SelectionDAGNodes.h revision fc718542a3e73558af9c0272b0eea67a189e5397
163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner//===-- llvm/CodeGen/SelectionDAGNodes.h - SelectionDAG Nodes ---*- C++ -*-===// 2ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman// 363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// The LLVM Compiler Infrastructure 463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// 57ed47a13356daed2a34cd2209a31f92552e3bdd8Chris Lattner// This file is distributed under the University of Illinois Open Source 67ed47a13356daed2a34cd2209a31f92552e3bdd8Chris Lattner// 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 222d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth#include "llvm/Value.h" 23583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey#include "llvm/ADT/FoldingSet.h" 241080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner#include "llvm/ADT/GraphTraits.h" 251080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner#include "llvm/ADT/iterator" 268bb369b8072c919ef5802f639a52b17620201190Dale Johannesen#include "llvm/ADT/APFloat.h" 27d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng#include "llvm/CodeGen/ValueTypes.h" 2839931a3dbac1aa2fe2ec14f26001c8c29102940cJeff Cohen#include "llvm/Support/DataTypes.h" 2963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#include <cassert> 3063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnernamespace llvm { 3263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass SelectionDAG; 3463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass GlobalValue; 3563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass MachineBasicBlock; 36d6594ae54cfde4db4d30272192645c0a45fb9902Evan Chengclass MachineConstantPoolValue; 3763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass SDNode; 3876c1b97e4020faace8c95a127f1eab66c278fb58Chris Lattnertemplate <typename T> struct DenseMapInfo; 3963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnertemplate <typename T> struct simplify_type; 40b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate <typename T> struct ilist_traits; 41b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate<typename NodeTy, typename Traits> class iplist; 42b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate<typename NodeTy> class ilist_iterator; 4363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 440b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner/// SDVTList - This represents a list of ValueType's that has been intern'd by 450b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner/// a SelectionDAG. Instances of this simple value class are returned by 460b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner/// SelectionDAG::getVTList(...). 470b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner/// 480b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattnerstruct SDVTList { 490b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner const MVT::ValueType *VTs; 500b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner unsigned short NumVTs; 510b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner}; 520b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner 5363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// ISD namespace - This namespace contains an enum which represents all of the 5463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SelectionDAG node types and value types. 5563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 5663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnernamespace ISD { 57d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov namespace ParamFlags { 58d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov enum Flags { 59d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov NoFlagSet = 0, 60d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov ZExt = 1<<0, ///< Parameter should be zero extended 61d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov ZExtOffs = 0, 62d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov SExt = 1<<1, ///< Parameter should be sign extended 63d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov SExtOffs = 1, 64d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov InReg = 1<<2, ///< Parameter should be passed in register 65d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov InRegOffs = 2, 66d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov StructReturn = 1<<3, ///< Hidden struct-return pointer 67d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov StructReturnOffs = 3, 681aa7efbd2c98e761f50992197473304b99257ca9Rafael Espindola ByVal = 1<<4, ///< Struct passed by value 691aa7efbd2c98e761f50992197473304b99257ca9Rafael Espindola ByValOffs = 4, 7036397f50343639ce9a25996f2d790c656791ab92Duncan Sands Nest = 1<<5, ///< Parameter is nested function static chain 7136397f50343639ce9a25996f2d790c656791ab92Duncan Sands NestOffs = 5, 72594d37e21aea4ef841d9ee5d9c328c4bf1c6bed7Rafael Espindola ByValAlign = 0xF << 6, //< The alignment of the struct 73594d37e21aea4ef841d9ee5d9c328c4bf1c6bed7Rafael Espindola ByValAlignOffs = 6, 74594d37e21aea4ef841d9ee5d9c328c4bf1c6bed7Rafael Espindola ByValSize = 0x1ffff << 10, //< The size of the struct 75594d37e21aea4ef841d9ee5d9c328c4bf1c6bed7Rafael Espindola ByValSizeOffs = 10, 76d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov OrigAlignment = 0x1F<<27, 77d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov OrigAlignmentOffs = 27 78d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov }; 79d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov } 80d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov 8163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner //===--------------------------------------------------------------------===// 8263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// ISD::NodeType enum - This enum defines all of the operators valid in a 8363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// SelectionDAG. 8463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 8563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner enum NodeType { 863258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner // DELETED_NODE - This is an illegal flag value that is used to catch 873258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner // errors. This opcode is not a legal opcode for any node. 883258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner DELETED_NODE, 893258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner 908a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // EntryToken - This is the marker used to indicate the start of the region. 918a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner EntryToken, 928a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner 938c4bde36a339b1c538002e819daff84caae4cbadReid Spencer // Token factor - This node takes multiple tokens as input and produces a 948a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // single token result. This is used to represent the fact that the operand 958a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // operators are independent of each other. 968a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner TokenFactor, 97f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman 98f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // AssertSext, AssertZext - These nodes record if a register contains a 99f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // value that has already been zero or sign extended from a narrower type. 100f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // These nodes take two operands. The first is the node that has already 101f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // been extended, and the second is a value type node indicating the width 102f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman // of the extension 103f7f3d321916c1ef3a82b2a175a368a148b1ede46Nate Begeman AssertSext, AssertZext, 104ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 1058a496fcffdcba757412fc5cc6c772260ccfde000Chris Lattner // Various leaf nodes. 1061ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng STRING, BasicBlock, VALUETYPE, CONDCODE, Register, 1071ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng Constant, ConstantFP, 108b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio GlobalAddress, GlobalTLSAddress, FrameIndex, 109b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio JumpTable, ConstantPool, ExternalSymbol, 1101ab7d859cf5c490612799d7e132c0b1c39f8f497Evan Cheng 11182c3d8f81ab20dc7571f29ffc46a5bb1b7ed8323Andrew Lenharth // The address of the GOT 11282c3d8f81ab20dc7571f29ffc46a5bb1b7ed8323Andrew Lenharth GLOBAL_OFFSET_TABLE, 113bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman 114bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // FRAMEADDR, RETURNADDR - These nodes represent llvm.frameaddress and 115bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // llvm.returnaddress on the DAG. These nodes take one operand, the index 116bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // of the frame or return address to return. An index of zero corresponds 117bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // to the current function's frame or return address, an index of one to the 118bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // parent's frame or return address, and so on. 119bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman FRAMEADDR, RETURNADDR, 1202365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov 1212365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // FRAME_TO_ARGS_OFFSET - This node represents offset from frame pointer to 1222365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // first (possible) on-stack argument. This is needed for correct stack 1232365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // adjustment during unwind. 1242365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov FRAME_TO_ARGS_OFFSET, 125f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey 126f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey // RESULT, OUTCHAIN = EXCEPTIONADDR(INCHAIN) - This node represents the 127f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey // address of the exception block on entry to an landing pad block. 128f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey EXCEPTIONADDR, 129f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey 130f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey // RESULT, OUTCHAIN = EHSELECTION(INCHAIN, EXCEPTION) - This node represents 131f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey // the selection index of the exception thrown. 132f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey EHSELECTION, 133beec30eaf301bd6882cd06800b5175b94f033f9dAndrew Lenharth 1342365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // OUTCHAIN = EH_RETURN(INCHAIN, OFFSET, HANDLER) - This node represents 1352365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // 'eh_return' gcc dwarf builtin, which is used to return from 1362365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // exception. The general meaning is: adjust stack by OFFSET and pass 1372365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // execution to HANDLER. Many platform-related details also :) 1382365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov EH_RETURN, 1392365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov 140ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner // TargetConstant* - Like Constant*, but the DAG does not do any folding or 141ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner // simplification of the constant. 142056f9f61d071c6c583951678f2bf543a1316efccChris Lattner TargetConstant, 143ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner TargetConstantFP, 144f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner 145f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // TargetGlobalAddress - Like GlobalAddress, but the DAG does no folding or 146f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // anything else with this node, and this is valid in the target-specific 147f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner // dag, turning into a GlobalAddress operand. 148f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner TargetGlobalAddress, 149b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio TargetGlobalTLSAddress, 150afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner TargetFrameIndex, 15137efe6764568a3829fee26aba532283131d1a104Nate Begeman TargetJumpTable, 152aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner TargetConstantPool, 1532a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth TargetExternalSymbol, 15472601cac6051a9571ca4db3b32d6a73e40b40bd1Chris Lattner 155ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// RESULT = INTRINSIC_WO_CHAIN(INTRINSICID, arg1, arg2, ...) 156ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// This node represents a target intrinsic function with no side effects. 157ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// The first operand is the ID number of the intrinsic from the 158ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// llvm::Intrinsic namespace. The operands to the intrinsic follow. The 159ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// node has returns the result of the intrinsic. 160ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner INTRINSIC_WO_CHAIN, 161ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner 162ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// RESULT,OUTCHAIN = INTRINSIC_W_CHAIN(INCHAIN, INTRINSICID, arg1, ...) 163ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// This node represents a target intrinsic function with side effects that 164ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// returns a result. The first operand is a chain pointer. The second is 165ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// the ID number of the intrinsic from the llvm::Intrinsic namespace. The 166ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// operands to the intrinsic follow. The node has two results, the result 167ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// of the intrinsic and an output chain. 168ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner INTRINSIC_W_CHAIN, 16963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 170ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// OUTCHAIN = INTRINSIC_VOID(INCHAIN, INTRINSICID, arg1, arg2, ...) 171ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// This node represents a target intrinsic function with side effects that 172ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// does not return a result. The first operand is a chain pointer. The 173ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// second is the ID number of the intrinsic from the llvm::Intrinsic 174ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner /// namespace. The operands to the intrinsic follow. 175ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner INTRINSIC_VOID, 176ef8ef916348ad0da964687358e8be614e2470d67Chris Lattner 177d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner // CopyToReg - This node has three operands: a chain, a register number to 178d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner // set to this value, and a value. 17963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CopyToReg, 18063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 18163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // CopyFromReg - This node indicates that the input value is a virtual or 18263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // physical register that is defined outside of the scope of this 183ab2a7542546bf781fa373e20095be0e344f5b3ccDan Gohman // SelectionDAG. The register is available from the RegisterSDNode object. 18463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CopyFromReg, 18563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 186fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman // UNDEF - An undefined node 187fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman UNDEF, 188681ee1c1c3f7c3558c29a5bf3a668c1d0784c399Chris Lattner 189b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// FORMAL_ARGUMENTS(CHAIN, CC#, ISVARARG, FLAG0, ..., FLAGn) - This node 190b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// represents the formal arguments for a function. CC# is a Constant value 191b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// indicating the calling convention of the function, and ISVARARG is a 192b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// flag that indicates whether the function is varargs or not. This node 193b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// has one result value for each incoming argument, plus one for the output 194b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// chain. It must be custom legalized. See description of CALL node for 195b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// FLAG argument contents explanation. 196c1a8ad71e11123f1e3c8d9913a7f51978b9967d5Chris Lattner /// 197681ee1c1c3f7c3558c29a5bf3a668c1d0784c399Chris Lattner FORMAL_ARGUMENTS, 1986c0bfc723779366698d3936b63dcddc6164c2d33Chris Lattner 1996c0bfc723779366698d3936b63dcddc6164c2d33Chris Lattner /// RV1, RV2...RVn, CHAIN = CALL(CHAIN, CC#, ISVARARG, ISTAILCALL, CALLEE, 200b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// ARG0, FLAG0, ARG1, FLAG1, ... ARGn, FLAGn) 2016c0bfc723779366698d3936b63dcddc6164c2d33Chris Lattner /// This node represents a fully general function call, before the legalizer 202b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// runs. This has one result value for each argument / flag pair, plus 203b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// a chain result. It must be custom legalized. Flag argument indicates 204b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// misc. argument attributes. Currently: 205b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// Bit 0 - signness 206b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// Bit 1 - 'inreg' attribute 207b10308e440c80dd6ffb4b478f741ff7e5f30cb48Anton Korobeynikov /// Bit 2 - 'sret' attribute 208594d37e21aea4ef841d9ee5d9c328c4bf1c6bed7Rafael Espindola /// Bit 4 - 'byval' attribute 209594d37e21aea4ef841d9ee5d9c328c4bf1c6bed7Rafael Espindola /// Bit 5 - 'nest' attribute 210594d37e21aea4ef841d9ee5d9c328c4bf1c6bed7Rafael Espindola /// Bit 6-9 - alignment of byval structures 211594d37e21aea4ef841d9ee5d9c328c4bf1c6bed7Rafael Espindola /// Bit 10-26 - size of byval structures 21213a3cee13133711eb95174a004dca4421ccd1cd9Lauro Ramos Venancio /// Bits 31:27 - argument ABI alignment in the first argument piece and 21313a3cee13133711eb95174a004dca4421ccd1cd9Lauro Ramos Venancio /// alignment '1' in other argument pieces. 2146c0bfc723779366698d3936b63dcddc6164c2d33Chris Lattner CALL, 215fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman 21663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // EXTRACT_ELEMENT - This is used to get the first or second (determined by 21763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // a Constant, which is required to be operand #1), element of the aggregate 21863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // value specified as operand #0. This is only for use before legalization, 21963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // for values that will be broken into multiple registers. 22063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner EXTRACT_ELEMENT, 22163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 22263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BUILD_PAIR - This is the opposite of EXTRACT_ELEMENT in some ways. Given 22363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // two values of the same integer value type, this produces a value twice as 22463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // big. Like EXTRACT_ELEMENT, this can only be used before legalization. 