SelectionDAGNodes.h revision 404cb4f9fa2df50eac4d84b8a77c84a92188c6d5
163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner//===-- llvm/CodeGen/SelectionDAGNodes.h - SelectionDAG Nodes ---*- C++ -*-===// 2ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// The LLVM Compiler Infrastructure 463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// 563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// This file was developed by the LLVM research group and is distributed under 663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// the University of Illinois Open Source License. See LICENSE.TXT for details. 7ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner//===----------------------------------------------------------------------===// 9ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 1063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// This file declares the SDNode class and derived classes, which are used to 1163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// represent the nodes and operations present in a SelectionDAG. These nodes 1263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// and operations are machine code level operations, with some similarities to 1363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// the GCC RTL representation. 1463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// 1563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// Clients should include the SelectionDAG.h file instead of this file directly. 1663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// 1763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner//===----------------------------------------------------------------------===// 1863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#ifndef LLVM_CODEGEN_SELECTIONDAGNODES_H 2063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#define LLVM_CODEGEN_SELECTIONDAGNODES_H 2163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 2263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#include "llvm/CodeGen/ValueTypes.h" 232d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth#include "llvm/Value.h" 241080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner#include "llvm/ADT/GraphTraits.h" 251080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner#include "llvm/ADT/iterator" 2639931a3dbac1aa2fe2ec14f26001c8c29102940cJeff Cohen#include "llvm/Support/DataTypes.h" 2763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#include <cassert> 2863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#include <vector> 2963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnernamespace llvm { 3163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass SelectionDAG; 3363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass GlobalValue; 3463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass MachineBasicBlock; 3563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass SDNode; 3663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnertemplate <typename T> struct simplify_type; 37b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate <typename T> struct ilist_traits; 38b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate<typename NodeTy, typename Traits> class iplist; 39b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate<typename NodeTy> class ilist_iterator; 4063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 4163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// ISD namespace - This namespace contains an enum which represents all of the 4263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SelectionDAG node types and value types. 4363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 4463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnernamespace ISD { 4563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner //===--------------------------------------------------------------------===// 4663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// ISD::NodeType enum - This enum defines all of the operators valid in a 4763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// SelectionDAG. 4863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 4963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner enum NodeType { 508a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // EntryToken - This is the marker used to indicate the start of the region. 518a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner EntryToken, 528a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner 538c4bde36a339b1c538002e819daff84caae4cbadReid Spencer // Token factor - This node takes multiple tokens as input and produces a 548a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // single token result. This is used to represent the fact that the operand 558a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // operators are independent of each other. 568a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner TokenFactor, 57f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman 58f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // AssertSext, AssertZext - These nodes record if a register contains a 59f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // value that has already been zero or sign extended from a narrower type. 60f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // These nodes take two operands. The first is the node that has already 61f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // been extended, and the second is a value type node indicating the width 62f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // of the extension 63f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman AssertSext, AssertZext, 64ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 658a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // Various leaf nodes. 6647725d059b259f8a0c145478300c9e9caa006b59Chris Lattner Constant, ConstantFP, STRING, 6747725d059b259f8a0c145478300c9e9caa006b59Chris Lattner GlobalAddress, FrameIndex, ConstantPool, 68d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner BasicBlock, ExternalSymbol, VALUETYPE, CONDCODE, Register, 69056f9f61d071c6c583951678f2bf543a1316efccChris Lattner 708cfa57b1b4eade4e0101195b2f94ab288cd03563Nate Begeman // ConstantVec works like Constant or ConstantFP, except that it is not a 718cfa57b1b4eade4e0101195b2f94ab288cd03563Nate Begeman // leaf node. All operands are either Constant or ConstantFP nodes. 728cfa57b1b4eade4e0101195b2f94ab288cd03563Nate Begeman ConstantVec, 738cfa57b1b4eade4e0101195b2f94ab288cd03563Nate Begeman 74ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner // TargetConstant* - Like Constant*, but the DAG does not do any folding or 75ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner // simplification of the constant. 76056f9f61d071c6c583951678f2bf543a1316efccChris Lattner TargetConstant, 77ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner TargetConstantFP, 78ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner TargetConstantVec, 79f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner 80f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // TargetGlobalAddress - Like GlobalAddress, but the DAG does no folding or 81f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // anything else with this node, and this is valid in the target-specific 82f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // dag, turning into a GlobalAddress operand. 83f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner TargetGlobalAddress, 84afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner TargetFrameIndex, 85aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner TargetConstantPool, 862a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth TargetExternalSymbol, 8763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 88d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner // CopyToReg - This node has three operands: a chain, a register number to 89d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner // set to this value, and a value. 9063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CopyToReg, 9163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 9263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // CopyFromReg - This node indicates that the input value is a virtual or 9363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // physical register that is defined outside of the scope of this 9418c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner // SelectionDAG. The register is available from the RegSDNode object. 9563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CopyFromReg, 9663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 97fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman // UNDEF - An undefined node 98fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman UNDEF, 99fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman 10063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // EXTRACT_ELEMENT - This is used to get the first or second (determined by 10163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // a Constant, which is required to be operand #1), element of the aggregate 10263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // value specified as operand #0. This is only for use before legalization, 10363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // for values that will be broken into multiple registers. 10463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner EXTRACT_ELEMENT, 10563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 10663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BUILD_PAIR - This is the opposite of EXTRACT_ELEMENT in some ways. Given 10763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // two values of the same integer value type, this produces a value twice as 10863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // big. Like EXTRACT_ELEMENT, this can only be used before legalization. 10963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BUILD_PAIR, 110006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner 111006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // MERGE_VALUES - This node takes multiple discrete operands and returns 112006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // them all as its individual results. This nodes has exactly the same 113006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // number of inputs and outputs, and is only valid before legalization. 114006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // This node is useful for some pieces of the code generator that want to 115006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // think about a single node with multiple results, not multiple nodes. 116006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner MERGE_VALUES, 11763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 118615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner // Simple integer binary arithmetic operators. 119bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner ADD, SUB, MUL, SDIV, UDIV, SREM, UREM, 120615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner 121551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Carry-setting nodes for multiple precision addition and subtraction. 122551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // These nodes take two operands of the same value type, and produce two 123551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // results. The first result is the normal add or sub result, the second 124551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // result is the carry flag result. 125551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman ADDC, SUBC, 126551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 127551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Carry-using nodes for multiple precision addition and subtraction. These 128551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // nodes take three operands: The first two are the normal lhs and rhs to 129551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // the add or sub, and the third is the input carry flag. These nodes 130551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // produce two results; the normal result of the add or sub, and the output 131551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // carry flag. These nodes both read and write a carry flag to allow them 132551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // to them to be chained together for add and sub of arbitrarily large 133551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // values. 134551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman ADDE, SUBE, 135551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 136615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner // Simple binary floating point operators. 137615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner FADD, FSUB, FMUL, FDIV, FREM, 1385fbb5d2459a5410590f285250faa604576308a93Nate Begeman 1395fbb5d2459a5410590f285250faa604576308a93Nate Begeman // Simple abstract vector operators. Unlike the integer and floating point 1405fbb5d2459a5410590f285250faa604576308a93Nate Begeman // binary operators, these nodes also take two additional operands: 1415fbb5d2459a5410590f285250faa604576308a93Nate Begeman // a constant element count, and a value type node indicating the type of 142ab48be377298bd509427a29e174cf4e305138819Nate Begeman // the elements. The order is op0, op1, count, type. All vector opcodes, 143ab48be377298bd509427a29e174cf4e305138819Nate Begeman // including VLOAD, must currently have count and type as their 3rd and 4th 144ab48be377298bd509427a29e174cf4e305138819Nate Begeman // arguments. 1455fbb5d2459a5410590f285250faa604576308a93Nate Begeman VADD, VSUB, VMUL, 146bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner 147bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner // MULHU/MULHS - Multiply high - Multiply two integers of type iN, producing 148bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner // an unsigned/signed value of type i[2*n], then return the top part. 149bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner MULHU, MULHS, 15063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 15135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // Bitwise operators - logical and, logical or, logical xor, shift left, 15235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // shift right algebraic (shift in sign bits), shift right logical (shift in 15335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // zeroes), rotate left, rotate right, and byteswap. 