SelectionDAGNodes.h revision 3258ed6a361bf405a89f7af0b1885841d9909516
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 { 503258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner // DELETED_NODE - This is an illegal flag value that is used to catch 513258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner // errors. This opcode is not a legal opcode for any node. 523258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner DELETED_NODE, 533258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner 548a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // EntryToken - This is the marker used to indicate the start of the region. 558a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner EntryToken, 568a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner 578c4bde36a339b1c538002e819daff84caae4cbadReid Spencer // Token factor - This node takes multiple tokens as input and produces a 588a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // single token result. This is used to represent the fact that the operand 598a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // operators are independent of each other. 608a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner TokenFactor, 61f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman 62f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // AssertSext, AssertZext - These nodes record if a register contains a 63f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // value that has already been zero or sign extended from a narrower type. 64f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // These nodes take two operands. The first is the node that has already 65f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // been extended, and the second is a value type node indicating the width 66f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // of the extension 67f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman AssertSext, AssertZext, 68ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 698a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // Various leaf nodes. 701ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng STRING, BasicBlock, VALUETYPE, CONDCODE, Register, 711ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng Constant, ConstantFP, 7237efe6764568a3829fee26aba532283131d1a104Nate Begeman GlobalAddress, FrameIndex, JumpTable, ConstantPool, ExternalSymbol, 731ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng 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, 78f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner 79f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // TargetGlobalAddress - Like GlobalAddress, but the DAG does no folding or 80f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // anything else with this node, and this is valid in the target-specific 81f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // dag, turning into a GlobalAddress operand. 82f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner TargetGlobalAddress, 83afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner TargetFrameIndex, 8437efe6764568a3829fee26aba532283131d1a104Nate Begeman TargetJumpTable, 85aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner TargetConstantPool, 862a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth TargetExternalSymbol, 8772601cac6051a9571ca4db3b32d6a73e40b40bd1Chris Lattner 88ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// RESULT = INTRINSIC_WO_CHAIN(INTRINSICID, arg1, arg2, ...) 89ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// This node represents a target intrinsic function with no side effects. 90ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// The first operand is the ID number of the intrinsic from the 91ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// llvm::Intrinsic namespace. The operands to the intrinsic follow. The 92ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// node has returns the result of the intrinsic. 93ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner INTRINSIC_WO_CHAIN, 94ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner 95ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// RESULT,OUTCHAIN = INTRINSIC_W_CHAIN(INCHAIN, INTRINSICID, arg1, ...) 96ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// This node represents a target intrinsic function with side effects that 97ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// returns a result. The first operand is a chain pointer. The second is 98ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// the ID number of the intrinsic from the llvm::Intrinsic namespace. The 99ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// operands to the intrinsic follow. The node has two results, the result 100ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// of the intrinsic and an output chain. 101ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner INTRINSIC_W_CHAIN, 10263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 103ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// OUTCHAIN = INTRINSIC_VOID(INCHAIN, INTRINSICID, arg1, arg2, ...) 104ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// This node represents a target intrinsic function with side effects that 105ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// does not return a result. The first operand is a chain pointer. The 106ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// second is the ID number of the intrinsic from the llvm::Intrinsic 107ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// namespace. The operands to the intrinsic follow. 108ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner INTRINSIC_VOID, 109ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner 110d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner // CopyToReg - This node has three operands: a chain, a register number to 111d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner // set to this value, and a value. 11263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CopyToReg, 11363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 11463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // CopyFromReg - This node indicates that the input value is a virtual or 11563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // physical register that is defined outside of the scope of this 11618c2f13e0f9d0e5d6227cf6d1881e9ee3d1b6109Chris Lattner // SelectionDAG. The register is available from the RegSDNode object. 11763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CopyFromReg, 11863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 119fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman // UNDEF - An undefined node 120fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman UNDEF, 121681ee1c1c3f7c3558c29a5bf3a668c1d0784c399Chris Lattner 122c1a8ad71e11123f1e3c8d9913a7f51978b9967d5Chris Lattner /// FORMAL_ARGUMENTS(CHAIN, CC#, ISVARARG) - This node represents the formal 123681ee1c1c3f7c3558c29a5bf3a668c1d0784c399Chris Lattner /// arguments for a function. CC# is a Constant value indicating the 124681ee1c1c3f7c3558c29a5bf3a668c1d0784c399Chris Lattner /// calling convention of the function, and ISVARARG is a flag that 125681ee1c1c3f7c3558c29a5bf3a668c1d0784c399Chris Lattner /// indicates whether the function is varargs or not. This node has one 126c1a8ad71e11123f1e3c8d9913a7f51978b9967d5Chris Lattner /// result value for each incoming argument, plus one for the output chain. 127c1a8ad71e11123f1e3c8d9913a7f51978b9967d5Chris Lattner /// It must be custom legalized. 128c1a8ad71e11123f1e3c8d9913a7f51978b9967d5Chris Lattner /// 129681ee1c1c3f7c3558c29a5bf3a668c1d0784c399Chris Lattner FORMAL_ARGUMENTS, 1306c0bfc723779366698d3936b63dcddc6164c2d33Chris Lattner 1316c0bfc723779366698d3936b63dcddc6164c2d33Chris Lattner /// RV1, RV2...RVn, CHAIN = CALL(CHAIN, CC#, ISVARARG, ISTAILCALL, CALLEE, 1329657eac240f21b563bc5f322479a1e2810e1e9deEvan Cheng /// ARG0, SIGN0, ARG1, SIGN1, ... ARGn, SIGNn) 1336c0bfc723779366698d3936b63dcddc6164c2d33Chris Lattner /// This node represents a fully general function call, before the legalizer 1349657eac240f21b563bc5f322479a1e2810e1e9deEvan Cheng /// runs. This has one result value for each argument / signness pair, plus 1359657eac240f21b563bc5f322479a1e2810e1e9deEvan Cheng /// a chain result. It must be custom legalized. 1366c0bfc723779366698d3936b63dcddc6164c2d33Chris Lattner CALL, 137fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman 13863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // EXTRACT_ELEMENT - This is used to get the first or second (determined by 13963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // a Constant, which is required to be operand #1), element of the aggregate 14063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // value specified as operand #0. This is only for use before legalization, 14163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // for values that will be broken into multiple registers. 14263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner EXTRACT_ELEMENT, 14363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 14463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BUILD_PAIR - This is the opposite of EXTRACT_ELEMENT in some ways. Given 14563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // two values of the same integer value type, this produces a value twice as 14663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // big. Like EXTRACT_ELEMENT, this can only be used before legalization. 14763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BUILD_PAIR, 148006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner 149006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // MERGE_VALUES - This node takes multiple discrete operands and returns 150006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // them all as its individual results. This nodes has exactly the same 151006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // number of inputs and outputs, and is only valid before legalization. 152006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // This node is useful for some pieces of the code generator that want to 153006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // think about a single node with multiple results, not multiple nodes. 154006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner MERGE_VALUES, 15563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 156615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner // Simple integer binary arithmetic operators. 157bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner ADD, SUB, MUL, SDIV, UDIV, SREM, UREM, 158615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner 159551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Carry-setting nodes for multiple precision addition and subtraction. 160551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // These nodes take two operands of the same value type, and produce two 161551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // results. The first result is the normal add or sub result, the second 162551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // result is the carry flag result. 163551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman ADDC, SUBC, 164551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 165551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Carry-using nodes for multiple precision addition and subtraction. These 166551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // nodes take three operands: The first two are the normal lhs and rhs to 167551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // the add or sub, and the third is the input carry flag. These nodes 168551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // produce two results; the normal result of the add or sub, and the output 169551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // carry flag. These nodes both read and write a carry flag to allow them 170551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // to them to be chained together for add and sub of arbitrarily large 171551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // values. 172551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman ADDE, SUBE, 173551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 174615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner // Simple binary floating point operators. 175615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner FADD, FSUB, FMUL, FDIV, FREM, 17638bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner 17738bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner // FCOPYSIGN(X, Y) - Return the value of X with the sign of Y. NOTE: This 17838bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner // DAG node does not require that X and Y have the same type, just that they 17938bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner // are both floating point. X and the result must have the same type. 18038bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner // FCOPYSIGN(f32, f64) is allowed. 18138bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner FCOPYSIGN, 182fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner 18322232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// VBUILD_VECTOR(ELT1, ELT2, ELT3, ELT4,..., COUNT,TYPE) - Return a vector 18422232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// with the specified, possibly variable, elements. The number of elements 18522232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// is required to be a power of two. 18622232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner VBUILD_VECTOR, 187bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner 18822232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// BUILD_VECTOR(ELT1, ELT2, ELT3, ELT4,...) - Return a vector 18922232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// with the specified, possibly variable, elements. The number of elements 19022232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// is required to be a power of two. 19122232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner BUILD_VECTOR, 19222232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner 193fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner /// VINSERT_VECTOR_ELT(VECTOR, VAL, IDX, COUNT,TYPE) - Given a vector 194fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner /// VECTOR, an element ELEMENT, and a (potentially variable) index IDX, 195fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner /// return an vector with the specified element of VECTOR replaced with VAL. 196fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner /// COUNT and TYPE specify the type of vector, as is standard for V* nodes. 197fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner VINSERT_VECTOR_ELT, 198fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner 19922232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// INSERT_VECTOR_ELT(VECTOR, VAL, IDX) - Returns VECTOR (a legal packed 20022232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// type) with the element at IDX replaced with VAL. 20122232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner INSERT_VECTOR_ELT, 2024b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner 2034b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner /// VEXTRACT_VECTOR_ELT(VECTOR, IDX) - Returns a single element from VECTOR 2044b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner /// (an MVT::Vector value) identified by the (potentially variable) element 2054b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner /// number IDX. 2064b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner VEXTRACT_VECTOR_ELT, 2074b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner 2084b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner /// EXTRACT_VECTOR_ELT(VECTOR, IDX) - Returns a single element from VECTOR 2094b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner /// (a legal packed type vector) identified by the (potentially variable) 2104b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner /// element number IDX. 2114b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner EXTRACT_VECTOR_ELT, 21222232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner 213eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner /// VVECTOR_SHUFFLE(VEC1, VEC2, SHUFFLEVEC, COUNT,TYPE) - Returns a vector, 214eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner /// of the same type as VEC1/VEC2. SHUFFLEVEC is a VBUILD_VECTOR of 215eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner /// constant int values that indicate which value each result element will 216eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner /// get. The elements of VEC1/VEC2 are enumerated in order. This is quite 217eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner /// similar to the Altivec 'vperm' instruction, except that the indices must 218eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner /// be constants and are in terms of the element size of VEC1/VEC2, not in 219eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner /// terms of bytes. 220eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner VVECTOR_SHUFFLE, 221eda6dfd5e46f2475eb1a9d79750bdd6be6b7e94aChris Lattner 22249c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// VECTOR_SHUFFLE(VEC1, VEC2, SHUFFLEVEC) - Returns a vector, of the same 22349c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// type as VEC1/VEC2. SHUFFLEVEC is a BUILD_VECTOR of constant int values 22449c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// (regardless of whether its datatype is legal or not) that indicate 22549c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// which value each result element will get. The elements of VEC1/VEC2 are 22649c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// enumerated in order. This is quite similar to the Altivec 'vperm' 22749c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// instruction, except that the indices must be constants and are in terms 22849c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// of the element size of VEC1/VEC2, not in terms of bytes. 22949c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner VECTOR_SHUFFLE, 23049c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner 231762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner /// X = VBIT_CONVERT(Y) and X = VBIT_CONVERT(Y, COUNT,TYPE) - This node 232762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner /// represents a conversion from or to an ISD::Vector type. 233762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner /// 234762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner /// This is lowered to a BIT_CONVERT of the appropriate input/output types. 235762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner /// The input and output are required to have the same size and at least one 236313f13c5aa9f20ed58422e24c247c05f4f0af7ffChris Lattner /// is required to be a vector (if neither is a vector, just use 237313f13c5aa9f20ed58422e24c247c05f4f0af7ffChris Lattner /// BIT_CONVERT). 238762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner /// 239313f13c5aa9f20ed58422e24c247c05f4f0af7ffChris Lattner /// If the result is a vector, this takes three operands (like any other 240313f13c5aa9f20ed58422e24c247c05f4f0af7ffChris Lattner /// vector producer) which indicate the size and type of the vector result. 241762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner /// Otherwise it takes one input. 242762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner VBIT_CONVERT, 243762f2ae0c4c07a93fd2f830fb079692dbccef85cChris Lattner 24422232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// BINOP(LHS, RHS, COUNT,TYPE) 24522232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// Simple abstract vector operators. Unlike the integer and floating point 24622232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// binary operators, these nodes also take two additional operands: 24722232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// a constant element count, and a value type node indicating the type of 24822232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// the elements. The order is count, type, op0, op1. All vector opcodes, 24922232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// including VLOAD and VConstant must currently have count and type as 25022232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// their last two operands. 25122232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner VADD, VSUB, VMUL, VSDIV, VUDIV, 25222232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner VAND, VOR, VXOR, 253210721aecc0916315f61660dc387a96b89ec423bChris Lattner 25449027e639eb40eef51837b55a3af17dcdb4d400aChris Lattner /// VSELECT(COND,LHS,RHS, COUNT,TYPE) - Select for MVT::Vector values. 25549027e639eb40eef51837b55a3af17dcdb4d400aChris Lattner /// COND is a boolean value. This node return LHS if COND is true, RHS if 25649027e639eb40eef51837b55a3af17dcdb4d400aChris Lattner /// COND is false. 25749027e639eb40eef51837b55a3af17dcdb4d400aChris Lattner VSELECT, 25849027e639eb40eef51837b55a3af17dcdb4d400aChris Lattner 259210721aecc0916315f61660dc387a96b89ec423bChris Lattner /// SCALAR_TO_VECTOR(VAL) - This represents the operation of loading a 260210721aecc0916315f61660dc387a96b89ec423bChris Lattner /// scalar value into the low element of the resultant vector type. The top 261210721aecc0916315f61660dc387a96b89ec423bChris Lattner /// elements of the vector are undefined. 262210721aecc0916315f61660dc387a96b89ec423bChris Lattner SCALAR_TO_VECTOR, 263210721aecc0916315f61660dc387a96b89ec423bChris Lattner 264bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner // MULHU/MULHS - Multiply high - Multiply two integers of type iN, producing 265bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner // an unsigned/signed value of type i[2*n], then return the top part. 266bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner MULHU, MULHS, 26763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 26835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // Bitwise operators - logical and, logical or, logical xor, shift left, 26935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // shift right algebraic (shift in sign bits), shift right logical (shift in 27035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // zeroes), rotate left, rotate right, and byteswap. 27135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman AND, OR, XOR, SHL, SRA, SRL, ROTL, ROTR, BSWAP, 27263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 273691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Counting operators 274691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth CTTZ, CTLZ, CTPOP, 275691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 276fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner // Select(COND, TRUEVAL, FALSEVAL) 2779373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SELECT, 2789373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2799373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // Select with condition operator - This selects between a true value and 2809373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // a false value (ops #2 and #3) based on the boolean result of comparing 2819373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // the lhs and rhs (ops #0 and #1) of a conditional expression with the 2829373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // condition code in op #4, a CondCodeSDNode. 2839373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SELECT_CC, 28463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 28563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // SetCC operator - This evaluates to a boolean (i1) true value if the 2867cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // condition is true. The operands to this are the left and right operands 2877cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // to compare (ops #0, and #1) and the condition code to compare them with 2887cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // (op #2) as a CondCodeSDNode. 28963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETCC, 29063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 29114c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded 29214c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // integer shift operations, just like ADD/SUB_PARTS. The operation 29314c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // ordering is: 2946b8f2d649c1e96e0222be9de1e5d6c79e3eef021Chris Lattner // [Lo,Hi] = op [LoLHS,HiLHS], Amt 29514c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner SHL_PARTS, SRA_PARTS, SRL_PARTS, 29614c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner 29763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Conversion operators. These are all single input single output 29863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // operations. For all of these, the result type must be strictly 29963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // wider or narrower (depending on the operation) than the source 30063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // type. 30163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 30263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // SIGN_EXTEND - Used for integer types, replicating the sign bit 30363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // into new bits. 30463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SIGN_EXTEND, 30563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 30663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // ZERO_EXTEND - Used for integer types, zeroing the new bits. 30763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner ZERO_EXTEND, 30863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3097e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner // ANY_EXTEND - Used for integer types. The high bits are undefined. 3107e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner ANY_EXTEND, 3117e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner 31263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // TRUNCATE - Completely drop the high bits. 31363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner TRUNCATE, 31463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3151645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // [SU]INT_TO_FP - These operators convert integers (whose interpreted sign 3161645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // depends on the first letter) to floating point. 3171645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner SINT_TO_FP, 3181645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner UINT_TO_FP, 3191645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner 320ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // SIGN_EXTEND_INREG - This operator atomically performs a SHL/SRA pair to 321ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // sign extend a small value in a large integer register (e.g. sign 322ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // extending the low 8 bits of a 32-bit register to fill the top 24 bits 32315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // with the 7th bit). The size of the smaller type is indicated by the 1th 32415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // operand, a ValueType node. 325859157daee6a4b49e99921832e1dde065167b317Chris Lattner SIGN_EXTEND_INREG, 326859157daee6a4b49e99921832e1dde065167b317Chris Lattner 3271645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // FP_TO_[US]INT - Convert a floating point value to a signed or unsigned 3281645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // integer. 3291645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner FP_TO_SINT, 3301645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner FP_TO_UINT, 3311645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner 33263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // FP_ROUND - Perform a rounding operation from the current 333859157daee6a4b49e99921832e1dde065167b317Chris Lattner // precision down to the specified precision (currently always 64->32). 33463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner FP_ROUND, 33563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 336859157daee6a4b49e99921832e1dde065167b317Chris Lattner // FP_ROUND_INREG - This operator takes a floating point register, and 337859157daee6a4b49e99921832e1dde065167b317Chris Lattner // rounds it to a floating point value. It then promotes it and returns it 338859157daee6a4b49e99921832e1dde065167b317Chris Lattner // in a register of the same size. This operation effectively just discards 33915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // excess precision. The type to round down to is specified by the 1th 34015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // operation, a VTSDNode (currently always 64->32->64). 341859157daee6a4b49e99921832e1dde065167b317Chris Lattner FP_ROUND_INREG, 342859157daee6a4b49e99921832e1dde065167b317Chris Lattner 34363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // FP_EXTEND - Extend a smaller FP type into a larger FP type. 34463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner FP_EXTEND, 34563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3461ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner // BIT_CONVERT - Theis operator converts between integer and FP values, as 3471ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner // if one was stored to memory as integer and the other was loaded from the 34880f55abf009c86bc03821e10746832f88f8a735fChris Lattner // same address (or equivalently for vector format conversions, etc). The 34980f55abf009c86bc03821e10746832f88f8a735fChris Lattner // source and result are required to have the same bit size (e.g. 35080f55abf009c86bc03821e10746832f88f8a735fChris Lattner // f32 <-> i32). This can also be used for int-to-int or fp-to-fp 35180f55abf009c86bc03821e10746832f88f8a735fChris Lattner // conversions, but that is a noop, deleted by getNode(). 3521ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner BIT_CONVERT, 3531ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner 3547f64464ff100bcb7661b65c74c13dc88e83eb65bChris Lattner // FNEG, FABS, FSQRT, FSIN, FCOS - Perform unary floating point negation, 3557f64464ff100bcb7661b65c74c13dc88e83eb65bChris Lattner // absolute value, square root, sine and cosine operations. 