22563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BUILD_PAIR, 226006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner 227006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // MERGE_VALUES - This node takes multiple discrete operands and returns 228006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // them all as its individual results. This nodes has exactly the same 229006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // number of inputs and outputs, and is only valid before legalization. 230006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // This node is useful for some pieces of the code generator that want to 231006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner // think about a single node with multiple results, not multiple nodes. 232006e3e3649b2e19762b7bc134292b781569685b0Chris Lattner MERGE_VALUES, 23363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 234615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner // Simple integer binary arithmetic operators. 235bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner ADD, SUB, MUL, SDIV, UDIV, SREM, UREM, 236fdd04d5ddecb1d1f3030839520109308137b73dcDan Gohman 237fdd04d5ddecb1d1f3030839520109308137b73dcDan Gohman // SMUL_LOHI/UMUL_LOHI - Multiply two integers of type iN, producing 238b36904be918b72cc4c714552d42d6a713f27bbf5Duncan Sands // a signed/unsigned value of type i[2*N], and return the full value as 239fdd04d5ddecb1d1f3030839520109308137b73dcDan Gohman // two results, each of type iN. 240fdd04d5ddecb1d1f3030839520109308137b73dcDan Gohman SMUL_LOHI, UMUL_LOHI, 241fdd04d5ddecb1d1f3030839520109308137b73dcDan Gohman 242fdd04d5ddecb1d1f3030839520109308137b73dcDan Gohman // SDIVREM/UDIVREM - Divide two integers and produce both a quotient and 243fdd04d5ddecb1d1f3030839520109308137b73dcDan Gohman // remainder result. 244fdd04d5ddecb1d1f3030839520109308137b73dcDan Gohman SDIVREM, UDIVREM, 245615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner 24655e34eb31741f7902445cfa94fddde7a6910c408Chris Lattner // CARRY_FALSE - This node is used when folding other nodes, 24755e34eb31741f7902445cfa94fddde7a6910c408Chris Lattner // like ADDC/SUBC, which indicate the carry result is always false. 24855e34eb31741f7902445cfa94fddde7a6910c408Chris Lattner CARRY_FALSE, 24955e34eb31741f7902445cfa94fddde7a6910c408Chris Lattner 250551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Carry-setting nodes for multiple precision addition and subtraction. 251551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // These nodes take two operands of the same value type, and produce two 252551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // results. The first result is the normal add or sub result, the second 253551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // result is the carry flag result. 254551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman ADDC, SUBC, 255551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 256551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Carry-using nodes for multiple precision addition and subtraction. These 257551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // nodes take three operands: The first two are the normal lhs and rhs to 258551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // the add or sub, and the third is the input carry flag. These nodes 259551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // produce two results; the normal result of the add or sub, and the output 260551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // carry flag. These nodes both read and write a carry flag to allow them 261551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // to them to be chained together for add and sub of arbitrarily large 262551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // values. 263551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman ADDE, SUBE, 264551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 265615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner // Simple binary floating point operators. 266615c2d0920862ae7d4d766ee3da660ecf2197308Chris Lattner FADD, FSUB, FMUL, FDIV, FREM, 26738bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner 26838bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner // FCOPYSIGN(X, Y) - Return the value of X with the sign of Y. NOTE: This 26938bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner // DAG node does not require that X and Y have the same type, just that they 27038bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner // are both floating point. X and the result must have the same type. 27138bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner // FCOPYSIGN(f32, f64) is allowed. 27238bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner FCOPYSIGN, 273fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner 2741a3048bb8e0f3de0b4e56704c15c556c71565f4bChris Lattner // INT = FGETSIGN(FP) - Return the sign bit of the specified floating point 2751a3048bb8e0f3de0b4e56704c15c556c71565f4bChris Lattner // value as an integer 0/1 value. 2761a3048bb8e0f3de0b4e56704c15c556c71565f4bChris Lattner FGETSIGN, 2771a3048bb8e0f3de0b4e56704c15c556c71565f4bChris Lattner 278664e9546d674096c5a012536f1a424b1681ece51Dan Gohman /// BUILD_VECTOR(ELT0, ELT1, ELT2, ELT3,...) - Return a vector 27922232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// with the specified, possibly variable, elements. The number of elements 28022232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner /// is required to be a power of two. 28122232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner BUILD_VECTOR, 28222232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner 2837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// INSERT_VECTOR_ELT(VECTOR, VAL, IDX) - Returns VECTOR with the element 2847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// at IDX replaced with VAL. 28522232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner INSERT_VECTOR_ELT, 2864b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner 2874b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner /// EXTRACT_VECTOR_ELT(VECTOR, IDX) - Returns a single element from VECTOR 2887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// identified by the (potentially variable) element number IDX. 2894b8db6c453fd3a7b07bc7c0e8092018530701ffdChris Lattner EXTRACT_VECTOR_ELT, 29022232f659bec0f4c23ec46445d3bd3c4deb68686Chris Lattner 2917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// CONCAT_VECTORS(VECTOR0, VECTOR1, ...) - Given a number of values of 2927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// vector type with the same length and element type, this produces a 2937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// concatenated vector result value, with length equal to the sum of the 294b6f5b00c3bad3415d3f2ee1a6d5ee5a6f66a4540Dan Gohman /// lengths of the input vectors. 2957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman CONCAT_VECTORS, 2966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 2977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// EXTRACT_SUBVECTOR(VECTOR, IDX) - Returns a subvector from VECTOR (an 2987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// vector value) starting with the (potentially variable) element number 2997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// IDX, which must be a multiple of the result vector length. 3007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman EXTRACT_SUBVECTOR, 3016595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 30249c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// VECTOR_SHUFFLE(VEC1, VEC2, SHUFFLEVEC) - Returns a vector, of the same 30349c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// type as VEC1/VEC2. SHUFFLEVEC is a BUILD_VECTOR of constant int values 30449c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// (regardless of whether its datatype is legal or not) that indicate 30549c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// which value each result element will get. The elements of VEC1/VEC2 are 30649c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// enumerated in order. This is quite similar to the Altivec 'vperm' 30749c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// instruction, except that the indices must be constants and are in terms 30849c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner /// of the element size of VEC1/VEC2, not in terms of bytes. 30949c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner VECTOR_SHUFFLE, 31049c6d3eba8869cf945f6c55ea243466e2b406fe8Chris Lattner 311210721aecc0916315f61660dc387a96b89ec423bChris Lattner /// SCALAR_TO_VECTOR(VAL) - This represents the operation of loading a 312a95afe2b5fb7a716ff4cc7bb623995a0a4c56411Nate Begeman /// scalar value into element 0 of the resultant vector type. The top 313a95afe2b5fb7a716ff4cc7bb623995a0a4c56411Nate Begeman /// elements 1 to N-1 of the N-element vector are undefined. 314210721aecc0916315f61660dc387a96b89ec423bChris Lattner SCALAR_TO_VECTOR, 315210721aecc0916315f61660dc387a96b89ec423bChris Lattner 316557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb // EXTRACT_SUBREG - This node is used to extract a sub-register value. 317557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb // This node takes a superreg and a constant sub-register index as operands. 318557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb EXTRACT_SUBREG, 319557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb 320557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb // INSERT_SUBREG - This node is used to insert a sub-register value. 321557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb // This node takes a superreg, a subreg value, and a constant sub-register 322557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb // index as operands. 323557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb INSERT_SUBREG, 324557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb 325bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner // MULHU/MULHS - Multiply high - Multiply two integers of type iN, producing 326b36904be918b72cc4c714552d42d6a713f27bbf5Duncan Sands // an unsigned/signed value of type i[2*N], then return the top part. 327bede0b7dd7c70792b09f6d38f6f2dfe7c1feb1d1Chris Lattner MULHU, MULHS, 32863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 32935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // Bitwise operators - logical and, logical or, logical xor, shift left, 33035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // shift right algebraic (shift in sign bits), shift right logical (shift in 33135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman // zeroes), rotate left, rotate right, and byteswap. 33235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman AND, OR, XOR, SHL, SRA, SRL, ROTL, ROTR, BSWAP, 33363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 334691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Counting operators 335691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth CTTZ, CTLZ, CTPOP, 336691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth 337fa984b61e42c94ad7e66cf2880ca826dba488d30Chris Lattner // Select(COND, TRUEVAL, FALSEVAL) 3389373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SELECT, 3399373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 3409373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // Select with condition operator - This selects between a true value and 3419373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // a false value (ops #2 and #3) based on the boolean result of comparing 3429373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // the lhs and rhs (ops #0 and #1) of a conditional expression with the 3439373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman // condition code in op #4, a CondCodeSDNode. 3449373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SELECT_CC, 34563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 34663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // SetCC operator - This evaluates to a boolean (i1) true value if the 3477cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // condition is true. The operands to this are the left and right operands 3487cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // to compare (ops #0, and #1) and the condition code to compare them with 3497cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner // (op #2) as a CondCodeSDNode. 35063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETCC, 35163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 35214c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded 35314c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // integer shift operations, just like ADD/SUB_PARTS. The operation 35414c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner // ordering is: 3556b8f2d649c1e96e0222be9de1e5d6c79e3eef021Chris Lattner // [Lo,Hi] = op [LoLHS,HiLHS], Amt 35614c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner SHL_PARTS, SRA_PARTS, SRL_PARTS, 35714c5b53c037a6a175118ed1a7d7e0e74153d56c4Chris Lattner 35863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Conversion operators. These are all single input single output 35963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // operations. For all of these, the result type must be strictly 36063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // wider or narrower (depending on the operation) than the source 36163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // type. 36263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 36363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // SIGN_EXTEND - Used for integer types, replicating the sign bit 36463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // into new bits. 36563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SIGN_EXTEND, 36663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 36763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // ZERO_EXTEND - Used for integer types, zeroing the new bits. 36863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner ZERO_EXTEND, 36963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3707e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner // ANY_EXTEND - Used for integer types. The high bits are undefined. 3717e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner ANY_EXTEND, 3727e122db776d9731dfe5acb7faa9da4f3c33ee5a1Chris Lattner 37363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // TRUNCATE - Completely drop the high bits. 37463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner TRUNCATE, 37563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 3761645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // [SU]INT_TO_FP - These operators convert integers (whose interpreted sign 3771645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner // depends on the first letter) to floating point. 3781645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner SINT_TO_FP, 3791645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner UINT_TO_FP, 3801645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner 381ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // SIGN_EXTEND_INREG - This operator atomically performs a SHL/SRA pair to 382ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // sign extend a small value in a large integer register (e.g. sign 383ea5761068956b157832d67bcc9d5e8ba706f545cChris Lattner // extending the low 8 bits of a 32-bit register to fill the top 24 bits 38415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // with the 7th bit). The size of the smaller type is indicated by the 1th 38515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner // operand, a ValueType node. 386859157daee6a4b49e99921832e1dde065167b317Chris Lattner SIGN_EXTEND_INREG, 387859157daee6a4b49e99921832e1dde065167b317Chris Lattner 3880bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// FP_TO_[US]INT - Convert a floating point value to a signed or unsigned 3890bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// integer. 3901645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner FP_TO_SINT, 3911645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner FP_TO_UINT, 3921645ed0b93901ec678cd54024c8b09bca632b296Chris Lattner 3930bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// X = FP_ROUND(Y, TRUNC) - Rounding 'Y' from a larger floating point type 3940bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// down to the precision of the destination VT. TRUNC is a flag, which is 3950bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// always an integer that is zero or one. If TRUNC is 0, this is a 3960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// normal rounding, if it is 1, this FP_ROUND is known to not change the 3970bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// value of Y. 3980bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// 3990bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// The TRUNC = 1 case is used in cases where we know that the value will 4000bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// not be modified by the node, because Y is not using any of the extra 4010bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// precision of source type. This allows certain transformations like 4020bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// FP_EXTEND(FP_ROUND(X,1)) -> X which are not safe for 4030bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// FP_EXTEND(FP_ROUND(X,0)) because the extra bits aren't removed. 40463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner FP_ROUND, 4050bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner 4061a0248690aaa9f7baaf1247e5f65a1c0c9e3783cDan Gohman // FLT_ROUNDS_ - Returns current rounding mode: 407917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // -1 Undefined 408917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // 0 Round to 0 409917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // 1 Round to nearest 410917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // 2 Round to +inf 411917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // 3 Round to -inf 4121a0248690aaa9f7baaf1247e5f65a1c0c9e3783cDan Gohman FLT_ROUNDS_, 413917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov 4140bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// X = FP_ROUND_INREG(Y, VT) - This operator takes an FP register, and 4150bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// rounds it to a floating point value. It then promotes it and returns it 4160bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// in a register of the same size. This operation effectively just 4170bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// discards excess precision. The type to round down to is specified by 4180bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// the VT operand, a VTSDNode. 419859157daee6a4b49e99921832e1dde065167b317Chris Lattner FP_ROUND_INREG, 420859157daee6a4b49e99921832e1dde065167b317Chris Lattner 4210bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner /// X = FP_EXTEND(Y) - Extend a smaller FP type into a larger FP type. 42263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner FP_EXTEND, 42363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 4241ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner // BIT_CONVERT - Theis operator converts between integer and FP values, as 4251ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner // if one was stored to memory as integer and the other was loaded from the 42680f55abf009c86bc03821e10746832f88f8a735fChris Lattner // same address (or equivalently for vector format conversions, etc). The 42780f55abf009c86bc03821e10746832f88f8a735fChris Lattner // source and result are required to have the same bit size (e.g. 42880f55abf009c86bc03821e10746832f88f8a735fChris Lattner // f32 <-> i32). This can also be used for int-to-int or fp-to-fp 42980f55abf009c86bc03821e10746832f88f8a735fChris Lattner // conversions, but that is a noop, deleted by getNode(). 