15435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman AND, OR, XOR, SHL, SRA, SRL, ROTL, ROTR, BSWAP, 15563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 156691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Counting operators 157691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth CTTZ, CTLZ, CTPOP, 158691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 1599373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // Select 1609373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SELECT, 1619373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 1629373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // Select with condition operator - This selects between a true value and 1639373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // a false value (ops #2 and #3) based on the boolean result of comparing 1649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // the lhs and rhs (ops #0 and #1) of a conditional expression with the 1659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // condition code in op #4, a CondCodeSDNode. 1669373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SELECT_CC, 16763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 16863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // SetCC operator - This evaluates to a boolean (i1) true value if the 1697cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // condition is true. The operands to this are the left and right operands 1707cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // to compare (ops #0, and #1) and the condition code to compare them with 1717cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // (op #2) as a CondCodeSDNode. 17263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETCC, 17363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 17414c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded 17514c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // integer shift operations, just like ADD/SUB_PARTS. The operation 17614c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // ordering is: 1776b8f2d649c1e96e0222be9de1e5d6c79e3eef021Chris Lattner // [Lo,Hi] = op [LoLHS,HiLHS], Amt 17814c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner SHL_PARTS, SRA_PARTS, SRL_PARTS, 17914c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner 18063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Conversion operators. These are all single input single output 18163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // operations. For all of these, the result type must be strictly 18263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // wider or narrower (depending on the operation) than the source 18363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // type. 18463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 18563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // SIGN_EXTEND - Used for integer types, replicating the sign bit 18663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // into new bits. 18763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SIGN_EXTEND, 18863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 18963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // ZERO_EXTEND - Used for integer types, zeroing the new bits. 19063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner ZERO_EXTEND, 19163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1927e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner // ANY_EXTEND - Used for integer types. The high bits are undefined. 1937e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner ANY_EXTEND, 1947e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner 19563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // TRUNCATE - Completely drop the high bits. 19663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner TRUNCATE, 19763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1981645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // [SU]INT_TO_FP - These operators convert integers (whose interpreted sign 1991645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // depends on the first letter) to floating point. 2001645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner SINT_TO_FP, 2011645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner UINT_TO_FP, 2021645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner 203ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // SIGN_EXTEND_INREG - This operator atomically performs a SHL/SRA pair to 204ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // sign extend a small value in a large integer register (e.g. sign 205ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // extending the low 8 bits of a 32-bit register to fill the top 24 bits 20615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // with the 7th bit). The size of the smaller type is indicated by the 1th 20715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // operand, a ValueType node. 208859157daee6a4b49e99921832e1dde065167b317Chris Lattner SIGN_EXTEND_INREG, 209859157daee6a4b49e99921832e1dde065167b317Chris Lattner 2101645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // FP_TO_[US]INT - Convert a floating point value to a signed or unsigned 2111645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // integer. 2121645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner FP_TO_SINT, 2131645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner FP_TO_UINT, 2141645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner 21563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // FP_ROUND - Perform a rounding operation from the current 216859157daee6a4b49e99921832e1dde065167b317Chris Lattner // precision down to the specified precision (currently always 64->32). 21763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner FP_ROUND, 21863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 219859157daee6a4b49e99921832e1dde065167b317Chris Lattner // FP_ROUND_INREG - This operator takes a floating point register, and 220859157daee6a4b49e99921832e1dde065167b317Chris Lattner // rounds it to a floating point value. It then promotes it and returns it 221859157daee6a4b49e99921832e1dde065167b317Chris Lattner // in a register of the same size. This operation effectively just discards 22215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // excess precision. The type to round down to is specified by the 1th 22315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // operation, a VTSDNode (currently always 64->32->64). 224859157daee6a4b49e99921832e1dde065167b317Chris Lattner FP_ROUND_INREG, 225859157daee6a4b49e99921832e1dde065167b317Chris Lattner 22663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // FP_EXTEND - Extend a smaller FP type into a larger FP type. 22763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner FP_EXTEND, 22863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 2291ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner // BIT_CONVERT - Theis operator converts between integer and FP values, as 2301ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner // if one was stored to memory as integer and the other was loaded from the 23180f55abf009c86bc03821e10746832f88f8a735fChris Lattner // same address (or equivalently for vector format conversions, etc). The 23280f55abf009c86bc03821e10746832f88f8a735fChris Lattner // source and result are required to have the same bit size (e.g. 23380f55abf009c86bc03821e10746832f88f8a735fChris Lattner // f32 <-> i32). This can also be used for int-to-int or fp-to-fp 23480f55abf009c86bc03821e10746832f88f8a735fChris Lattner // conversions, but that is a noop, deleted by getNode(). 2351ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner BIT_CONVERT, 2361ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner 2377f64464ff100bcb7661b65c74c13dc88e83eb65bChris Lattner // FNEG, FABS, FSQRT, FSIN, FCOS - Perform unary floating point negation, 2387f64464ff100bcb7661b65c74c13dc88e83eb65bChris Lattner // absolute value, square root, sine and cosine operations. 2397f64464ff100bcb7661b65c74c13dc88e83eb65bChris Lattner FNEG, FABS, FSQRT, FSIN, FCOS, 2407366fd39727180a3261dd99e3797f89979d74e66Chris Lattner 2411cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // Other operators. LOAD and STORE have token chains as their first 242f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // operand, then the same operands as an LLVM load/store instruction, then a 243f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // SRCVALUE node that provides alias analysis information. 24463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner LOAD, STORE, 2455fbb5d2459a5410590f285250faa604576308a93Nate Begeman 2465fbb5d2459a5410590f285250faa604576308a93Nate Begeman // Abstract vector version of LOAD. VLOAD has a token chain as the first 2475fbb5d2459a5410590f285250faa604576308a93Nate Begeman // operand, followed by a pointer operand, a constant element count, a value 2485fbb5d2459a5410590f285250faa604576308a93Nate Begeman // type node indicating the type of the elements, and a SRCVALUE node. 2495fbb5d2459a5410590f285250faa604576308a93Nate Begeman VLOAD, 25063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 2515f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // EXTLOAD, SEXTLOAD, ZEXTLOAD - These three operators all load a value from 2525f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // memory and extend them to a larger value (e.g. load a byte into a word 2535f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // register). All three of these have four operands, a token chain, a 2545f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // pointer to load from, a SRCVALUE for alias analysis, and a VALUETYPE node 2555f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // indicating the type to load. 2561cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // 2571cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // SEXTLOAD loads the integer operand and sign extends it to a larger 2581cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // integer result type. 2591cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // ZEXTLOAD loads the integer operand and zero extends it to a larger 2601cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // integer result type. 261ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman // EXTLOAD is used for two things: floating point extending loads, and 2621cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // integer extending loads where it doesn't matter what the high 2631cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // bits are set to. The code generator is allowed to codegen this 2641cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // into whichever operation is more efficient. 2651cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner EXTLOAD, SEXTLOAD, ZEXTLOAD, 2661cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 2671cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // TRUNCSTORE - This operators truncates (for integer) or rounds (for FP) a 2681cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // value and stores it to memory in one operation. This can be used for 269f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // either integer or floating point operands. The first four operands of 270f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // this are the same as a standard store. The fifth is the ValueType to 271f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // store it as (which will be smaller than the source value). 2721cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner TRUNCSTORE, 2731cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 27463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // DYNAMIC_STACKALLOC - Allocate some number of bytes on the stack aligned 27563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // to a specified boundary. The first operand is the token chain, the 27663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // second is the number of bytes to allocate, and the third is the alignment 27774fe063e90045931eefaba561730e6a9175ced78Chris Lattner // boundary. The size is guaranteed to be a multiple of the stack 27874fe063e90045931eefaba561730e6a9175ced78Chris Lattner // alignment, and the alignment is guaranteed to be bigger than the stack 27974fe063e90045931eefaba561730e6a9175ced78Chris Lattner // alignment (if required) or 0 to get standard stack alignment. 28063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner DYNAMIC_STACKALLOC, 28163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 28263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Control flow instructions. These all have token chains. 283ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 28463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BR - Unconditional branch. The first operand is the chain 28563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // operand, the second is the MBB to branch to. 28663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BR, 28763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 28863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BRCOND - Conditional branch. The first operand is the chain, 28963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // the second is the condition, the third is the block to branch 29063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // to if the condition is true. 29163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BRCOND, 29263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 2931df633821b9994a132ea329e5b04a9a2d0580de3Chris Lattner // BRCONDTWOWAY - Two-way conditional branch. The first operand is the 2941df633821b9994a132ea329e5b04a9a2d0580de3Chris Lattner // chain, the second is the condition, the third is the block to branch to 2951df633821b9994a132ea329e5b04a9a2d0580de3Chris Lattner // if true, and the forth is the block to branch to if false. Targets 2961df633821b9994a132ea329e5b04a9a2d0580de3Chris Lattner // usually do not implement this, preferring to have legalize demote the 2971df633821b9994a132ea329e5b04a9a2d0580de3Chris Lattner // operation to BRCOND/BR pairs when necessary. 