SparcISelDAGToDAG.cpp revision 3029f920519e0871a5aad5d7c592281093953733
143dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis//===-- SparcISelDAGToDAG.cpp - A dag to dag inst selector for Sparc ------===// 243dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// 343dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// The LLVM Compiler Infrastructure 443dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// 543dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// This file was developed by Chris Lattner and is distributed under 643dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// the University of Illinois Open Source License. See LICENSE.TXT for details. 743dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// 843dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis//===----------------------------------------------------------------------===// 943dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// 1043dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// This file defines an instruction selector for the SPARC target. 1143dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis// 1243dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis//===----------------------------------------------------------------------===// 1343dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis 1443dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include "Sparc.h" 15ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek#include "SparcTargetMachine.h" 16769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#include "llvm/DerivedTypes.h" 17f540c54701e3eeb34cb619a3a4eb18f1ac70ef2dJordan Rose#include "llvm/Function.h" 18769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#include "llvm/CodeGen/MachineFrameInfo.h" 199fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis#include "llvm/CodeGen/MachineFunction.h" 2043dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include "llvm/CodeGen/MachineInstrBuilder.h" 2143dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include "llvm/CodeGen/SelectionDAG.h" 2243dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include "llvm/CodeGen/SelectionDAGISel.h" 2343dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include "llvm/CodeGen/SSARegMap.h" 24d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis#include "llvm/Target/TargetLowering.h" 25d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis#include "llvm/Support/Debug.h" 26d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis#include <iostream> 27d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis#include <set> 2896479da6ad9d921d875e7be29fe1bfa127be8069Jordan Roseusing namespace llvm; 2996479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose 30d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis//===----------------------------------------------------------------------===// 31d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis// TargetLowering Implementation 32d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis//===----------------------------------------------------------------------===// 33d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis 34d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidisnamespace SPISD { 35d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis enum { 36d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis FIRST_NUMBER = ISD::BUILTIN_OP_END+SP::INSTRUCTION_LIST_END, 37d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis CMPICC, // Compare two GPR operands, set icc. 38d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis CMPFCC, // Compare two FP operands, set fcc. 3942e95acef35f4633119be1c1381e88878c966502Jordan Rose BRICC, // Branch to dest on icc condition 40d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis BRFCC, // Branch to dest on fcc condition 41d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis SELECT_ICC, // Select between two values using the current ICC flags. 42deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis SELECT_FCC, // Select between two values using the current FCC flags. 43deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 44deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis Hi, Lo, // Hi/Lo operations, typically on a global address. 45deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 46deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis FTOI, // FP to Int within a FP register. 47deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis ITOF, // Int to FP within a FP register. 48deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 49deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis CALL, // A call instruction. 50deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis RET_FLAG, // Return with a flag operand. 51deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis }; 52769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 53769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 54769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/// IntCondCCodeToICC - Convert a DAG integer condition code to a SPARC ICC 55769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/// condition. 569fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidisstatic SPCC::CondCodes IntCondCCodeToICC(ISD::CondCode CC) { 579fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis switch (CC) { 589fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis default: assert(0 && "Unknown integer condition code!"); 599fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETEQ: return SPCC::ICC_E; 609fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETNE: return SPCC::ICC_NE; 619fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETLT: return SPCC::ICC_L; 629fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETGT: return SPCC::ICC_G; 639fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETLE: return SPCC::ICC_LE; 649fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETGE: return SPCC::ICC_GE; 659fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETULT: return SPCC::ICC_CS; 669fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETULE: return SPCC::ICC_LEU; 679fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETUGT: return SPCC::ICC_GU; 689fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETUGE: return SPCC::ICC_CC; 699fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis } 709fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis} 71769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 729fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis/// FPCondCCodeToFCC - Convert a DAG floatingp oint condition code to a SPARC 739fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis/// FCC condition. 749fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidisstatic SPCC::CondCodes FPCondCCodeToFCC(ISD::CondCode CC) { 759fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis switch (CC) { 769fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis default: assert(0 && "Unknown fp condition code!"); 77769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case ISD::SETEQ: return SPCC::FCC_E; 78769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case ISD::SETNE: return SPCC::FCC_NE; 799fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETLT: return SPCC::FCC_L; 809fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETGT: return SPCC::FCC_G; 819fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETLE: return SPCC::FCC_LE; 829fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETGE: return SPCC::FCC_GE; 839fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETULT: return SPCC::FCC_UL; 849fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case ISD::SETULE: return SPCC::FCC_ULE; 85769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case ISD::SETUGT: return SPCC::FCC_UG; 86769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case ISD::SETUGE: return SPCC::FCC_UGE; 87769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case ISD::SETUO: return SPCC::FCC_U; 88769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case ISD::SETO: return SPCC::FCC_O; 89769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case ISD::SETONE: return SPCC::FCC_LG; 90769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case ISD::SETUEQ: return SPCC::FCC_UE; 91769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 92769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 93769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 94c2e0db82139c70c0eac9d5c165b6bf3250af5bedArgyrios Kyrtzidisnamespace { 95c2e0db82139c70c0eac9d5c165b6bf3250af5bedArgyrios Kyrtzidis class SparcTargetLowering : public TargetLowering { 96cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis int VarArgsFrameOffset; // Frame offset to start of varargs area. 978ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks public: 988ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks SparcTargetLowering(TargetMachine &TM); 998ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks virtual SDOperand LowerOperation(SDOperand Op, SelectionDAG &DAG); 100769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 101e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis /// isMaskedValueZeroForTargetNode - Return true if 'Op & Mask' is known to 102e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis /// be zero. Op is expected to be a target specific node. Used by DAG 103e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis /// combiner. 