4301ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner BIT_CONVERT, 4311ac1c4b9d2877bd2d15bcf578bc617a605d815b0Chris Lattner 43207f04fd574a59c690f297fd10c2e0dd14093675eDan Gohman // FNEG, FABS, FSQRT, FSIN, FCOS, FPOWI, FPOW - Perform unary floating point 43307f04fd574a59c690f297fd10c2e0dd14093675eDan Gohman // negation, absolute value, square root, sine and cosine, powi, and pow 434dd2afb0e1f65bc41d2c0053468fcddfd696a8231Chris Lattner // operations. 43507f04fd574a59c690f297fd10c2e0dd14093675eDan Gohman FNEG, FABS, FSQRT, FSIN, FCOS, FPOWI, FPOW, 43638bf3bffe3abfd00169d6dcf4fad7e2197808dbfChris Lattner 4378862ef148100070b7bf28beead3951464250c926Evan Cheng // LOAD and STORE have token chains as their first operand, then the same 4388862ef148100070b7bf28beead3951464250c926Evan Cheng // operands as an LLVM load/store instruction, then an offset node that 4398862ef148100070b7bf28beead3951464250c926Evan Cheng // is added / subtracted from the base pointer to form the address (for 4408862ef148100070b7bf28beead3951464250c926Evan Cheng // indexed memory ops). 44163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner LOAD, STORE, 4425fbb5d2459a5410590f285250faa604576308a93Nate Begeman 44363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // DYNAMIC_STACKALLOC - Allocate some number of bytes on the stack aligned 44457fc00d5cf47343ba762493b8781ca0b14489c35Anton Korobeynikov // to a specified boundary. This node always has two return values: a new 44557fc00d5cf47343ba762493b8781ca0b14489c35Anton Korobeynikov // stack pointer value and a chain. The first operand is the token chain, 44657fc00d5cf47343ba762493b8781ca0b14489c35Anton Korobeynikov // the second is the number of bytes to allocate, and the third is the 44757fc00d5cf47343ba762493b8781ca0b14489c35Anton Korobeynikov // alignment boundary. The size is guaranteed to be a multiple of the stack 44857fc00d5cf47343ba762493b8781ca0b14489c35Anton Korobeynikov // alignment, and the alignment is guaranteed to be bigger than the stack 44974fe063e90045931eefaba561730e6a9175ced78Chris Lattner // alignment (if required) or 0 to get standard stack alignment. 45063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner DYNAMIC_STACKALLOC, 45163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 45263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Control flow instructions. These all have token chains. 453ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 45463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BR - Unconditional branch. The first operand is the chain 45563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // operand, the second is the MBB to branch to. 45663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BR, 45763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 45837efe6764568a3829fee26aba532283131d1a104Nate Begeman // BRIND - Indirect branch. The first operand is the chain, the second 45937efe6764568a3829fee26aba532283131d1a104Nate Begeman // is the value to branch to, which must be of the same type as the target's 46037efe6764568a3829fee26aba532283131d1a104Nate Begeman // pointer type. 46137efe6764568a3829fee26aba532283131d1a104Nate Begeman BRIND, 462c41cd9c391f1f69adf416145a5a1308d7ce342fcEvan Cheng 463c41cd9c391f1f69adf416145a5a1308d7ce342fcEvan Cheng // BR_JT - Jumptable branch. The first operand is the chain, the second 464c41cd9c391f1f69adf416145a5a1308d7ce342fcEvan Cheng // is the jumptable index, the last one is the jumptable entry index. 465c41cd9c391f1f69adf416145a5a1308d7ce342fcEvan Cheng BR_JT, 46637efe6764568a3829fee26aba532283131d1a104Nate Begeman 46763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BRCOND - Conditional branch. The first operand is the chain, 46863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // the second is the condition, the third is the block to branch 46963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // to if the condition is true. 47063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner BRCOND, 47163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 4727cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // BR_CC - Conditional branch. The behavior is like that of SELECT_CC, in 4737cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // that the condition is represented as condition code, and two nodes to 4747cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // compare, rather than as a combined SetCC node. The operands in order are 4757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // chain, cc, lhs, rhs, block to branch to if condition is true. 4767cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman BR_CC, 4777cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 47863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // RET - Return from function. The first operand is the chain, 4798e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng // and any subsequent operands are pairs of return value and return value 4808e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng // signness for the function. This operation can have variable number of 4818e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng // operands. 48263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner RET, 48363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 4847572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // INLINEASM - Represents an inline asm block. This node always has two 4857572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // return values: a chain and a flag result. The inputs are as follows: 4867572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #0 : Input chain. 4877572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #1 : a ExternalSymbolSDNode with a pointer to the asm string. 4887572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #2n+2: A RegisterNode. 4897572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #2n+3: A TargetConstant, indicating if the reg is a use/def 4907572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner // Operand #last: Optional, an incoming flag. 4917572eb81eee93b0c666ddc5f5ff0ff72f17574fdChris Lattner INLINEASM, 4921ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey 4931ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey // LABEL - Represents a label in mid basic block used to track 4941ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey // locations needed for debug and exception handling tables. This node 4951ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey // returns a chain. 4961ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey // Operand #0 : input chain. 4971ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey // Operand #1 : module unique number use to identify the label. 498bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng // Operand #2 : 0 indicates a debug label (e.g. stoppoint), 1 indicates 499bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng // a EH label, 2 indicates unknown label type. 5001ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey LABEL, 501a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 502a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng // DECLARE - Represents a llvm.dbg.declare intrinsic. It's used to track 503a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng // local variable declarations for debugging information. First operand is 504a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng // a chain, while the next two operands are first two arguments (address 505a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng // and variable) of a llvm.dbg.declare instruction. 506a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng DECLARE, 507f09f2e304dc82010d2e02a9b40a8c5fb0091490cJim Laskey 5085a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // STACKSAVE - STACKSAVE has one operand, an input chain. It produces a 5095a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // value, the same type as the pointer type for the system, and an output 5105a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // chain. 5115a67afc118d47a0061ca9809c763451ea3125306Chris Lattner STACKSAVE, 5125a67afc118d47a0061ca9809c763451ea3125306Chris Lattner 5135a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // STACKRESTORE has two operands, an input chain and a pointer to restore to 5145a67afc118d47a0061ca9809c763451ea3125306Chris Lattner // it returns an output chain. 5155a67afc118d47a0061ca9809c763451ea3125306Chris Lattner STACKRESTORE, 5165a67afc118d47a0061ca9809c763451ea3125306Chris Lattner 5175c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola // MEMSET/MEMCPY/MEMMOVE - The first operand is the chain. The following 5185c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola // correspond to the operands of the LLVM intrinsic functions and the last 5195c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola // one is AlwaysInline. The only result is a token chain. The alignment 5205c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola // argument is guaranteed to be a Constant node. 521ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMSET, 522ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMMOVE, 523ef36aa75d7df2bb67e8bfb0da7c43c1b331611e4Chris Lattner MEMCPY, 524ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 52516cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // CALLSEQ_START/CALLSEQ_END - These operators mark the beginning and end of 52616cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // a call sequence, and carry arbitrary information that target might want 52716cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // to know. The first operand is a chain, the rest are specified by the 52816cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner // target and not touched by the DAG optimizers. 52916cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner CALLSEQ_START, // Beginning of a call sequence 53016cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner CALLSEQ_END, // End of a call sequence 531acc398c195a697795bff3245943d104eb19192b9Nate Begeman 532acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VAARG - VAARG has three operands: an input chain, a pointer, and a 533acc398c195a697795bff3245943d104eb19192b9Nate Begeman // SRCVALUE. It returns a pair of values: the vaarg value and a new chain. 534acc398c195a697795bff3245943d104eb19192b9Nate Begeman VAARG, 535acc398c195a697795bff3245943d104eb19192b9Nate Begeman 536acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VACOPY - VACOPY has five operands: an input chain, a destination pointer, 537acc398c195a697795bff3245943d104eb19192b9Nate Begeman // a source pointer, a SRCVALUE for the destination, and a SRCVALUE for the 538acc398c195a697795bff3245943d104eb19192b9Nate Begeman // source. 539acc398c195a697795bff3245943d104eb19192b9Nate Begeman VACOPY, 540acc398c195a697795bff3245943d104eb19192b9Nate Begeman 541acc398c195a697795bff3245943d104eb19192b9Nate Begeman // VAEND, VASTART - VAEND and VASTART have three operands: an input chain, a 542acc398c195a697795bff3245943d104eb19192b9Nate Begeman // pointer, and a SRCVALUE. 543acc398c195a697795bff3245943d104eb19192b9Nate Begeman VAEND, VASTART, 54463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 545334dc1f58d617dcff969a2e107febaae42bbc883Evan Cheng // SRCVALUE - This corresponds to a Value*, and is used to associate memory 546334dc1f58d617dcff969a2e107febaae42bbc883Evan Cheng // locations with their value. This allows one use alias analysis 547334dc1f58d617dcff969a2e107febaae42bbc883Evan Cheng // information in the backend. 54821074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner SRCVALUE, 54921074f43ed5165828717ea3606eb2bd222a39b26Chris Lattner 550e3f570c3f9048bc71a9f5841343eae63719e439bMisha Brukman // PCMARKER - This corresponds to the pcmarker intrinsic. 55195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth PCMARKER, 55263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 553aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth // READCYCLECOUNTER - This corresponds to the readcyclecounter intrinsic. 5548b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // The only operand is a chain and a value and a chain are produced. The 5558b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // value is the contents of the architecture specific cycle counter like 5568b91c77385a055474d271aa8c10f0382fdeaafebAndrew Lenharth // register (or other high accuracy low latency clock source) 557aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth READCYCLECOUNTER, 558aeef8fc5c6124a34bd2a723071a3982b559c26f2Andrew Lenharth 559d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner // HANDLENODE node - Used as a handle for various purposes. 560d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner HANDLENODE, 5612d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 56247725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // LOCATION - This node is used to represent a source location for debug 56347725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // info. It takes token chain as input, then a line number, then a column 56447725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // number, then a filename, then a working dir. It produces a token chain 56547725d059b259f8a0c145478300c9e9caa006b59Chris Lattner // as output. 56647725d059b259f8a0c145478300c9e9caa006b59Chris Lattner LOCATION, 56747725d059b259f8a0c145478300c9e9caa006b59Chris Lattner 568f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey // DEBUG_LOC - This node is used to represent source line information 569abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // embedded in the code. It takes a token chain as input, then a line 57044c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey // number, then a column then a file id (provided by MachineModuleInfo.) It 571abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey // produces a token chain as output. 572f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey DEBUG_LOC, 57336397f50343639ce9a25996f2d790c656791ab92Duncan Sands 57436397f50343639ce9a25996f2d790c656791ab92Duncan Sands // TRAMPOLINE - This corresponds to the init_trampoline intrinsic. 57536397f50343639ce9a25996f2d790c656791ab92Duncan Sands // It takes as input a token chain, the pointer to the trampoline, 57636397f50343639ce9a25996f2d790c656791ab92Duncan Sands // the pointer to the nested function, the pointer to pass for the 57736397f50343639ce9a25996f2d790c656791ab92Duncan Sands // 'nest' parameter, a SRCVALUE for the trampoline and another for 57836397f50343639ce9a25996f2d790c656791ab92Duncan Sands // the nested function (allowing targets to access the original 579f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Function*). It produces the result of the intrinsic and a token 580f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // chain as output. 58136397f50343639ce9a25996f2d790c656791ab92Duncan Sands TRAMPOLINE, 58236397f50343639ce9a25996f2d790c656791ab92Duncan Sands 58366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // TRAP - Trapping instruction 58466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TRAP, 58566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov 58663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // BUILTIN_OP_END - This must be the last enum value in this list. 587410354fe0c052141dadeca939395743f8dd58e38Chris Lattner BUILTIN_OP_END 58863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner }; 58963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 590322dcd379eb19ea8d01478a661920ea1ce62fa0dChris Lattner /// Node predicates 591322dcd379eb19ea8d01478a661920ea1ce62fa0dChris Lattner 592a8df166fbef047c90adba3c673162a1b1f6681c4Evan Cheng /// isBuildVectorAllOnes - Return true if the specified node is a 593322dcd379eb19ea8d01478a661920ea1ce62fa0dChris Lattner /// BUILD_VECTOR where all of the elements are ~0 or undef. 594a8df166fbef047c90adba3c673162a1b1f6681c4Evan Cheng bool isBuildVectorAllOnes(const SDNode *N); 5954a147842eb24a7611fcd7bfb37c55185b4664927Evan Cheng 5964a147842eb24a7611fcd7bfb37c55185b4664927Evan Cheng /// isBuildVectorAllZeros - Return true if the specified node is a 5974a147842eb24a7611fcd7bfb37c55185b4664927Evan Cheng /// BUILD_VECTOR where all of the elements are 0 or undef. 5984a147842eb24a7611fcd7bfb37c55185b4664927Evan Cheng bool isBuildVectorAllZeros(const SDNode *N); 599bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng 600bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng /// isDebugLabel - Return true if the specified node represents a debug 601fc718542a3e73558af9c0272b0eea67a189e5397Evan Cheng /// label (i.e. ISD::LABEL or TargetInstrInfo::LABEL node and third operand 602bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng /// is 0). 603bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng bool isDebugLabel(const SDNode *N); 604322dcd379eb19ea8d01478a661920ea1ce62fa0dChris Lattner 60563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner //===--------------------------------------------------------------------===// 606144d8f09e139f691cafadbc17873943ba4c465f3Evan Cheng /// MemIndexedMode enum - This enum defines the load / store indexed 607144d8f09e139f691cafadbc17873943ba4c465f3Evan Cheng /// addressing modes. 60824446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// 60924446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// UNINDEXED "Normal" load / store. The effective address is already 61024446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// computed and is available in the base pointer. The offset 61181c384578828dde08f63a4f030f4860a92391cddEvan Cheng /// operand is always undefined. In addition to producing a 61281c384578828dde08f63a4f030f4860a92391cddEvan Cheng /// chain, an unindexed load produces one value (result of the 61381c384578828dde08f63a4f030f4860a92391cddEvan Cheng /// load); an unindexed store does not produces a value. 61424446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// 61535acd30a2e96a5a4ad9fa837971af2cc583bcd1fEvan Cheng /// PRE_INC Similar to the unindexed mode where the effective address is 6168862ef148100070b7bf28beead3951464250c926Evan Cheng /// PRE_DEC the value of the base pointer add / subtract the offset. 6178862ef148100070b7bf28beead3951464250c926Evan Cheng /// It considers the computation as being folded into the load / 61824446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// store operation (i.e. the load / store does the address 61924446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// computation as well as performing the memory transaction). 62081c384578828dde08f63a4f030f4860a92391cddEvan Cheng /// The base operand is always undefined. In addition to 62181c384578828dde08f63a4f030f4860a92391cddEvan Cheng /// producing a chain, pre-indexed load produces two values 62281c384578828dde08f63a4f030f4860a92391cddEvan Cheng /// (result of the load and the result of the address 62381c384578828dde08f63a4f030f4860a92391cddEvan Cheng /// computation); a pre-indexed store produces one value (result 62481c384578828dde08f63a4f030f4860a92391cddEvan Cheng /// of the address computation). 