2981df633821b9994a132ea329e5b04a9a2d0580de3Chris Lattner BRCONDTWOWAY, 2991df633821b9994a132ea329e5b04a9a2d0580de3Chris Lattner 3007cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // BR_CC - Conditional branch. The behavior is like that of SELECT_CC, in 3017cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // that the condition is represented as condition code, and two nodes to 3027cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // compare, rather than as a combined SetCC node. The operands in order are 3037cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // chain, cc, lhs, rhs, block to branch to if condition is true. 3047cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman BR_CC, 3057cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 3067cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // BRTWOWAY_CC - Two-way conditional branch. The operands in order are 3077cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // chain, cc, lhs, rhs, block to branch to if condition is true, block to 3087cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // branch to if condition is false. Targets usually do not implement this, 3097cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // preferring to have legalize demote the operation to BRCOND/BR pairs. 3107cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman BRTWOWAY_CC, 3117cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 31263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // RET - Return from function. The first operand is the chain, 31363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // and any subsequent operands are the return values for the 31463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // function. This operation can have variable number of operands. 31563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner RET, 31663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3177572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // INLINEASM - Represents an inline asm block. This node always has two 3187572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // return values: a chain and a flag result. The inputs are as follows: 3197572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #0 : Input chain. 3207572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #1 : a ExternalSymbolSDNode with a pointer to the asm string. 3217572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #2n+2: A RegisterNode. 3227572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #2n+3: A TargetConstant, indicating if the reg is a use/def 3237572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #last: Optional, an incoming flag. 3247572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner INLINEASM, 325ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner 3265a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // STACKSAVE - STACKSAVE has one operand, an input chain. It produces a 3275a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // value, the same type as the pointer type for the system, and an output 3285a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // chain. 3295a67afc118d47a0061ca9809c763451ea3125306Chris Lattner STACKSAVE, 3305a67afc118d47a0061ca9809c763451ea3125306Chris Lattner 3315a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // STACKRESTORE has two operands, an input chain and a pointer to restore to 3325a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // it returns an output chain. 3335a67afc118d47a0061ca9809c763451ea3125306Chris Lattner STACKRESTORE, 3345a67afc118d47a0061ca9809c763451ea3125306Chris Lattner 335ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner // MEMSET/MEMCPY/MEMMOVE - The first operand is the chain, and the rest 336ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner // correspond to the operands of the LLVM intrinsic functions. The only 337ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner // result is a token chain. The alignment argument is guaranteed to be a 338ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner // Constant node. 339ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMSET, 340ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMMOVE, 341ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMCPY, 342ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 34316cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // CALLSEQ_START/CALLSEQ_END - These operators mark the beginning and end of 34416cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // a call sequence, and carry arbitrary information that target might want 34516cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // to know. The first operand is a chain, the rest are specified by the 34616cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // target and not touched by the DAG optimizers. 34716cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner CALLSEQ_START, // Beginning of a call sequence 34816cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner CALLSEQ_END, // End of a call sequence 349acc398c195a697795bff3245943d104eb19192b9Nate Begeman 350acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VAARG - VAARG has three operands: an input chain, a pointer, and a 351acc398c195a697795bff3245943d104eb19192b9Nate Begeman // SRCVALUE. It returns a pair of values: the vaarg value and a new chain. 352acc398c195a697795bff3245943d104eb19192b9Nate Begeman VAARG, 353acc398c195a697795bff3245943d104eb19192b9Nate Begeman 354acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VACOPY - VACOPY has five operands: an input chain, a destination pointer, 355acc398c195a697795bff3245943d104eb19192b9Nate Begeman // a source pointer, a SRCVALUE for the destination, and a SRCVALUE for the 356acc398c195a697795bff3245943d104eb19192b9Nate Begeman // source. 357acc398c195a697795bff3245943d104eb19192b9Nate Begeman VACOPY, 358acc398c195a697795bff3245943d104eb19192b9Nate Begeman 359acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VAEND, VASTART - VAEND and VASTART have three operands: an input chain, a 360acc398c195a697795bff3245943d104eb19192b9Nate Begeman // pointer, and a SRCVALUE. 361acc398c195a697795bff3245943d104eb19192b9Nate Begeman VAEND, VASTART, 36263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 36321074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // SRCVALUE - This corresponds to a Value*, and is used to associate memory 36421074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // locations with their value. This allows one use alias analysis 36521074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // information in the backend. 36621074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SRCVALUE, 36721074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner 368e3f570c3f9048bc71a9f5841343eae63719e439bMisha Brukman // PCMARKER - This corresponds to the pcmarker intrinsic. 36995762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth PCMARKER, 37063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 371aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth // READCYCLECOUNTER - This corresponds to the readcyclecounter intrinsic. 3728b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // The only operand is a chain and a value and a chain are produced. The 3738b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // value is the contents of the architecture specific cycle counter like 3748b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // register (or other high accuracy low latency clock source) 375aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth READCYCLECOUNTER, 376aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth 37721074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // READPORT, WRITEPORT, READIO, WRITEIO - These correspond to the LLVM 37821074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // intrinsics of the same name. The first operand is a token chain, the 37921074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // other operands match the intrinsic. These produce a token chain in 38021074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // addition to a value (if any). 38121074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner READPORT, WRITEPORT, READIO, WRITEIO, 382d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner 383d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner // HANDLENODE node - Used as a handle for various purposes. 384d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner HANDLENODE, 3852d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 38647725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // LOCATION - This node is used to represent a source location for debug 38747725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // info. It takes token chain as input, then a line number, then a column 38847725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // number, then a filename, then a working dir. It produces a token chain 38947725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // as output. 39047725d059b259f8a0c145478300c9e9caa006b59Chris Lattner LOCATION, 39147725d059b259f8a0c145478300c9e9caa006b59Chris Lattner 392f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey // DEBUG_LOC - This node is used to represent source line information 393abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // embedded in the code. It takes a token chain as input, then a line 394abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // number, then a column then a file id (provided by MachineDebugInfo.) It 395abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // produces a token chain as output. 396f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey DEBUG_LOC, 397f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 398abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // DEBUG_LABEL - This node is used to mark a location in the code where a 399abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // label should be generated for use by the debug information. It takes a 400df0f659517f688d18922d5b377380366c8a6dfe9Jim Laskey // token chain as input and then a unique id (provided by MachineDebugInfo.) 401df0f659517f688d18922d5b377380366c8a6dfe9Jim Laskey // It produces a token chain as output. 402abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey DEBUG_LABEL, 403abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 40463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BUILTIN_OP_END - This must be the last enum value in this list. 405410354fe0c052141dadeca939395743f8dd58e38Chris Lattner BUILTIN_OP_END 40663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner }; 40763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 40863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner //===--------------------------------------------------------------------===// 40963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// ISD::CondCode enum - These are ordered carefully to make the bitfields 41063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// below work out, when considering SETFALSE (something that never exists 41163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// dynamically) as 0. "U" -> Unsigned (for integer operands) or Unordered 41263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// (for floating point), "L" -> Less than, "G" -> Greater than, "E" -> Equal 41363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// to. If the "N" column is 1, the result of the comparison is undefined if 41463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// the input is a NAN. 41563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 41663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// All of these (except for the 'always folded ops') should be handled for 41763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// floating point. For integer, only the SETEQ,SETNE,SETLT,SETLE,SETGT, 41863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// SETGE,SETULT,SETULE,SETUGT, and SETUGE opcodes are used. 41963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 42063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// Note that these are laid out in a specific order to allow bit-twiddling 42163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// to transform conditions. 