104769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis virtual bool isMaskedValueZeroForTargetNode(const SDOperand &Op, 105769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis uint64_t Mask) const; 106769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 107769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis virtual std::vector<SDOperand> 108cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis LowerArguments(Function &F, SelectionDAG &DAG); 109cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis virtual std::pair<SDOperand, SDOperand> 110769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis LowerCallTo(SDOperand Chain, const Type *RetTy, bool isVarArg, 111e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis unsigned CC, 112769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis bool isTailCall, SDOperand Callee, ArgListTy &Args, 113769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis SelectionDAG &DAG); 114769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis virtual std::pair<SDOperand, SDOperand> 115769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis LowerFrameReturnAddress(bool isFrameAddr, SDOperand Chain, unsigned Depth, 116cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis SelectionDAG &DAG); 117769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis virtual MachineBasicBlock *InsertAtEndOfBasicBlock(MachineInstr *MI, 118769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis MachineBasicBlock *MBB); 119769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 1208ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks virtual const char *getTargetNodeName(unsigned Opcode) const; 121769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis }; 1228ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks} 1238ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks 1248ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna ZaksSparcTargetLowering::SparcTargetLowering(TargetMachine &TM) 1258ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks : TargetLowering(TM) { 1268ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks 1278ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks // Set up the register classes. 1288ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks addRegisterClass(MVT::i32, SP::IntRegsRegisterClass); 1298ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks addRegisterClass(MVT::f32, SP::FPRegsRegisterClass); 130769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis addRegisterClass(MVT::f64, SP::DFPRegsRegisterClass); 131769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 1329fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis // Custom legalize GlobalAddress nodes into LO/HI parts. 1339fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis setOperationAction(ISD::GlobalAddress, MVT::i32, Custom); 1349fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis setOperationAction(ISD::ConstantPool , MVT::i32, Custom); 135769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 136769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // Sparc doesn't have sext_inreg, replace them with shl/sra 1375f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand); 138769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i8 , Expand); 139769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1 , Expand); 140769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 141769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // Sparc has no REM operation. 14257c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::UREM, MVT::i32, Expand); 143769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SREM, MVT::i32, Expand); 144e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis 145e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis // Custom expand fp<->sint 146e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis setOperationAction(ISD::FP_TO_SINT, MVT::i32, Custom); 147769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom); 148514f2c9dcb9e04b52929c5b141a6fe88bd68b33fTed Kremenek 149514f2c9dcb9e04b52929c5b141a6fe88bd68b33fTed Kremenek // Expand fp<->uint 15057c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand); 151769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::UINT_TO_FP, MVT::i32, Expand); 152769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 1538ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks setOperationAction(ISD::BIT_CONVERT, MVT::f32, Expand); 154769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::BIT_CONVERT, MVT::i32, Expand); 1553f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks 1563f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks // Turn FP extload into load/fextend 1573f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks setOperationAction(ISD::EXTLOAD, MVT::f32, Expand); 1583f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks 15957c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose // Sparc has no select or setcc: expand to SELECT_CC. 160769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SELECT, MVT::i32, Expand); 161769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SELECT, MVT::f32, Expand); 162769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SELECT, MVT::f64, Expand); 163769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SETCC, MVT::i32, Expand); 164769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SETCC, MVT::f32, Expand); 165769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SETCC, MVT::f64, Expand); 166769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 167769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // Sparc doesn't have BRCOND either, it has BR_CC. 168cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis setOperationAction(ISD::BRCOND, MVT::Other, Expand); 169769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::BRCONDTWOWAY, MVT::Other, Expand); 170514f2c9dcb9e04b52929c5b141a6fe88bd68b33fTed Kremenek setOperationAction(ISD::BRTWOWAY_CC, MVT::Other, Expand); 17157c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::BR_CC, MVT::i32, Custom); 172769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::BR_CC, MVT::f32, Custom); 17357c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::BR_CC, MVT::f64, Custom); 174c2e0db82139c70c0eac9d5c165b6bf3250af5bedArgyrios Kyrtzidis 175769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SELECT_CC, MVT::i32, Custom); 176769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SELECT_CC, MVT::f32, Custom); 177769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::SELECT_CC, MVT::f64, Custom); 178769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 179769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // SPARC has no intrinsics for these particular operations. 18057c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::MEMMOVE, MVT::Other, Expand); 181769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::MEMSET, MVT::Other, Expand); 182de507eaf3cb54d3cb234dc14499c10ab3373d15fJordan Rose setOperationAction(ISD::MEMCPY, MVT::Other, Expand); 183769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 184769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::FSIN , MVT::f64, Expand); 185e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis setOperationAction(ISD::FCOS , MVT::f64, Expand); 186e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis setOperationAction(ISD::FSIN , MVT::f32, Expand); 187e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis setOperationAction(ISD::FCOS , MVT::f32, Expand); 188769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::CTPOP, MVT::i32, Expand); 18957c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::CTTZ , MVT::i32, Expand); 19057c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::CTLZ , MVT::i32, Expand); 19157c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::ROTL , MVT::i32, Expand); 19257c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::ROTR , MVT::i32, Expand); 193769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::BSWAP, MVT::i32, Expand); 194769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 1958ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks setOperationAction(ISD::SHL_PARTS, MVT::i32, Expand); 196d563d3fb73879df7147b8a5302c3bf0e1402ba18Jordan Rose setOperationAction(ISD::SRA_PARTS, MVT::i32, Expand); 19757c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::SRL_PARTS, MVT::i32, Expand); 1983f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks 199d563d3fb73879df7147b8a5302c3bf0e1402ba18Jordan Rose // We don't have line number support yet. 200769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::LOCATION, MVT::Other, Expand); 201769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand); 202769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::DEBUG_LABEL, MVT::Other, Expand); 203769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 204769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // RET must be custom lowered, to meet ABI requirements 205769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::RET , MVT::Other, Custom); 206769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 207cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis // VASTART needs to be custom lowered to use the VarArgsFrameIndex. 208de507eaf3cb54d3cb234dc14499c10ab3373d15fJordan Rose setOperationAction(ISD::VASTART , MVT::Other, Custom); 20957c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose // VAARG needs to be lowered to not do unaligned accesses for doubles. 21057c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::VAARG , MVT::Other, Custom); 2113f8212787d9bd620930817177fbba5f32659377fArgyrios Kyrtzidis 2123f8212787d9bd620930817177fbba5f32659377fArgyrios Kyrtzidis // Use the default implementation. 