FastISel.h revision 3d45a853db014fdddcdb79424e663dfed5eccbc7
1b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman//===-- FastISel.h - Definition of the FastISel class ---------------------===// 2b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// 3b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// The LLVM Compiler Infrastructure 4b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// 5b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// This file is distributed under the University of Illinois Open Source 6b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// License. See LICENSE.TXT for details. 7b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// 8b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman//===----------------------------------------------------------------------===// 9b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// 10b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// This file defines the FastISel class. 11b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman// 12b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman//===----------------------------------------------------------------------===// 13b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 14b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman#ifndef LLVM_CODEGEN_FASTISEL_H 15b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman#define LLVM_CODEGEN_FASTISEL_H 16b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 17b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman#include "llvm/ADT/DenseMap.h" 18dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman#include "llvm/ADT/SmallSet.h" 19b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman#include "llvm/CodeGen/SelectionDAGNodes.h" 20b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 21b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohmannamespace llvm { 22b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 230586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohmanclass AllocaInst; 2410df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohmanclass ConstantFP; 25dd5b58ad7be78be90390074f0df138778af5c895Dan Gohmanclass Instruction; 26b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohmanclass MachineBasicBlock; 2795267a1e671efc3c14e916b6978bbb15973b4cdcOwen Andersonclass MachineConstantPool; 28b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohmanclass MachineFunction; 290586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohmanclass MachineFrameInfo; 30d57dd5f4e6740520820bc0fca42a540e31c27a73Dan Gohmanclass MachineModuleInfo; 3183489bb7700c69b7a4a8da59365c42d3f5c8129bDevang Patelclass DwarfWriter; 32bb466331e7e50d03497ce40ee344870236fd9c32Dan Gohmanclass MachineRegisterInfo; 3383785c80968165b30fcdd111ceb2c28d38bcff86Evan Chengclass TargetData; 34b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohmanclass TargetInstrInfo; 3583785c80968165b30fcdd111ceb2c28d38bcff86Evan Chengclass TargetLowering; 3622bb31103de3337f0bb74c7bee16d1817d4dca14Dan Gohmanclass TargetMachine; 37b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohmanclass TargetRegisterClass; 38b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 3940610241d00e219341ff4b7106c5baff08ad407bDan Gohman/// FastISel - This is a fast-path instruction selection class that 4040610241d00e219341ff4b7106c5baff08ad407bDan Gohman/// generates poor code and doesn't support illegal types or non-trivial 4140610241d00e219341ff4b7106c5baff08ad407bDan Gohman/// lowering, but runs quickly. 42b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohmanclass FastISel { 4322bb31103de3337f0bb74c7bee16d1817d4dca14Dan Gohmanprotected: 44b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman MachineBasicBlock *MBB; 45104e4ce1629ea84736691bd1ee7867bdf90e8a2eDan Gohman DenseMap<const Value *, unsigned> LocalValueMap; 463df24e667f04a7003342b534310919abc9c87418Dan Gohman DenseMap<const Value *, unsigned> &ValueMap; 473df24e667f04a7003342b534310919abc9c87418Dan Gohman DenseMap<const BasicBlock *, MachineBasicBlock *> &MBBMap; 480586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman DenseMap<const AllocaInst *, int> &StaticAllocaMap; 49dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman#ifndef NDEBUG 50dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman SmallSet<Instruction*, 8> &CatchInfoLost; 51dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman#endif 52bb466331e7e50d03497ce40ee344870236fd9c32Dan Gohman MachineFunction &MF; 53d57dd5f4e6740520820bc0fca42a540e31c27a73Dan Gohman MachineModuleInfo *MMI; 5483489bb7700c69b7a4a8da59365c42d3f5c8129bDevang Patel DwarfWriter *DW; 55bb466331e7e50d03497ce40ee344870236fd9c32Dan Gohman MachineRegisterInfo &MRI; 560586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman MachineFrameInfo &MFI; 570586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman MachineConstantPool &MCP; 589bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling DebugLoc DL; 5922bb31103de3337f0bb74c7bee16d1817d4dca14Dan Gohman const TargetMachine &TM; 6083785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng const TargetData &TD; 61bb466331e7e50d03497ce40ee344870236fd9c32Dan Gohman const TargetInstrInfo &TII; 6222bb31103de3337f0bb74c7bee16d1817d4dca14Dan Gohman const TargetLowering &TLI; 63b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 64b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohmanpublic: 659bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling /// startNewBlock - Set the current block to which generated machine 669bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling /// instructions will be appended, and clear the local CSE map. 67241f464d24a6c22721607841069bbeb17b3f71e6Dan Gohman /// 68241f464d24a6c22721607841069bbeb17b3f71e6Dan Gohman void startNewBlock(MachineBasicBlock *mbb) { 69241f464d24a6c22721607841069bbeb17b3f71e6Dan Gohman setCurrentBlock(mbb); 70241f464d24a6c22721607841069bbeb17b3f71e6Dan Gohman LocalValueMap.clear(); 71241f464d24a6c22721607841069bbeb17b3f71e6Dan Gohman } 72241f464d24a6c22721607841069bbeb17b3f71e6Dan Gohman 739bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling /// setCurrentBlock - Set the current block to which generated machine 749bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling /// instructions will be appended. 753df24e667f04a7003342b534310919abc9c87418Dan Gohman /// 763df24e667f04a7003342b534310919abc9c87418Dan Gohman void setCurrentBlock(MachineBasicBlock *mbb) { 773df24e667f04a7003342b534310919abc9c87418Dan Gohman MBB = mbb; 783df24e667f04a7003342b534310919abc9c87418Dan Gohman } 793df24e667f04a7003342b534310919abc9c87418Dan Gohman 809bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling /// setCurDebugLoc - Set the current debug location information, which is used 819bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling /// when creating a machine instruction. 829bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling /// 839bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling void setCurDebugLoc(DebugLoc dl) { DL = dl; } 849bc96a57206cbebaa9b0ba9979f949eb10c1592cBill Wendling 85390f3ace34855a3d4c9e0adf468976375f8c6dc1Devang Patel /// getCurDebugLoc() - Return current debug location information. 86390f3ace34855a3d4c9e0adf468976375f8c6dc1Devang Patel DebugLoc getCurDebugLoc() const { return DL; } 87390f3ace34855a3d4c9e0adf468976375f8c6dc1Devang Patel 883df24e667f04a7003342b534310919abc9c87418Dan Gohman /// SelectInstruction - Do "fast" instruction selection for the given 893df24e667f04a7003342b534310919abc9c87418Dan Gohman /// LLVM IR instruction, and append generated machine instructions to 903df24e667f04a7003342b534310919abc9c87418Dan Gohman /// the current block. Return true if selection was successful. 913df24e667f04a7003342b534310919abc9c87418Dan Gohman /// 923df24e667f04a7003342b534310919abc9c87418Dan Gohman bool SelectInstruction(Instruction *I); 93b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 9440b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman /// SelectInstruction - Do "fast" instruction selection for the given 9540b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman /// LLVM IR operator (Instruction or ConstantExpr), and append 9640b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman /// generated machine instructions to the current block. Return true 9740b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman /// if selection was successful. 9840b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman /// 9940b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman bool SelectOperator(User *I, unsigned Opcode); 10040b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman 10199b218218c0ca3ebfdd568ddfeafa07842e9d69dDan Gohman /// TargetSelectInstruction - This method is called by target-independent 10299b218218c0ca3ebfdd568ddfeafa07842e9d69dDan Gohman /// code when the normal FastISel process fails to select an instruction. 