62524446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// 62635acd30a2e96a5a4ad9fa837971af2cc583bcd1fEvan Cheng /// POST_INC The effective address is the value of the base pointer. The 6278862ef148100070b7bf28beead3951464250c926Evan Cheng /// POST_DEC value of the offset operand is then added to / subtracted 6288862ef148100070b7bf28beead3951464250c926Evan Cheng /// from the base after memory transaction. In addition to 6298862ef148100070b7bf28beead3951464250c926Evan Cheng /// producing a chain, post-indexed load produces two values 6308862ef148100070b7bf28beead3951464250c926Evan Cheng /// (the result of the load and the result of the base +/- offset 6318862ef148100070b7bf28beead3951464250c926Evan Cheng /// computation); a post-indexed store produces one value (the 6328862ef148100070b7bf28beead3951464250c926Evan Cheng /// the result of the base +/- offset computation). 63324446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// 634144d8f09e139f691cafadbc17873943ba4c465f3Evan Cheng enum MemIndexedMode { 63524446e253a17720f6462288255ab5ebd13b8491fEvan Cheng UNINDEXED = 0, 63635acd30a2e96a5a4ad9fa837971af2cc583bcd1fEvan Cheng PRE_INC, 63735acd30a2e96a5a4ad9fa837971af2cc583bcd1fEvan Cheng PRE_DEC, 63835acd30a2e96a5a4ad9fa837971af2cc583bcd1fEvan Cheng POST_INC, 639144d8f09e139f691cafadbc17873943ba4c465f3Evan Cheng POST_DEC, 640144d8f09e139f691cafadbc17873943ba4c465f3Evan Cheng LAST_INDEXED_MODE 64124446e253a17720f6462288255ab5ebd13b8491fEvan Cheng }; 64224446e253a17720f6462288255ab5ebd13b8491fEvan Cheng 64324446e253a17720f6462288255ab5ebd13b8491fEvan Cheng //===--------------------------------------------------------------------===// 644c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// LoadExtType enum - This enum defines the three variants of LOADEXT 645c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// (load with extension). 646c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// 64724446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// SEXTLOAD loads the integer operand and sign extends it to a larger 64824446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// integer result type. 64924446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// ZEXTLOAD loads the integer operand and zero extends it to a larger 65024446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// integer result type. 65124446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// EXTLOAD is used for three things: floating point extending loads, 65224446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// integer extending loads [the top bits are undefined], and vector 65324446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// extending loads [load into low elt]. 65424446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// 655c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng enum LoadExtType { 65624446e253a17720f6462288255ab5ebd13b8491fEvan Cheng NON_EXTLOAD = 0, 657c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng EXTLOAD, 658c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng SEXTLOAD, 659c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng ZEXTLOAD, 660c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng LAST_LOADX_TYPE 661c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng }; 662c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng 663c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng //===--------------------------------------------------------------------===// 66463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// ISD::CondCode enum - These are ordered carefully to make the bitfields 66563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// below work out, when considering SETFALSE (something that never exists 66663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// dynamically) as 0. "U" -> Unsigned (for integer operands) or Unordered 66763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// (for floating point), "L" -> Less than, "G" -> Greater than, "E" -> Equal 66863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// to. If the "N" column is 1, the result of the comparison is undefined if 66963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// the input is a NAN. 67063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 67163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// All of these (except for the 'always folded ops') should be handled for 67263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// floating point. For integer, only the SETEQ,SETNE,SETLT,SETLE,SETGT, 67363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// SETGE,SETULT,SETULE,SETUGT, and SETUGE opcodes are used. 67463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 67563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// Note that these are laid out in a specific order to allow bit-twiddling 67663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// to transform conditions. 67763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner enum CondCode { 67863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Opcode N U L G E Intuitive operation 67963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETFALSE, // 0 0 0 0 Always false (always folded) 68063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOEQ, // 0 0 0 1 True if ordered and equal 68163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOGT, // 0 0 1 0 True if ordered and greater than 68263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOGE, // 0 0 1 1 True if ordered and greater than or equal 68363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOLT, // 0 1 0 0 True if ordered and less than 68463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETOLE, // 0 1 0 1 True if ordered and less than or equal 68563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETONE, // 0 1 1 0 True if ordered and operands are unequal 68663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETO, // 0 1 1 1 True if ordered (no nans) 68763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUO, // 1 0 0 0 True if unordered: isnan(X) | isnan(Y) 68863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUEQ, // 1 0 0 1 True if unordered or equal 68963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUGT, // 1 0 1 0 True if unordered or greater than 69063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUGE, // 1 0 1 1 True if unordered, greater than, or equal 69163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETULT, // 1 1 0 0 True if unordered or less than 692ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SETULE, // 1 1 0 1 True if unordered, less than, or equal 69363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETUNE, // 1 1 1 0 True if unordered or not equal 69463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETTRUE, // 1 1 1 1 Always true (always folded) 69563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Don't care operations: undefined if the input is a nan. 69663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETFALSE2, // 1 X 0 0 0 Always false (always folded) 69763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETEQ, // 1 X 0 0 1 True if equal 69863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETGT, // 1 X 0 1 0 True if greater than 69963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETGE, // 1 X 0 1 1 True if greater than or equal 70063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETLT, // 1 X 1 0 0 True if less than 701ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SETLE, // 1 X 1 0 1 True if less than or equal 70263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETNE, // 1 X 1 1 0 True if not equal 70363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SETTRUE2, // 1 X 1 1 1 Always true (always folded) 70463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 705410354fe0c052141dadeca939395743f8dd58e38Chris Lattner SETCC_INVALID // Marker value. 70663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner }; 70763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 70863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isSignedIntSetCC - Return true if this is a setcc instruction that 70963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// performs a signed comparison when used with integer operands. 71063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isSignedIntSetCC(CondCode Code) { 71163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Code == SETGT || Code == SETGE || Code == SETLT || Code == SETLE; 71263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 71363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 71463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isUnsignedIntSetCC - Return true if this is a setcc instruction that 71563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// performs an unsigned comparison when used with integer operands. 71663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isUnsignedIntSetCC(CondCode Code) { 71763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Code == SETUGT || Code == SETUGE || Code == SETULT || Code == SETULE; 71863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 71963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 72063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isTrueWhenEqual - Return true if the specified condition returns true if 72163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// the two operands to the condition are equal. Note that if one of the two 72263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operands is a NaN, this value is meaningless. 72363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline bool isTrueWhenEqual(CondCode Cond) { 72463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return ((int)Cond & 1) != 0; 72563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 72663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 72763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getUnorderedFlavor - This function returns 0 if the condition is always 72863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// false if an operand is a NaN, 1 if the condition is always true if the 72963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operand is a NaN, and 2 if the condition is undefined if the operand is a 73063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// NaN. 73163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getUnorderedFlavor(CondCode Cond) { 73263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return ((int)Cond >> 3) & 3; 73363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 73463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 73563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCInverse - Return the operation corresponding to !(X op Y), where 73663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 'op' is a valid SetCC operation. 73763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCInverse(CondCode Operation, bool isInteger); 73863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 73963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCSwappedOperands - Return the operation corresponding to (Y op X) 74063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// when given the operation for (X op Y). 74163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCSwappedOperands(CondCode Operation); 74263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 74363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCOrOperation - Return the result of a logical OR between different 74463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// comparisons of identical values: ((X op1 Y) | (X op2 Y)). This 74563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// function returns SETCC_INVALID if it is not possible to represent the 74663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// resultant comparison. 74763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCOrOperation(CondCode Op1, CondCode Op2, bool isInteger); 74863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 74963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getSetCCAndOperation - Return the result of a logical AND between 75063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// different comparisons of identical values: ((X op1 Y) & (X op2 Y)). This 75163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// function returns SETCC_INVALID if it is not possible to represent the 75263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// resultant comparison. 75363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner CondCode getSetCCAndOperation(CondCode Op1, CondCode Op2, bool isInteger); 75463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} // end llvm::ISD namespace 75563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 75663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 75763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner//===----------------------------------------------------------------------===// 75863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDOperand - Unlike LLVM values, Selection DAG nodes may return multiple 75963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// values as the result of a computation. Many nodes return multiple values, 76063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// from loads (which define a token and a return value) to ADDC (which returns 76163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// a result and a carry value), to calls (which may return an arbitrary number 76263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// of values). 76363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 76463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// As such, each use of a SelectionDAG computation must indicate the node that 76563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// computes it as well as which return value to use from that node. This pair 76663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// of information is represented with the SDOperand value type. 76763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 768f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattnerclass SDOperand { 769f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattnerpublic: 77063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDNode *Val; // The node defining the value we are using. 77163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned ResNo; // Which return value of the node we are using. 77263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 773ace44dbbabe9ee0498834957632df2af0dbf9c59Reid Spencer SDOperand() : Val(0), ResNo(0) {} 77463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDOperand(SDNode *val, unsigned resno) : Val(val), ResNo(resno) {} 77563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 77663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator==(const SDOperand &O) const { 77763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val == O.Val && ResNo == O.ResNo; 77863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 77963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator!=(const SDOperand &O) const { 78063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return !operator==(O); 78163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 78263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool operator<(const SDOperand &O) const { 78363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val < O.Val || (Val == O.Val && ResNo < O.ResNo); 78463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 78563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 78663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner SDOperand getValue(unsigned R) const { 78763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return SDOperand(Val, R); 78863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 78963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 790bfa284f69752c54f81bffc2b0d15d5c1e618a659Evan Cheng // isOperand - Return true if this node is an operand of N. 791bfa284f69752c54f81bffc2b0d15d5c1e618a659Evan Cheng bool isOperand(SDNode *N) const; 792bfa284f69752c54f81bffc2b0d15d5c1e618a659Evan Cheng 79363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getValueType - Return the ValueType of the referenced return value. 79463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 79563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline MVT::ValueType getValueType() const; 796ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 79763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Forwarding methods - These forward to the corresponding methods in SDNode. 79863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getOpcode() const; 79963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline unsigned getNumOperands() const; 80063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner inline const SDOperand &getOperand(unsigned i) const; 801c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng inline uint64_t getConstantOperandVal(unsigned i) const; 8020f66a9172175aa7c3055333358170581c999219bNate Begeman inline bool isTargetOpcode() const; 8030f66a9172175aa7c3055333358170581c999219bNate Begeman inline unsigned getTargetOpcode() const; 804a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner 805572dee71af1313e6742e1dfd5274fff326b9ef1cChris Lattner 806572dee71af1313e6742e1dfd5274fff326b9ef1cChris Lattner /// reachesChainWithoutSideEffects - Return true if this operand (which must 807572dee71af1313e6742e1dfd5274fff326b9ef1cChris Lattner /// be a chain) reaches the specified operand without crossing any 808572dee71af1313e6742e1dfd5274fff326b9ef1cChris Lattner /// side-effecting instructions. In practice, this looks through token 809572dee71af1313e6742e1dfd5274fff326b9ef1cChris Lattner /// factors and non-volatile loads. In order to remain efficient, this only 810572dee71af1313e6742e1dfd5274fff326b9ef1cChris Lattner /// looks a couple of nodes in, it does not do an exhaustive search. 811572dee71af1313e6742e1dfd5274fff326b9ef1cChris Lattner bool reachesChainWithoutSideEffects(SDOperand Dest, unsigned Depth = 2) const; 812572dee71af1313e6742e1dfd5274fff326b9ef1cChris Lattner 813a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner /// hasOneUse - Return true if there is exactly one operation using this 814a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner /// result value of the defining operator. 815a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner inline bool hasOneUse() const; 816e1b50639a860934685dff840e1826b16dbe6a344Dan Gohman 817e1b50639a860934685dff840e1826b16dbe6a344Dan Gohman /// use_empty - Return true if there are no operations using this 818e1b50639a860934685dff840e1826b16dbe6a344Dan Gohman /// result value of the defining operator. 