2133f8212787d9bd620930817177fbba5f32659377fArgyrios Kyrtzidis setOperationAction(ISD::VACOPY , MVT::Other, Expand); 21457c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose setOperationAction(ISD::VAEND , MVT::Other, Expand); 215c2e0db82139c70c0eac9d5c165b6bf3250af5bedArgyrios Kyrtzidis setOperationAction(ISD::STACKSAVE , MVT::Other, Expand); 216769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::STACKRESTORE , MVT::Other, Expand); 217769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32 , Expand); 218769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 21996479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose setOperationAction(ISD::ConstantFP, MVT::f64, Expand); 22096479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose setOperationAction(ISD::ConstantFP, MVT::f32, Expand); 22196479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose 22296479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose setStackPointerRegisterToSaveRestore(SP::O6); 22357c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose 22496479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose if (TM.getSubtarget<SparcSubtarget>().isV9()) { 22596479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose setOperationAction(ISD::CTPOP, MVT::i32, Legal); 22696479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose } 22796479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose 22896479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose computeRegisterProperties(); 22996479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose} 23096479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose 23196479da6ad9d921d875e7be29fe1bfa127be8069Jordan Roseconst char *SparcTargetLowering::getTargetNodeName(unsigned Opcode) const { 23257c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose switch (Opcode) { 23357c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose default: return 0; 23457c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose case SPISD::CMPICC: return "SPISD::CMPICC"; 23557c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose case SPISD::CMPFCC: return "SPISD::CMPFCC"; 23696479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose case SPISD::BRICC: return "SPISD::BRICC"; 23796479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose case SPISD::BRFCC: return "SPISD::BRFCC"; 23896479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose case SPISD::SELECT_ICC: return "SPISD::SELECT_ICC"; 239d563d3fb73879df7147b8a5302c3bf0e1402ba18Jordan Rose case SPISD::SELECT_FCC: return "SPISD::SELECT_FCC"; 24057c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose case SPISD::Hi: return "SPISD::Hi"; 24196479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose case SPISD::Lo: return "SPISD::Lo"; 242d563d3fb73879df7147b8a5302c3bf0e1402ba18Jordan Rose case SPISD::FTOI: return "SPISD::FTOI"; 24396479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose case SPISD::ITOF: return "SPISD::ITOF"; 24496479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose case SPISD::CALL: return "SPISD::CALL"; 24596479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose case SPISD::RET_FLAG: return "SPISD::RET_FLAG"; 24696479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose } 24796479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose} 24896479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose 24996479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose/// isMaskedValueZeroForTargetNode - Return true if 'Op & Mask' is known to 25096479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose/// be zero. Op is expected to be a target specific node. Used by DAG 25196479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose/// combiner. 25257c033621dacd8720ac9ff65a09025f14f70e22fJordan Rosebool SparcTargetLowering:: 25357c033621dacd8720ac9ff65a09025f14f70e22fJordan RoseisMaskedValueZeroForTargetNode(const SDOperand &Op, uint64_t Mask) const { 25496479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose switch (Op.getOpcode()) { 25596479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose default: return false; 25696479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose case SPISD::SELECT_ICC: 25757c033621dacd8720ac9ff65a09025f14f70e22fJordan Rose case SPISD::SELECT_FCC: 25896479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose assert(MVT::isInteger(Op.getValueType()) && "Not an integer select!"); 25996479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose // These operations are masked zero if both the left and the right are zero. 26096479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose return MaskedValueIsZero(Op.getOperand(0), Mask) && 26196479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose MaskedValueIsZero(Op.getOperand(1), Mask); 262769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 263769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 264769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 265769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 266769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/// LowerArguments - V8 uses a very simple ABI, where all values are passed in 267bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek/// either one or two GPRs, including FP values. TODO: we should pass FP values 268bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek/// in FP registers for fastcc functions. 269769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstd::vector<SDOperand> 270769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios KyrtzidisSparcTargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) { 271e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis MachineFunction &MF = DAG.getMachineFunction(); 272e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis SSARegMap *RegMap = MF.getSSARegMap(); 273e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis std::vector<SDOperand> ArgValues; 274769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 275bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek static const unsigned ArgRegs[] = { 276bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek SP::I0, SP::I1, SP::I2, SP::I3, SP::I4, SP::I5 277bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek }; 278bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek 279bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek const unsigned *CurArgReg = ArgRegs, *ArgRegEnd = ArgRegs+6; 280769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis unsigned ArgOffset = 68; 281769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 2828ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks SDOperand Root = DAG.getRoot(); 2833f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks std::vector<SDOperand> OutChains; 2843f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks 285bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek for (Function::arg_iterator I = F.arg_begin(), E = F.arg_end(); I != E; ++I) { 286bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek MVT::ValueType ObjectVT = getValueType(I->getType()); 287bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek 288bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek switch (ObjectVT) { 289063e0887ad65d666d23ee3178436ad6507abbd1bAnna Zaks default: assert(0 && "Unhandled argument type!"); 290bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek case MVT::i1: 291769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case MVT::i8: 292769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis case MVT::i16: 2939fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis case MVT::i32: 2949fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis if (I->use_empty()) { // Argument is dead. 295769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (CurArgReg < ArgRegEnd) ++CurArgReg; 296ebae6d0209e1ec3d5ea14f9e63bd0d740218ed14Anna Zaks ArgValues.push_back(DAG.getNode(ISD::UNDEF, ObjectVT)); 297769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } else if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR 298cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis unsigned VReg = RegMap->createVirtualRegister(&SP::IntRegsRegClass); 299769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis MF.addLiveIn(*CurArgReg++, VReg); 300bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek SDOperand Arg = DAG.getCopyFromReg(Root, VReg, MVT::i32); 301bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek if (ObjectVT != MVT::i32) { 302bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek unsigned AssertOp = I->getType()->isSigned() ? ISD::AssertSext 303bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek : ISD::AssertZext; 304bd613137499b1d4c3b63dccd0aa21f6add243f4fTed Kremenek Arg = DAG.getNode(AssertOp, MVT::i32, Arg, 305c2e0db82139c70c0eac9d5c165b6bf3250af5bedArgyrios Kyrtzidis DAG.getValueType(ObjectVT)); 3069fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis Arg = DAG.getNode(ISD::TRUNCATE, ObjectVT, Arg); 3079fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis } 308312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis ArgValues.push_back(Arg); 309312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis } else { 310312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset); 311312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 312312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis SDOperand Load; 313312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis if (ObjectVT == MVT::i32) { 314312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis Load = DAG.getLoad(MVT::i32, Root, FIPtr, DAG.getSrcValue(0)); 315312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis } else { 3163682f1ea9c7fddc7dcbc590891158ba40f7fca16Jordan Rose unsigned LoadOp = 317312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis I->getType()->isSigned() ? ISD::SEXTLOAD : ISD::ZEXTLOAD; 318312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis 319312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis // Sparc is big endian, so add an offset based on the ObjectVT. 