42263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner enum CondCode { 42363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Opcode N U L G E Intuitive operation 42463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETFALSE, // 0 0 0 0 Always false (always folded) 42563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOEQ, // 0 0 0 1 True if ordered and equal 42663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOGT, // 0 0 1 0 True if ordered and greater than 42763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOGE, // 0 0 1 1 True if ordered and greater than or equal 42863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOLT, // 0 1 0 0 True if ordered and less than 42963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOLE, // 0 1 0 1 True if ordered and less than or equal 43063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETONE, // 0 1 1 0 True if ordered and operands are unequal 43163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETO, // 0 1 1 1 True if ordered (no nans) 43263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUO, // 1 0 0 0 True if unordered: isnan(X) | isnan(Y) 43363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUEQ, // 1 0 0 1 True if unordered or equal 43463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUGT, // 1 0 1 0 True if unordered or greater than 43563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUGE, // 1 0 1 1 True if unordered, greater than, or equal 43663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETULT, // 1 1 0 0 True if unordered or less than 437ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SETULE, // 1 1 0 1 True if unordered, less than, or equal 43863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUNE, // 1 1 1 0 True if unordered or not equal 43963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETTRUE, // 1 1 1 1 Always true (always folded) 44063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Don't care operations: undefined if the input is a nan. 44163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETFALSE2, // 1 X 0 0 0 Always false (always folded) 44263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETEQ, // 1 X 0 0 1 True if equal 44363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETGT, // 1 X 0 1 0 True if greater than 44463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETGE, // 1 X 0 1 1 True if greater than or equal 44563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETLT, // 1 X 1 0 0 True if less than 446ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SETLE, // 1 X 1 0 1 True if less than or equal 44763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETNE, // 1 X 1 1 0 True if not equal 44863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETTRUE2, // 1 X 1 1 1 Always true (always folded) 44963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 450410354fe0c052141dadeca939395743f8dd58e38Chris Lattner SETCC_INVALID // Marker value. 45163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner }; 45263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 45363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isSignedIntSetCC - Return true if this is a setcc instruction that 45463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// performs a signed comparison when used with integer operands. 45563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isSignedIntSetCC(CondCode Code) { 45663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Code == SETGT || Code == SETGE || Code == SETLT || Code == SETLE; 45763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 45863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 45963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isUnsignedIntSetCC - Return true if this is a setcc instruction that 46063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// performs an unsigned comparison when used with integer operands. 46163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isUnsignedIntSetCC(CondCode Code) { 46263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Code == SETUGT || Code == SETUGE || Code == SETULT || Code == SETULE; 46363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 46463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 46563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isTrueWhenEqual - Return true if the specified condition returns true if 46663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// the two operands to the condition are equal. Note that if one of the two 46763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operands is a NaN, this value is meaningless. 46863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isTrueWhenEqual(CondCode Cond) { 46963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return ((int)Cond & 1) != 0; 47063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 47163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 47263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getUnorderedFlavor - This function returns 0 if the condition is always 47363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// false if an operand is a NaN, 1 if the condition is always true if the 47463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operand is a NaN, and 2 if the condition is undefined if the operand is a 47563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// NaN. 47663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getUnorderedFlavor(CondCode Cond) { 47763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return ((int)Cond >> 3) & 3; 47863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 47963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 48063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCInverse - Return the operation corresponding to !(X op Y), where 48163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 'op' is a valid SetCC operation. 48263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCInverse(CondCode Operation, bool isInteger); 48363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 48463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCSwappedOperands - Return the operation corresponding to (Y op X) 48563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// when given the operation for (X op Y). 48663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCSwappedOperands(CondCode Operation); 48763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 48863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCOrOperation - Return the result of a logical OR between different 48963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// comparisons of identical values: ((X op1 Y) | (X op2 Y)). This 49063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// function returns SETCC_INVALID if it is not possible to represent the 49163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// resultant comparison. 49263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCOrOperation(CondCode Op1, CondCode Op2, bool isInteger); 49363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 49463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCAndOperation - Return the result of a logical AND between 49563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// different comparisons of identical values: ((X op1 Y) & (X op2 Y)). This 49663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// function returns SETCC_INVALID if it is not possible to represent the 49763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// resultant comparison. 49863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCAndOperation(CondCode Op1, CondCode Op2, bool isInteger); 49963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} // end llvm::ISD namespace 50063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 50163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 50263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner//===----------------------------------------------------------------------===// 50363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDOperand - Unlike LLVM values, Selection DAG nodes may return multiple 50463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// values as the result of a computation. Many nodes return multiple values, 50563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// from loads (which define a token and a return value) to ADDC (which returns 50663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// a result and a carry value), to calls (which may return an arbitrary number 50763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// of values). 50863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 50963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// As such, each use of a SelectionDAG computation must indicate the node that 51063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// computes it as well as which return value to use from that node. This pair 51163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// of information is represented with the SDOperand value type. 51263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 513f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattnerclass SDOperand { 514f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattnerpublic: 51563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode *Val; // The node defining the value we are using. 51663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned ResNo; // Which return value of the node we are using. 51763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 51863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDOperand() : Val(0) {} 51963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDOperand(SDNode *val, unsigned resno) : Val(val), ResNo(resno) {} 52063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 52163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator==(const SDOperand &O) const { 52263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val == O.Val && ResNo == O.ResNo; 52363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 52463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator!=(const SDOperand &O) const { 52563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return !operator==(O); 52663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 52763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator<(const SDOperand &O) const { 52863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val < O.Val || (Val == O.Val && ResNo < O.ResNo); 52963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 53063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 53163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDOperand getValue(unsigned R) const { 53263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return SDOperand(Val, R); 53363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 53463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 53563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getValueType - Return the ValueType of the referenced return value. 53663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 53763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline MVT::ValueType getValueType() const; 538ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 53963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Forwarding methods - These forward to the corresponding methods in SDNode. 54063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getOpcode() const; 5410442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner inline unsigned getNodeDepth() const; 54263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getNumOperands() const; 54363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline const SDOperand &getOperand(unsigned i) const; 5440f66a9172175aa7c3055333358170581c999219bNate Begeman inline bool isTargetOpcode() const; 5450f66a9172175aa7c3055333358170581c999219bNate Begeman inline unsigned getTargetOpcode() const; 546a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner 547a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner /// hasOneUse - Return true if there is exactly one operation using this 548a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner /// result value of the defining operator. 549a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner inline bool hasOneUse() const; 55063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 55163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 55263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 55363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// simplify_type specializations - Allow casting operators to work directly on 55463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDOperands as if they were SDNode*'s. 55563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnertemplate<> struct simplify_type<SDOperand> { 55663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner typedef SDNode* SimpleType; 55763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static SimpleType getSimplifiedValue(const SDOperand &Val) { 55863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return static_cast<SimpleType>(Val.Val); 55963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 56063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 56163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnertemplate<> struct simplify_type<const SDOperand> { 56263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner typedef SDNode* SimpleType; 56363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static SimpleType getSimplifiedValue(const SDOperand &Val) { 56463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return static_cast<SimpleType>(Val.Val); 56563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 56663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 56763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 56863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 56963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDNode - Represents one node in the SelectionDAG. 57063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 57163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass SDNode { 5720442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// NodeType - The operation that this node performs. 5730442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// 5740442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned short NodeType; 5750442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 5760442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// NodeDepth - Node depth is defined as MAX(Node depth of children)+1. This 5770442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// means that leaves have a depth of 1, things that use only leaves have a 5780442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// depth of 2, etc. 5790442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned short NodeDepth; 5800442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 581f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// OperandList - The values that are used by this operation. 5820442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// 583f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner SDOperand *OperandList; 584f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 585f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// ValueList - The types of the values this node defines. SDNode's may 586f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// define multiple values simultaneously. 