3567f64464ff100bcb7661b65c74c13dc88e83eb65bChris Lattner FNEG, FABS, FSQRT, FSIN, FCOS, 35738bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner 3581cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // Other operators. LOAD and STORE have token chains as their first 359f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // operand, then the same operands as an LLVM load/store instruction, then a 360f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // SRCVALUE node that provides alias analysis information. 36163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner LOAD, STORE, 3625fbb5d2459a5410590f285250faa604576308a93Nate Begeman 3631ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng // Abstract vector version of LOAD. VLOAD has a constant element count as 3641ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng // the first operand, followed by a value type node indicating the type of 3651ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng // the elements, a token chain, a pointer operand, and a SRCVALUE node. 3665fbb5d2459a5410590f285250faa604576308a93Nate Begeman VLOAD, 36763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3685f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // EXTLOAD, SEXTLOAD, ZEXTLOAD - These three operators all load a value from 3695f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // memory and extend them to a larger value (e.g. load a byte into a word 3705f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // register). All three of these have four operands, a token chain, a 3715f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // pointer to load from, a SRCVALUE for alias analysis, and a VALUETYPE node 3725f056bf4b862a7c31388a68711dd3b3ed5de2be8Chris Lattner // indicating the type to load. 3731cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // 3741cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // SEXTLOAD loads the integer operand and sign extends it to a larger 3751cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // integer result type. 3761cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // ZEXTLOAD loads the integer operand and zero extends it to a larger 3771cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // integer result type. 378210721aecc0916315f61660dc387a96b89ec423bChris Lattner // EXTLOAD is used for three things: floating point extending loads, 379210721aecc0916315f61660dc387a96b89ec423bChris Lattner // integer extending loads [the top bits are undefined], and vector 380210721aecc0916315f61660dc387a96b89ec423bChris Lattner // extending loads [load into low elt]. 3811cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner EXTLOAD, SEXTLOAD, ZEXTLOAD, 3821cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 3831cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // TRUNCSTORE - This operators truncates (for integer) or rounds (for FP) a 3841cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner // value and stores it to memory in one operation. This can be used for 385f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // either integer or floating point operands. The first four operands of 386f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // this are the same as a standard store. The fifth is the ValueType to 387f7db8c69a12582c7d1ff7c5f25c948dca2dbf7dcChris Lattner // store it as (which will be smaller than the source value). 3881cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner TRUNCSTORE, 3891cff05c7c216eea0e9173738c2a60b70c2b3c013Chris Lattner 39063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // DYNAMIC_STACKALLOC - Allocate some number of bytes on the stack aligned 39163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // to a specified boundary. The first operand is the token chain, the 39263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // second is the number of bytes to allocate, and the third is the alignment 39374fe063e90045931eefaba561730e6a9175ced78Chris Lattner // boundary. The size is guaranteed to be a multiple of the stack 39474fe063e90045931eefaba561730e6a9175ced78Chris Lattner // alignment, and the alignment is guaranteed to be bigger than the stack 39574fe063e90045931eefaba561730e6a9175ced78Chris Lattner // alignment (if required) or 0 to get standard stack alignment. 39663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner DYNAMIC_STACKALLOC, 39763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 39863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Control flow instructions. These all have token chains. 399ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 40063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BR - Unconditional branch. The first operand is the chain 40163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // operand, the second is the MBB to branch to. 40263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BR, 40363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 40437efe6764568a3829fee26aba532283131d1a104Nate Begeman // BRIND - Indirect branch. The first operand is the chain, the second 40537efe6764568a3829fee26aba532283131d1a104Nate Begeman // is the value to branch to, which must be of the same type as the target's 40637efe6764568a3829fee26aba532283131d1a104Nate Begeman // pointer type. 40737efe6764568a3829fee26aba532283131d1a104Nate Begeman BRIND, 40837efe6764568a3829fee26aba532283131d1a104Nate Begeman 40963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BRCOND - Conditional branch. The first operand is the chain, 41063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // the second is the condition, the third is the block to branch 41163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // to if the condition is true. 41263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BRCOND, 41363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 4147cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // BR_CC - Conditional branch. The behavior is like that of SELECT_CC, in 4157cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // that the condition is represented as condition code, and two nodes to 4167cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // compare, rather than as a combined SetCC node. The operands in order are 4177cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // chain, cc, lhs, rhs, block to branch to if condition is true. 4187cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman BR_CC, 4197cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 42063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // RET - Return from function. The first operand is the chain, 4218e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng // and any subsequent operands are pairs of return value and return value 4228e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng // signness for the function. This operation can have variable number of 4238e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng // operands. 42463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner RET, 42563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 4267572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // INLINEASM - Represents an inline asm block. This node always has two 4277572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // return values: a chain and a flag result. The inputs are as follows: 4287572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #0 : Input chain. 4297572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #1 : a ExternalSymbolSDNode with a pointer to the asm string. 4307572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #2n+2: A RegisterNode. 4317572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #2n+3: A TargetConstant, indicating if the reg is a use/def 4327572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #last: Optional, an incoming flag. 4337572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner INLINEASM, 434ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner 4355a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // STACKSAVE - STACKSAVE has one operand, an input chain. It produces a 4365a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // value, the same type as the pointer type for the system, and an output 4375a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // chain. 4385a67afc118d47a0061ca9809c763451ea3125306Chris Lattner STACKSAVE, 4395a67afc118d47a0061ca9809c763451ea3125306Chris Lattner 4405a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // STACKRESTORE has two operands, an input chain and a pointer to restore to 4415a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // it returns an output chain. 4425a67afc118d47a0061ca9809c763451ea3125306Chris Lattner STACKRESTORE, 4435a67afc118d47a0061ca9809c763451ea3125306Chris Lattner 444ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner // MEMSET/MEMCPY/MEMMOVE - The first operand is the chain, and the rest 445ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner // correspond to the operands of the LLVM intrinsic functions. The only 446ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner // result is a token chain. The alignment argument is guaranteed to be a 447ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner // Constant node. 448ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMSET, 449ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMMOVE, 450ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMCPY, 451ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 45216cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // CALLSEQ_START/CALLSEQ_END - These operators mark the beginning and end of 45316cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // a call sequence, and carry arbitrary information that target might want 45416cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // to know. The first operand is a chain, the rest are specified by the 45516cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // target and not touched by the DAG optimizers. 45616cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner CALLSEQ_START, // Beginning of a call sequence 45716cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner CALLSEQ_END, // End of a call sequence 458acc398c195a697795bff3245943d104eb19192b9Nate Begeman 459acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VAARG - VAARG has three operands: an input chain, a pointer, and a 460acc398c195a697795bff3245943d104eb19192b9Nate Begeman // SRCVALUE. It returns a pair of values: the vaarg value and a new chain. 461acc398c195a697795bff3245943d104eb19192b9Nate Begeman VAARG, 462acc398c195a697795bff3245943d104eb19192b9Nate Begeman 463acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VACOPY - VACOPY has five operands: an input chain, a destination pointer, 464acc398c195a697795bff3245943d104eb19192b9Nate Begeman // a source pointer, a SRCVALUE for the destination, and a SRCVALUE for the 465acc398c195a697795bff3245943d104eb19192b9Nate Begeman // source. 466acc398c195a697795bff3245943d104eb19192b9Nate Begeman VACOPY, 467acc398c195a697795bff3245943d104eb19192b9Nate Begeman 468acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VAEND, VASTART - VAEND and VASTART have three operands: an input chain, a 469acc398c195a697795bff3245943d104eb19192b9Nate Begeman // pointer, and a SRCVALUE. 470acc398c195a697795bff3245943d104eb19192b9Nate Begeman VAEND, VASTART, 47163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 47221074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // SRCVALUE - This corresponds to a Value*, and is used to associate memory 47321074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // locations with their value. This allows one use alias analysis 47421074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner // information in the backend. 47521074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SRCVALUE, 47621074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner 477e3f570c3f9048bc71a9f5841343eae63719e439bMisha Brukman // PCMARKER - This corresponds to the pcmarker intrinsic. 47895762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth PCMARKER, 47963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 480aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth // READCYCLECOUNTER - This corresponds to the readcyclecounter intrinsic. 4818b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // The only operand is a chain and a value and a chain are produced. The 4828b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // value is the contents of the architecture specific cycle counter like 4838b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // register (or other high accuracy low latency clock source) 484aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth READCYCLECOUNTER, 485aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth 486d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner // HANDLENODE node - Used as a handle for various purposes. 487d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner HANDLENODE, 4882d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 48947725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // LOCATION - This node is used to represent a source location for debug 49047725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // info. It takes token chain as input, then a line number, then a column 49147725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // number, then a filename, then a working dir. It produces a token chain 49247725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // as output. 49347725d059b259f8a0c145478300c9e9caa006b59Chris Lattner LOCATION, 49447725d059b259f8a0c145478300c9e9caa006b59Chris Lattner 495f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey // DEBUG_LOC - This node is used to represent source line information 496abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // embedded in the code. It takes a token chain as input, then a line 497abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // number, then a column then a file id (provided by MachineDebugInfo.) It 498abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // produces a token chain as output. 499f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey DEBUG_LOC, 500f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 501abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // DEBUG_LABEL - This node is used to mark a location in the code where a 502abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // label should be generated for use by the debug information. It takes a 503df0f659517f688d18922d5b377380366c8a6dfe9Jim Laskey // token chain as input and then a unique id (provided by MachineDebugInfo.) 504df0f659517f688d18922d5b377380366c8a6dfe9Jim Laskey // It produces a token chain as output. 505abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey DEBUG_LABEL, 506abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 50763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BUILTIN_OP_END - This must be the last enum value in this list. 508410354fe0c052141dadeca939395743f8dd58e38Chris Lattner BUILTIN_OP_END 50963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner }; 51063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 511322dcd379eb19ea8d01478a661920ea1ce62fa0dChris Lattner /// Node predicates 512322dcd379eb19ea8d01478a661920ea1ce62fa0dChris Lattner 513a8df166fbef047c90adba3c673162a1b1f6681c4Evan Cheng /// isBuildVectorAllOnes - Return true if the specified node is a 514322dcd379eb19ea8d01478a661920ea1ce62fa0dChris Lattner /// BUILD_VECTOR where all of the elements are ~0 or undef. 