320312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis unsigned Offset = 4-std::max(1U, MVT::getSizeInBits(ObjectVT)/8); 321312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis FIPtr = DAG.getNode(ISD::ADD, MVT::i32, FIPtr, 322ebae6d0209e1ec3d5ea14f9e63bd0d740218ed14Anna Zaks DAG.getConstant(Offset, MVT::i32)); 3233682f1ea9c7fddc7dcbc590891158ba40f7fca16Jordan Rose Load = DAG.getExtLoad(LoadOp, MVT::i32, Root, FIPtr, 3243682f1ea9c7fddc7dcbc590891158ba40f7fca16Jordan Rose DAG.getSrcValue(0), ObjectVT); 325312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis Load = DAG.getNode(ISD::TRUNCATE, ObjectVT, Load); 326312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis } 3278ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks ArgValues.push_back(Load); 3283682f1ea9c7fddc7dcbc590891158ba40f7fca16Jordan Rose } 329063e0887ad65d666d23ee3178436ad6507abbd1bAnna Zaks 3303f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks ArgOffset += 4; 331390909c89c98ab1807e15e033a72e975f866fb23Anna Zaks break; 332312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis case MVT::f32: 333312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis if (I->use_empty()) { // Argument is dead. 334312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis if (CurArgReg < ArgRegEnd) ++CurArgReg; 335312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis ArgValues.push_back(DAG.getNode(ISD::UNDEF, ObjectVT)); 336312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis } else if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR 337312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis // FP value is passed in an integer register. 338312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis unsigned VReg = RegMap->createVirtualRegister(&SP::IntRegsRegClass); 339312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis MF.addLiveIn(*CurArgReg++, VReg); 340ebae6d0209e1ec3d5ea14f9e63bd0d740218ed14Anna Zaks SDOperand Arg = DAG.getCopyFromReg(Root, VReg, MVT::i32); 3413682f1ea9c7fddc7dcbc590891158ba40f7fca16Jordan Rose 3423682f1ea9c7fddc7dcbc590891158ba40f7fca16Jordan Rose Arg = DAG.getNode(ISD::BIT_CONVERT, MVT::f32, Arg); 343312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis ArgValues.push_back(Arg); 344312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis } else { 345312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset); 34630726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 34730726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis SDOperand Load = DAG.getLoad(MVT::f32, Root, FIPtr, DAG.getSrcValue(0)); 34830726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis ArgValues.push_back(Load); 34930726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis } 35030726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis ArgOffset += 4; 35130726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis break; 35230726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis 353af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis case MVT::i64: 354af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks case MVT::f64: 355af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks if (I->use_empty()) { // Argument is dead. 356af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks if (CurArgReg < ArgRegEnd) ++CurArgReg; 357af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks if (CurArgReg < ArgRegEnd) ++CurArgReg; 358af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis ArgValues.push_back(DAG.getNode(ISD::UNDEF, ObjectVT)); 359af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks } else if (/* FIXME: Apparently this isn't safe?? */ 360af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks 0 && CurArgReg == ArgRegEnd && ObjectVT == MVT::f64 && 361af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks ((CurArgReg-ArgRegs) & 1) == 0) { 362af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks // If this is a double argument and the whole thing lives on the stack, 363af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks // and the argument is aligned, load the double straight from the stack. 364af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks // We can't do a load in cases like void foo([6ints], int,double), 365af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis // because the double wouldn't be aligned! 366af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks int FrameIdx = MF.getFrameInfo()->CreateFixedObject(8, ArgOffset); 367af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 368af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks ArgValues.push_back(DAG.getLoad(MVT::f64, Root, FIPtr, 369af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks DAG.getSrcValue(0))); 370af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks } else { 371063e0887ad65d666d23ee3178436ad6507abbd1bAnna Zaks SDOperand HiVal; 372af498a28797c075c48d7e943df5f5a8e78ed8eb0Anna Zaks if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR 373af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis unsigned VRegHi = RegMap->createVirtualRegister(&SP::IntRegsRegClass); 374af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis MF.addLiveIn(*CurArgReg++, VRegHi); 375af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis HiVal = DAG.getCopyFromReg(Root, VRegHi, MVT::i32); 376f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks } else { 377f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset); 378f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 379f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks HiVal = DAG.getLoad(MVT::i32, Root, FIPtr, DAG.getSrcValue(0)); 380f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks } 381f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks 382f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks SDOperand LoVal; 383f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks if (CurArgReg < ArgRegEnd) { // Lives in an incoming GPR 384f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks unsigned VRegLo = RegMap->createVirtualRegister(&SP::IntRegsRegClass); 385f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks MF.addLiveIn(*CurArgReg++, VRegLo); 386f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks LoVal = DAG.getCopyFromReg(Root, VRegLo, MVT::i32); 387f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks } else { 388f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset+4); 389f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 390f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks LoVal = DAG.getLoad(MVT::i32, Root, FIPtr, DAG.getSrcValue(0)); 391f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks } 392f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks 393f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks // Compose the two halves together into an i64 unit. 394063e0887ad65d666d23ee3178436ad6507abbd1bAnna Zaks SDOperand WholeValue = 395f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks DAG.getNode(ISD::BUILD_PAIR, MVT::i64, LoVal, HiVal); 396f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks 397f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks // If we want a double, do a bit convert. 398f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks if (ObjectVT == MVT::f64) 399f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks WholeValue = DAG.getNode(ISD::BIT_CONVERT, MVT::f64, WholeValue); 400cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis 401f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks ArgValues.push_back(WholeValue); 402f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks } 4034e82d3cf6fd4c907265e3fa3aac0a835c35dc759Anna Zaks ArgOffset += 8; 404cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis break; 405f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks } 406f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks } 407f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks 408f236b6503a4dbc44c1fccb8756bd57c9d0efdf05Anna Zaks // Store remaining ArgRegs to the stack if this is a varargs function. 409cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis if (F.getFunctionType()->isVarArg()) { 410cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis // Remember the vararg offset for the va_start implementation. 411183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis VarArgsFrameOffset = ArgOffset; 4128bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek 413183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis for (; CurArgReg != ArgRegEnd; ++CurArgReg) { 414183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis unsigned VReg = RegMap->createVirtualRegister(&SP::IntRegsRegClass); 415183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis MF.addLiveIn(*CurArgReg, VReg); 416183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis SDOperand Arg = DAG.getCopyFromReg(DAG.getRoot(), VReg, MVT::i32); 417183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis 418183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis int FrameIdx = MF.getFrameInfo()->CreateFixedObject(4, ArgOffset); 419183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis SDOperand FIPtr = DAG.getFrameIndex(FrameIdx, MVT::i32); 420183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis 421183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis OutChains.push_back(DAG.getNode(ISD::STORE, MVT::Other, DAG.getRoot(), 422183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis Arg, FIPtr, DAG.getSrcValue(0))); 423183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis ArgOffset += 4; 424183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis } 4250b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks } 426183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis 427183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis if (!OutChains.empty()) 428183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis DAG.setRoot(DAG.getNode(ISD::TokenFactor, MVT::Other, OutChains)); 429183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis 430183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis // Finally, inform the code generator which regs we return values in. 4310b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks switch (getValueType(F.getReturnType())) { 4320b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks default: assert(0 && "Unknown type!"); 