587f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner MVT::ValueType *ValueList; 58863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 589f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// NumOperands/NumValues - The number of entries in the Operand/Value list. 590f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned short NumOperands, NumValues; 591b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 592b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner /// Prev/Next pointers - These pointers form the linked list of of the 593b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner /// AllNodes list in the current DAG. 594b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner SDNode *Prev, *Next; 595b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner friend struct ilist_traits<SDNode>; 59663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 59763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// Uses - These are all of the SDNode's that use a value produced by this 59863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// node. 59963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner std::vector<SDNode*> Uses; 60063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 601b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner virtual ~SDNode() { 602b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner assert(NumOperands == 0 && "Operand list not cleared before deletion"); 603b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner } 604b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 60563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner //===--------------------------------------------------------------------===// 60663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Accessors 60763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // 60863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned getOpcode() const { return NodeType; } 6090f66a9172175aa7c3055333358170581c999219bNate Begeman bool isTargetOpcode() const { return NodeType >= ISD::BUILTIN_OP_END; } 6100f66a9172175aa7c3055333358170581c999219bNate Begeman unsigned getTargetOpcode() const { 6110f66a9172175aa7c3055333358170581c999219bNate Begeman assert(isTargetOpcode() && "Not a target opcode!"); 6120f66a9172175aa7c3055333358170581c999219bNate Begeman return NodeType - ISD::BUILTIN_OP_END; 6130f66a9172175aa7c3055333358170581c999219bNate Begeman } 61463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 61563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner size_t use_size() const { return Uses.size(); } 61663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool use_empty() const { return Uses.empty(); } 61763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool hasOneUse() const { return Uses.size() == 1; } 61863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 6190442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// getNodeDepth - Return the distance from this node to the leaves in the 6200442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// graph. The leaves have a depth of 1. 6210442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned getNodeDepth() const { return NodeDepth; } 6220442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 6237ece380440238ad0630a225b85a09a2dbed1165aChris Lattner typedef std::vector<SDNode*>::const_iterator use_iterator; 6247ece380440238ad0630a225b85a09a2dbed1165aChris Lattner use_iterator use_begin() const { return Uses.begin(); } 6257ece380440238ad0630a225b85a09a2dbed1165aChris Lattner use_iterator use_end() const { return Uses.end(); } 6267ece380440238ad0630a225b85a09a2dbed1165aChris Lattner 627b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// hasNUsesOfValue - Return true if there are exactly NUSES uses of the 628b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// indicated value. This method ignores uses of other values defined by this 629b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// operation. 6304ee621125876cc954cba5280dd9395552755a871Evan Cheng bool hasNUsesOfValue(unsigned NUses, unsigned Value) const; 6314ee621125876cc954cba5280dd9395552755a871Evan Cheng 6324ee621125876cc954cba5280dd9395552755a871Evan Cheng // isOnlyUse - Return true if this node is the only use of N. 6334ee621125876cc954cba5280dd9395552755a871Evan Cheng bool isOnlyUse(SDNode *N) const; 634b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner 63563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getNumOperands - Return the number of values used by this operation. 63663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 637f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned getNumOperands() const { return NumOperands; } 63863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 63963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const SDOperand &getOperand(unsigned Num) const { 640f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(Num < NumOperands && "Invalid child # of SDNode!"); 641f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner return OperandList[Num]; 64263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 643f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner typedef const SDOperand* op_iterator; 644f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner op_iterator op_begin() const { return OperandList; } 645f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner op_iterator op_end() const { return OperandList+NumOperands; } 64650f5a51f41d36c519de68ff11fbf7c7c76f45416Chris Lattner 64763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 64863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getNumValues - Return the number of values defined/returned by this 64963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operator. 65063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 651f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned getNumValues() const { return NumValues; } 65263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 65363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getValueType - Return the type of a specified result. 65463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 65563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MVT::ValueType getValueType(unsigned ResNo) const { 656f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(ResNo < NumValues && "Illegal result number!"); 657f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner return ValueList[ResNo]; 65863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 6599eb59ec548b861d6ede05b4e6dc22aabf645e665Jeff Cohen 660f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner typedef const MVT::ValueType* value_iterator; 661f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner value_iterator value_begin() const { return ValueList; } 662f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner value_iterator value_end() const { return ValueList+NumValues; } 66363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 6646e6e3ceb080e5a8bdfd3258d883a06ebbd8a1965Chris Lattner /// getOperationName - Return the opcode of this operation for printing. 6656e6e3ceb080e5a8bdfd3258d883a06ebbd8a1965Chris Lattner /// 666efe58694050e48b61584b8454434dcd1ad886a71Chris Lattner const char* getOperationName(const SelectionDAG *G = 0) const; 66763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner void dump() const; 668efe58694050e48b61584b8454434dcd1ad886a71Chris Lattner void dump(const SelectionDAG *G) const; 66963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 67063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *) { return true; } 67163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 67263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 67363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 674109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 675109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner /// getValueTypeList - Return a pointer to the specified value type. 676109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner /// 677109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner static MVT::ValueType *getValueTypeList(MVT::ValueType VT); 67863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 6790442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner SDNode(unsigned NT, MVT::ValueType VT) : NodeType(NT), NodeDepth(1) { 680f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = 0; NumOperands = 0; 681109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner ValueList = getValueTypeList(VT); 682f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 1; 683b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 68463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 68563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode(unsigned NT, SDOperand Op) 6860442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner : NodeType(NT), NodeDepth(Op.Val->getNodeDepth()+1) { 687f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[1]; 688f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op; 689f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 1; 69063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner Op.Val->Uses.push_back(this); 691f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 692f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 693b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 69463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 69563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode(unsigned NT, SDOperand N1, SDOperand N2) 69663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner : NodeType(NT) { 6970442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner if (N1.Val->getNodeDepth() > N2.Val->getNodeDepth()) 6980442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner NodeDepth = N1.Val->getNodeDepth()+1; 6990442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner else 7000442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner NodeDepth = N2.Val->getNodeDepth()+1; 701f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[2]; 702f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = N1; 703f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = N2; 704f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 2; 70563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner N1.Val->Uses.push_back(this); N2.Val->Uses.push_back(this); 706f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 707f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 708b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 70963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 71063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode(unsigned NT, SDOperand N1, SDOperand N2, SDOperand N3) 71163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner : NodeType(NT) { 7120442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned ND = N1.Val->getNodeDepth(); 7130442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner if (ND < N2.Val->getNodeDepth()) 7140442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner ND = N2.Val->getNodeDepth(); 7150442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner if (ND < N3.Val->getNodeDepth()) 7160442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner ND = N3.Val->getNodeDepth(); 7170442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner NodeDepth = ND+1; 7180442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 719f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[3]; 720f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = N1; 721f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = N2; 722f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = N3; 723f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 3; 724f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 72563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner N1.Val->Uses.push_back(this); N2.Val->Uses.push_back(this); 72663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner N3.Val->Uses.push_back(this); 727f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 728f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 729b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 73063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 7312d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDNode(unsigned NT, SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4) 7322d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth : NodeType(NT) { 7332d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth unsigned ND = N1.Val->getNodeDepth(); 7342d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth if (ND < N2.Val->getNodeDepth()) 7352d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth ND = N2.Val->getNodeDepth(); 7362d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth if (ND < N3.Val->getNodeDepth()) 7372d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth ND = N3.Val->getNodeDepth(); 7382d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth if (ND < N4.Val->getNodeDepth()) 7392d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth ND = N4.Val->getNodeDepth(); 7402d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth NodeDepth = ND+1; 7412d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 742f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[4]; 743f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = N1; 744f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = N2; 745f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = N3; 746f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[3] = N4; 747f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 4; 748f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 7492d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth N1.Val->Uses.push_back(this); N2.Val->Uses.push_back(this); 7502d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth N3.Val->Uses.push_back(this); N4.Val->Uses.push_back(this); 751f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 752f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 753b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 7542d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth } 755f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner SDNode(unsigned Opc, const std::vector<SDOperand> &Nodes) : NodeType(Opc) { 756f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = Nodes.size(); 757f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[NumOperands]; 758f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 7590442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned ND = 0; 760f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner for (unsigned i = 0, e = Nodes.size(); i != e; ++i) { 761f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[i] = Nodes[i]; 762f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner SDNode *N = OperandList[i].Val; 763f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner N->Uses.push_back(this); 764f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner if (ND < N->getNodeDepth()) ND = N->getNodeDepth(); 7650442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner } 7660442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner NodeDepth = ND+1; 767f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 768f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 769b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 770f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner } 7711b95095857b78e12138c22e76c7936611c51355bChris Lattner 7721b95095857b78e12138c22e76c7936611c51355bChris Lattner /// MorphNodeTo - This clears the return value and operands list, and sets the 7731b95095857b78e12138c22e76c7936611c51355bChris Lattner /// opcode of the node to the specified value. This should only be used by 7741b95095857b78e12138c22e76c7936611c51355bChris Lattner /// the SelectionDAG class. 