515a8df166fbef047c90adba3c673162a1b1f6681c4Evan Cheng bool isBuildVectorAllOnes(const SDNode *N); 5164a147842eb24a7611fcd7bfb37c55185b4664927Evan Cheng 5174a147842eb24a7611fcd7bfb37c55185b4664927Evan Cheng /// isBuildVectorAllZeros - Return true if the specified node is a 5184a147842eb24a7611fcd7bfb37c55185b4664927Evan Cheng /// BUILD_VECTOR where all of the elements are 0 or undef. 5194a147842eb24a7611fcd7bfb37c55185b4664927Evan Cheng bool isBuildVectorAllZeros(const SDNode *N); 520322dcd379eb19ea8d01478a661920ea1ce62fa0dChris Lattner 52163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner //===--------------------------------------------------------------------===// 52263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// ISD::CondCode enum - These are ordered carefully to make the bitfields 52363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// below work out, when considering SETFALSE (something that never exists 52463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// dynamically) as 0. "U" -> Unsigned (for integer operands) or Unordered 52563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// (for floating point), "L" -> Less than, "G" -> Greater than, "E" -> Equal 52663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// to. If the "N" column is 1, the result of the comparison is undefined if 52763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// the input is a NAN. 52863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 52963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// All of these (except for the 'always folded ops') should be handled for 53063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// floating point. For integer, only the SETEQ,SETNE,SETLT,SETLE,SETGT, 53163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// SETGE,SETULT,SETULE,SETUGT, and SETUGE opcodes are used. 53263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 53363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// Note that these are laid out in a specific order to allow bit-twiddling 53463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// to transform conditions. 53563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner enum CondCode { 53663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Opcode N U L G E Intuitive operation 53763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETFALSE, // 0 0 0 0 Always false (always folded) 53863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOEQ, // 0 0 0 1 True if ordered and equal 53963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOGT, // 0 0 1 0 True if ordered and greater than 54063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOGE, // 0 0 1 1 True if ordered and greater than or equal 54163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOLT, // 0 1 0 0 True if ordered and less than 54263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOLE, // 0 1 0 1 True if ordered and less than or equal 54363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETONE, // 0 1 1 0 True if ordered and operands are unequal 54463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETO, // 0 1 1 1 True if ordered (no nans) 54563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUO, // 1 0 0 0 True if unordered: isnan(X) | isnan(Y) 54663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUEQ, // 1 0 0 1 True if unordered or equal 54763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUGT, // 1 0 1 0 True if unordered or greater than 54863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUGE, // 1 0 1 1 True if unordered, greater than, or equal 54963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETULT, // 1 1 0 0 True if unordered or less than 550ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SETULE, // 1 1 0 1 True if unordered, less than, or equal 55163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUNE, // 1 1 1 0 True if unordered or not equal 55263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETTRUE, // 1 1 1 1 Always true (always folded) 55363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Don't care operations: undefined if the input is a nan. 55463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETFALSE2, // 1 X 0 0 0 Always false (always folded) 55563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETEQ, // 1 X 0 0 1 True if equal 55663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETGT, // 1 X 0 1 0 True if greater than 55763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETGE, // 1 X 0 1 1 True if greater than or equal 55863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETLT, // 1 X 1 0 0 True if less than 559ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SETLE, // 1 X 1 0 1 True if less than or equal 56063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETNE, // 1 X 1 1 0 True if not equal 56163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETTRUE2, // 1 X 1 1 1 Always true (always folded) 56263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 563410354fe0c052141dadeca939395743f8dd58e38Chris Lattner SETCC_INVALID // Marker value. 56463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner }; 56563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 56663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isSignedIntSetCC - Return true if this is a setcc instruction that 56763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// performs a signed comparison when used with integer operands. 56863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isSignedIntSetCC(CondCode Code) { 56963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Code == SETGT || Code == SETGE || Code == SETLT || Code == SETLE; 57063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 57163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 57263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isUnsignedIntSetCC - Return true if this is a setcc instruction that 57363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// performs an unsigned comparison when used with integer operands. 57463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isUnsignedIntSetCC(CondCode Code) { 57563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Code == SETUGT || Code == SETUGE || Code == SETULT || Code == SETULE; 57663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 57763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 57863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isTrueWhenEqual - Return true if the specified condition returns true if 57963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// the two operands to the condition are equal. Note that if one of the two 58063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operands is a NaN, this value is meaningless. 58163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isTrueWhenEqual(CondCode Cond) { 58263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return ((int)Cond & 1) != 0; 58363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 58463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 58563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getUnorderedFlavor - This function returns 0 if the condition is always 58663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// false if an operand is a NaN, 1 if the condition is always true if the 58763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operand is a NaN, and 2 if the condition is undefined if the operand is a 58863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// NaN. 58963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getUnorderedFlavor(CondCode Cond) { 59063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return ((int)Cond >> 3) & 3; 59163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 59263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 59363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCInverse - Return the operation corresponding to !(X op Y), where 59463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 'op' is a valid SetCC operation. 59563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCInverse(CondCode Operation, bool isInteger); 59663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 59763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCSwappedOperands - Return the operation corresponding to (Y op X) 59863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// when given the operation for (X op Y). 59963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCSwappedOperands(CondCode Operation); 60063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 60163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCOrOperation - Return the result of a logical OR between different 60263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// comparisons of identical values: ((X op1 Y) | (X op2 Y)). This 60363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// function returns SETCC_INVALID if it is not possible to represent the 60463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// resultant comparison. 60563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCOrOperation(CondCode Op1, CondCode Op2, bool isInteger); 60663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 60763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCAndOperation - Return the result of a logical AND between 60863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// different comparisons of identical values: ((X op1 Y) & (X op2 Y)). This 60963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// function returns SETCC_INVALID if it is not possible to represent the 61063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// resultant comparison. 61163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCAndOperation(CondCode Op1, CondCode Op2, bool isInteger); 61263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} // end llvm::ISD namespace 61363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 61463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 61563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner//===----------------------------------------------------------------------===// 61663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDOperand - Unlike LLVM values, Selection DAG nodes may return multiple 61763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// values as the result of a computation. Many nodes return multiple values, 61863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// from loads (which define a token and a return value) to ADDC (which returns 61963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// a result and a carry value), to calls (which may return an arbitrary number 62063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// of values). 62163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 62263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// As such, each use of a SelectionDAG computation must indicate the node that 62363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// computes it as well as which return value to use from that node. This pair 62463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// of information is represented with the SDOperand value type. 62563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 626f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattnerclass SDOperand { 627f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattnerpublic: 62863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode *Val; // The node defining the value we are using. 62963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned ResNo; // Which return value of the node we are using. 63063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 631ace44dbbabe9ee0498834957632df2af0dbf9c59Reid Spencer SDOperand() : Val(0), ResNo(0) {} 63263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDOperand(SDNode *val, unsigned resno) : Val(val), ResNo(resno) {} 63363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 63463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator==(const SDOperand &O) const { 63563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val == O.Val && ResNo == O.ResNo; 63663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 63763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator!=(const SDOperand &O) const { 63863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return !operator==(O); 63963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 64063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator<(const SDOperand &O) const { 64163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val < O.Val || (Val == O.Val && ResNo < O.ResNo); 64263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 64363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 64463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDOperand getValue(unsigned R) const { 64563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return SDOperand(Val, R); 64663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 64763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 648bfa284f69752c54f81bffc2b0d15d5c1e618a659Evan Cheng // isOperand - Return true if this node is an operand of N. 649bfa284f69752c54f81bffc2b0d15d5c1e618a659Evan Cheng bool isOperand(SDNode *N) const; 650bfa284f69752c54f81bffc2b0d15d5c1e618a659Evan Cheng 65163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getValueType - Return the ValueType of the referenced return value. 65263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 65363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline MVT::ValueType getValueType() const; 654ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 65563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Forwarding methods - These forward to the corresponding methods in SDNode. 65663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getOpcode() const; 6570442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner inline unsigned getNodeDepth() const; 65863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getNumOperands() const; 65963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline const SDOperand &getOperand(unsigned i) const; 6600f66a9172175aa7c3055333358170581c999219bNate Begeman inline bool isTargetOpcode() const; 6610f66a9172175aa7c3055333358170581c999219bNate Begeman inline unsigned getTargetOpcode() const; 662a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner 663a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner /// hasOneUse - Return true if there is exactly one operation using this 664a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner /// result value of the defining operator. 