4330b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks case MVT::isVoid: break; 434183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::i1: 435183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::i8: 4368ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks case MVT::i16: 4370b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks case MVT::i32: 4383f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks MF.addLiveOut(SP::I0); 439063e0887ad65d666d23ee3178436ad6507abbd1bAnna Zaks break; 4403f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks case MVT::i64: 4410b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks MF.addLiveOut(SP::I0); 4420b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks MF.addLiveOut(SP::I1); 4430b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks break; 444183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::f32: 445183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis MF.addLiveOut(SP::F0); 446183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis break; 447183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::f64: 448183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis MF.addLiveOut(SP::D0); 449183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis break; 450183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis } 451183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis 452183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis return ArgValues; 453183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis} 4540b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaks 4550b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna Zaksstd::pair<SDOperand, SDOperand> 4560b3ade86a1c60cf0c7b56aa238aff458eb7f5974Anna ZaksSparcTargetLowering::LowerCallTo(SDOperand Chain, const Type *RetTy, 457183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis bool isVarArg, unsigned CC, 458183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis bool isTailCall, SDOperand Callee, 459183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis ArgListTy &Args, SelectionDAG &DAG) { 460183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis MachineFunction &MF = DAG.getMachineFunction(); 4618bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek // Count the size of the outgoing arguments. 462183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis unsigned ArgsSize = 0; 463183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis for (unsigned i = 0, e = Args.size(); i != e; ++i) { 464183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis switch (getValueType(Args[i].second)) { 465183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis default: assert(0 && "Unknown value type!"); 466183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::i1: 467183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::i8: 468183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::i16: 469183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::i32: 4708bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek case MVT::f32: 4718bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ArgsSize += 4; 47235bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek break; 473537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose case MVT::i64: 47466c40400e7d6272b0cd675ada18dd62c1f0362c7Anna Zaks case MVT::f64: 475740d490593e0de8732a697c9f77b90ddd463863bJordan Rose ArgsSize += 8; 476183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis break; 477183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis } 478183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis } 479183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis if (ArgsSize > 4*6) 480183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis ArgsSize -= 4*6; // Space for first 6 arguments is prereserved. 481537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose else 48266c40400e7d6272b0cd675ada18dd62c1f0362c7Anna Zaks ArgsSize = 0; 483183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis 484183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis // Keep stack frames 8-byte aligned. 485183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis ArgsSize = (ArgsSize+7) & ~7; 486183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis 487312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis Chain = DAG.getNode(ISD::CALLSEQ_START, MVT::Other, Chain, 4888bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek DAG.getConstant(ArgsSize, getPointerTy())); 4898bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek 490312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis SDOperand StackPtr, NullSV; 491312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis std::vector<SDOperand> Stores; 492312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis std::vector<SDOperand> RegValuesToPass; 493312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis unsigned ArgOffset = 68; 494312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis for (unsigned i = 0, e = Args.size(); i != e; ++i) { 495312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis SDOperand Val = Args[i].first; 496312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis MVT::ValueType ObjectVT = Val.getValueType(); 497312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis SDOperand ValToStore(0, 0); 498312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis unsigned ObjSize; 499312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis switch (ObjectVT) { 500312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis default: assert(0 && "Unhandled argument type!"); 501e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis case MVT::i1: 502e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis case MVT::i8: 503e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis case MVT::i16: 504e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis // Promote the integer to 32-bits. If the input type is signed, use a 505645baeed6800f952e9ad1d5666e01080385531a2Jordan Rose // sign extend, otherwise use a zero extend. 50669f87c956b3ac2b80124fd9604af012e1061473aJordan Rose if (Args[i].second->isSigned()) 507645baeed6800f952e9ad1d5666e01080385531a2Jordan Rose Val = DAG.getNode(ISD::SIGN_EXTEND, MVT::i32, Val); 508e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis else 509e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis Val = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Val); 510e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis // FALL THROUGH 511e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis case MVT::i32: 512dff6ef903ff4fcb43b5ea292ecd772e381393b5dAnna Zaks ObjSize = 4; 5138ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks 5148ff5c41f2bde7ebbe568b4c15e59f14b8befae66Anna Zaks if (RegValuesToPass.size() >= 6) { 51542e95acef35f4633119be1c1381e88878c966502Jordan Rose ValToStore = Val; 51642e95acef35f4633119be1c1381e88878c966502Jordan Rose } else { 517e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis RegValuesToPass.push_back(Val); 518e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis } 519e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis break; 5203f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks case MVT::f32: 5213f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks ObjSize = 4; 5223f5e8d87dbf449d8b39fe96068415428594d370eAnna Zaks if (RegValuesToPass.size() >= 6) { 523b1576f7136163ce3efd6dcf5a3e53e1c8ec6520cAnna Zaks ValToStore = Val; 524b1576f7136163ce3efd6dcf5a3e53e1c8ec6520cAnna Zaks } else { 525b1576f7136163ce3efd6dcf5a3e53e1c8ec6520cAnna Zaks // Convert this to a FP value in an int reg. 526b1576f7136163ce3efd6dcf5a3e53e1c8ec6520cAnna Zaks Val = DAG.getNode(ISD::BIT_CONVERT, MVT::i32, Val); 527063e0887ad65d666d23ee3178436ad6507abbd1bAnna Zaks RegValuesToPass.push_back(Val); 528b1576f7136163ce3efd6dcf5a3e53e1c8ec6520cAnna Zaks } 529b1576f7136163ce3efd6dcf5a3e53e1c8ec6520cAnna Zaks break; 530e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis case MVT::f64: 531e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis ObjSize = 8; 532e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis // If we can store this directly into the outgoing slot, do so. We can 533e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis // do this when all ArgRegs are used and if the outgoing slot is aligned. 534e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis // FIXME: McGill/misr fails with this. 535e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis if (0 && RegValuesToPass.size() >= 6 && ((ArgOffset-68) & 7) == 0) { 536e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis ValToStore = Val; 537e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis break; 538e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis } 539e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis 540e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis // Otherwise, convert this to a FP value in int regs. 541dff6ef903ff4fcb43b5ea292ecd772e381393b5dAnna Zaks Val = DAG.getNode(ISD::BIT_CONVERT, MVT::i64, Val); 542e81ce256b62717dd846bd19aecc4115a0dcd4995Anna Zaks // FALL THROUGH 543e81ce256b62717dd846bd19aecc4115a0dcd4995Anna Zaks case MVT::i64: 544e81ce256b62717dd846bd19aecc4115a0dcd4995Anna Zaks ObjSize = 8; 545e81ce256b62717dd846bd19aecc4115a0dcd4995Anna Zaks if (RegValuesToPass.size() >= 6) { 546e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis ValToStore = Val; // Whole thing is passed in memory. 