819e1b50639a860934685dff840e1826b16dbe6a344Dan Gohman inline bool use_empty() const; 82063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 82163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 82263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 82376c1b97e4020faace8c95a127f1eab66c278fb58Chris Lattnertemplate<> struct DenseMapInfo<SDOperand> { 824c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng static inline SDOperand getEmptyKey() { return SDOperand((SDNode*)-1, -1U); } 825c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng static inline SDOperand getTombstoneKey() { return SDOperand((SDNode*)-1, 0);} 826c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng static unsigned getHashValue(const SDOperand &Val) { 827c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng return (unsigned)((uintptr_t)Val.Val >> 4) ^ 828c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng (unsigned)((uintptr_t)Val.Val >> 9) + Val.ResNo; 829c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng } 83076c1b97e4020faace8c95a127f1eab66c278fb58Chris Lattner static bool isEqual(const SDOperand &LHS, const SDOperand &RHS) { 83176c1b97e4020faace8c95a127f1eab66c278fb58Chris Lattner return LHS == RHS; 83276c1b97e4020faace8c95a127f1eab66c278fb58Chris Lattner } 833c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng static bool isPod() { return true; } 834c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng}; 835c63d391c9a886d58c6a53a7f565fbd544b076d9fEvan Cheng 83663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// simplify_type specializations - Allow casting operators to work directly on 83763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDOperands as if they were SDNode*'s. 83863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnertemplate<> struct simplify_type<SDOperand> { 83963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner typedef SDNode* SimpleType; 84063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static SimpleType getSimplifiedValue(const SDOperand &Val) { 84163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return static_cast<SimpleType>(Val.Val); 84263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 84363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 84463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnertemplate<> struct simplify_type<const SDOperand> { 84563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner typedef SDNode* SimpleType; 84663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static SimpleType getSimplifiedValue(const SDOperand &Val) { 84763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return static_cast<SimpleType>(Val.Val); 84863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 84963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 85063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 85163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 85263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// SDNode - Represents one node in the SelectionDAG. 85363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner/// 854583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskeyclass SDNode : public FoldingSetNode { 8550442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// NodeType - The operation that this node performs. 8560442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// 8570442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner unsigned short NodeType; 85863e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner 85963e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner /// OperandsNeedDelete - This is true if OperandList was new[]'d. If true, 86063e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner /// then they will be delete[]'d when the node is destroyed. 86163e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner bool OperandsNeedDelete : 1; 8620442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 863b9ee9e60a905b90fa3e84c5c6091af6e5a0382d2Evan Cheng /// NodeId - Unique id per SDNode in the DAG. 864b9ee9e60a905b90fa3e84c5c6091af6e5a0382d2Evan Cheng int NodeId; 8650442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 866f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// OperandList - The values that are used by this operation. 8670442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner /// 868f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner SDOperand *OperandList; 869f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 870f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// ValueList - The types of the values this node defines. SDNode's may 871f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// define multiple values simultaneously. 8722fa6d3b1fcadbde90eaee0e8e89aebd81630b662Chris Lattner const MVT::ValueType *ValueList; 87363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 874f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner /// NumOperands/NumValues - The number of entries in the Operand/Value list. 875f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned short NumOperands, NumValues; 876b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 877b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner /// Prev/Next pointers - These pointers form the linked list of of the 878b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner /// AllNodes list in the current DAG. 879b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner SDNode *Prev, *Next; 880b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner friend struct ilist_traits<SDNode>; 88163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 88263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// Uses - These are all of the SDNode's that use a value produced by this 88363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// node. 8845892d47a625638a90afeb31dd4f6f80a2f9bacdeChris Lattner SmallVector<SDNode*,3> Uses; 885917d2c9dc2cc8879ed97533e7f75f3f92fa26b61Chris Lattner 886917d2c9dc2cc8879ed97533e7f75f3f92fa26b61Chris Lattner // Out-of-line virtual method to give class a home. 887917d2c9dc2cc8879ed97533e7f75f3f92fa26b61Chris Lattner virtual void ANCHOR(); 88863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 889b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner virtual ~SDNode() { 890b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner assert(NumOperands == 0 && "Operand list not cleared before deletion"); 8913258ed6a361bf405a89f7af0b1885841d9909516Chris Lattner NodeType = ISD::DELETED_NODE; 892b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner } 893b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 89463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner //===--------------------------------------------------------------------===// 89563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // Accessors 89663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner // 89763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned getOpcode() const { return NodeType; } 8980f66a9172175aa7c3055333358170581c999219bNate Begeman bool isTargetOpcode() const { return NodeType >= ISD::BUILTIN_OP_END; } 8990f66a9172175aa7c3055333358170581c999219bNate Begeman unsigned getTargetOpcode() const { 9000f66a9172175aa7c3055333358170581c999219bNate Begeman assert(isTargetOpcode() && "Not a target opcode!"); 9010f66a9172175aa7c3055333358170581c999219bNate Begeman return NodeType - ISD::BUILTIN_OP_END; 9020f66a9172175aa7c3055333358170581c999219bNate Begeman } 90363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 90463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner size_t use_size() const { return Uses.size(); } 90563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool use_empty() const { return Uses.empty(); } 90663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool hasOneUse() const { return Uses.size() == 1; } 90763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 908b9ee9e60a905b90fa3e84c5c6091af6e5a0382d2Evan Cheng /// getNodeId - Return the unique node id. 909b9ee9e60a905b90fa3e84c5c6091af6e5a0382d2Evan Cheng /// 910b9ee9e60a905b90fa3e84c5c6091af6e5a0382d2Evan Cheng int getNodeId() const { return NodeId; } 9110442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner 9122e07d33f04c513f3c2da3d7b1acfc098f02c7a6eEvan Cheng /// setNodeId - Set unique node id. 9132e07d33f04c513f3c2da3d7b1acfc098f02c7a6eEvan Cheng void setNodeId(int Id) { NodeId = Id; } 9142e07d33f04c513f3c2da3d7b1acfc098f02c7a6eEvan Cheng 9155892d47a625638a90afeb31dd4f6f80a2f9bacdeChris Lattner typedef SmallVector<SDNode*,3>::const_iterator use_iterator; 9167ece380440238ad0630a225b85a09a2dbed1165aChris Lattner use_iterator use_begin() const { return Uses.begin(); } 9177ece380440238ad0630a225b85a09a2dbed1165aChris Lattner use_iterator use_end() const { return Uses.end(); } 9187ece380440238ad0630a225b85a09a2dbed1165aChris Lattner 919b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// hasNUsesOfValue - Return true if there are exactly NUSES uses of the 920b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// indicated value. This method ignores uses of other values defined by this 921b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner /// operation. 9224ee621125876cc954cba5280dd9395552755a871Evan Cheng bool hasNUsesOfValue(unsigned NUses, unsigned Value) const; 9234ee621125876cc954cba5280dd9395552755a871Evan Cheng 92433d5595d667ba4a880bd7fe785724e8197bef70cEvan Cheng /// hasAnyUseOfValue - Return true if there are any use of the indicated 92533d5595d667ba4a880bd7fe785724e8197bef70cEvan Cheng /// value. This method ignores uses of other values defined by this operation. 92633d5595d667ba4a880bd7fe785724e8197bef70cEvan Cheng bool hasAnyUseOfValue(unsigned Value) const; 92733d5595d667ba4a880bd7fe785724e8197bef70cEvan Cheng 928e6e97e66a366cc7d2d103ac58db56e4bfd700b10Evan Cheng /// isOnlyUse - Return true if this node is the only use of N. 929e6e97e66a366cc7d2d103ac58db56e4bfd700b10Evan Cheng /// 9304ee621125876cc954cba5280dd9395552755a871Evan Cheng bool isOnlyUse(SDNode *N) const; 931b18a2f816cc9d1351ca8e380a6db5c5ef981943eChris Lattner 932e6e97e66a366cc7d2d103ac58db56e4bfd700b10Evan Cheng /// isOperand - Return true if this node is an operand of N. 933e6e97e66a366cc7d2d103ac58db56e4bfd700b10Evan Cheng /// 93480d8eaae05d9bcb25abf6c6f0385ec2554355f26Evan Cheng bool isOperand(SDNode *N) const; 93580d8eaae05d9bcb25abf6c6f0385ec2554355f26Evan Cheng 936e6e97e66a366cc7d2d103ac58db56e4bfd700b10Evan Cheng /// isPredecessor - Return true if this node is a predecessor of N. This node 937e6e97e66a366cc7d2d103ac58db56e4bfd700b10Evan Cheng /// is either an operand of N or it can be reached by recursively traversing 938e6e97e66a366cc7d2d103ac58db56e4bfd700b10Evan Cheng /// up the operands. 939e6e97e66a366cc7d2d103ac58db56e4bfd700b10Evan Cheng /// NOTE: this is an expensive method. Use it carefully. 9407ceebb437ebb18efefe72d8d2d0e9c762c3aa6b3Evan Cheng bool isPredecessor(SDNode *N) const; 9417ceebb437ebb18efefe72d8d2d0e9c762c3aa6b3Evan Cheng 94263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getNumOperands - Return the number of values used by this operation. 94363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 944f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned getNumOperands() const { return NumOperands; } 94563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 946c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// getConstantOperandVal - Helper method returns the integer value of a 947c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// ConstantSDNode operand. 948c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng uint64_t getConstantOperandVal(unsigned Num) const; 949c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng 95063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const SDOperand &getOperand(unsigned Num) const { 951f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(Num < NumOperands && "Invalid child # of SDNode!"); 952f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner return OperandList[Num]; 95363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 954c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng 955f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner typedef const SDOperand* op_iterator; 956f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner op_iterator op_begin() const { return OperandList; } 957f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner op_iterator op_end() const { return OperandList+NumOperands; } 95850f5a51f41d36c519de68ff11fbf7c7c76f45416Chris Lattner 95963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 9600b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner SDVTList getVTList() const { 9610b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner SDVTList X = { ValueList, NumValues }; 9620b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner return X; 9630b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner }; 9640b3e525a3a6b55b66dc5676675712b26e4c1ed9fChris Lattner 96563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getNumValues - Return the number of values defined/returned by this 96663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// operator. 96763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 968f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner unsigned getNumValues() const { return NumValues; } 96963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 97063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// getValueType - Return the type of a specified result. 97163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// 97263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MVT::ValueType getValueType(unsigned ResNo) const { 973f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner assert(ResNo < NumValues && "Illegal result number!"); 974f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner return ValueList[ResNo]; 97563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 9769eb59ec548b861d6ede05b4e6dc22aabf645e665Jeff Cohen 977f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner typedef const MVT::ValueType* value_iterator; 978f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner value_iterator value_begin() const { return ValueList; } 979f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner value_iterator value_end() const { return ValueList+NumValues; } 98063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 9816e6e3ceb080e5a8bdfd3258d883a06ebbd8a1965Chris Lattner /// getOperationName - Return the opcode of this operation for printing. 9826e6e3ceb080e5a8bdfd3258d883a06ebbd8a1965Chris Lattner /// 983ded5ed873fa7cd85f0b9d7c677b81dddf9a61eaaReid Spencer std::string getOperationName(const SelectionDAG *G = 0) const; 984144d8f09e139f691cafadbc17873943ba4c465f3Evan Cheng static const char* getIndexedModeName(ISD::MemIndexedMode AM); 98563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner void dump() const; 986efe58694050e48b61584b8454434dcd1ad886a71Chris Lattner void dump(const SelectionDAG *G) const; 98763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 98863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *) { return true; } 98963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 990583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey /// Profile - Gather unique data for the node. 991583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey /// 992583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey void Profile(FoldingSetNodeID &ID); 993583bd47f777fe3eb8305872fa0eadab31e833dffJim Laskey 99463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 99563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 996109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner 997109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner /// getValueTypeList - Return a pointer to the specified value type. 998109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner /// 999109654fae9c5b8b96bd3a829824cdbceb27ced06Chris Lattner static MVT::ValueType *getValueTypeList(MVT::ValueType VT); 100063e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner static SDVTList getSDVTList(MVT::ValueType VT) { 100163e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner SDVTList Ret = { getValueTypeList(VT), 1 }; 100263e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner return Ret; 10032d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth } 100463e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner 1005ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner SDNode(unsigned Opc, SDVTList VTs, const SDOperand *Ops, unsigned NumOps) 1006b9ee9e60a905b90fa3e84c5c6091af6e5a0382d2Evan Cheng : NodeType(Opc), NodeId(-1) { 100763e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner OperandsNeedDelete = true; 1008f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner NumOperands = NumOps; 1009bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner OperandList = NumOps ? new SDOperand[NumOperands] : 0; 1010f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner 1011bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner for (unsigned i = 0; i != NumOps; ++i) { 1012f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner OperandList[i] = Ops[i]; 1013bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner Ops[i].Val->Uses.push_back(this); 10140442fbfadbeea21eee9df88dc466d95e040dde6bChris Lattner } 1015bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner 1016ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner ValueList = VTs.VTs; 1017ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner NumValues = VTs.NumVTs; 1018b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner Prev = 0; Next = 0; 1019f71e843f651ad94e19f85daa947fe24312b40d11Chris Lattner } 1020bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner SDNode(unsigned Opc, SDVTList VTs) : NodeType(Opc), NodeId(-1) { 1021bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner OperandsNeedDelete = false; // Operands set with InitOperands. 1022bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner NumOperands = 0; 1023bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner OperandList = 0; 1024bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner 1025bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner ValueList = VTs.VTs; 1026bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner NumValues = VTs.NumVTs; 1027bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner Prev = 0; Next = 0; 1028bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner } 1029bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner 1030bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner /// InitOperands - Initialize the operands list of this node with the 1031bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner /// specified values, which are part of the node (thus they don't need to be 1032bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner /// copied in or allocated). 1033bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner void InitOperands(SDOperand *Ops, unsigned NumOps) { 1034bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner assert(OperandList == 0 && "Operands already set!"); 1035bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner NumOperands = NumOps; 1036bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner OperandList = Ops; 1037bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner 1038bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner for (unsigned i = 0; i != NumOps; ++i) 1039bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner Ops[i].Val->Uses.push_back(this); 1040bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner } 1041bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner 1042d429bcd4ac734540ebbc15a0ee37d154ae1daf73Chris Lattner /// MorphNodeTo - This frees the operands of the current node, resets the 1043d429bcd4ac734540ebbc15a0ee37d154ae1daf73Chris Lattner /// opcode, types, and operands to the specified value. This should only be 1044d429bcd4ac734540ebbc15a0ee37d154ae1daf73Chris Lattner /// used by the SelectionDAG class. 1045d429bcd4ac734540ebbc15a0ee37d154ae1daf73Chris Lattner void MorphNodeTo(unsigned Opc, SDVTList L, 1046d429bcd4ac734540ebbc15a0ee37d154ae1daf73Chris Lattner const SDOperand *Ops, unsigned NumOps); 10471b95095857b78e12138c22e76c7936611c51355bChris Lattner 10488c3484c5181834e6b7060a6064ac769878101f23Chris Lattner void addUser(SDNode *User) { 10498c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses.push_back(User); 10501b95095857b78e12138c22e76c7936611c51355bChris Lattner } 1051d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner void removeUser(SDNode *User) { 1052d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner // Remove this user from the operand's use list. 1053d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner for (unsigned i = Uses.size(); ; --i) { 1054d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner assert(i != 0 && "Didn't find user!"); 1055d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner if (Uses[i-1] == User) { 10568c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses[i-1] = Uses.back(); 10578c3484c5181834e6b7060a6064ac769878101f23Chris Lattner Uses.pop_back(); 10588c3484c5181834e6b7060a6064ac769878101f23Chris Lattner return; 1059d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 1060d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 1061d1fc96499b7619356c7542200d32da898b79f7c1Chris Lattner } 106263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 106363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 106463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 106563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner// Define inline functions from the SDOperand class. 