X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=utils%2FTableGen%2FX86DisassemblerTables.h;h=01aeaaf0bf90fe12d2c95aee17ae44fca4621d78;hb=7a88b655ccad0f128ea1a5e8ca433a8827a24ff3;hp=d16ebfca419e3c0430cae62f6cb939fc5d7c6185;hpb=7a2bdde0a0eebcd2125055e0eacaca040f0b766c;p=oota-llvm.git diff --git a/utils/TableGen/X86DisassemblerTables.h b/utils/TableGen/X86DisassemblerTables.h index d16ebfca419..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 { @@ -42,13 +40,13 @@ private: /// [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, @@ -64,7 +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: @@ -77,12 +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 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 */ /// ... @@ -100,7 +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: /// @@ -129,8 +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 = { @@ -163,10 +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: @@ -187,17 +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: @@ -213,7 +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(). /// @@ -225,7 +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. @@ -241,14 +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. @@ -260,28 +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; }