547e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis break; 548e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis } 5499be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 5509be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek // Split the value into top and bottom part. Top part goes in a reg. 5519be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek SDOperand Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, MVT::i32, Val, 5529be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek DAG.getConstant(1, MVT::i32)); 5539be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek SDOperand Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, MVT::i32, Val, 5549be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek DAG.getConstant(0, MVT::i32)); 5559be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek RegValuesToPass.push_back(Hi); 5569be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 5579be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek if (RegValuesToPass.size() >= 6) { 558dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose ValToStore = Lo; 5598bef8238181a30e52dea380789a7e2d760eac532Ted Kremenek ArgOffset += 4; 560dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose ObjSize = 4; 561dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose } else { 562dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose RegValuesToPass.push_back(Lo); 563dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose } 564dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose break; 565dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose } 566769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 567769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (ValToStore.Val) { 568769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (!StackPtr.Val) { 569769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis StackPtr = DAG.getRegister(SP::O6, MVT::i32); 570769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis NullSV = DAG.getSrcValue(NULL); 571769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 572769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis SDOperand PtrOff = DAG.getConstant(ArgOffset, getPointerTy()); 573769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis PtrOff = DAG.getNode(ISD::ADD, MVT::i32, StackPtr, PtrOff); 574769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis Stores.push_back(DAG.getNode(ISD::STORE, MVT::Other, Chain, 575769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis ValToStore, PtrOff, NullSV)); 576769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 577769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis ArgOffset += ObjSize; 578769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 579769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 580769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // Emit all stores, make sure the occur before any copies into physregs. 581769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (!Stores.empty()) 582769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis Chain = DAG.getNode(ISD::TokenFactor, MVT::Other, Stores); 583769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 584769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis static const unsigned ArgRegs[] = { 585769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis SP::O0, SP::O1, SP::O2, SP::O3, SP::O4, SP::O5 586769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis }; 587769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 588769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // Build a sequence of copy-to-reg nodes chained together with token chain 589769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // and flag operands which copy the outgoing args into O[0-5]. 590769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis SDOperand InFlag; 591769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis for (unsigned i = 0, e = RegValuesToPass.size(); i != e; ++i) { 592769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis Chain = DAG.getCopyToReg(Chain, ArgRegs[i], RegValuesToPass[i], InFlag); 593769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis InFlag = Chain.getValue(1); 594769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 595769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 596769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // If the callee is a GlobalAddress node (quite common, every direct call is) 597769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis // turn it into a TargetGlobalAddress node so that legalize doesn't hack it. 598769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (GlobalAddressSDNode *G = dyn_cast<GlobalAddressSDNode>(Callee)) 599769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis Callee = DAG.getTargetGlobalAddress(G->getGlobal(), MVT::i32); 600769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 601769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis std::vector<MVT::ValueType> NodeTys; 60296479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose NodeTys.push_back(MVT::Other); // Returns a chain 60396479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose NodeTys.push_back(MVT::Flag); // Returns a flag for retval copy to use. 60496479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose std::vector<SDOperand> Ops; 60596479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose Ops.push_back(Chain); 60696479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose Ops.push_back(Callee); 60796479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose if (InFlag.Val) 60896479da6ad9d921d875e7be29fe1bfa127be8069Jordan Rose Ops.push_back(InFlag); 609769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis Chain = DAG.getNode(SPISD::CALL, NodeTys, Ops); 610769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis InFlag = Chain.getValue(1); 611769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 612769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis MVT::ValueType RetTyVT = getValueType(RetTy); 613312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis SDOperand RetVal; 614312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis if (RetTyVT != MVT::isVoid) { 615312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis switch (RetTyVT) { 616312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis default: assert(0 && "Unknown value type to return!"); 61730726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis case MVT::i1: 61830726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis case MVT::i8: 61930726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis case MVT::i16: 62030726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis RetVal = DAG.getCopyFromReg(Chain, SP::O0, MVT::i32, InFlag); 621af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis Chain = RetVal.getValue(1); 622af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis 623af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis // Add a note to keep track of whether it is sign or zero extended. 624af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis RetVal = DAG.getNode(RetTy->isSigned() ? ISD::AssertSext :ISD::AssertZext, 625cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis MVT::i32, RetVal, DAG.getValueType(RetTyVT)); 626cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis RetVal = DAG.getNode(ISD::TRUNCATE, RetTyVT, RetVal); 627cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis break; 628cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis case MVT::i32: 629cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis RetVal = DAG.getCopyFromReg(Chain, SP::O0, MVT::i32, InFlag); 630183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis Chain = RetVal.getValue(1); 631183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis break; 632183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::f32: 633183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis RetVal = DAG.getCopyFromReg(Chain, SP::F0, MVT::f32, InFlag); 634183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis Chain = RetVal.getValue(1); 635183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis break; 636183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::f64: 637183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis RetVal = DAG.getCopyFromReg(Chain, SP::D0, MVT::f64, InFlag); 638183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis Chain = RetVal.getValue(1); 639183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis break; 640183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis case MVT::i64: 641183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis SDOperand Lo = DAG.getCopyFromReg(Chain, SP::O1, MVT::i32, InFlag); 642183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis SDOperand Hi = DAG.getCopyFromReg(Lo.getValue(1), SP::O0, MVT::i32, 643183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis Lo.getValue(2)); 644312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis RetVal = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, Lo, Hi); 645312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis Chain = Hi.getValue(1); 646312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis break; 647312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis } 648e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis } 649e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis 650e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis Chain = DAG.getNode(ISD::CALLSEQ_END, MVT::Other, Chain, 651e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis DAG.getConstant(ArgsSize, getPointerTy())); 6529be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 6539be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek return std::make_pair(RetVal, Chain); 6549be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek} 6559be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 6569be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenekstd::pair<SDOperand, SDOperand> SparcTargetLowering:: 657769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios KyrtzidisLowerFrameReturnAddress(bool isFrameAddr, SDOperand Chain, unsigned Depth, 658769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis SelectionDAG &DAG) { 659769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis assert(0 && "Unimp"); 660769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis abort(); 661769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 662769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 663769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis// Look at LHS/RHS/CC and see if they are a lowered setcc instruction. If so 664769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis// set LHS/RHS and SPCC to the LHS/RHS of the setcc and SPCC to the condition. 