespace llvm { 18684c593d05db0bd277268fc9d8c05bce138c745aChris Lattnerclass MCAsmInfo; 19f82f4490b130eca55b08d605456a4ceacccf288aDaniel Dunbarclass MCAsmLayout; 2032a006e606742b1c5401e49607e33717bb5441f0Rafael Espindolaclass MCAssembler; 21fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarclass MCContext; 2285f2ecc697a8ca6c8cf08093054cbbb9d2060ccfRafael Espindolaclass MCSectionData; 23fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarclass MCSymbol; 2415d170709608e2f1efcada74c297c10c8c71fdcfDaniel Dunbarclass MCValue; 2587392fde1f261fea161b48886fafbedddb18dcceDaniel Dunbarclass raw_ostream; 264f3e7aa154577c86791908e73a9fec075fdea0baChris Lattnerclass StringRef; 2785f2ecc697a8ca6c8cf08093054cbbb9d2060ccfRafael Espindolatypedef DenseMap<const MCSectionData*, uint64_t> SectionAddrMap; 28fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 2928c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar/// MCExpr - Base class for the full range of assembler expressions which are 309643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar/// needed for parsing. 3128c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbarclass MCExpr { 32fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarpublic: 3328c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar enum ExprKind { 341aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Binary, ///< Binary expressions. 351aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Constant, ///< Constant expressions. 361aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar SymbolRef, ///< References to labels and assigned expressions. 375d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner Unary, ///< Unary expressions. 385d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner Target ///< Target specific expression. 39fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar }; 409643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 41fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarprivate: 4228c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar ExprKind Kind; 439643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 449643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCExpr(const MCExpr&); // DO NOT IMPLEMENT 459643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar void operator=(const MCExpr&); // DO NOT IMPLEMENT 469643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 47d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola bool EvaluateAsAbsolute(int64_t &Res, const MCAssembler *Asm, 48d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola const MCAsmLayout *Layout, 4985f2ecc697a8ca6c8cf08093054cbbb9d2060ccfRafael Espindola const SectionAddrMap *Addrs) const; 50fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarprotected: 51159f527cb269002de85e671023b9231a2c8792e9Dan Gohman explicit MCExpr(ExprKind _Kind) : Kind(_Kind) {} 529643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 53d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola bool EvaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm, 54d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola const MCAsmLayout *Layout, 5585f2ecc697a8ca6c8cf08093054cbbb9d2060ccfRafael Espindola const SectionAddrMap *Addrs, 56f230df9af4012f9510de664b6d62b128e26a5861Rafael Espindola bool InSet) const; 57fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarpublic: 589643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Accessors 599643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 60fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 6128c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar ExprKind getKind() const { return Kind; } 62fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 639643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 6487392fde1f261fea161b48886fafbedddb18dcceDaniel Dunbar /// @name Utility Methods 6587392fde1f261fea161b48886fafbedddb18dcceDaniel Dunbar /// @{ 6687392fde1f261fea161b48886fafbedddb18dcceDaniel Dunbar 678cb9a3b13f3226b7e741768b69d26ecd6b5231f1Chris Lattner void print(raw_ostream &OS) const; 6887392fde1f261fea161b48886fafbedddb18dcceDaniel Dunbar void dump() const; 6987392fde1f261fea161b48886fafbedddb18dcceDaniel Dunbar 7087392fde1f261fea161b48886fafbedddb18dcceDaniel Dunbar /// @} 719643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Expression Evaluation 729643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 739643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 74fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar /// EvaluateAsAbsolute - Try to evaluate the expression to an absolute value. 75fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar /// 7615d170709608e2f1efcada74c297c10c8c71fdcfDaniel Dunbar /// @param Res - The absolute value, if evaluation succeeds. 77f82f4490b130eca55b08d605456a4ceacccf288aDaniel Dunbar /// @param Layout - The assembler layout object to use for evaluating symbol 78f82f4490b130eca55b08d605456a4ceacccf288aDaniel Dunbar /// values. If not given, then only non-symbolic expressions will be 79f82f4490b130eca55b08d605456a4ceacccf288aDaniel Dunbar /// evaluated. 80fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar /// @result - True on success. 81d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola bool EvaluateAsAbsolute(int64_t &Res) const; 82d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola bool EvaluateAsAbsolute(int64_t &Res, const MCAssembler &Asm) const; 83d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola bool EvaluateAsAbsolute(int64_t &Res, const MCAsmLayout &Layout) const; 8485f2ecc697a8ca6c8cf08093054cbbb9d2060ccfRafael Espindola bool EvaluateAsAbsolute(int64_t &Res, const MCAsmLayout &Layout, 85d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola const SectionAddrMap &Addrs) const; 86fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 8715d170709608e2f1efcada74c297c10c8c71fdcfDaniel Dunbar /// EvaluateAsRelocatable - Try to evaluate the expression to a relocatable 881aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar /// value, i.e. an expression of the fixed form (a - b + constant). 8915d170709608e2f1efcada74c297c10c8c71fdcfDaniel Dunbar /// 9015d170709608e2f1efcada74c297c10c8c71fdcfDaniel Dunbar /// @param Res - The relocatable value, if evaluation succeeds. 91f82f4490b130eca55b08d605456a4ceacccf288aDaniel Dunbar /// @param Layout - The assembler layout object to use for evaluating values. 9215d170709608e2f1efcada74c297c10c8c71fdcfDaniel Dunbar /// @result - True on success. 