X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=utils%2FTableGen%2FX86DisassemblerTables.h;h=01aeaaf0bf90fe12d2c95aee17ae44fca4621d78;hb=86779ee177c11863f74a9aecb445fdd8659557e0;hp=08eba019c09a79aae5970e0d0391a5aca95867a7;hpb=8ed9f51663bc5533f36ca62e5668ae08e9a1313f;p=oota-llvm.git diff --git a/utils/TableGen/X86DisassemblerTables.h b/utils/TableGen/X86DisassemblerTables.h index 08eba019c09..01aeaaf0bf9 100644 --- a/utils/TableGen/X86DisassemblerTables.h +++ b/utils/TableGen/X86DisassemblerTables.h @@ -19,9 +19,7 @@ #include "X86DisassemblerShared.h" #include "X86ModRMFilters.h" - #include "llvm/Support/raw_ostream.h" - #include namespace llvm { @@ -39,14 +37,16 @@ private: /// [1] two-byte opcodes of the form 0f __ /// [2] three-byte opcodes of the form 0f 38 __ /// [3] three-byte opcodes of the form 0f 3a __ - ContextDecision* Tables[4]; - + /// [4] three-byte opcodes of the form 0f a6 __ + /// [5] three-byte opcodes of the form 0f a7 __ + ContextDecision* Tables[6]; + /// The instruction information table std::vector InstructionSpecifiers; - + /// True if there are primary decode conflicts in the instruction set bool HasConflicts; - + /// emitOneID - Emits a table entry for a single instruction entry, at the /// innermost level of the structure hierarchy. The entry is printed out /// in the format "nnnn, /* MNEMONIC */" where nnnn is the ID in decimal, @@ -62,7 +62,7 @@ private: uint32_t &i, InstrUID id, bool addComma) const; - + /// emitModRMDecision - Emits a table of entries corresponding to a single /// ModR/M decision. Compacts the ModR/M decision if possible. ModR/M /// decisions are printed as: @@ -75,12 +75,12 @@ private: /// where nnnn is a unique ID for the corresponding table of IDs. /// TYPE indicates whether the table has one entry that is the same /// regardless of ModR/M byte, two entries - one for bytes 0x00-0xbf and one - /// for bytes 0xc0-0xff -, or 256 entries, one for each possible byte. + /// for bytes 0xc0-0xff -, or 256 entries, one for each possible byte. /// nnnn is the number of a table for looking up these values. The tables - /// are writen separately so that tables consisting entirely of zeros will + /// are written separately so that tables consisting entirely of zeros will /// not be duplicated. (These all have the name modRMEmptyTable.) A table /// is printed as: - /// + /// /// InstrUID modRMTablennnn[k] = { /// nnnn, /* MNEMONIC */ /// ... @@ -98,7 +98,7 @@ private: uint32_t &i1, uint32_t &i2, ModRMDecision &decision) const; - + /// emitOpcodeDecision - Emits an OpcodeDecision and all its subsidiary ModR/M /// decisions. An OpcodeDecision is printed as: /// @@ -127,8 +127,8 @@ private: uint32_t &i1, uint32_t &i2, OpcodeDecision &decision) const; - - /// emitContextDecision - Emits a ContextDecision and all its subsidiary + + /// emitContextDecision - Emits a ContextDecision and all its subsidiary /// Opcode and ModRMDecisions. A ContextDecision is printed as: /// /// struct ContextDecision NAME = { @@ -141,8 +141,9 @@ private: /// } /// } /// - /// NAME is the name of the ContextDecision (typically one of the four names - /// ONEBYTE_SYM, TWOBYTE_SYM, THREEBYTE38_SYM, and THREEBYTE3A_SYM from + /// NAME is the name of the ContextDecision (typically one of the four names + /// ONEBYTE_SYM, TWOBYTE_SYM, THREEBYTE38_SYM, THREEBYTE3A_SYM, + /// THREEBYTEA6_SYM, and THREEBYTEA7_SYM from /// X86DisassemblerDecoderCommon.h). /// IC is one of the contexts in InstructionContext. There is an opcode /// decision for each possible context. @@ -160,10 +161,10 @@ private: void emitContextDecision(raw_ostream &o1, raw_ostream &o2, uint32_t &i1, - uint32_t &i2, + uint32_t &i2, ContextDecision &decision, const char* name) const; - + /// emitInstructionInfo - Prints the instruction specifier table, which has /// one entry for each instruction, and contains name and operand /// information. This table is printed as: @@ -184,17 +185,17 @@ private: /// }; /// /// k is the total number of instructions. - /// nnnn is the ID of the current instruction (0-based). This table + /// nnnn is the ID of the current instruction (0-based). This table /// includes entries for non-instructions like PHINODE. /// 0xnn is the lowest possible opcode for the current instruction, used for /// AddRegFrm instructions to compute the operand's value. /// ENCODING and TYPE describe the encoding and type for a single operand. /// - /// @param o - The output stream to which the instruction table should be + /// @param o - The output stream to which the instruction table should be /// written. /// @param i - The indent level for use with the stream. void emitInstructionInfo(raw_ostream &o, uint32_t &i) const; - + /// emitContextTable - Prints the table that is used to translate from an /// instruction attribute mask to an instruction context. This table is /// printed as: @@ -210,7 +211,7 @@ private: /// @param o - The output stream to which the context table should be written. /// @param i - The indent level for use with the stream. void emitContextTable(raw_ostream &o, uint32_t &i) const; - + /// emitContextDecisions - Prints all four ContextDecision structures using /// emitContextDecision(). /// @@ -222,7 +223,7 @@ private: void emitContextDecisions(raw_ostream &o1, raw_ostream &o2, uint32_t &i1, - uint32_t &i2) const; + uint32_t &i2) const; /// setTableFields - Uses a ModRMFilter to set the appropriate entries in a /// ModRMDecision to refer to a particular instruction ID. @@ -238,14 +239,14 @@ private: public: /// Constructor - Allocates space for the class decisions and clears them. DisassemblerTables(); - + ~DisassemblerTables(); - + /// emit - Emits the instruction table, context table, and class decisions. /// /// @param o - The output stream to print the tables to. void emit(raw_ostream &o) const; - + /// setTableFields - Uses the opcode type, instruction context, opcode, and a /// ModRMFilter as criteria to set a particular set of entries in the /// decode tables to point to a specific uid. @@ -257,28 +258,32 @@ public: /// @param filter - The ModRMFilter that decides which ModR/M byte values /// correspond to the desired instruction. /// @param uid - The unique ID of the instruction. + /// @param is32bit - Instructon is only 32-bit + /// @param ignoresVEX_L - Instruction ignores VEX.L void setTableFields(OpcodeType type, InstructionContext insnContext, uint8_t opcode, const ModRMFilter &filter, - InstrUID uid); - + InstrUID uid, + bool is32bit, + bool ignoresVEX_L); + /// specForUID - Returns the instruction specifier for a given unique /// instruction ID. Used when resolving collisions. /// /// @param uid - The unique ID of the instruction. - /// @return - A reference to the instruction specifier. + /// @return - A reference to the instruction specifier. InstructionSpecifier& specForUID(InstrUID uid) { if (uid >= InstructionSpecifiers.size()) InstructionSpecifiers.resize(uid + 1); - + return InstructionSpecifiers[uid]; } - + // hasConflicts - Reports whether there were primary decode conflicts // from any instructions added to the tables. // @return - true if there were; false otherwise. - + bool hasConflicts() { return HasConflicts; }