665a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner inline bool hasOneUse() const; 66663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 66763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 66863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 66963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// simplify_type specializations - Allow casting operators to work directly on 67063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDOperands as if they were SDNode*'s. 67163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnertemplate<> struct simplify_type<SDOperand> { 67263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner typedef SDNode* SimpleType; 67363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static SimpleType getSimplifiedValue(const SDOperand &Val) { 67463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return static_cast<SimpleType>(Val.Val); 67563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 67663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 67763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnertemplate<> struct simplify_type<const SDOperand> { 67863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner typedef SDNode* SimpleType; 67963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static SimpleType getSimplifiedValue(const SDOperand &Val) { 68063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return static_cast<SimpleType>(Val.Val); 68163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 68263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 68363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 68463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 68563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDNode - Represents one node in the SelectionDAG. 68663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 68763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass SDNode { 6880442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// NodeType - The operation that this node performs. 6890442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// 6900442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned short NodeType; 6910442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 6920442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// NodeDepth - Node depth is defined as MAX(Node depth of children)+1. This 6930442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// means that leaves have a depth of 1, things that use only leaves have a 6940442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// depth of 2, etc. 6950442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned short NodeDepth; 6960442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 697f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// OperandList - The values that are used by this operation. 6980442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// 699f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner SDOperand *OperandList; 700f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 701f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// ValueList - The types of the values this node defines. SDNode's may 702f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// define multiple values simultaneously. 703f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner MVT::ValueType *ValueList; 70463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 705f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// NumOperands/NumValues - The number of entries in the Operand/Value list. 706f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned short NumOperands, NumValues; 707b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 708b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner /// Prev/Next pointers - These pointers form the linked list of of the 709b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner /// AllNodes list in the current DAG. 710b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner SDNode *Prev, *Next; 711b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner friend struct ilist_traits<SDNode>; 71263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 71363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// Uses - These are all of the SDNode's that use a value produced by this 71463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// node. 71563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner std::vector<SDNode*> Uses; 71663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 717b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner virtual ~SDNode() { 718b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner assert(NumOperands == 0 && "Operand list not cleared before deletion"); 7193258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner NodeType = ISD::DELETED_NODE; 720b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner } 721b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 72263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner //===--------------------------------------------------------------------===// 72363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Accessors 72463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // 72563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned getOpcode() const { return NodeType; } 7260f66a9172175aa7c3055333358170581c999219bNate Begeman bool isTargetOpcode() const { return NodeType >= ISD::BUILTIN_OP_END; } 7270f66a9172175aa7c3055333358170581c999219bNate Begeman unsigned getTargetOpcode() const { 7280f66a9172175aa7c3055333358170581c999219bNate Begeman assert(isTargetOpcode() && "Not a target opcode!"); 7290f66a9172175aa7c3055333358170581c999219bNate Begeman return NodeType - ISD::BUILTIN_OP_END; 7300f66a9172175aa7c3055333358170581c999219bNate Begeman } 73163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 73263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner size_t use_size() const { return Uses.size(); } 73363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool use_empty() const { return Uses.empty(); } 73463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool hasOneUse() const { return Uses.size() == 1; } 73563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 7360442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// getNodeDepth - Return the distance from this node to the leaves in the 7370442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// graph. The leaves have a depth of 1. 7380442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned getNodeDepth() const { return NodeDepth; } 7390442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 7407ece380440238ad0630a225b85a09a2dbed1165aChris Lattner typedef std::vector<SDNode*>::const_iterator use_iterator; 7417ece380440238ad0630a225b85a09a2dbed1165aChris Lattner use_iterator use_begin() const { return Uses.begin(); } 7427ece380440238ad0630a225b85a09a2dbed1165aChris Lattner use_iterator use_end() const { return Uses.end(); } 7437ece380440238ad0630a225b85a09a2dbed1165aChris Lattner 744b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// hasNUsesOfValue - Return true if there are exactly NUSES uses of the 745b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// indicated value. This method ignores uses of other values defined by this 746b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// operation. 7474ee621125876cc954cba5280dd9395552755a871Evan Cheng bool hasNUsesOfValue(unsigned NUses, unsigned Value) const; 7484ee621125876cc954cba5280dd9395552755a871Evan Cheng 7494ee621125876cc954cba5280dd9395552755a871Evan Cheng // isOnlyUse - Return true if this node is the only use of N. 7504ee621125876cc954cba5280dd9395552755a871Evan Cheng bool isOnlyUse(SDNode *N) const; 751b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner 75280d8eaae05d9bcb25abf6c6f0385ec2554355f26Evan Cheng // isOperand - Return true if this node is an operand of N. 75380d8eaae05d9bcb25abf6c6f0385ec2554355f26Evan Cheng bool isOperand(SDNode *N) const; 75480d8eaae05d9bcb25abf6c6f0385ec2554355f26Evan Cheng 75563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getNumOperands - Return the number of values used by this operation. 75663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 757f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned getNumOperands() const { return NumOperands; } 75863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 75963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const SDOperand &getOperand(unsigned Num) const { 760f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(Num < NumOperands && "Invalid child # of SDNode!"); 761f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner return OperandList[Num]; 76263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 763f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner typedef const SDOperand* op_iterator; 764f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner op_iterator op_begin() const { return OperandList; } 765f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner op_iterator op_end() const { return OperandList+NumOperands; } 76650f5a51f41d36c519de68ff11fbf7c7c76f45416Chris Lattner 76763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 76863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getNumValues - Return the number of values defined/returned by this 76963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operator. 77063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 771f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned getNumValues() const { return NumValues; } 77263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 77363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getValueType - Return the type of a specified result. 77463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 77563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MVT::ValueType getValueType(unsigned ResNo) const { 776f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(ResNo < NumValues && "Illegal result number!"); 777f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner return ValueList[ResNo]; 77863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 7799eb59ec548b861d6ede05b4e6dc22aabf645e665Jeff Cohen 780f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner typedef const MVT::ValueType* value_iterator; 781f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner value_iterator value_begin() const { return ValueList; } 782f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner value_iterator value_end() const { return ValueList+NumValues; } 78363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 7846e6e3ceb080e5a8bdfd3258d883a06ebbd8a1965Chris Lattner /// getOperationName - Return the opcode of this operation for printing. 7856e6e3ceb080e5a8bdfd3258d883a06ebbd8a1965Chris Lattner /// 786efe58694050e48b61584b8454434dcd1ad886a71Chris Lattner const char* getOperationName(const SelectionDAG *G = 0) const; 78763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner void dump() const; 788efe58694050e48b61584b8454434dcd1ad886a71Chris Lattner void dump(const SelectionDAG *G) const; 78963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 79063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *) { return true; } 79163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 79263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 79363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 794109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 795109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner /// getValueTypeList - Return a pointer to the specified value type. 796109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner /// 797109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner static MVT::ValueType *getValueTypeList(MVT::ValueType VT); 79863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 7990442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner SDNode(unsigned NT, MVT::ValueType VT) : NodeType(NT), NodeDepth(1) { 800f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = 0; NumOperands = 0; 801109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner ValueList = getValueTypeList(VT); 802f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 1; 803b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 80463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 80563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode(unsigned NT, SDOperand Op) 8060442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner : NodeType(NT), NodeDepth(Op.Val->getNodeDepth()+1) { 807f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[1]; 808f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op; 809f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 1; 81063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner Op.Val->Uses.push_back(this); 811f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 812f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 813b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 81463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 81563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode(unsigned NT, SDOperand N1, SDOperand N2) 81663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner : NodeType(NT) { 8170442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner if (N1.Val->getNodeDepth() > N2.Val->getNodeDepth()) 8180442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner NodeDepth = N1.Val->getNodeDepth()+1; 8190442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner else 8200442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner NodeDepth = N2.Val->getNodeDepth()+1; 821f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[2]; 822f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = N1; 823f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = N2; 824f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 2; 82563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner N1.Val->Uses.push_back(this); N2.Val->Uses.push_back(this); 826f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 827f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 828b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 82963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 83063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode(unsigned NT, SDOperand N1, SDOperand N2, SDOperand N3) 83163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner : NodeType(NT) { 8320442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned ND = N1.Val->getNodeDepth(); 8330442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner if (ND < N2.Val->getNodeDepth()) 8340442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner ND = N2.Val->getNodeDepth(); 8350442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner if (ND < N3.Val->getNodeDepth()) 8360442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner ND = N3.Val->getNodeDepth(); 8370442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner NodeDepth = ND+1; 8380442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 839f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[3]; 840f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = N1; 841f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = N2; 842f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = N3; 843f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 3; 844f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 84563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner N1.Val->Uses.push_back(this); N2.Val->Uses.push_back(this); 84663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner N3.Val->Uses.push_back(this); 847f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 848f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 849b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 85063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 8512d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth SDNode(unsigned NT, SDOperand N1, SDOperand N2, SDOperand N3, SDOperand N4) 