93d076482ab7e672d1d65a43809695e8d0d3995203Rafael Espindola bool EvaluateAsRelocatable(MCValue &Res, const MCAsmLayout *Layout = 0) const; 9415d170709608e2f1efcada74c297c10c8c71fdcfDaniel Dunbar 959643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 969643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 9728c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar static bool classof(const MCExpr *) { return true; } 98fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar}; 99a0e36d55c495b3325805c659ac365b5faea84e34Daniel Dunbar 1008cb9a3b13f3226b7e741768b69d26ecd6b5231f1Chris Lattnerinline raw_ostream &operator<<(raw_ostream &OS, const MCExpr &E) { 1018cb9a3b13f3226b7e741768b69d26ecd6b5231f1Chris Lattner E.print(OS); 1028cb9a3b13f3226b7e741768b69d26ecd6b5231f1Chris Lattner return OS; 1038cb9a3b13f3226b7e741768b69d26ecd6b5231f1Chris Lattner} 104fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 10528c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar//// MCConstantExpr - Represent a constant integer expression. 10628c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbarclass MCConstantExpr : public MCExpr { 107fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar int64_t Value; 108fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 109159f527cb269002de85e671023b9231a2c8792e9Dan Gohman explicit MCConstantExpr(int64_t _Value) 11028c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar : MCExpr(MCExpr::Constant), Value(_Value) {} 1119643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 1129643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbarpublic: 1139643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Construction 1149643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 1159643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 1169643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCConstantExpr *Create(int64_t Value, MCContext &Ctx); 1179643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 1189643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 1199643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Accessors 1209643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 1219643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 122fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar int64_t getValue() const { return Value; } 123fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 1249643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 1259643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 1269643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static bool classof(const MCExpr *E) { 1279643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return E->getKind() == MCExpr::Constant; 128fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar } 12928c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar static bool classof(const MCConstantExpr *) { return true; } 130fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar}; 131fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 13228c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar/// MCSymbolRefExpr - Represent a reference to a symbol from inside an 1331aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar/// expression. 1341aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar/// 1351aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar/// A symbol reference in an expression may be a use of a label, a use of an 1361aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar/// assembler variable (defined constant), or constitute an implicit definition 1371aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar/// of the symbol as external. 13828c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbarclass MCSymbolRefExpr : public MCExpr { 1394e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbarpublic: 1404e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar enum VariantKind { 1414e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_None, 1424e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_Invalid, 1434e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar 1444e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_GOT, 1454e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_GOTOFF, 1464e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_GOTPCREL, 1474e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_GOTTPOFF, 1484e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_INDNTPOFF, 1494e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_NTPOFF, 150a0a2f8734cdfc19d44201b791a969bcdda96bb70Rafael Espindola VK_GOTNTPOFF, 1514e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_PLT, 1524e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VK_TLSGD, 153b4d1721eff7b43577e5f2e53f885973fb6c43683Rafael Espindola VK_TLSLD, 154a264f72d3fb9dec1427480fcf17ef3c746ea723aRafael Espindola VK_TLSLDM, 15518c1021ec108722506125926087b1e5fcfb28046Rafael Espindola VK_TPOFF, 1560cf15d61b7e3bf53f5a99f58ada37b93bc039559Rafael Espindola VK_DTPOFF, 1576135a96792ca05f6366e5dbaee6208e84589c47fChris Lattner VK_TLVP, // Mach-O thread local variable relocation 1582c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach VK_ARM_HI16, // The R_ARM_MOVT_ABS relocation (:upper16: in the .s file) 1592c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach VK_ARM_LO16, // The R_ARM_MOVW_ABS_NC relocation (:lower16: in the .w file) 1602c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach // FIXME: We'd really like to use the generic Kinds listed above for these. 1612c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach VK_ARM_PLT, // ARM-style PLT references. i.e., (PLT) instead of @PLT 1622c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach VK_ARM_TLSGD, // ditto for TLSGD, GOT, GOTOFF, TPOFF and GOTTPOFF 1632c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach VK_ARM_GOT, 1642c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach VK_ARM_GOTOFF, 1652c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach VK_ARM_TPOFF, 1662c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach VK_ARM_GOTTPOFF, 1676135a96792ca05f6366e5dbaee6208e84589c47fChris Lattner 1681e61e69d401045c54b15815f15a0fdb3ca56a9b5Chris Lattner VK_PPC_TOC, 1691e61e69d401045c54b15815f15a0fdb3ca56a9b5Chris Lattner VK_PPC_HA16, // ha16(symbol) 1701e61e69d401045c54b15815f15a0fdb3ca56a9b5Chris Lattner VK_PPC_LO16 // lo16(symbol) 1714e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar }; 1724e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar 1734e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbarprivate: 1744e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar /// The symbol being referenced. 1759643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar const MCSymbol *Symbol; 176fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 1774e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar /// The symbol reference modifier. 