106663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 106763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline unsigned SDOperand::getOpcode() const { 106863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getOpcode(); 106963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 107063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline MVT::ValueType SDOperand::getValueType() const { 107163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getValueType(ResNo); 107263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 107363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline unsigned SDOperand::getNumOperands() const { 107463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getNumOperands(); 107563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 107663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerinline const SDOperand &SDOperand::getOperand(unsigned i) const { 107763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return Val->getOperand(i); 107863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} 1079c548428c5d7328592f4db6f6cd815af18b3152a3Evan Chenginline uint64_t SDOperand::getConstantOperandVal(unsigned i) const { 1080c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng return Val->getConstantOperandVal(i); 1081c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng} 10820f66a9172175aa7c3055333358170581c999219bNate Begemaninline bool SDOperand::isTargetOpcode() const { 10830f66a9172175aa7c3055333358170581c999219bNate Begeman return Val->isTargetOpcode(); 10840f66a9172175aa7c3055333358170581c999219bNate Begeman} 10850f66a9172175aa7c3055333358170581c999219bNate Begemaninline unsigned SDOperand::getTargetOpcode() const { 10860f66a9172175aa7c3055333358170581c999219bNate Begeman return Val->getTargetOpcode(); 10870f66a9172175aa7c3055333358170581c999219bNate Begeman} 1088a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattnerinline bool SDOperand::hasOneUse() const { 1089a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner return Val->hasNUsesOfValue(1, ResNo); 1090a44f4aeca77c6c1627568fe68e92af9c7e33dc7eChris Lattner} 1091e1b50639a860934685dff840e1826b16dbe6a344Dan Gohmaninline bool SDOperand::use_empty() const { 1092e1b50639a860934685dff840e1826b16dbe6a344Dan Gohman return !Val->hasAnyUseOfValue(ResNo); 1093e1b50639a860934685dff840e1826b16dbe6a344Dan Gohman} 109463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 10953f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner/// UnarySDNode - This class is used for single-operand SDNodes. This is solely 10963f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner/// to allow co-allocation of node operands with the node itself. 10973f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattnerclass UnarySDNode : public SDNode { 10983f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 10993f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner SDOperand Op; 11003f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattnerpublic: 11013f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner UnarySDNode(unsigned Opc, SDVTList VTs, SDOperand X) 11023f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner : SDNode(Opc, VTs), Op(X) { 11033f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner InitOperands(&Op, 1); 11043f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner } 11053f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner}; 11063f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner 11073f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner/// BinarySDNode - This class is used for two-operand SDNodes. This is solely 11083f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner/// to allow co-allocation of node operands with the node itself. 11093f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattnerclass BinarySDNode : public SDNode { 11103f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 11113f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner SDOperand Ops[2]; 11123f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattnerpublic: 11133f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner BinarySDNode(unsigned Opc, SDVTList VTs, SDOperand X, SDOperand Y) 11143f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner : SDNode(Opc, VTs) { 11153f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner Ops[0] = X; 11163f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner Ops[1] = Y; 11173f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner InitOperands(Ops, 2); 11183f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner } 11193f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner}; 11203f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner 11213f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner/// TernarySDNode - This class is used for three-operand SDNodes. This is solely 11223f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner/// to allow co-allocation of node operands with the node itself. 11233f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattnerclass TernarySDNode : public SDNode { 11243f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 11253f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner SDOperand Ops[3]; 11263f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattnerpublic: 11273f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner TernarySDNode(unsigned Opc, SDVTList VTs, SDOperand X, SDOperand Y, 11283f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner SDOperand Z) 11293f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner : SDNode(Opc, VTs) { 11303f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner Ops[0] = X; 11313f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner Ops[1] = Y; 11323f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner Ops[2] = Z; 11333f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner InitOperands(Ops, 3); 11343f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner } 11353f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner}; 11363f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner 11373f97eb449b08069e3370d4ba7566c60bdbf0babdChris Lattner 1138d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// HandleSDNode - This class is used to form a handle around another node that 1139d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// is persistant and is updated across invocations of replaceAllUsesWith on its 1140d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// operand. This node should be directly created by end-users and not added to 1141d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner/// the AllNodes list. 1142d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattnerclass HandleSDNode : public SDNode { 1143c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 1144bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner SDOperand Op; 1145d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattnerpublic: 1146423c2260f95883f7c84ac962e58ac66c3a11efacDan Gohman explicit HandleSDNode(SDOperand X) 1147bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(ISD::HANDLENODE, getSDVTList(MVT::Other)), Op(X) { 1148bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner InitOperands(&Op, 1); 1149bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner } 115048b85926524f9d29ae600123c90194cd73fd629eChris Lattner ~HandleSDNode(); 1151bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner SDOperand getValue() const { return Op; } 1152d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner}; 1153d623e953fc5f46b013994dfa4651cff4d17af159Chris Lattner 115447725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerclass StringSDNode : public SDNode { 115547725d059b259f8a0c145478300c9e9caa006b59Chris Lattner std::string Value; 1156c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 115747725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerprotected: 115847725d059b259f8a0c145478300c9e9caa006b59Chris Lattner friend class SelectionDAG; 1159423c2260f95883f7c84ac962e58ac66c3a11efacDan Gohman explicit StringSDNode(const std::string &val) 1160bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(ISD::STRING, getSDVTList(MVT::Other)), Value(val) { 116147725d059b259f8a0c145478300c9e9caa006b59Chris Lattner } 116247725d059b259f8a0c145478300c9e9caa006b59Chris Lattnerpublic: 116347725d059b259f8a0c145478300c9e9caa006b59Chris Lattner const std::string &getValue() const { return Value; } 116447725d059b259f8a0c145478300c9e9caa006b59Chris Lattner static bool classof(const StringSDNode *) { return true; } 116547725d059b259f8a0c145478300c9e9caa006b59Chris Lattner static bool classof(const SDNode *N) { 116647725d059b259f8a0c145478300c9e9caa006b59Chris Lattner return N->getOpcode() == ISD::STRING; 116747725d059b259f8a0c145478300c9e9caa006b59Chris Lattner } 116847725d059b259f8a0c145478300c9e9caa006b59Chris Lattner}; 116963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 117063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantSDNode : public SDNode { 117163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner uint64_t Value; 1172c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 117363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 117463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1175056f9f61d071c6c583951678f2bf543a1316efccChris Lattner ConstantSDNode(bool isTarget, uint64_t val, MVT::ValueType VT) 1176bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(isTarget ? ISD::TargetConstant : ISD::Constant, getSDVTList(VT)), 1177bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner Value(val) { 117863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 117963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 118063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 118163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner uint64_t getValue() const { return Value; } 118263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 118363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int64_t getSignExtended() const { 118463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned Bits = MVT::getSizeInBits(getValueType(0)); 1185f26bc8ef4827cf0023a7052b62b920b41813d473Chris Lattner return ((int64_t)Value << (64-Bits)) >> (64-Bits); 118663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 118763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 118863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool isNullValue() const { return Value == 0; } 118963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner bool isAllOnesValue() const { 1190885a87ef8512a184a58a0ebe39705ccb221749efChris Lattner return Value == MVT::getIntVTBitMask(getValueType(0)); 119163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 119263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 119363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantSDNode *) { return true; } 119463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1195056f9f61d071c6c583951678f2bf543a1316efccChris Lattner return N->getOpcode() == ISD::Constant || 1196056f9f61d071c6c583951678f2bf543a1316efccChris Lattner N->getOpcode() == ISD::TargetConstant; 119763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 119863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 119963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 120063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantFPSDNode : public SDNode { 12018bb369b8072c919ef5802f639a52b17620201190Dale Johannesen APFloat Value; 1202c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 1203c4dd3c3b519aa2c2ed26ce03a4b1fbb992efeacaDale Johannesen // Longterm plan: replace all uses of getValue with getValueAPF, remove 1204c4dd3c3b519aa2c2ed26ce03a4b1fbb992efeacaDale Johannesen // getValue, rename getValueAPF to getValue. 120563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 120663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1207e6c1742914149d44360fbf05a653041a672282afDale Johannesen ConstantFPSDNode(bool isTarget, const APFloat& val, MVT::ValueType VT) 120887503a63d5756f1836f66f4c9723ec0ea30ec3caDale Johannesen : SDNode(isTarget ? ISD::TargetConstantFP : ISD::ConstantFP, 120987503a63d5756f1836f66f4c9723ec0ea30ec3caDale Johannesen getSDVTList(VT)), Value(val) { 121063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 121163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 121263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1213e6c1742914149d44360fbf05a653041a672282afDale Johannesen const APFloat& getValueAPF() const { return Value; } 121463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 121563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// isExactlyValue - We don't rely on operator== working on double values, as 121663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// it returns true for things that are clearly not equal, like -0.0 and 0.0. 121763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// As such, this method can be used to do an exact bit-for-bit comparison of 121863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner /// two floating point values. 1219c4dd3c3b519aa2c2ed26ce03a4b1fbb992efeacaDale Johannesen 1220c4dd3c3b519aa2c2ed26ce03a4b1fbb992efeacaDale Johannesen /// We leave the version with the double argument here because it's just so 1221c4dd3c3b519aa2c2ed26ce03a4b1fbb992efeacaDale Johannesen /// convenient to write "2.0" and the like. Without this function we'd 1222c4dd3c3b519aa2c2ed26ce03a4b1fbb992efeacaDale Johannesen /// have to duplicate its logic everywhere it's called. 122387503a63d5756f1836f66f4c9723ec0ea30ec3caDale Johannesen bool isExactlyValue(double V) const { 122484cd0e7fa30af43c47ad9533d84debb144596e48Chris Lattner APFloat Tmp(V); 122584cd0e7fa30af43c47ad9533d84debb144596e48Chris Lattner Tmp.convert(Value.getSemantics(), APFloat::rmNearestTiesToEven); 122684cd0e7fa30af43c47ad9533d84debb144596e48Chris Lattner return isExactlyValue(Tmp); 122787503a63d5756f1836f66f4c9723ec0ea30ec3caDale Johannesen } 1228e6c1742914149d44360fbf05a653041a672282afDale Johannesen bool isExactlyValue(const APFloat& V) const; 122963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1230f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen bool isValueValidForType(MVT::ValueType VT, const APFloat& Val); 1231f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen 123263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantFPSDNode *) { return true; } 123363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1234ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner return N->getOpcode() == ISD::ConstantFP || 1235ac0d7238258defe72b1aad53d7f48201b91df795Chris Lattner N->getOpcode() == ISD::TargetConstantFP; 123663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 123763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 123863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 123963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass GlobalAddressSDNode : public SDNode { 124063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner GlobalValue *TheGlobal; 1241404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int Offset; 1242c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 124363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 124463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 124561ca74bc3a29b2af2be7e4bd612289da8aae85b5Evan Cheng GlobalAddressSDNode(bool isTarget, const GlobalValue *GA, MVT::ValueType VT, 12462c5c111b6c144b05718404c85b9dfcc76b1619e7Lauro Ramos Venancio int o = 0); 124763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 124863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 124963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner GlobalValue *getGlobal() const { return TheGlobal; } 1250404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int getOffset() const { return Offset; } 125163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 125263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const GlobalAddressSDNode *) { return true; } 125363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1254f6b184981e429ff03742d66cf7111debd9e2bc61Chris Lattner return N->getOpcode() == ISD::GlobalAddress || 1255b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio N->getOpcode() == ISD::TargetGlobalAddress || 1256b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio N->getOpcode() == ISD::GlobalTLSAddress || 1257b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio N->getOpcode() == ISD::TargetGlobalTLSAddress; 125863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 125963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 126063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 126163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass FrameIndexSDNode : public SDNode { 126263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int FI; 1263c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 126463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 126563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1266afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner FrameIndexSDNode(int fi, MVT::ValueType VT, bool isTarg) 1267bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(isTarg ? ISD::TargetFrameIndex : ISD::FrameIndex, getSDVTList(VT)), 1268bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner FI(fi) { 126963e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner } 127063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 127163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 127263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner int getIndex() const { return FI; } 127363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 127463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const FrameIndexSDNode *) { return true; } 127563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1276afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner return N->getOpcode() == ISD::FrameIndex || 1277afb2dd43de61f4585e75d1f3ab93a9ac4b3b7592Chris Lattner N->getOpcode() == ISD::TargetFrameIndex; 127863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 127963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 128063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 128137efe6764568a3829fee26aba532283131d1a104Nate Begemanclass JumpTableSDNode : public SDNode { 128237efe6764568a3829fee26aba532283131d1a104Nate Begeman int JTI; 1283c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 128437efe6764568a3829fee26aba532283131d1a104Nate Begemanprotected: 128537efe6764568a3829fee26aba532283131d1a104Nate Begeman friend class SelectionDAG; 128637efe6764568a3829fee26aba532283131d1a104Nate Begeman JumpTableSDNode(int jti, MVT::ValueType VT, bool isTarg) 1287bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(isTarg ? ISD::TargetJumpTable : ISD::JumpTable, getSDVTList(VT)), 1288bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner JTI(jti) { 128963e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner } 129037efe6764568a3829fee26aba532283131d1a104Nate Begemanpublic: 129137efe6764568a3829fee26aba532283131d1a104Nate Begeman 129237efe6764568a3829fee26aba532283131d1a104Nate Begeman int getIndex() const { return JTI; } 129337efe6764568a3829fee26aba532283131d1a104Nate Begeman 129437efe6764568a3829fee26aba532283131d1a104Nate Begeman static bool classof(const JumpTableSDNode *) { return true; } 129537efe6764568a3829fee26aba532283131d1a104Nate