8522d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth : NodeType(NT) { 8532d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth unsigned ND = N1.Val->getNodeDepth(); 8542d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth if (ND < N2.Val->getNodeDepth()) 8552d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth ND = N2.Val->getNodeDepth(); 8562d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth if (ND < N3.Val->getNodeDepth()) 8572d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth ND = N3.Val->getNodeDepth(); 8582d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth if (ND < N4.Val->getNodeDepth()) 8592d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth ND = N4.Val->getNodeDepth(); 8602d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth NodeDepth = ND+1; 8612d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 862f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[4]; 863f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = N1; 864f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = N2; 865f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = N3; 866f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[3] = N4; 867f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 4; 868f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 8692d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth N1.Val->Uses.push_back(this); N2.Val->Uses.push_back(this); 8702d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth N3.Val->Uses.push_back(this); N4.Val->Uses.push_back(this); 871f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 872f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 873b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 8742d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth } 875f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner SDNode(unsigned Opc, const std::vector<SDOperand> &Nodes) : NodeType(Opc) { 876f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = Nodes.size(); 877f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[NumOperands]; 878f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 8790442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned ND = 0; 880f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner for (unsigned i = 0, e = Nodes.size(); i != e; ++i) { 881f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[i] = Nodes[i]; 882f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner SDNode *N = OperandList[i].Val; 883f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner N->Uses.push_back(this); 884f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner if (ND < N->getNodeDepth()) ND = N->getNodeDepth(); 8850442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner } 8860442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner NodeDepth = ND+1; 887f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 888f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 889b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 890f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner } 8911b95095857b78e12138c22e76c7936611c51355bChris Lattner 8921b95095857b78e12138c22e76c7936611c51355bChris Lattner /// MorphNodeTo - This clears the return value and operands list, and sets the 8931b95095857b78e12138c22e76c7936611c51355bChris Lattner /// opcode of the node to the specified value. This should only be used by 8941b95095857b78e12138c22e76c7936611c51355bChris Lattner /// the SelectionDAG class. 8951b95095857b78e12138c22e76c7936611c51355bChris Lattner void MorphNodeTo(unsigned Opc) { 8961b95095857b78e12138c22e76c7936611c51355bChris Lattner NodeType = Opc; 897f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner ValueList = 0; 898f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 0; 899b467f8af4125471361468ab91dbedba2abf2e09aChris Lattner 900b467f8af4125471361468ab91dbedba2abf2e09aChris Lattner // Clear the operands list, updating used nodes to remove this from their 901b467f8af4125471361468ab91dbedba2abf2e09aChris Lattner // use list. 902f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner for (op_iterator I = op_begin(), E = op_end(); I != E; ++I) 903f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner I->Val->removeUser(this); 904f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner delete [] OperandList; 905f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = 0; 906f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 0; 90763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 9081b95095857b78e12138c22e76c7936611c51355bChris Lattner 90963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner void setValueTypes(MVT::ValueType VT) { 910f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumValues == 0 && "Should not have values yet!"); 911109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner ValueList = getValueTypeList(VT); 912f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumValues = 1; 91363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 914109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner void setValueTypes(MVT::ValueType *List, unsigned NumVal) { 915f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumValues == 0 && "Should not have values yet!"); 916109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner ValueList = List; 917109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner NumValues = NumVal; 91863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 9191b95095857b78e12138c22e76c7936611c51355bChris Lattner 9201b95095857b78e12138c22e76c7936611c51355bChris Lattner void setOperands(SDOperand Op0) { 921f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 922f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[1]; 923f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 924f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 1; 9258c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Op0.Val->Uses.push_back(this); 9261b95095857b78e12138c22e76c7936611c51355bChris Lattner } 9271b95095857b78e12138c22e76c7936611c51355bChris Lattner void setOperands(SDOperand Op0, SDOperand Op1) { 928f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 929f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[2]; 930f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 931f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = Op1; 932f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 2; 9338c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 9341b95095857b78e12138c22e76c7936611c51355bChris Lattner } 9351b95095857b78e12138c22e76c7936611c51355bChris Lattner void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2) { 936f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 937f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[3]; 938f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 939f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = Op1; 940f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = Op2; 941f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 3; 9428c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 9438c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Op2.Val->Uses.push_back(this); 9448c3484c5181834e6b7060a6064ac769878101f23Chris Lattner } 945294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3) { 946f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 947f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[4]; 948f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 949f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = Op1; 950f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = Op2; 951f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[3] = Op3; 952f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 4; 953294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 954294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 955294a0a103d561864f2089b9f5948fb1a49801918Nate Begeman } 956d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3, 957d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner SDOperand Op4) { 958f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(NumOperands == 0 && "Should not have operands yet!"); 959f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList = new SDOperand[5]; 960f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[0] = Op0; 961f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[1] = Op1; 962f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[2] = Op2; 963f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[3] = Op3; 964f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner OperandList[4] = Op4; 965f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner NumOperands = 5; 966d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 967d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 968d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner Op4.Val->Uses.push_back(this); 969d54209fcf9af827fecfaf32685a0fb8caf7cadb1Chris Lattner } 97061ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3, 97161ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng SDOperand Op4, SDOperand Op5) { 97261ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng assert(NumOperands == 0 && "Should not have operands yet!"); 97361ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList = new SDOperand[6]; 97461ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[0] = Op0; 97561ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[1] = Op1; 97661ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[2] = Op2; 97761ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[3] = Op3; 97861ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[4] = Op4; 97961ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng OperandList[5] = Op5; 98061ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng NumOperands = 6; 98161ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 98261ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 98361ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng Op4.Val->Uses.push_back(this); Op5.Val->Uses.push_back(this); 98461ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng } 9858c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3, 9868c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth SDOperand Op4, SDOperand Op5, SDOperand Op6) { 9878c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth assert(NumOperands == 0 && "Should not have operands yet!"); 9888c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList = new SDOperand[7]; 9898c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[0] = Op0; 9908c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[1] = Op1; 9918c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[2] = Op2; 9928c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[3] = Op3; 9938c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[4] = Op4; 9948c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[5] = Op5; 9958c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth OperandList[6] = Op6; 9968c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth NumOperands = 7; 9978c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 9988c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 9998c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth Op4.Val->Uses.push_back(this); Op5.Val->Uses.push_back(this); 10008c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth Op6.Val->Uses.push_back(this); 10018c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth } 10027cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth void setOperands(SDOperand Op0, SDOperand Op1, SDOperand Op2, SDOperand Op3, 10037cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth SDOperand Op4, SDOperand Op5, SDOperand Op6, SDOperand Op7) { 10047cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth assert(NumOperands == 0 && "Should not have operands yet!"); 10057cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList = new SDOperand[8]; 10067cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[0] = Op0; 10077cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[1] = Op1; 10087cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[2] = Op2; 10097cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[3] = Op3; 10107cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[4] = Op4; 10117cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[5] = Op5; 10127cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[6] = Op6; 10137cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth OperandList[7] = Op7; 10147cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth NumOperands = 8; 10157cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth Op0.Val->Uses.push_back(this); Op1.Val->Uses.push_back(this); 10167cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth Op2.Val->Uses.push_back(this); Op3.Val->Uses.push_back(this); 10177cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth Op4.Val->Uses.push_back(this); Op5.Val->Uses.push_back(this); 10187cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth Op6.Val->Uses.push_back(this); Op7.Val->Uses.push_back(this); 10197cf11b4ab248d6ab7fb0d9df0b72baf158201abeAndrew Lenharth } 10208c6f1ee5aa376118f1cb7b16b62994fc255eac56Andrew Lenharth 10218c3484c5181834e6b7060a6064ac769878101f23Chris Lattner void addUser(SDNode *User) { 10228c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses.push_back(User); 10231b95095857b78e12138c22e76c7936611c51355bChris Lattner } 1024d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner void removeUser(SDNode *User) { 1025d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner // Remove this user from the operand's use list. 1026d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner for (unsigned i = Uses.size(); ; --i) { 1027d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner assert(i != 0 && "Didn't find user!"); 1028d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner if (Uses[i-1] == User) { 10298c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses[i-1] = Uses.back(); 10308c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses.pop_back(); 10318c3484c5181834e6b7060a6064ac769878101f23Chris Lattner return; 1032d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 1033d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 1034d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 103563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 103663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 103763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 103863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// Define inline functions from the SDOperand class. 