1784e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar const VariantKind Kind; 1794e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar 1804e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar explicit MCSymbolRefExpr(const MCSymbol *_Symbol, VariantKind _Kind) 1814e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar : MCExpr(MCExpr::SymbolRef), Symbol(_Symbol), Kind(_Kind) {} 182fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 1839643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbarpublic: 1849643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Construction 1859643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 1869643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 1874e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar static const MCSymbolRefExpr *Create(const MCSymbol *Symbol, MCContext &Ctx) { 1884e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar return MCSymbolRefExpr::Create(Symbol, VK_None, Ctx); 1894e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar } 1904e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar 1914e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar static const MCSymbolRefExpr *Create(const MCSymbol *Symbol, VariantKind Kind, 1924e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar MCContext &Ctx); 1934e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar static const MCSymbolRefExpr *Create(StringRef Name, VariantKind Kind, 1944e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar MCContext &Ctx); 19598cdab53c302a2d6686fa428c0e896b1fb195311Chris Lattner 1969643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 1979643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Accessors 1989643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 1999643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 2009643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar const MCSymbol &getSymbol() const { return *Symbol; } 2019643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 2024e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar VariantKind getKind() const { return Kind; } 2034e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar 2044e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar /// @} 2054e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar /// @name Static Utility Functions 2064e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar /// @{ 2074e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar 2084e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar static StringRef getVariantKindName(VariantKind Kind); 2094e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar 2104e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar static VariantKind getVariantKindForName(StringRef Name); 2114e815f8a8cae6c846cdca52420046cab902865deDaniel Dunbar 2129643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 2139643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 2149643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static bool classof(const MCExpr *E) { 2159643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return E->getKind() == MCExpr::SymbolRef; 216fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar } 21728c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar static bool classof(const MCSymbolRefExpr *) { return true; } 218fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar}; 219fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 22028c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar/// MCUnaryExpr - Unary assembler expressions. 22128c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbarclass MCUnaryExpr : public MCExpr { 222fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarpublic: 223fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar enum Opcode { 2241aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar LNot, ///< Logical negation. 2251aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Minus, ///< Unary minus. 2261aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Not, ///< Bitwise negation. 2271aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Plus ///< Unary plus. 228fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar }; 229fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 230fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarprivate: 231fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar Opcode Op; 2329643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar const MCExpr *Expr; 233fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 2349643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCUnaryExpr(Opcode _Op, const MCExpr *_Expr) 23528c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar : MCExpr(MCExpr::Unary), Op(_Op), Expr(_Expr) {} 2369643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 2379643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbarpublic: 2389643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Construction 2399643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 2409643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 2419643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCUnaryExpr *Create(Opcode Op, const MCExpr *Expr, 2429643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx); 2439643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCUnaryExpr *CreateLNot(const MCExpr *Expr, MCContext &Ctx) { 2449643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(LNot, Expr, Ctx); 2459643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 2469643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCUnaryExpr *CreateMinus(const MCExpr *Expr, MCContext &Ctx) { 2479643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Minus, Expr, Ctx); 2489643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 2499643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCUnaryExpr *CreateNot(const MCExpr *Expr, MCContext &Ctx) { 2509643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Not, Expr, Ctx); 251fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar } 2529643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCUnaryExpr *CreatePlus(const MCExpr *Expr, MCContext &Ctx) { 2539643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Plus, Expr, Ctx); 2549643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 2559643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 2569643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 2579643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Accessors 2589643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 259fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 2609643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// getOpcode - Get the kind of this unary expression. 261fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar Opcode getOpcode() const { return Op; } 262fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 2639643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// getSubExpr - Get the child of this unary expression. 