7751b95095857b78e12138c22e76c7936611c51355bChris Lattner void MorphNodeTo(unsigned Opc) { 7761b95095857b78e12138c22e76c7936611c51355bChris Lattner NodeType = Opc; 777f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 778f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 779b467f8af4125471361468ab91dbedba2abf2e09aChris Lattner 780b467f8af4125471361468ab91dbedba2abf2e09aChris Lattner // Clear the operands list, updating used nodes to remove this from their 781b467f8af4125471361468ab91dbedba2abf2e09aChris Lattner // use list. 782f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner for (op_iterator I = op_begin(), E = op_end(); I != E; ++I) 783f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner I->Val->removeUser(this); 784f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner delete [] OperandList; 785f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = 0; 786f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 0; 78763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 7881b95095857b78e12138c22e76c7936611c51355bChris Lattner 78963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner void setValueTypes(MVT::ValueType VT) { 790f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumValues == 0 && "Should not have values yet!"); 791109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner ValueList = getValueTypeList(VT); 792f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 1; 79363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 794109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner void setValueTypes(MVT::ValueType *List, unsigned NumVal) { 795f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumValues == 0 && "Should not have values yet!"); 796109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner ValueList = List; 797109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner NumValues = NumVal; 79863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 7991b95095857b78e12138c22e76c7936611c51355bChris Lattner 8001b95095857b78e12138c22e76c7936611c51355bChris Lattner void setOperands(SDOperand Op0) { 801f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 802f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[1]; 803f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 804f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 1; 8058c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Op0.Val->Uses.push_back(this); 8061b95095857b78e12138c22e76c7936611c51355bChris Lattner } 8071b95095857b78e12138c22e76c7936611c51355bChris Lattner void setOperands(SDOperand Op0, SDOperand Op1) { 808f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 809f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[2]; 810f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 811f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = Op1; 812f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 2; 8138c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 8141b95095857b78e12138c22e76c7936611c51355bChris Lattner } 8151b95095857b78e12138c22e76c7936611c51355bChris Lattner void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2) { 816f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 817f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[3]; 818f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 819f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = Op1; 820f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = Op2; 821f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 3; 8228c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 8238c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Op2.Val->Uses.push_back(this); 8248c3484c5181834e6b7060a6064ac769878101f23Chris Lattner } 825294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3) { 826f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 827f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[4]; 828f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 829f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = Op1; 830f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = Op2; 831f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[3] = Op3; 832f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 4; 833294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 834294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 835294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman } 836d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3, 837d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner SDOperand Op4) { 838f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 839f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[5]; 840f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 841f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = Op1; 842f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = Op2; 843f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[3] = Op3; 844f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[4] = Op4; 845f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 5; 846d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 847d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 848d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner Op4.Val->Uses.push_back(this); 849d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner } 85061ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3, 85161ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng SDOperand Op4, SDOperand Op5) { 85261ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng assert(NumOperands == 0 && "Should not have operands yet!"); 85361ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList = new SDOperand[6]; 85461ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[0] = Op0; 85561ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[1] = Op1; 85661ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[2] = Op2; 85761ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[3] = Op3; 85861ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[4] = Op4; 85961ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[5] = Op5; 86061ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng NumOperands = 6; 86161ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 86261ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 86361ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng Op4.Val->Uses.push_back(this); Op5.Val->Uses.push_back(this); 86461ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng } 8658c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3, 8668c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand Op4, SDOperand Op5, SDOperand Op6) { 8678c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth assert(NumOperands == 0 && "Should not have operands yet!"); 8688c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList = new SDOperand[7]; 8698c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[0] = Op0; 8708c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[1] = Op1; 8718c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[2] = Op2; 8728c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[3] = Op3; 8738c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[4] = Op4; 8748c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[5] = Op5; 8758c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[6] = Op6; 8768c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth NumOperands = 7; 8778c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 8788c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 8798c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth Op4.Val->Uses.push_back(this); Op5.Val->Uses.push_back(this); 8808c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth Op6.Val->Uses.push_back(this); 8818c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth } 8827cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3, 8837cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand Op4, SDOperand Op5, SDOperand Op6, SDOperand Op7) { 8847cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth assert(NumOperands == 0 && "Should not have operands yet!"); 8857cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList = new SDOperand[8]; 8867cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[0] = Op0; 8877cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[1] = Op1; 8887cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[2] = Op2; 8897cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[3] = Op3; 8907cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[4] = Op4; 8917cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[5] = Op5; 8927cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[6] = Op6; 8937cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[7] = Op7; 8947cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth NumOperands = 8; 8957cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 8967cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 8977cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth Op4.Val->Uses.push_back(this); Op5.Val->Uses.push_back(this); 8987cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth Op6.Val->Uses.push_back(this); Op7.Val->Uses.push_back(this); 8997cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth } 9008c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth 9018c3484c5181834e6b7060a6064ac769878101f23Chris Lattner void addUser(SDNode *User) { 9028c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses.push_back(User); 9031b95095857b78e12138c22e76c7936611c51355bChris Lattner } 904d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner void removeUser(SDNode *User) { 905d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner // Remove this user from the operand's use list. 906d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner for (unsigned i = Uses.size(); ; --i) { 907d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner assert(i != 0 && "Didn't find user!"); 908d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner if (Uses[i-1] == User) { 9098c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses[i-1] = Uses.back(); 9108c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses.pop_back(); 9118c3484c5181834e6b7060a6064ac769878101f23Chris Lattner return; 912d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 913d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 914d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 91563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 91663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 91763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 91863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// Define inline functions from the SDOperand class. 