103963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 104063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline unsigned SDOperand::getOpcode() const { 104163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getOpcode(); 104263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 10430442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattnerinline unsigned SDOperand::getNodeDepth() const { 10440442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner return Val->getNodeDepth(); 10450442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner} 104663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline MVT::ValueType SDOperand::getValueType() const { 104763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getValueType(ResNo); 104863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 104963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline unsigned SDOperand::getNumOperands() const { 105063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getNumOperands(); 105163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 105263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline const SDOperand &SDOperand::getOperand(unsigned i) const { 105363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getOperand(i); 105463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 10550f66a9172175aa7c3055333358170581c999219bNate Begemaninline bool SDOperand::isTargetOpcode() const { 10560f66a9172175aa7c3055333358170581c999219bNate Begeman return Val->isTargetOpcode(); 10570f66a9172175aa7c3055333358170581c999219bNate Begeman} 10580f66a9172175aa7c3055333358170581c999219bNate Begemaninline unsigned SDOperand::getTargetOpcode() const { 10590f66a9172175aa7c3055333358170581c999219bNate Begeman return Val->getTargetOpcode(); 10600f66a9172175aa7c3055333358170581c999219bNate Begeman} 1061a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattnerinline bool SDOperand::hasOneUse() const { 1062a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner return Val->hasNUsesOfValue(1, ResNo); 1063a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner} 106463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1065d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// HandleSDNode - This class is used to form a handle around another node that 1066d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// is persistant and is updated across invocations of replaceAllUsesWith on its 1067d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// operand. This node should be directly created by end-users and not added to 1068d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// the AllNodes list. 1069d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattnerclass HandleSDNode : public SDNode { 1070d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattnerpublic: 1071d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner HandleSDNode(SDOperand X) : SDNode(ISD::HANDLENODE, X) {} 1072d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner ~HandleSDNode() { 1073d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner MorphNodeTo(ISD::HANDLENODE); // Drops operand uses. 1074d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner } 1075d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner 1076d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner SDOperand getValue() const { return getOperand(0); } 1077d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner}; 1078d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner 107947725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerclass StringSDNode : public SDNode { 108047725d059b259f8a0c145478300c9e9caa006b59Chris Lattner std::string Value; 108147725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerprotected: 108247725d059b259f8a0c145478300c9e9caa006b59Chris Lattner friend class SelectionDAG; 108347725d059b259f8a0c145478300c9e9caa006b59Chris Lattner StringSDNode(const std::string &val) 108447725d059b259f8a0c145478300c9e9caa006b59Chris Lattner : SDNode(ISD::STRING, MVT::Other), Value(val) { 108547725d059b259f8a0c145478300c9e9caa006b59Chris Lattner } 108647725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerpublic: 108747725d059b259f8a0c145478300c9e9caa006b59Chris Lattner const std::string &getValue() const { return Value; } 108847725d059b259f8a0c145478300c9e9caa006b59Chris Lattner static bool classof(const StringSDNode *) { return true; } 108947725d059b259f8a0c145478300c9e9caa006b59Chris Lattner static bool classof(const SDNode *N) { 109047725d059b259f8a0c145478300c9e9caa006b59Chris Lattner return N->getOpcode() == ISD::STRING; 109147725d059b259f8a0c145478300c9e9caa006b59Chris Lattner } 109247725d059b259f8a0c145478300c9e9caa006b59Chris Lattner}; 109363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 109463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantSDNode : public SDNode { 109563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner uint64_t Value; 109663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 109763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1098056f9f61d071c6c583951678f2bf543a1316efccChris Lattner ConstantSDNode(bool isTarget, uint64_t val, MVT::ValueType VT) 1099056f9f61d071c6c583951678f2bf543a1316efccChris Lattner : SDNode(isTarget ? ISD::TargetConstant : ISD::Constant, VT), Value(val) { 110063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 110163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 110263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 110363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner uint64_t getValue() const { return Value; } 110463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 110563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int64_t getSignExtended() const { 110663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned Bits = MVT::getSizeInBits(getValueType(0)); 1107f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattner return ((int64_t)Value << (64-Bits)) >> (64-Bits); 110863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 110963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 111063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool isNullValue() const { return Value == 0; } 111163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool isAllOnesValue() const { 1112885a87ef8512a184a58a0ebe39705ccb221749efChris Lattner return Value == MVT::getIntVTBitMask(getValueType(0)); 111363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 111463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 111563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantSDNode *) { return true; } 111663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1117056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return N->getOpcode() == ISD::Constant || 1118056f9f61d071c6c583951678f2bf543a1316efccChris Lattner N->getOpcode() == ISD::TargetConstant; 111963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 112063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 112163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 112263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantFPSDNode : public SDNode { 112363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner double Value; 112463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 112563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1126ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner ConstantFPSDNode(bool isTarget, double val, MVT::ValueType VT) 1127ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner : SDNode(isTarget ? ISD::TargetConstantFP : ISD::ConstantFP, VT), 1128ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner Value(val) { 112963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 113063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 113163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 113263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner double getValue() const { return Value; } 113363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 113463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isExactlyValue - We don't rely on operator== working on double values, as 113563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// it returns true for things that are clearly not equal, like -0.0 and 0.0. 113663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// As such, this method can be used to do an exact bit-for-bit comparison of 113763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// two floating point values. 113858b968be853ef02d0f448e5e2c31676e361c210fJim Laskey bool isExactlyValue(double V) const; 113963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 114063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantFPSDNode *) { return true; } 114163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1142ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner return N->getOpcode() == ISD::ConstantFP || 1143ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner N->getOpcode() == ISD::TargetConstantFP; 114463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 114563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 114663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 114763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass GlobalAddressSDNode : public SDNode { 114863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner GlobalValue *TheGlobal; 1149404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int Offset; 115063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 115163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 115261ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng GlobalAddressSDNode(bool isTarget, const GlobalValue *GA, MVT::ValueType VT, 115361ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng int o=0) 1154404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng : SDNode(isTarget ? ISD::TargetGlobalAddress : ISD::GlobalAddress, VT), 1155404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng Offset(o) { 115663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner TheGlobal = const_cast<GlobalValue*>(GA); 115763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 115863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 115963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 116063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner GlobalValue *getGlobal() const { return TheGlobal; } 1161404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int getOffset() const { return Offset; } 116263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 116363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const GlobalAddressSDNode *) { return true; } 116463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1165f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner return N->getOpcode() == ISD::GlobalAddress || 1166f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner N->getOpcode() == ISD::TargetGlobalAddress; 116763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 116863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 116963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 117063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 117163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass FrameIndexSDNode : public SDNode { 117263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int FI; 117363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 117463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1175afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner FrameIndexSDNode(int fi, MVT::ValueType VT, bool isTarg) 1176afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner : SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex, VT), FI(fi) {} 117763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 117863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 117963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int getIndex() const { return FI; } 118063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 118163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const FrameIndexSDNode *) { return true; } 118263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1183afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner return N->getOpcode() == ISD::FrameIndex || 1184afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner N->getOpcode() == ISD::TargetFrameIndex; 118563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 118663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 118763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 118837efe6764568a3829fee26aba532283131d1a104Nate Begemanclass JumpTableSDNode : public SDNode { 118937efe6764568a3829fee26aba532283131d1a104Nate Begeman int JTI; 119037efe6764568a3829fee26aba532283131d1a104Nate Begemanprotected: 119137efe6764568a3829fee26aba532283131d1a104Nate Begeman friend class SelectionDAG; 119237efe6764568a3829fee26aba532283131d1a104Nate Begeman JumpTableSDNode(int jti, MVT::ValueType VT, bool isTarg) 119337efe6764568a3829fee26aba532283131d1a104Nate Begeman : SDNode(isTarg ? ISD::TargetJumpTable : ISD::JumpTable, VT), 119437efe6764568a3829fee26aba532283131d1a104Nate Begeman JTI(jti) {} 119537efe6764568a3829fee26aba532283131d1a104Nate Begemanpublic: 119637efe6764568a3829fee26aba532283131d1a104Nate Begeman 119737efe6764568a3829fee26aba532283131d1a104Nate Begeman int getIndex() const { return JTI; } 119837efe6764568a3829fee26aba532283131d1a104Nate Begeman 119937efe6764568a3829fee26aba532283131d1a104Nate Begeman static bool classof(const JumpTableSDNode *) { return true; } 120037efe6764568a3829fee26aba532283131d1a104Nate Begeman static bool classof(const SDNode *N) { 120137efe6764568a3829fee26aba532283131d1a104Nate Begeman return N->getOpcode() == ISD::JumpTable || 120237efe6764568a3829fee26aba532283131d1a104Nate Begeman N->getOpcode() == ISD::TargetJumpTable; 120337efe6764568a3829fee26aba532283131d1a104Nate Begeman } 120437efe6764568a3829fee26aba532283131d1a104Nate Begeman}; 120537efe6764568a3829fee26aba532283131d1a104Nate Begeman 120663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantPoolSDNode : public SDNode { 12075839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner Constant *C; 1208404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int Offset; 1209b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng unsigned Alignment; 121063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 121163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1212404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng ConstantPoolSDNode(bool isTarget, Constant *c, MVT::ValueType VT, 1213404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int o=0) 1214aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool, VT), 1215404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng C(c), Offset(o), Alignment(0) {} 1216404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng ConstantPoolSDNode(bool isTarget, Constant *c, MVT::ValueType VT, int o, 1217404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng unsigned Align) 1218b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool, VT), 1219404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng C(c), Offset(o), Alignment(Align) {} 122063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 122163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 12225839bf2b3bd22689d9dd0e9de66c2dce71d130aeChris Lattner Constant *get() const { return C; } 1223404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int getOffset() const { return Offset; } 1224ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner 1225ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner // Return the alignment of this constant pool object, which is either 0 (for 1226ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner // default alignment) or log2 of the desired value. 