Begeman static bool classof(const SDNode *N) { 129637efe6764568a3829fee26aba532283131d1a104Nate Begeman return N->getOpcode() == ISD::JumpTable || 129737efe6764568a3829fee26aba532283131d1a104Nate Begeman N->getOpcode() == ISD::TargetJumpTable; 129837efe6764568a3829fee26aba532283131d1a104Nate Begeman } 129937efe6764568a3829fee26aba532283131d1a104Nate Begeman}; 130037efe6764568a3829fee26aba532283131d1a104Nate Begeman 130163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ConstantPoolSDNode : public SDNode { 1302d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng union { 1303d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Constant *ConstVal; 1304d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng MachineConstantPoolValue *MachineCPVal; 1305d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } Val; 1306baf4500b3ab128c78932e36f96086c0487c8c7d1Evan Cheng int Offset; // It's a MachineConstantPoolValue if top bit is set. 1307b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng unsigned Alignment; 1308c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 130963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 131063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1311404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng ConstantPoolSDNode(bool isTarget, Constant *c, MVT::ValueType VT, 1312404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng int o=0) 1313ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool, 1314bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner getSDVTList(VT)), Offset(o), Alignment(0) { 1315d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng assert((int)Offset >= 0 && "Offset is too large"); 1316d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Val.ConstVal = c; 1317d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 1318404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng ConstantPoolSDNode(bool isTarget, Constant *c, MVT::ValueType VT, int o, 1319404cb4f9fa2df50eac4d84b8a77c84a92188c6d5Evan Cheng unsigned Align) 1320ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool, 1321bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner getSDVTList(VT)), Offset(o), Alignment(Align) { 1322d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng assert((int)Offset >= 0 && "Offset is too large"); 1323d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Val.ConstVal = c; 1324d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 1325d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng ConstantPoolSDNode(bool isTarget, MachineConstantPoolValue *v, 1326d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng MVT::ValueType VT, int o=0) 1327ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool, 1328bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner getSDVTList(VT)), Offset(o), Alignment(0) { 1329d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng assert((int)Offset >= 0 && "Offset is too large"); 1330d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Val.MachineCPVal = v; 1331d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Offset |= 1 << (sizeof(unsigned)*8-1); 1332d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 1333d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng ConstantPoolSDNode(bool isTarget, MachineConstantPoolValue *v, 1334d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng MVT::ValueType VT, int o, unsigned Align) 1335ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner : SDNode(isTarget ? ISD::TargetConstantPool : ISD::ConstantPool, 1336bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner getSDVTList(VT)), Offset(o), Alignment(Align) { 1337d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng assert((int)Offset >= 0 && "Offset is too large"); 1338d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Val.MachineCPVal = v; 1339d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Offset |= 1 << (sizeof(unsigned)*8-1); 1340d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 134163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 134263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1343d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng bool isMachineConstantPoolEntry() const { 1344d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng return (int)Offset < 0; 1345d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 1346d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng 1347d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng Constant *getConstVal() const { 1348d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng assert(!isMachineConstantPoolEntry() && "Wrong constantpool type"); 1349d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng return Val.ConstVal; 1350d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 1351d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng 1352d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng MachineConstantPoolValue *getMachineCPVal() const { 1353d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng assert(isMachineConstantPoolEntry() && "Wrong constantpool type"); 1354d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng return Val.MachineCPVal; 1355d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng } 1356d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng 1357baf4500b3ab128c78932e36f96086c0487c8c7d1Evan Cheng int getOffset() const { 1358baf4500b3ab128c78932e36f96086c0487c8c7d1Evan Cheng return Offset & ~(1 << (sizeof(unsigned)*8-1)); 1359baf4500b3ab128c78932e36f96086c0487c8c7d1Evan Cheng } 1360ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner 1361ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner // Return the alignment of this constant pool object, which is either 0 (for 1362ef3640aded552279f65bd6d18633e15ffb245157Chris Lattner // default alignment) or log2 of the desired value. 1363b8973bd8f50d7321635e1e07b81a880a0828d185Evan Cheng unsigned getAlignment() const { return Alignment; } 136463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1365d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng const Type *getType() const; 1366d6594ae54cfde4db4d30272192645c0a45fb9902Evan Cheng 136763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ConstantPoolSDNode *) { return true; } 136863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1369aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner return N->getOpcode() == ISD::ConstantPool || 1370aaaaf79d4aaa172c2f2ae0e327bbae523a045bf5Chris Lattner N->getOpcode() == ISD::TargetConstantPool; 137163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 137263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 137363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 137463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass BasicBlockSDNode : public SDNode { 137563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MachineBasicBlock *MBB; 1376c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 137763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 137863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1379423c2260f95883f7c84ac962e58ac66c3a11efacDan Gohman explicit BasicBlockSDNode(MachineBasicBlock *mbb) 1380bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(ISD::BasicBlock, getSDVTList(MVT::Other)), MBB(mbb) { 138163e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner } 138263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 138363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 138463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner MachineBasicBlock *getBasicBlock() const { return MBB; } 138563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 138663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const BasicBlockSDNode *) { return true; } 138763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 138863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner return N->getOpcode() == ISD::BasicBlock; 138963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 139063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 139163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 13922d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthclass SrcValueSDNode : public SDNode { 13932d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth const Value *V; 1394334dc1f58d617dcff969a2e107febaae42bbc883Evan Cheng int offset; 1395c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 13962d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthprotected: 13972d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth friend class SelectionDAG; 1398334dc1f58d617dcff969a2e107febaae42bbc883Evan Cheng SrcValueSDNode(const Value* v, int o) 1399334dc1f58d617dcff969a2e107febaae42bbc883Evan Cheng : SDNode(ISD::SRCVALUE, getSDVTList(MVT::Other)), V(v), offset(o) { 1400334dc1f58d617dcff969a2e107febaae42bbc883Evan Cheng } 14012d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 14022d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharthpublic: 14032d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth const Value *getValue() const { return V; } 1404334dc1f58d617dcff969a2e107febaae42bbc883Evan Cheng int getOffset() const { return offset; } 14052d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 14062d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth static bool classof(const SrcValueSDNode *) { return true; } 14072d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth static bool classof(const SDNode *N) { 14082d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth return N->getOpcode() == ISD::SRCVALUE; 14092d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth } 14102d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth}; 14112d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 141263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1413d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattnerclass RegisterSDNode : public SDNode { 141463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned Reg; 1415c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 141663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 141763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1418d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner RegisterSDNode(unsigned reg, MVT::ValueType VT) 1419bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(ISD::Register, getSDVTList(VT)), Reg(reg) { 142063e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner } 142163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 142263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 142363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner unsigned getReg() const { return Reg; } 142463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 1425d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner static bool classof(const RegisterSDNode *) { return true; } 142663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 1427d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner return N->getOpcode() == ISD::Register; 142863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 142963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 143063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 143163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerclass ExternalSymbolSDNode : public SDNode { 143263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const char *Symbol; 1433c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 143463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 143563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 14362a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth ExternalSymbolSDNode(bool isTarget, const char *Sym, MVT::ValueType VT) 1437ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner : SDNode(isTarget ? ISD::TargetExternalSymbol : ISD::ExternalSymbol, 1438bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner getSDVTList(VT)), Symbol(Sym) { 143963e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner } 144063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 144163b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 144263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner const char *getSymbol() const { return Symbol; } 144363b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 144463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const ExternalSymbolSDNode *) { return true; } 144563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 14462a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth return N->getOpcode() == ISD::ExternalSymbol || 14472a2de66db2093a5bc1fd620d1b6ae7992a552b24Andrew Lenharth N->getOpcode() == ISD::TargetExternalSymbol; 144863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 144963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 145063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 14517cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattnerclass CondCodeSDNode : public SDNode { 145263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner ISD::CondCode Condition; 1453c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 145463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerprotected: 145563b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner friend class SelectionDAG; 1456423c2260f95883f7c84ac962e58ac66c3a11efacDan Gohman explicit CondCodeSDNode(ISD::CondCode Cond) 1457bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(ISD::CONDCODE, getSDVTList(MVT::Other)), Condition(Cond) { 145863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 145963b570d49b7bf205d48749aae1467ef96152ea7aChris Lattnerpublic: 146063b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 14617cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::CondCode get() const { return Condition; } 146263b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 14637cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner static bool classof(const CondCodeSDNode *) { return true; } 146463b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner static bool classof(const SDNode *N) { 14657cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner return N->getOpcode() == ISD::CONDCODE; 146663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner } 146763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner}; 146863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 146915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner/// VTSDNode - This class is used to represent MVT::ValueType's, which are used 147015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner/// to parameterize some operations. 147115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerclass VTSDNode : public SDNode { 147215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ValueType; 1473c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 147415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerprotected: 147515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner friend class SelectionDAG; 1476423c2260f95883f7c84ac962e58ac66c3a11efacDan Gohman explicit VTSDNode(MVT::ValueType VT) 1477bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner : SDNode(ISD::VALUETYPE, getSDVTList(MVT::Other)), ValueType(VT) { 147863e3f14df6cf76f1a12de1153e1114f4b20b15a9Chris Lattner } 147915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattnerpublic: 148015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 148115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType getVT() const { return ValueType; } 148215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 148315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner static bool classof(const VTSDNode *) { return true; } 148415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner static bool classof(const SDNode *N) { 148515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner return N->getOpcode() == ISD::VALUETYPE; 148615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner } 148715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner}; 148815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 14899de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel/// LSBaseSDNode - Base class for LoadSDNode and StoreSDNode 14909de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel/// 14919de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michelclass LSBaseSDNode : public SDNode { 14929de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michelprivate: 1493b625f2f8960de32bc973092aaee8ac62863006feDan Gohman // AddrMode - unindexed, pre-indexed, post-indexed. 1494b625f2f8960de32bc973092aaee8ac62863006feDan Gohman ISD::MemIndexedMode AddrMode; 1495b625f2f8960de32bc973092aaee8ac62863006feDan Gohman 1496b625f2f8960de32bc973092aaee8ac62863006feDan Gohman // MemoryVT - VT of in-memory value. 1497b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType MemoryVT; 1498b625f2f8960de32bc973092aaee8ac62863006feDan Gohman 14999de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel //! SrcValue - Memory location for alias analysis. 15009de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel const Value *SrcValue; 15019de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel 15029de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel //! SVOffset - Memory location offset. 15039de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel int SVOffset; 15049de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel 15059de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel //! Alignment - Alignment of memory location in bytes. 15069de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel unsigned Alignment; 15079de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel 15089de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel //! IsVolatile - True if the store is volatile. 15099de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel bool IsVolatile; 15109de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michelprotected: 15119de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel //! Operand array for load and store 15129de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel /*! 15139de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel \note Moving this array to the base class captures more 15149de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel common functionality shared between LoadSDNode and 15159de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel StoreSDNode 15169de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel */ 15179de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel SDOperand Ops[4]; 15189de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michelpublic: 1519b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LSBaseSDNode(ISD::NodeType NodeTy, SDOperand *Operands, unsigned NumOperands, 1520b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SDVTList VTs, ISD::MemIndexedMode AM, MVT::ValueType VT, 1521b625f2f8960de32bc973092aaee8ac62863006feDan Gohman const Value *SV, int SVO, unsigned Align, bool Vol) 15229de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel : SDNode(NodeTy, VTs), 1523b625f2f8960de32bc973092aaee8ac62863006feDan Gohman AddrMode(AM), MemoryVT(VT), 15249de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel SrcValue(SV), SVOffset(SVO), Alignment(Align), IsVolatile(Vol) 1525b625f2f8960de32bc973092aaee8ac62863006feDan Gohman { 1526b625f2f8960de32bc973092aaee8ac62863006feDan Gohman for (unsigned i = 0; i != NumOperands; ++i) 1527b625f2f8960de32bc973092aaee8ac62863006feDan Gohman Ops[i] = Operands[i]; 1528b625f2f8960de32bc973092aaee8ac62863006feDan Gohman InitOperands(Ops, NumOperands); 1529b625f2f8960de32bc973092aaee8ac62863006feDan Gohman assert(Align != 0 && "Loads and stores should have non-zero aligment"); 1530b625f2f8960de32bc973092aaee8ac62863006feDan Gohman assert((getOffset().getOpcode() == ISD::UNDEF || isIndexed()) && 1531b625f2f8960de32bc973092aaee8ac62863006feDan Gohman "Only indexed loads and stores have a non-undef offset operand"); 1532b625f2f8960de32bc973092aaee8ac62863006feDan Gohman } 15339de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel 15349de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel const SDOperand getChain() const { 15359de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel return getOperand(0); 15369de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel } 15379de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel const SDOperand getBasePtr() const { 15389de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel return getOperand(getOpcode() == ISD::LOAD ? 