2649643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar const MCExpr *getSubExpr() const { return Expr; } 265fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 2669643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 2679643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 2689643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static bool classof(const MCExpr *E) { 2699643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return E->getKind() == MCExpr::Unary; 270fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar } 27128c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar static bool classof(const MCUnaryExpr *) { return true; } 272fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar}; 273fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 27428c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar/// MCBinaryExpr - Binary assembler expressions. 27528c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbarclass MCBinaryExpr : public MCExpr { 276fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarpublic: 277fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar enum Opcode { 2781aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Add, ///< Addition. 2791aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar And, ///< Bitwise and. 280036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman Div, ///< Signed division. 2811aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar EQ, ///< Equality comparison. 282036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman GT, ///< Signed greater than comparison (result is either 0 or some 283036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman ///< target-specific non-zero value) 284036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman GTE, ///< Signed greater than or equal comparison (result is either 0 or 285036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman ///< some target-specific non-zero value). 2861aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar LAnd, ///< Logical and. 2871aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar LOr, ///< Logical or. 288036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman LT, ///< Signed less than comparison (result is either 0 or 289036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman ///< some target-specific non-zero value). 290036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman LTE, ///< Signed less than or equal comparison (result is either 0 or 291036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman ///< some target-specific non-zero value). 292036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman Mod, ///< Signed remainder. 2931aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Mul, ///< Multiplication. 2941aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar NE, ///< Inequality comparison. 2951aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Or, ///< Bitwise or. 296036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman Shl, ///< Shift left. 297036c130e90eb5c93b0dc0a70ad07b9343623c2a8Dan Gohman Shr, ///< Shift right (arithmetic or logical, depending on target) 2981aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Sub, ///< Subtraction. 2991aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar Xor ///< Bitwise exclusive or. 300fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar }; 301fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 302fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbarprivate: 303fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar Opcode Op; 3049643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar const MCExpr *LHS, *RHS; 305fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 3069643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCBinaryExpr(Opcode _Op, const MCExpr *_LHS, const MCExpr *_RHS) 30728c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar : MCExpr(MCExpr::Binary), Op(_Op), LHS(_LHS), RHS(_RHS) {} 3089643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 3099643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbarpublic: 3109643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Construction 3119643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 3129643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 3139643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *Create(Opcode Op, const MCExpr *LHS, 3149643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar const MCExpr *RHS, MCContext &Ctx); 3159643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateAdd(const MCExpr *LHS, const MCExpr *RHS, 3169643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3179643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Add, LHS, RHS, Ctx); 3189643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3199643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateAnd(const MCExpr *LHS, const MCExpr *RHS, 3209643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3219643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(And, LHS, RHS, Ctx); 3229643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3239643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateDiv(const MCExpr *LHS, const MCExpr *RHS, 3249643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3259643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Div, LHS, RHS, Ctx); 3269643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3279643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateEQ(const MCExpr *LHS, const MCExpr *RHS, 3289643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3299643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(EQ, LHS, RHS, Ctx); 3309643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3319643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateGT(const MCExpr *LHS, const MCExpr *RHS, 3329643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3339643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(GT, LHS, RHS, Ctx); 3349643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3359643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateGTE(const MCExpr *LHS, const MCExpr *RHS, 3369643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3379643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(GTE, LHS, RHS, Ctx); 3389643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3399643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateLAnd(const MCExpr *LHS, const MCExpr *RHS, 3409643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3419643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(LAnd, LHS, RHS, Ctx); 342fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar } 3439643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateLOr(const MCExpr *LHS, const MCExpr *RHS, 3449643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3459643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(LOr, LHS, RHS, Ctx); 3469643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3479643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateLT(const MCExpr *LHS, const MCExpr *RHS, 3489643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3499643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(LT, LHS, RHS, Ctx); 