91963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 92063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline unsigned SDOperand::getOpcode() const { 92163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getOpcode(); 92263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 9230442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattnerinline unsigned SDOperand::getNodeDepth() const { 9240442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner return Val->getNodeDepth(); 9250442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner} 92663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline MVT::ValueType SDOperand::getValueType() const { 92763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getValueType(ResNo); 92863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 92963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline unsigned SDOperand::getNumOperands() const { 93063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getNumOperands(); 93163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 93263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline const SDOperand &SDOperand::getOperand(unsigned i) const { 93363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getOperand(i); 93463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 9350f66a9172175aa7c3055333358170581c999219bNate Begemaninline bool SDOperand::isTargetOpcode() const { 9360f66a9172175aa7c3055333358170581c999219bNate Begeman return Val->isTargetOpcode(); 9370f66a9172175aa7c3055333358170581c999219bNate Begeman} 9380f66a9172175aa7c3055333358170581c999219bNate Begemaninline unsigned SDOperand::getTargetOpcode() const { 9390f66a9172175aa7c3055333358170581c999219bNate Begeman return Val->getTargetOpcode(); 9400f66a9172175aa7c3055333358170581c999219bNate Begeman} 941a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattnerinline bool SDOperand::hasOneUse() const { 942a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner return Val->hasNUsesOfValue(1, ResNo); 943a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner} 94463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 945d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// HandleSDNode - This class is used to form a handle around another node that 946d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// is persistant and is updated across invocations of replaceAllUsesWith on its 947d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// operand. This node should be directly created by end-users and not added to 948d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// the AllNodes list. 949d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattnerclass HandleSDNode : public SDNode { 950d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattnerpublic: 951d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner HandleSDNode(SDOperand X) : SDNode(ISD::HANDLENODE, X) {} 952d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner ~HandleSDNode() { 953d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner MorphNodeTo(ISD::HANDLENODE); // Drops operand uses. 954d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner } 955d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner 956d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner SDOperand getValue() const { return getOperand(0); } 957d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner}; 958d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner 95947725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerclass StringSDNode : public SDNode { 96047725d059b259f8a0c145478300c9e9caa006b59Chris Lattner std::string Value; 96147725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerprotected: 96247725d059b259f8a0c145478300c9e9caa006b59Chris Lattner friend class SelectionDAG; 96347725d059b259f8a0c145478300c9e9caa006b59Chris Lattner StringSDNode(const std::string &val) 96447725d059b259f8a0c145478300c9e9caa006b59Chris Lattner : SDNode(ISD::STRING, MVT::Other), Value(val) { 96547725d059b259f8a0c145478300c9e9caa006b59Chris Lattner } 96647725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerpublic: 96747725d059b259f8a0c145478300c9e9caa006b59Chris Lattner const std::string &getValue() const { return Value; } 96847725d059b259f8a0c145478300c9e9caa006b59Chris Lattner static bool classof(const StringSDNode *) { return true; } 96947725d059b259f8a0c145478300c9e9caa006b59Chris Lattner static bool classof(const SDNode *N) { 97047725d059b259f8a0c145478300c9e9caa006b59Chris Lattner return N->getOpcode() == ISD::STRING; 97147725d059b259f8a0c145478300c9e9caa006b59Chris Lattner } 97247725d059b259f8a0c145478300c9e9caa006b59Chris Lattner}; 97363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 97463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantSDNode : public SDNode { 97563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner uint64_t Value; 97663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 97763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 978056f9f61d071c6c583951678f2bf543a1316efccChris Lattner ConstantSDNode(bool isTarget, uint64_t val, MVT::ValueType VT) 979056f9f61d071c6c583951678f2bf543a1316efccChris Lattner : SDNode(isTarget ? ISD::TargetConstant : ISD::Constant, VT), Value(val) { 98063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 98163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 98263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 98363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner uint64_t getValue() const { return Value; } 98463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 98563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int64_t getSignExtended() const { 98663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned Bits = MVT::getSizeInBits(getValueType(0)); 987f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattner return ((int64_t)Value << (64-Bits)) >> (64-Bits); 98863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 98963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 99063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool isNullValue() const { return Value == 0; } 99163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool isAllOnesValue() const { 9922bffad3eebff7997599d12c17248ae580ba17cb8Chris Lattner int NumBits = MVT::getSizeInBits(getValueType(0)); 9932bffad3eebff7997599d12c17248ae580ba17cb8Chris Lattner if (NumBits == 64) return Value+1 == 0; 9942bffad3eebff7997599d12c17248ae580ba17cb8Chris Lattner return Value == (1ULL << NumBits)-1; 99563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 99663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 99763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantSDNode *) { return true; } 99863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 999056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return N->getOpcode() == ISD::Constant || 1000056f9f61d071c6c583951678f2bf543a1316efccChris Lattner N->getOpcode() == ISD::TargetConstant; 100163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 100263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 100363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 100463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantFPSDNode : public SDNode { 100563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner double Value; 100663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 100763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1008ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner ConstantFPSDNode(bool isTarget, double val, MVT::ValueType VT) 1009ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner : SDNode(isTarget ? ISD::TargetConstantFP : ISD::ConstantFP, VT), 1010ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner Value(val) { 101163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 101263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 101363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 101463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner double getValue() const { return Value; } 101563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 101663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isExactlyValue - We don't rely on operator== working on double values, as 101763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// it returns true for things that are clearly not equal, like -0.0 and 0.0. 101863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// As such, this method can be used to do an exact bit-for-bit comparison of 101963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// two floating point values. 102058b968be853ef02d0f448e5e2c31676e361c210fJim Laskey bool isExactlyValue(double V) const; 102163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 102263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantFPSDNode *) { return true; } 102363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1024ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner return N->getOpcode() == ISD::ConstantFP || 1025ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner N->getOpcode() == ISD::TargetConstantFP; 102663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 102763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 102863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 102963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass GlobalAddressSDNode : public SDNode { 103063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner GlobalValue *TheGlobal; 1031404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int Offset; 103263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 103363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 103461ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng GlobalAddressSDNode(bool isTarget, const GlobalValue *GA, MVT::ValueType VT, 103561ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng int o=0) 1036404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng : SDNode(isTarget ? ISD::TargetGlobalAddress : ISD::GlobalAddress, VT), 1037404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng Offset(o) { 103863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner TheGlobal = const_cast<GlobalValue*>(GA); 103963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 104063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 104163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 104263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner GlobalValue *getGlobal() const { return TheGlobal; } 1043404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int getOffset() const { return Offset; } 104463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 104563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const GlobalAddressSDNode *) { return true; } 104663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1047f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner return N->getOpcode() == ISD::GlobalAddress || 1048f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner N->getOpcode() == ISD::TargetGlobalAddress; 104963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 105063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 105163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 105263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 105363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass FrameIndexSDNode : public SDNode { 105463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int FI; 105563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 105663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1057afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner FrameIndexSDNode(int fi, MVT::ValueType VT, bool isTarg) 1058afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner : SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex, VT), FI(fi) {} 105963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 106063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 106163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int getIndex() const { return FI; } 106263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 106363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const FrameIndexSDNode *) { return true; } 106463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1065afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner return N->getOpcode() == ISD::FrameIndex || 1066afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner N->getOpcode() == ISD::TargetFrameIndex; 106763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 106863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 106963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 107063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantPoolSDNode : public SDNode { 10715839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner Constant *C; 1072404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int Offset; 1073b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng unsigned Alignment; 107463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 107563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1076404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng ConstantPoolSDNode(bool isTarget, Constant *c, MVT::ValueType VT, 1077404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int o=0) 1078aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool, VT), 1079404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng C(c), Offset(o), Alignment(0) {} 1080404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng ConstantPoolSDNode(bool isTarget, Constant *c, MVT::ValueType VT, int o, 1081404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng unsigned Align) 1082b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool, VT), 1083404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng C(c), Offset(o), Alignment(Align) {} 108463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 108563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 10865839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner Constant *get() const { return C; } 1087404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int getOffset() const { return Offset; } 1088ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner 1089ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner // Return the alignment of this constant pool object, which is either 0 (for 1090ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner // default alignment) or log2 of the desired value. 