665769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstatic void LookThroughSetCC(SDOperand &LHS, SDOperand &RHS, 666769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis ISD::CondCode CC, unsigned &SPCC) { 667769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (isa<ConstantSDNode>(RHS) && cast<ConstantSDNode>(RHS)->getValue() == 0 && 668769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis CC == ISD::SETNE && 669769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis ((LHS.getOpcode() == SPISD::SELECT_ICC && 670769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis LHS.getOperand(3).getOpcode() == SPISD::CMPICC) || 671769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis (LHS.getOpcode() == SPISD::SELECT_FCC && 672769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis LHS.getOperand(3).getOpcode() == SPISD::CMPFCC)) && 673769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis isa<ConstantSDNode>(LHS.getOperand(0)) && 674769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis isa<ConstantSDNode>(LHS.getOperand(1)) && 675769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis cast<ConstantSDNode>(LHS.getOperand(0))->getValue() == 1 && 676769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis cast<ConstantSDNode>(LHS.getOperand(1))->getValue() == 0) { 677769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis SDOperand CMPCC = LHS.getOperand(3); 6789fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis SPCC = cast<ConstantSDNode>(LHS.getOperand(2))->getValue(); 679769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis LHS = CMPCC.getOperand(0); 680769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis RHS = CMPCC.getOperand(1); 681769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 682769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 683769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 684769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 685769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios KyrtzidisSDOperand SparcTargetLowering:: 686769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios KyrtzidisLowerOperation(SDOperand Op, SelectionDAG &DAG) { 6879fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis switch (Op.getOpcode()) { 688 default: assert(0 && "Should not custom lower this!"); 689 case ISD::GlobalAddress: { 690 GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal(); 691 SDOperand GA = DAG.getTargetGlobalAddress(GV, MVT::i32); 692 SDOperand Hi = DAG.getNode(SPISD::Hi, MVT::i32, GA); 693 SDOperand Lo = DAG.getNode(SPISD::Lo, MVT::i32, GA); 694 return DAG.getNode(ISD::ADD, MVT::i32, Lo, Hi); 695 } 696 case ISD::ConstantPool: { 697 Constant *C = cast<ConstantPoolSDNode>(Op)->get(); 698 SDOperand CP = DAG.getTargetConstantPool(C, MVT::i32, 699 cast<ConstantPoolSDNode>(Op)->getAlignment()); 700 SDOperand Hi = DAG.getNode(SPISD::Hi, MVT::i32, CP); 701 SDOperand Lo = DAG.getNode(SPISD::Lo, MVT::i32, CP); 702 return DAG.getNode(ISD::ADD, MVT::i32, Lo, Hi); 703 } 704 case ISD::FP_TO_SINT: 705 // Convert the fp value to integer in an FP register. 706 assert(Op.getValueType() == MVT::i32); 707 Op = DAG.getNode(SPISD::FTOI, MVT::f32, Op.getOperand(0)); 708 return DAG.getNode(ISD::BIT_CONVERT, MVT::i32, Op); 709 case ISD::SINT_TO_FP: { 710 assert(Op.getOperand(0).getValueType() == MVT::i32); 711 SDOperand Tmp = DAG.getNode(ISD::BIT_CONVERT, MVT::f32, Op.getOperand(0)); 712 // Convert the int value to FP in an FP register. 713 return DAG.getNode(SPISD::ITOF, Op.getValueType(), Tmp); 714 } 715 case ISD::BR_CC: { 716 SDOperand Chain = Op.getOperand(0); 717 ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(1))->get(); 718 SDOperand LHS = Op.getOperand(2); 719 SDOperand RHS = Op.getOperand(3); 720 SDOperand Dest = Op.getOperand(4); 721 unsigned Opc, SPCC = ~0U; 722 723 // If this is a br_cc of a "setcc", and if the setcc got lowered into 724 // an CMP[IF]CC/SELECT_[IF]CC pair, find the original compared values. 725 LookThroughSetCC(LHS, RHS, CC, SPCC); 726 727 // Get the condition flag. 728 SDOperand CompareFlag; 729 if (LHS.getValueType() == MVT::i32) { 730 std::vector<MVT::ValueType> VTs; 731 VTs.push_back(MVT::i32); 732 VTs.push_back(MVT::Flag); 733 std::vector<SDOperand> Ops; 734 Ops.push_back(LHS); 735 Ops.push_back(RHS); 736 CompareFlag = DAG.getNode(SPISD::CMPICC, VTs, Ops).getValue(1); 737 if (SPCC == ~0U) SPCC = IntCondCCodeToICC(CC); 738 Opc = SPISD::BRICC; 739 } else { 740 CompareFlag = DAG.getNode(SPISD::CMPFCC, MVT::Flag, LHS, RHS); 741 if (SPCC == ~0U) SPCC = FPCondCCodeToFCC(CC); 742 Opc = SPISD::BRFCC; 743 } 744 return DAG.getNode(Opc, MVT::Other, Chain, Dest, 745 DAG.getConstant(SPCC, MVT::i32), CompareFlag); 746 } 747 case ISD::SELECT_CC: { 748 SDOperand LHS = Op.getOperand(0); 749 SDOperand RHS = Op.getOperand(1); 750 ISD::CondCode CC = cast<CondCodeSDNode>(Op.getOperand(4))->get(); 751 SDOperand TrueVal = Op.getOperand(2); 752 SDOperand FalseVal = Op.getOperand(3); 753 unsigned Opc, SPCC = ~0U; 754 755 // If this is a select_cc of a "setcc", and if the setcc got lowered into 756 // an CMP[IF]CC/SELECT_[IF]CC pair, find the original compared values. 757 LookThroughSetCC(LHS, RHS, CC, SPCC); 758 759 SDOperand CompareFlag; 760 if (LHS.getValueType() == MVT::i32) { 761 std::vector<MVT::ValueType> VTs; 762 VTs.push_back(LHS.getValueType()); // subcc returns a value 763 VTs.push_back(MVT::Flag); 764 std::vector<SDOperand> Ops; 765 Ops.push_back(LHS); 766 Ops.push_back(RHS); 767 CompareFlag = DAG.getNode(SPISD::CMPICC, VTs, Ops).getValue(1); 768 Opc = SPISD::SELECT_ICC; 769 if (SPCC == ~0U) SPCC = IntCondCCodeToICC(CC); 770 } else { 771 CompareFlag = DAG.getNode(SPISD::CMPFCC, MVT::Flag, LHS, RHS); 772 Opc = SPISD::SELECT_FCC; 773 if (SPCC == ~0U) SPCC = FPCondCCodeToFCC(CC); 774 } 775 return DAG.getNode(Opc, TrueVal.getValueType(), TrueVal, FalseVal, 776 DAG.getConstant(SPCC, MVT::i32), CompareFlag); 777 } 778 case ISD::VASTART: { 779 // vastart just stores the address of the VarArgsFrameIndex slot into the 780 // memory location argument. 781 SDOperand Offset = DAG.getNode(ISD::ADD, MVT::i32, 782 DAG.getRegister(SP::I6, MVT::i32), 783 DAG.getConstant(VarArgsFrameOffset, MVT::i32)); 784 return DAG.getNode(ISD::STORE, MVT::Other, Op.getOperand(0), Offset, 785 Op.getOperand(1), Op.getOperand(2)); 786 } 787 case ISD::VAARG: { 788 SDNode *Node = Op.Val; 789 MVT::ValueType VT = Node->getValueType(0); 790 SDOperand InChain = Node->getOperand(0); 791 SDOperand VAListPtr = Node->getOperand(1); 792 SDOperand VAList = DAG.getLoad(getPointerTy(), InChain, VAListPtr, 793 Node->getOperand(2)); 794 // Increment the pointer, VAList, to the next vaarg 795 SDOperand NextPtr = DAG.getNode(ISD::ADD, getPointerTy(), VAList, 796 DAG.getConstant(MVT::getSizeInBits(VT)/8, 797 getPointerTy())); 798 // Store the incremented VAList to the legalized pointer 799 InChain = DAG.getNode(ISD::STORE, MVT::Other, VAList.getValue(1), NextPtr, 800 VAListPtr, Node->getOperand(2)); 801 // Load the actual argument out of the pointer VAList, unless this is an 802 // f64 load. 803 if (VT != MVT::f64) { 804 return DAG.getLoad(VT, InChain, VAList, DAG.getSrcValue(0)); 805 } else { 806 // Otherwise, load it as i64, then do a bitconvert. 807 SDOperand V = DAG.getLoad(MVT::i64, InChain, VAList, DAG.getSrcValue(0)); 808 std::vector<MVT::ValueType> Tys; 809 Tys.push_back(MVT::f64); 810 Tys.push_back(MVT::Other); 811 std::vector<SDOperand> Ops; 812 // Bit-Convert the value to f64. 813 Ops.push_back(DAG.getNode(ISD::BIT_CONVERT, MVT::f64, V)); 814 Ops.push_back(V.getValue(1)); 815 return DAG.getNode(ISD::MERGE_VALUES, Tys, Ops); 816 } 817 } 818 case ISD::RET: { 819 SDOperand Copy; 820 821 switch(Op.getNumOperands()) { 822 default: 823 assert(0 && "Do not know how to return this many arguments!"); 824 abort(); 825 case 1: 826 return SDOperand(); // ret void is legal 827 case 2: { 828 unsigned ArgReg; 829 switch(Op.getOperand(1).getValueType()) { 830 default: assert(0 && "Unknown type to return!"); 831 case MVT::i32: ArgReg = SP::I0; break; 832 case MVT::f32: ArgReg = SP::F0; break; 833 case MVT::f64: ArgReg = SP::D0; break; 834 } 835 Copy = DAG.getCopyToReg(Op.getOperand(0), ArgReg, Op.getOperand(1), 836 SDOperand()); 837 break; 838 } 839 case 3: 840 Copy = DAG.getCopyToReg(Op.getOperand(0), SP::I0, Op.getOperand(2), 841 SDOperand()); 842 Copy = DAG.getCopyToReg(Copy, SP::I1, Op.getOperand(1), Copy.getValue(1)); 843 break; 844 } 845 return DAG.getNode(SPISD::RET_FLAG, MVT::Other, Copy, Copy.getValue(1)); 846 } 847 } 848} 849 850MachineBasicBlock * 851SparcTargetLowering::InsertAtEndOfBasicBlock(MachineInstr *MI, 852 MachineBasicBlock *BB) { 853 unsigned BROpcode; 854 unsigned CC; 855 // Figure out the conditional branch opcode to use for this select_cc. 856 switch (MI->getOpcode()) { 857 default: assert(0 && "Unknown SELECT_CC!"); 858 case SP::SELECT_CC_Int_ICC: 859 case SP::SELECT_CC_FP_ICC: 860 case SP::SELECT_CC_DFP_ICC: 861 BROpcode = SP::BCOND; 862 break; 863 case SP::SELECT_CC_Int_FCC: 864 case SP::SELECT_CC_FP_FCC: 865 case SP::SELECT_CC_DFP_FCC: 866 BROpcode = SP::FBCOND; 867 break; 868 } 869 870 CC = (SPCC::CondCodes)MI->getOperand(3).getImmedValue(); 871 872 // To "insert" a SELECT_CC instruction, we actually have to insert the diamond 873 // control-flow pattern. The incoming instruction knows the destination vreg 874 // to set, the condition code register to branch on, the true/false values to 875 // select between, and a branch opcode to use. 876 const BasicBlock *LLVM_BB = BB->getBasicBlock(); 877 ilist<MachineBasicBlock>::iterator It = BB; 878 ++It; 879 880 // thisMBB: 881 // ... 