1 : 2); 15399de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel } 15409de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel const SDOperand getOffset() const { 15419de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel return getOperand(getOpcode() == ISD::LOAD ? 2 : 3); 15429de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel } 15439de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel const SDOperand getValue() const { 15449de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel assert(getOpcode() == ISD::STORE); 15459de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel return getOperand(1); 15469de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel } 15479de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel 15489de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel const Value *getSrcValue() const { return SrcValue; } 15499de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel int getSrcValueOffset() const { return SVOffset; } 15509de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel unsigned getAlignment() const { return Alignment; } 1551b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType getMemoryVT() const { return MemoryVT; } 15529de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel bool isVolatile() const { return IsVolatile; } 15539de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel 1554b625f2f8960de32bc973092aaee8ac62863006feDan Gohman ISD::MemIndexedMode getAddressingMode() const { return AddrMode; } 1555b625f2f8960de32bc973092aaee8ac62863006feDan Gohman 1556b625f2f8960de32bc973092aaee8ac62863006feDan Gohman /// isIndexed - Return true if this is a pre/post inc/dec load/store. 1557b625f2f8960de32bc973092aaee8ac62863006feDan Gohman bool isIndexed() const { return AddrMode != ISD::UNINDEXED; } 1558b625f2f8960de32bc973092aaee8ac62863006feDan Gohman 1559b625f2f8960de32bc973092aaee8ac62863006feDan Gohman /// isUnindexed - Return true if this is NOT a pre/post inc/dec load/store. 1560b625f2f8960de32bc973092aaee8ac62863006feDan Gohman bool isUnindexed() const { return AddrMode == ISD::UNINDEXED; } 1561b625f2f8960de32bc973092aaee8ac62863006feDan Gohman 15629de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel static bool classof(const LSBaseSDNode *N) { return true; } 1563b625f2f8960de32bc973092aaee8ac62863006feDan Gohman static bool classof(const SDNode *N) { 1564b625f2f8960de32bc973092aaee8ac62863006feDan Gohman return N->getOpcode() == ISD::LOAD || 1565b625f2f8960de32bc973092aaee8ac62863006feDan Gohman N->getOpcode() == ISD::STORE; 1566b625f2f8960de32bc973092aaee8ac62863006feDan Gohman } 15679de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel}; 15689de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michel 156924446e253a17720f6462288255ab5ebd13b8491fEvan Cheng/// LoadSDNode - This class is used to represent ISD::LOAD nodes. 157024446e253a17720f6462288255ab5ebd13b8491fEvan Cheng/// 15719de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michelclass LoadSDNode : public LSBaseSDNode { 1572c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 1573bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner 157481c384578828dde08f63a4f030f4860a92391cddEvan Cheng // ExtType - non-ext, anyext, sext, zext. 157581c384578828dde08f63a4f030f4860a92391cddEvan Cheng ISD::LoadExtType ExtType; 157681c384578828dde08f63a4f030f4860a92391cddEvan Cheng 157724446e253a17720f6462288255ab5ebd13b8491fEvan Chengprotected: 157824446e253a17720f6462288255ab5ebd13b8491fEvan Cheng friend class SelectionDAG; 1579ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner LoadSDNode(SDOperand *ChainPtrOff, SDVTList VTs, 1580144d8f09e139f691cafadbc17873943ba4c465f3Evan Cheng ISD::MemIndexedMode AM, ISD::LoadExtType ETy, MVT::ValueType LVT, 158195c218a83ecf77590b9dc40c636720772d2b5cd7Christopher Lamb const Value *SV, int O=0, unsigned Align=0, bool Vol=false) 1582b625f2f8960de32bc973092aaee8ac62863006feDan Gohman : LSBaseSDNode(ISD::LOAD, ChainPtrOff, 3, 1583b625f2f8960de32bc973092aaee8ac62863006feDan Gohman VTs, AM, LVT, SV, O, Align, Vol), 1584b625f2f8960de32bc973092aaee8ac62863006feDan Gohman ExtType(ETy) { } 158524446e253a17720f6462288255ab5ebd13b8491fEvan Chengpublic: 158624446e253a17720f6462288255ab5ebd13b8491fEvan Cheng 158724446e253a17720f6462288255ab5ebd13b8491fEvan Cheng ISD::LoadExtType getExtensionType() const { return ExtType; } 158839354cb743c5a1473de7a80b957c61e92cf76852Chris Lattner 158924446e253a17720f6462288255ab5ebd13b8491fEvan Cheng static bool classof(const LoadSDNode *) { return true; } 159024446e253a17720f6462288255ab5ebd13b8491fEvan Cheng static bool classof(const SDNode *N) { 159124446e253a17720f6462288255ab5ebd13b8491fEvan Cheng return N->getOpcode() == ISD::LOAD; 159224446e253a17720f6462288255ab5ebd13b8491fEvan Cheng } 159324446e253a17720f6462288255ab5ebd13b8491fEvan Cheng}; 159424446e253a17720f6462288255ab5ebd13b8491fEvan Cheng 159524446e253a17720f6462288255ab5ebd13b8491fEvan Cheng/// StoreSDNode - This class is used to represent ISD::STORE nodes. 159624446e253a17720f6462288255ab5ebd13b8491fEvan Cheng/// 15979de5d0dd42463f61c4ee2f9db5f3d08153c0dacfScott Michelclass StoreSDNode : public LSBaseSDNode { 1598c76e3c86026b9fa44bfbb0888881b52955078011Chris Lattner virtual void ANCHOR(); // Out-of-line virtual method to give class a home. 1599bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner 16003ec81c0ee73462b7b9acd355b0013827d06ad93cDuncan Sands // IsTruncStore - True if the op does a truncation before store. 160181c384578828dde08f63a4f030f4860a92391cddEvan Cheng bool IsTruncStore; 160224446e253a17720f6462288255ab5ebd13b8491fEvan Chengprotected: 160324446e253a17720f6462288255ab5ebd13b8491fEvan Cheng friend class SelectionDAG; 1604ab4ed595385d0b9421c0d45c809ec6324cf11f11Chris Lattner StoreSDNode(SDOperand *ChainValuePtrOff, SDVTList VTs, 1605144d8f09e139f691cafadbc17873943ba4c465f3Evan Cheng ISD::MemIndexedMode AM, bool isTrunc, MVT::ValueType SVT, 160624446e253a17720f6462288255ab5ebd13b8491fEvan Cheng const Value *SV, int O=0, unsigned Align=0, bool Vol=false) 1607b625f2f8960de32bc973092aaee8ac62863006feDan Gohman : LSBaseSDNode(ISD::STORE, ChainValuePtrOff, 4, 1608b625f2f8960de32bc973092aaee8ac62863006feDan Gohman VTs, AM, SVT, SV, O, Align, Vol), 1609b625f2f8960de32bc973092aaee8ac62863006feDan Gohman IsTruncStore(isTrunc) { } 161024446e253a17720f6462288255ab5ebd13b8491fEvan Chengpublic: 161124446e253a17720f6462288255ab5ebd13b8491fEvan Cheng 161224446e253a17720f6462288255ab5ebd13b8491fEvan Cheng bool isTruncatingStore() const { return IsTruncStore; } 161339354cb743c5a1473de7a80b957c61e92cf76852Chris Lattner 16146d0b3295777f0e9e9cce27f3473c19f78e88f700Evan Cheng static bool classof(const StoreSDNode *) { return true; } 161524446e253a17720f6462288255ab5ebd13b8491fEvan Cheng static bool classof(const SDNode *N) { 161624446e253a17720f6462288255ab5ebd13b8491fEvan Cheng return N->getOpcode() == ISD::STORE; 161724446e253a17720f6462288255ab5ebd13b8491fEvan Cheng } 161824446e253a17720f6462288255ab5ebd13b8491fEvan Cheng}; 161924446e253a17720f6462288255ab5ebd13b8491fEvan Cheng 162015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner 16211080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnerclass SDNodeIterator : public forward_iterator<SDNode, ptrdiff_t> { 16221080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNode *Node; 16231080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner unsigned Operand; 1624ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 16251080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator(SDNode *N, unsigned Op) : Node(N), Operand(Op) {} 16261080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnerpublic: 16271080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner bool operator==(const SDNodeIterator& x) const { 16281080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return Operand == x.Operand; 16291080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 16301080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner bool operator!=(const SDNodeIterator& x) const { return !operator==(x); } 16311080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 16321080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner const SDNodeIterator &operator=(const SDNodeIterator &I) { 16331080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner assert(I.Node == Node && "Cannot assign iterators to two different nodes!"); 16341080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner Operand = I.Operand; 16351080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return *this; 16361080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 1637ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 16381080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner pointer operator*() const { 16391080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return Node->getOperand(Operand).Val; 16401080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 16411080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner pointer operator->() const { return operator*(); } 1642ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman 16431080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator& operator++() { // Preincrement 16441080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner ++Operand; 16451080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return *this; 16461080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 16471080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner SDNodeIterator operator++(int) { // Postincrement 1648ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman SDNodeIterator tmp = *this; ++*this; return tmp; 16491080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 16501080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 16511080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static SDNodeIterator begin(SDNode *N) { return SDNodeIterator(N, 0); } 16521080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static SDNodeIterator end (SDNode *N) { 16531080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator(N, N->getNumOperands()); 16541080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 16551080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 16561080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner unsigned getOperand() const { return Operand; } 16571080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner const SDNode *getNode() const { return Node; } 16581080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 16591080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 16601080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattnertemplate <> struct GraphTraits<SDNode*> { 16611080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SDNode NodeType; 16621080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner typedef SDNodeIterator ChildIteratorType; 16631080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner static inline NodeType *getEntryNode(SDNode *N) { return N; } 1664ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman static inline ChildIteratorType child_begin(NodeType *N) { 16651080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator::begin(N); 16661080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 1667ea61c358720aa6c7a159d51658b34276316aa841Misha Brukman static inline ChildIteratorType child_end(NodeType *N) { 16681080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner return SDNodeIterator::end(N); 16691080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner } 16701080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner}; 16711080b9ee534579c67f7c99364cc6fa11edbcd919Chris Lattner 1672b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnertemplate<> 1673b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattnerstruct ilist_traits<SDNode> { 1674b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *getPrev(const SDNode *N) { return N->Prev; } 1675b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *getNext(const SDNode *N) { return N->Next; } 1676b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1677b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void setPrev(SDNode *N, SDNode *Prev) { N->Prev = Prev; } 1678b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void setNext(SDNode *N, SDNode *Next) { N->Next = Next; } 1679b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1680b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static SDNode *createSentinel() { 1681bc2e26241d507ecd6c79598e5175f90852b716b3Chris Lattner return new SDNode(ISD::EntryToken, SDNode::getSDVTList(MVT::Other)); 1682b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner } 1683b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner static void destroySentinel(SDNode *N) { delete N; } 1684b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner //static SDNode *createNode(const SDNode &V) { return new SDNode(V); } 1685b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1686b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1687b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void addNodeToList(SDNode *NTy) {} 1688b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void removeNodeFromList(SDNode *NTy) {} 1689b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner void transferNodesFromList(iplist<SDNode, ilist_traits> &L2, 1690b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner const ilist_iterator<SDNode> &X, 1691b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner const ilist_iterator<SDNode> &Y) {} 1692b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner}; 1693b80e2be8894db9f843f32ebaffb9b7fd6b57d206Chris Lattner 1694c548428c5d7328592f4db6f6cd815af18b3152a3Evan Chengnamespace ISD { 1695186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng /// isNormalLoad - Returns true if the specified node is a non-extending 1696186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng /// and unindexed load. 1697186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng inline bool isNormalLoad(const SDNode *N) { 1698186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng if (N->getOpcode() != ISD::LOAD) 1699186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng return false; 1700186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng const LoadSDNode *Ld = cast<LoadSDNode>(N); 1701186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng return Ld->getExtensionType() == ISD::NON_EXTLOAD && 1702186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng Ld->getAddressingMode() == ISD::UNINDEXED; 1703186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng } 1704186edc8fa13d0e02d3c17563ad2bd78ac5963a67Evan Cheng 170524446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// isNON_EXTLoad - Returns true if the specified node is a non-extending 170624446e253a17720f6462288255ab5ebd13b8491fEvan Cheng /// load. 170724446e253a17720f6462288255ab5ebd13b8491fEvan Cheng inline bool isNON_EXTLoad(const SDNode *N) { 170824446e253a17720f6462288255ab5ebd13b8491fEvan Cheng return N->getOpcode() == ISD::LOAD && 170924446e253a17720f6462288255ab5ebd13b8491fEvan Cheng cast<LoadSDNode>(N)->getExtensionType() == ISD::NON_EXTLOAD; 171024446e253a17720f6462288255ab5ebd13b8491fEvan Cheng } 171124446e253a17720f6462288255ab5ebd13b8491fEvan Cheng 1712c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// isEXTLoad - Returns true if the specified node is a EXTLOAD. 1713c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// 1714c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng inline bool isEXTLoad(const SDNode *N) { 171524446e253a17720f6462288255ab5ebd13b8491fEvan Cheng return N->getOpcode() == ISD::LOAD && 171624446e253a17720f6462288255ab5ebd13b8491fEvan Cheng cast<LoadSDNode>(N)->getExtensionType() == ISD::EXTLOAD; 1717c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng } 1718c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng 1719c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// isSEXTLoad - Returns true if the specified node is a SEXTLOAD. 1720c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// 1721c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng inline bool isSEXTLoad(const SDNode *N) { 172224446e253a17720f6462288255ab5ebd13b8491fEvan Cheng return N->getOpcode() == ISD::LOAD && 172324446e253a17720f6462288255ab5ebd13b8491fEvan Cheng cast<LoadSDNode>(N)->getExtensionType() == ISD::SEXTLOAD; 1724c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng } 1725c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng 1726c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// isZEXTLoad - Returns true if the specified node is a ZEXTLOAD. 1727c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng /// 1728c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng inline bool isZEXTLoad(const SDNode *N) { 172924446e253a17720f6462288255ab5ebd13b8491fEvan Cheng return N->getOpcode() == ISD::LOAD && 173024446e253a17720f6462288255ab5ebd13b8491fEvan Cheng cast<LoadSDNode>(N)->getExtensionType() == ISD::ZEXTLOAD; 1731c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng } 17328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 173302c50e4891841c28b2a743731dfc60744bb78879Evan Cheng /// isUNINDEXEDLoad - Returns true if the specified node is a unindexed load. 173402c50e4891841c28b2a743731dfc60744bb78879Evan Cheng /// 173502c50e4891841c28b2a743731dfc60744bb78879Evan Cheng inline bool isUNINDEXEDLoad(const SDNode *N) { 173602c50e4891841c28b2a743731dfc60744bb78879Evan Cheng return N->getOpcode() == ISD::LOAD && 173702c50e4891841c28b2a743731dfc60744bb78879Evan Cheng cast<LoadSDNode>(N)->getAddressingMode() == ISD::UNINDEXED; 173802c50e4891841c28b2a743731dfc60744bb78879Evan Cheng } 173902c50e4891841c28b2a743731dfc60744bb78879Evan Cheng 17408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng /// isNON_TRUNCStore - Returns true if the specified node is a non-truncating 17418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng /// store. 17428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng inline bool isNON_TRUNCStore(const SDNode *N) { 17438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng return N->getOpcode() == ISD::STORE && 17448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng !cast<StoreSDNode>(N)->isTruncatingStore(); 17458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 17468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 17478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng /// isTRUNCStore - Returns true if the specified node is a truncating 17488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng /// store. 17498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng inline bool isTRUNCStore(const SDNode *N) { 17508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng return N->getOpcode() == ISD::STORE && 17518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng cast<StoreSDNode>(N)->isTruncatingStore(); 17528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 1753c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng} 1754c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng 1755c548428c5d7328592f4db6f6cd815af18b3152a3Evan Cheng 175663b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner} // end llvm namespace 175763b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner 175863b570d49b7bf205d48749aae1467ef96152ea7aChris Lattner#endif 1759