1091b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng unsigned getAlignment() const { return Alignment; } 109263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 109363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantPoolSDNode *) { return true; } 109463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1095aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner return N->getOpcode() == ISD::ConstantPool || 1096aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner N->getOpcode() == ISD::TargetConstantPool; 109763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 109863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 109963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 110063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass BasicBlockSDNode : public SDNode { 110163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MachineBasicBlock *MBB; 110263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 110363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 110463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BasicBlockSDNode(MachineBasicBlock *mbb) 110563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner : SDNode(ISD::BasicBlock, MVT::Other), MBB(mbb) {} 110663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 110763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 110863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MachineBasicBlock *getBasicBlock() const { return MBB; } 110963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 111063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const BasicBlockSDNode *) { return true; } 111163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 111263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return N->getOpcode() == ISD::BasicBlock; 111363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 111463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 111563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 11162d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthclass SrcValueSDNode : public SDNode { 11172d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth const Value *V; 1118691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth int offset; 11192d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthprotected: 11202d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth friend class SelectionDAG; 1121691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth SrcValueSDNode(const Value* v, int o) 1122691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth : SDNode(ISD::SRCVALUE, MVT::Other), V(v), offset(o) {} 11232d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 11242d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthpublic: 11252d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth const Value *getValue() const { return V; } 1126691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth int getOffset() const { return offset; } 11272d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 11282d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth static bool classof(const SrcValueSDNode *) { return true; } 11292d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth static bool classof(const SDNode *N) { 11302d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth return N->getOpcode() == ISD::SRCVALUE; 11312d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth } 11322d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth}; 11332d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 113463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1135d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattnerclass RegisterSDNode : public SDNode { 113663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned Reg; 113763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 113863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1139d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner RegisterSDNode(unsigned reg, MVT::ValueType VT) 1140d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner : SDNode(ISD::Register, VT), Reg(reg) {} 114163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 114263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 114363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned getReg() const { return Reg; } 114463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1145d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner static bool classof(const RegisterSDNode *) { return true; } 114663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1147d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return N->getOpcode() == ISD::Register; 114863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 114963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 115063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 115163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ExternalSymbolSDNode : public SDNode { 115263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const char *Symbol; 115363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 115463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 11552a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth ExternalSymbolSDNode(bool isTarget, const char *Sym, MVT::ValueType VT) 11562a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth : SDNode(isTarget ? ISD::TargetExternalSymbol : ISD::ExternalSymbol, VT), 11572a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth Symbol(Sym) { 115863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 115963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 116063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 116163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const char *getSymbol() const { return Symbol; } 116263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 116363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ExternalSymbolSDNode *) { return true; } 116463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 11652a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth return N->getOpcode() == ISD::ExternalSymbol || 11662a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth N->getOpcode() == ISD::TargetExternalSymbol; 116763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 116863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 116963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 11707cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattnerclass CondCodeSDNode : public SDNode { 117163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner ISD::CondCode Condition; 117263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 117363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 11747cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner CondCodeSDNode(ISD::CondCode Cond) 11757cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner : SDNode(ISD::CONDCODE, MVT::Other), Condition(Cond) { 117663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 117763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 117863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 11797cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::CondCode get() const { return Condition; } 118063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 11817cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner static bool classof(const CondCodeSDNode *) { return true; } 118263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 11837cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner return N->getOpcode() == ISD::CONDCODE; 118463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 118563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 118663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 118715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner/// VTSDNode - This class is used to represent MVT::ValueType's, which are used 118815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner/// to parameterize some operations. 118915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerclass VTSDNode : public SDNode { 119015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ValueType; 119115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerprotected: 119215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner friend class SelectionDAG; 119315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner VTSDNode(MVT::ValueType VT) 119415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner : SDNode(ISD::VALUETYPE, MVT::Other), ValueType(VT) {} 119515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerpublic: 119615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 119715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType getVT() const { return ValueType; } 119815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 119915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner static bool classof(const VTSDNode *) { return true; } 120015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner static bool classof(const SDNode *N) { 120115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner return N->getOpcode() == ISD::VALUETYPE; 120215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner } 120315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner}; 120415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 120515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 12061080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnerclass SDNodeIterator : public forward_iterator<SDNode, ptrdiff_t> { 12071080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNode *Node; 12081080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner unsigned Operand; 1209ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 12101080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator(SDNode *N, unsigned Op) : Node(N), Operand(Op) {} 12111080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnerpublic: 12121080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner bool operator==(const SDNodeIterator& x) const { 12131080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return Operand == x.Operand; 12141080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 12151080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner bool operator!=(const SDNodeIterator& x) const { return !operator==(x); } 12161080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 12171080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner const SDNodeIterator &operator=(const SDNodeIterator &I) { 12181080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner assert(I.Node == Node && "Cannot assign iterators to two different nodes!"); 12191080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner Operand = I.Operand; 12201080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return *this; 12211080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 1222ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 12231080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner pointer operator*() const { 12241080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return Node->getOperand(Operand).Val; 12251080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 12261080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner pointer operator->() const { return operator*(); } 1227ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 12281080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator& operator++() { // Preincrement 12291080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner ++Operand; 12301080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return *this; 12311080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 12321080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator operator++(int) { // Postincrement 1233ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SDNodeIterator tmp = *this; ++*this; return tmp; 12341080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 12351080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 12361080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static SDNodeIterator begin(SDNode *N) { return SDNodeIterator(N, 0); } 12371080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static SDNodeIterator end (SDNode *N) { 12381080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator(N, N->getNumOperands()); 12391080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 12401080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 12411080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner unsigned getOperand() const { return Operand; } 12421080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner const SDNode *getNode() const { return Node; } 12431080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 12441080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 12451080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SDNode*> { 12461080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SDNode NodeType; 12471080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SDNodeIterator ChildIteratorType; 12481080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static inline NodeType *getEntryNode(SDNode *N) { return N; } 1249ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman static inline ChildIteratorType child_begin(NodeType *N) { 12501080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator::begin(N); 12511080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 1252ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman static inline ChildIteratorType child_end(NodeType *N) { 12531080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator::end(N); 12541080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 12551080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 12561080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 1257b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate<> 1258b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnerstruct ilist_traits<SDNode> { 1259b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *getPrev(const SDNode *N) { return N->Prev; } 1260b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *getNext(const SDNode *N) { return N->Next; } 1261b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1262b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void setPrev(SDNode *N, SDNode *Prev) { N->Prev = Prev; } 1263b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void setNext(SDNode *N, SDNode *Next) { N->Next = Next; } 1264b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1265b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *createSentinel() { 1266b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner return new SDNode(ISD::EntryToken, MVT::Other); 1267b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner } 1268b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void destroySentinel(SDNode *N) { delete N; } 1269b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner //static SDNode *createNode(const SDNode &V) { return new SDNode(V); } 1270b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1271b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1272b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void addNodeToList(SDNode *NTy) {} 1273b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void removeNodeFromList(SDNode *NTy) {} 1274b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void transferNodesFromList(iplist<SDNode, ilist_traits> &L2, 1275b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner const ilist_iterator<SDNode> &X, 1276b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner const ilist_iterator<SDNode> &Y) {} 1277b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner}; 1278b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 127963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} // end llvm namespace 128063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 128163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#endif 1282