3509643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3519643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateLTE(const MCExpr *LHS, const MCExpr *RHS, 3529643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3539643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(LTE, LHS, RHS, Ctx); 3549643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3559643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateMod(const MCExpr *LHS, const MCExpr *RHS, 3569643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3579643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Mod, LHS, RHS, Ctx); 3589643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3599643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateMul(const MCExpr *LHS, const MCExpr *RHS, 3609643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3619643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Mul, LHS, RHS, Ctx); 3629643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3639643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateNE(const MCExpr *LHS, const MCExpr *RHS, 3649643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3659643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(NE, LHS, RHS, Ctx); 3669643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3679643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateOr(const MCExpr *LHS, const MCExpr *RHS, 3689643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3699643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Or, LHS, RHS, Ctx); 3709643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3719643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateShl(const MCExpr *LHS, const MCExpr *RHS, 3729643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3739643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Shl, LHS, RHS, Ctx); 3749643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3759643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateShr(const MCExpr *LHS, const MCExpr *RHS, 3769643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3779643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Shr, LHS, RHS, Ctx); 3789643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3799643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateSub(const MCExpr *LHS, const MCExpr *RHS, 3809643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3819643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Sub, LHS, RHS, Ctx); 3829643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3839643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static const MCBinaryExpr *CreateXor(const MCExpr *LHS, const MCExpr *RHS, 3849643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar MCContext &Ctx) { 3859643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return Create(Xor, LHS, RHS, Ctx); 3869643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar } 3879643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 3889643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 3899643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @name Accessors 3909643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @{ 391fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 3929643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// getOpcode - Get the kind of this binary expression. 393fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar Opcode getOpcode() const { return Op; } 394fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 3951aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar /// getLHS - Get the left-hand side expression of the binary operator. 3969643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar const MCExpr *getLHS() const { return LHS; } 3971aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar 3981aa14aac4198bca0f44e4adad42bf6238cbf9757Daniel Dunbar /// getRHS - Get the right-hand side expression of the binary operator. 3999643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar const MCExpr *getRHS() const { return RHS; } 4009643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar 4019643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar /// @} 402fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 4039643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar static bool classof(const MCExpr *E) { 4049643ac55142d40da404caa8e5fedfef2cd7b4afcDaniel Dunbar return E->getKind() == MCExpr::Binary; 405fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar } 40628c251b54b0b311749f07babe0f6909e71e877bcDaniel Dunbar static bool classof(const MCBinaryExpr *) { return true; } 407fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar}; 408fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 4095d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner/// MCTargetExpr - This is an extension point for target-specific MCExpr 4105d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner/// subclasses to implement. 4115d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner/// 4125d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner/// NOTE: All subclasses are required to have trivial destructors because 4135d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner/// MCExprs are bump pointer allocated and not destructed. 4145d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattnerclass MCTargetExpr : public MCExpr { 415df9c4380ee7e60c1de5cae32685b113170b1faa2Chris Lattner virtual void Anchor(); 4165d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattnerprotected: 4175d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner MCTargetExpr() : MCExpr(Target) {} 418e3e7a369f20af66a96830d8bfe52668c9e2e1fa1Chris Lattner virtual ~MCTargetExpr() {} 4195d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattnerpublic: 420a0e36d55c495b3325805c659ac365b5faea84e34Daniel Dunbar 4215d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner virtual void PrintImpl(raw_ostream &OS) const = 0; 422f82f4490b130eca55b08d605456a4ceacccf288aDaniel Dunbar virtual bool EvaluateAsRelocatableImpl(MCValue &Res, 423a0e36d55c495b3325805c659ac365b5faea84e34Daniel Dunbar const MCAsmLayout *Layout) const = 0; 424a0e36d55c495b3325805c659ac365b5faea84e34Daniel Dunbar 4255d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner 4265d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner static bool classof(const MCExpr *E) { 4275d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner return E->getKind() == MCExpr::Target; 4285d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner } 4295d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner static bool classof(const MCTargetExpr *) { return true; } 4305d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner}; 4315d917a8952c09a345180ec36f0df4ee5dd5eddeaChris Lattner 432fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar} // end namespace llvm 433fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar 434fc6877aec9826fa830204d49eba7fac7412b841eDaniel Dunbar#endif 435