1227b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng unsigned getAlignment() const { return Alignment; } 122863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 122963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantPoolSDNode *) { return true; } 123063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1231aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner return N->getOpcode() == ISD::ConstantPool || 1232aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner N->getOpcode() == ISD::TargetConstantPool; 123363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 123463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 123563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 123663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass BasicBlockSDNode : public SDNode { 123763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MachineBasicBlock *MBB; 123863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 123963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 124063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BasicBlockSDNode(MachineBasicBlock *mbb) 124163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner : SDNode(ISD::BasicBlock, MVT::Other), MBB(mbb) {} 124263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 124363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 124463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MachineBasicBlock *getBasicBlock() const { return MBB; } 124563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 124663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const BasicBlockSDNode *) { return true; } 124763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 124863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return N->getOpcode() == ISD::BasicBlock; 124963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 125063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 125163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 12522d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthclass SrcValueSDNode : public SDNode { 12532d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth const Value *V; 1254691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth int offset; 12552d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthprotected: 12562d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth friend class SelectionDAG; 1257691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth SrcValueSDNode(const Value* v, int o) 1258691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth : SDNode(ISD::SRCVALUE, MVT::Other), V(v), offset(o) {} 12592d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 12602d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthpublic: 12612d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth const Value *getValue() const { return V; } 1262691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth int getOffset() const { return offset; } 12632d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 12642d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth static bool classof(const SrcValueSDNode *) { return true; } 12652d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth static bool classof(const SDNode *N) { 12662d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth return N->getOpcode() == ISD::SRCVALUE; 12672d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth } 12682d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth}; 12692d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 127063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1271d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattnerclass RegisterSDNode : public SDNode { 127263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned Reg; 127363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 127463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1275d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner RegisterSDNode(unsigned reg, MVT::ValueType VT) 1276d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner : SDNode(ISD::Register, VT), Reg(reg) {} 127763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 127863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 127963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned getReg() const { return Reg; } 128063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1281d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner static bool classof(const RegisterSDNode *) { return true; } 128263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1283d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return N->getOpcode() == ISD::Register; 128463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 128563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 128663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 128763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ExternalSymbolSDNode : public SDNode { 128863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const char *Symbol; 128963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 129063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 12912a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth ExternalSymbolSDNode(bool isTarget, const char *Sym, MVT::ValueType VT) 12922a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth : SDNode(isTarget ? ISD::TargetExternalSymbol : ISD::ExternalSymbol, VT), 12932a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth Symbol(Sym) { 129463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 129563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 129663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 129763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const char *getSymbol() const { return Symbol; } 129863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 129963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ExternalSymbolSDNode *) { return true; } 130063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 13012a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth return N->getOpcode() == ISD::ExternalSymbol || 13022a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth N->getOpcode() == ISD::TargetExternalSymbol; 130363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 130463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 130563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 13067cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattnerclass CondCodeSDNode : public SDNode { 130763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner ISD::CondCode Condition; 130863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 130963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 13107cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner CondCodeSDNode(ISD::CondCode Cond) 13117cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner : SDNode(ISD::CONDCODE, MVT::Other), Condition(Cond) { 131263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 131363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 131463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 13157cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::CondCode get() const { return Condition; } 131663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 13177cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner static bool classof(const CondCodeSDNode *) { return true; } 131863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 13197cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner return N->getOpcode() == ISD::CONDCODE; 132063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 132163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 132263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 132315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner/// VTSDNode - This class is used to represent MVT::ValueType's, which are used 132415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner/// to parameterize some operations. 132515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerclass VTSDNode : public SDNode { 132615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ValueType; 132715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerprotected: 132815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner friend class SelectionDAG; 132915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner VTSDNode(MVT::ValueType VT) 133015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner : SDNode(ISD::VALUETYPE, MVT::Other), ValueType(VT) {} 133115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerpublic: 133215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 133315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType getVT() const { return ValueType; } 133415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 133515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner static bool classof(const VTSDNode *) { return true; } 133615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner static bool classof(const SDNode *N) { 133715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner return N->getOpcode() == ISD::VALUETYPE; 133815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner } 133915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner}; 134015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 134115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 13421080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnerclass SDNodeIterator : public forward_iterator<SDNode, ptrdiff_t> { 13431080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNode *Node; 13441080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner unsigned Operand; 1345ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 13461080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator(SDNode *N, unsigned Op) : Node(N), Operand(Op) {} 13471080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnerpublic: 13481080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner bool operator==(const SDNodeIterator& x) const { 13491080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return Operand == x.Operand; 13501080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 13511080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner bool operator!=(const SDNodeIterator& x) const { return !operator==(x); } 13521080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 13531080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner const SDNodeIterator &operator=(const SDNodeIterator &I) { 13541080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner assert(I.Node == Node && "Cannot assign iterators to two different nodes!"); 13551080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner Operand = I.Operand; 13561080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return *this; 13571080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 1358ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 13591080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner pointer operator*() const { 13601080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return Node->getOperand(Operand).Val; 13611080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 13621080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner pointer operator->() const { return operator*(); } 1363ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 13641080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator& operator++() { // Preincrement 13651080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner ++Operand; 13661080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return *this; 13671080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 13681080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator operator++(int) { // Postincrement 1369ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SDNodeIterator tmp = *this; ++*this; return tmp; 13701080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 13711080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 13721080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static SDNodeIterator begin(SDNode *N) { return SDNodeIterator(N, 0); } 13731080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static SDNodeIterator end (SDNode *N) { 13741080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator(N, N->getNumOperands()); 13751080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 13761080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 13771080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner unsigned getOperand() const { return Operand; } 13781080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner const SDNode *getNode() const { return Node; } 13791080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 13801080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 13811080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SDNode*> { 13821080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SDNode NodeType; 13831080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SDNodeIterator ChildIteratorType; 13841080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static inline NodeType *getEntryNode(SDNode *N) { return N; } 1385ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman static inline ChildIteratorType child_begin(NodeType *N) { 13861080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator::begin(N); 13871080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 1388ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman static inline ChildIteratorType child_end(NodeType *N) { 13891080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator::end(N); 13901080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 13911080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 13921080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 1393b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate<> 1394b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnerstruct ilist_traits<SDNode> { 1395b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *getPrev(const SDNode *N) { return N->Prev; } 1396b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *getNext(const SDNode *N) { return N->Next; } 1397b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1398b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void setPrev(SDNode *N, SDNode *Prev) { N->Prev = Prev; } 1399b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void setNext(SDNode *N, SDNode *Next) { N->Next = Next; } 1400b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1401b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *createSentinel() { 1402b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner return new SDNode(ISD::EntryToken, MVT::Other); 1403b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner } 1404b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void destroySentinel(SDNode *N) { delete N; } 1405b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner //static SDNode *createNode(const SDNode &V) { return new SDNode(V); } 1406b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1407b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1408b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void addNodeToList(SDNode *NTy) {} 1409b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void removeNodeFromList(SDNode *NTy) {} 1410b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void transferNodesFromList(iplist<SDNode, ilist_traits> &L2, 1411b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner const ilist_iterator<SDNode> &X, 1412b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner const ilist_iterator<SDNode> &Y) {} 1413b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner}; 1414b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 141563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} // end llvm namespace 141663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 141763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#endif 1418