882 // TrueVal = ... 883 // [f]bCC copy1MBB 884 // fallthrough --> copy0MBB 885 MachineBasicBlock *thisMBB = BB; 886 MachineBasicBlock *copy0MBB = new MachineBasicBlock(LLVM_BB); 887 MachineBasicBlock *sinkMBB = new MachineBasicBlock(LLVM_BB); 888 BuildMI(BB, BROpcode, 2).addMBB(sinkMBB).addImm(CC); 889 MachineFunction *F = BB->getParent(); 890 F->getBasicBlockList().insert(It, copy0MBB); 891 F->getBasicBlockList().insert(It, sinkMBB); 892 // Update machine-CFG edges 893 BB->addSuccessor(copy0MBB); 894 BB->addSuccessor(sinkMBB); 895 896 // copy0MBB: 897 // %FalseValue = ... 898 // # fallthrough to sinkMBB 899 BB = copy0MBB; 900 901 // Update machine-CFG edges 902 BB->addSuccessor(sinkMBB); 903 904 // sinkMBB: 905 // %Result = phi [ %FalseValue, copy0MBB ], [ %TrueValue, thisMBB ] 906 // ... 907 BB = sinkMBB; 908 BuildMI(BB, SP::PHI, 4, MI->getOperand(0).getReg()) 909 .addReg(MI->getOperand(2).getReg()).addMBB(copy0MBB) 910 .addReg(MI->getOperand(1).getReg()).addMBB(thisMBB); 911 912 delete MI; // The pseudo instruction is gone now. 913 return BB; 914} 915 916//===----------------------------------------------------------------------===// 917// Instruction Selector Implementation 918//===----------------------------------------------------------------------===// 919 920//===--------------------------------------------------------------------===// 921/// SparcDAGToDAGISel - SPARC specific code to select SPARC machine 922/// instructions for SelectionDAG operations. 923/// 924namespace { 925class SparcDAGToDAGISel : public SelectionDAGISel { 926 SparcTargetLowering Lowering; 927 928 /// Subtarget - Keep a pointer to the Sparc Subtarget around so that we can 929 /// make the right decision when generating code for different targets. 930 const SparcSubtarget &Subtarget; 931public: 932 SparcDAGToDAGISel(TargetMachine &TM) 933 : SelectionDAGISel(Lowering), Lowering(TM), 934 Subtarget(TM.getSubtarget<SparcSubtarget>()) { 935 } 936 937 void Select(SDOperand &Result, SDOperand Op); 938 939 // Complex Pattern Selectors. 940 bool SelectADDRrr(SDOperand N, SDOperand &R1, SDOperand &R2); 941 bool SelectADDRri(SDOperand N, SDOperand &Base, SDOperand &Offset); 942 943 /// InstructionSelectBasicBlock - This callback is invoked by 944 /// SelectionDAGISel when it has created a SelectionDAG for us to codegen. 945 virtual void InstructionSelectBasicBlock(SelectionDAG &DAG); 946 947 virtual const char *getPassName() const { 948 return "SPARC DAG->DAG Pattern Instruction Selection"; 949 } 950 951 // Include the pieces autogenerated from the target description. 952#include "SparcGenDAGISel.inc" 953}; 954} // end anonymous namespace 955 956/// InstructionSelectBasicBlock - This callback is invoked by 957/// SelectionDAGISel when it has created a SelectionDAG for us to codegen. 958void SparcDAGToDAGISel::InstructionSelectBasicBlock(SelectionDAG &DAG) { 959 DEBUG(BB->dump()); 960 961 // Select target instructions for the DAG. 962 DAG.setRoot(SelectRoot(DAG.getRoot())); 963 CodeGenMap.clear(); 964 DAG.RemoveDeadNodes(); 965 966 // Emit machine code to BB. 967 ScheduleAndEmitDAG(DAG); 968} 969 970bool SparcDAGToDAGISel::SelectADDRri(SDOperand Addr, SDOperand &Base, 971 SDOperand &Offset) { 972 if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) { 973 Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32); 974 Offset = CurDAG->getTargetConstant(0, MVT::i32); 975 return true; 976 } 977 978 if (Addr.getOpcode() == ISD::ADD) { 979 if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Addr.getOperand(1))) { 980 if (Predicate_simm13(CN)) { 981 if (FrameIndexSDNode *FIN = 982 dyn_cast<FrameIndexSDNode>(Addr.getOperand(0))) { 983 // Constant offset from frame ref. 984 Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32); 985 } else { 986 Base = Addr.getOperand(0); 987 } 988 Offset = CurDAG->getTargetConstant(CN->getValue(), MVT::i32); 989 return true; 990 } 991 } 992 if (Addr.getOperand(0).getOpcode() == SPISD::Lo) { 993 Base = Addr.getOperand(1); 994 Offset = Addr.getOperand(0).getOperand(0); 995 return true; 996 } 997 if (Addr.getOperand(1).getOpcode() == SPISD::Lo) { 998 Base = Addr.getOperand(0); 999 Offset = Addr.getOperand(1).getOperand(0); 1000 return true; 1001 } 1002 } 1003 Base = Addr; 1004 Offset = CurDAG->getTargetConstant(0, MVT::i32); 1005 return true; 1006} 1007 1008bool SparcDAGToDAGISel::SelectADDRrr(SDOperand Addr, SDOperand &R1, 1009 SDOperand &R2) { 1010 if (Addr.getOpcode() == ISD::FrameIndex) return false; 1011 if (Addr.getOpcode() == ISD::ADD) { 1012 if (isa<ConstantSDNode>(Addr.getOperand(1)) && 1013 Predicate_simm13(Addr.getOperand(1).Val)) 1014 return false; // Let the reg+imm pattern catch this! 1015 if (Addr.getOperand(0).getOpcode() == SPISD::Lo || 1016 Addr.getOperand(1).getOpcode() == SPISD::Lo) 1017 return false; // Let the reg+imm pattern catch this! 1018 R1 = Addr.getOperand(0); 1019 R2 = Addr.getOperand(1); 1020 return true; 1021 } 1022 1023 R1 = Addr; 1024 R2 = CurDAG->getRegister(SP::G0, MVT::i32); 1025 return true; 1026} 1027 1028void SparcDAGToDAGISel::Select(SDOperand &Result, SDOperand Op) { 1029 SDNode *N = Op.Val; 1030 if (N->getOpcode() >= ISD::BUILTIN_OP_END && 1031 N->getOpcode() < SPISD::FIRST_NUMBER) { 1032 Result = Op; 1033 return; // Already selected. 1034 } 1035 1036 // If this has already been converted, use it. 1037 std::map<SDOperand, SDOperand>::iterator CGMI = CodeGenMap.find(Op); 1038 if (CGMI != CodeGenMap.end()) { 1039 Result = CGMI->second; 1040 return; 1041 } 1042 1043 switch (N->getOpcode()) { 1044 default: break; 1045 case ISD::FrameIndex: { 1046 int FI = cast<FrameIndexSDNode>(N)->getIndex(); 1047 if (N->hasOneUse()) { 1048 Result = CurDAG->SelectNodeTo(N, SP::ADDri, MVT::i32, 1049 CurDAG->getTargetFrameIndex(FI, MVT::i32), 1050 CurDAG->getTargetConstant(0, MVT::i32)); 1051 return; 1052 } 1053 1054 Result = CodeGenMap[Op] = 1055 CurDAG->getTargetNode(SP::ADDri, MVT::i32, 1056 CurDAG->getTargetFrameIndex(FI, MVT::i32), 1057 CurDAG->getTargetConstant(0, MVT::i32)); 1058 return; 1059 } 1060 case ISD::ADD_PARTS: { 1061 SDOperand LHSL, LHSH, RHSL, RHSH; 1062 Select(LHSL, N->getOperand(0)); 1063 Select(LHSH, N->getOperand(1)); 1064 Select(RHSL, N->getOperand(2)); 1065 Select(RHSH, N->getOperand(3)); 1066 // FIXME, handle immediate RHS. 1067 SDOperand Low = CurDAG->getTargetNode(SP::ADDCCrr, MVT::i32, MVT::Flag, 1068 LHSL, RHSL); 1069 SDOperand Hi = CurDAG->getTargetNode(SP::ADDXrr, MVT::i32, LHSH, RHSH, 1070 Low.getValue(1)); 1071 CodeGenMap[SDOperand(N, 0)] = Low; 1072 CodeGenMap[SDOperand(N, 1)] = Hi; 1073 Result = Op.ResNo ? Hi : Low; 1074 return; 1075 } 1076 case ISD::SUB_PARTS: { 1077 SDOperand LHSL, LHSH, RHSL, RHSH; 1078 Select(LHSL, N->getOperand(0)); 1079 Select(LHSH, N->getOperand(1)); 1080 Select(RHSL, N->getOperand(2)); 1081 Select(RHSH, N->getOperand(3)); 1082 SDOperand Low = CurDAG->getTargetNode(SP::SUBCCrr, MVT::i32, MVT::Flag, 1083 LHSL, RHSL); 1084 SDOperand Hi = CurDAG->getTargetNode(SP::SUBXrr, MVT::i32, LHSH, RHSH, 1085 Low.getValue(1)); 1086 CodeGenMap[SDOperand(N, 0)] = Low; 1087 CodeGenMap[SDOperand(N, 1)] = Hi; 1088 Result = Op.ResNo ? Hi : Low; 1089 return; 1090 } 1091 case ISD::SDIV: 1092 case ISD::UDIV: { 1093 // FIXME: should use a custom expander to expose the SRA to the dag. 1094 SDOperand DivLHS, DivRHS; 1095 Select(DivLHS, N->getOperand(0)); 1096 Select(DivRHS, N->getOperand(1)); 1097 1098 // Set the Y register to the high-part. 1099 SDOperand TopPart; 1100 if (N->getOpcode() == ISD::SDIV) { 1101 TopPart = CurDAG->getTargetNode(SP::SRAri, MVT::i32, DivLHS, 1102 CurDAG->getTargetConstant(31, MVT::i32)); 1103 } else { 1104 TopPart = CurDAG->getRegister(SP::G0, MVT::i32); 1105 } 1106 TopPart = CurDAG->getTargetNode(SP::WRYrr, MVT::Flag, TopPart, 1107 CurDAG->getRegister(SP::G0, MVT::i32)); 1108 1109 // FIXME: Handle div by immediate. 1110 unsigned Opcode = N->getOpcode() == ISD::SDIV ? SP::SDIVrr : SP::UDIVrr; 1111 Result = CurDAG->SelectNodeTo(N, Opcode, MVT::i32, DivLHS, DivRHS, TopPart); 1112 return; 1113 } 1114 case ISD::MULHU: 1115 case ISD::MULHS: { 1116 // FIXME: Handle mul by immediate. 1117 SDOperand MulLHS, MulRHS; 1118 Select(MulLHS, N->getOperand(0)); 1119 Select(MulRHS, N->getOperand(1)); 1120 unsigned Opcode = N->getOpcode() == ISD::MULHU ? SP::UMULrr : SP::SMULrr; 1121 SDOperand Mul = CurDAG->getTargetNode(Opcode, MVT::i32, MVT::Flag, 1122 MulLHS, MulRHS); 1123 // The high part is in the Y register. 1124 Result = CurDAG->SelectNodeTo(N, SP::RDY, MVT::i32, Mul.getValue(1)); 1125 return; 1126 } 1127 case SPISD::CALL: 1128 // FIXME: This is a workaround for a bug in tblgen. 1129 { // Pattern #47: (call:Flag (tglobaladdr:i32):$dst, ICC:Flag) 1130 // Emits: (CALL:void (tglobaladdr:i32):$dst) 1131 // Pattern complexity = 2 cost = 1 1132 SDOperand N1 = N->getOperand(1); 1133 if (N1.getOpcode() != ISD::TargetGlobalAddress && 1134 N1.getOpcode() != ISD::ExternalSymbol) goto P47Fail; 1135 SDOperand InFlag = SDOperand(0, 0); 1136 SDOperand Chain = N->getOperand(0); 1137 SDOperand Tmp0 = N1; 1138 Select(Chain, Chain); 1139 if (N->getNumOperands() == 3) { 1140 Select(InFlag, N->getOperand(2)); 1141 Result = CurDAG->getTargetNode(SP::CALL, MVT::Other, MVT::Flag, Tmp0, 1142 Chain, InFlag); 1143 } else { 1144 Result = CurDAG->getTargetNode(SP::CALL, MVT::Other, MVT::Flag, Tmp0, 1145 Chain); 1146 } 1147 Chain = CodeGenMap[SDOperand(N, 0)] = Result.getValue(0); 1148 CodeGenMap[SDOperand(N, 1)] = Result.getValue(1); 1149 Result = Result.getValue(Op.ResNo); 1150 return; 1151 } 1152 P47Fail:; 1153 1154 } 1155 1156 SelectCode(Result, Op); 1157} 1158 1159 1160/// createSparcISelDag - This pass converts a legalized DAG into a 1161/// SPARC-specific DAG, ready for instruction scheduling. 1162/// 1163FunctionPass *llvm::createSparcISelDag(TargetMachine &TM) { 1164 return new SparcDAGToDAGISel(TM); 1165} 1166