10399b218218c0ca3ebfdd568ddfeafa07842e9d69dDan Gohman /// This gives targets a chance to emit code for anything that doesn't 10499b218218c0ca3ebfdd568ddfeafa07842e9d69dDan Gohman /// fit into FastISel's framework. It returns true if it was successful. 10599b218218c0ca3ebfdd568ddfeafa07842e9d69dDan Gohman /// 10699b218218c0ca3ebfdd568ddfeafa07842e9d69dDan Gohman virtual bool 1073df24e667f04a7003342b534310919abc9c87418Dan Gohman TargetSelectInstruction(Instruction *I) = 0; 1083df24e667f04a7003342b534310919abc9c87418Dan Gohman 1093df24e667f04a7003342b534310919abc9c87418Dan Gohman /// getRegForValue - Create a virtual register and arrange for it to 1103df24e667f04a7003342b534310919abc9c87418Dan Gohman /// be assigned the value for the given LLVM value. 1113df24e667f04a7003342b534310919abc9c87418Dan Gohman unsigned getRegForValue(Value *V); 11299b218218c0ca3ebfdd568ddfeafa07842e9d69dDan Gohman 11359fbc80f6b3b5c71dfb84149f589625f7ed510e3Evan Cheng /// lookUpRegForValue - Look up the value to see if its value is already 11459fbc80f6b3b5c71dfb84149f589625f7ed510e3Evan Cheng /// cached in a register. It may be defined by instructions across blocks or 11559fbc80f6b3b5c71dfb84149f589625f7ed510e3Evan Cheng /// defined locally. 11659fbc80f6b3b5c71dfb84149f589625f7ed510e3Evan Cheng unsigned lookUpRegForValue(Value *V); 11759fbc80f6b3b5c71dfb84149f589625f7ed510e3Evan Cheng 118c8a1a3c426209e9c7b35e279e1578a89edc40af6Dan Gohman /// getRegForGEPIndex - This is a wrapper around getRegForValue that also 119c8a1a3c426209e9c7b35e279e1578a89edc40af6Dan Gohman /// takes care of truncating or sign-extending the given getelementptr 120c8a1a3c426209e9c7b35e279e1578a89edc40af6Dan Gohman /// index value. 121c8a1a3c426209e9c7b35e279e1578a89edc40af6Dan Gohman unsigned getRegForGEPIndex(Value *V); 122c8a1a3c426209e9c7b35e279e1578a89edc40af6Dan Gohman 123cc8430f742b0f1e567292c8a776e94fc1c930b2aDan Gohman virtual ~FastISel(); 124cc8430f742b0f1e567292c8a776e94fc1c930b2aDan Gohman 125b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohmanprotected: 1263df24e667f04a7003342b534310919abc9c87418Dan Gohman FastISel(MachineFunction &mf, 127d57dd5f4e6740520820bc0fca42a540e31c27a73Dan Gohman MachineModuleInfo *mmi, 12883489bb7700c69b7a4a8da59365c42d3f5c8129bDevang Patel DwarfWriter *dw, 1293df24e667f04a7003342b534310919abc9c87418Dan Gohman DenseMap<const Value *, unsigned> &vm, 1300586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman DenseMap<const BasicBlock *, MachineBasicBlock *> &bm, 131dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman DenseMap<const AllocaInst *, int> &am 132dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman#ifndef NDEBUG 133dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman , SmallSet<Instruction*, 8> &cil 134dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman#endif 135dd5b58ad7be78be90390074f0df138778af5c895Dan Gohman ); 136e285a74f7cf9dd3ccf4fe758576cf83301f8a43eDan Gohman 137bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// FastEmit_r - This method is called by target-independent code 138bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// to request that an instruction with the given type and opcode 139bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// be emitted. 140825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson virtual unsigned FastEmit_(MVT VT, 141825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT RetVT, 142b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman ISD::NodeType Opcode); 143bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman 144bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// FastEmit_r - This method is called by target-independent code 145bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// to request that an instruction with the given type, opcode, and 146bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// register operand be emitted. 147bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// 148825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson virtual unsigned FastEmit_r(MVT VT, 149825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT RetVT, 150b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman ISD::NodeType Opcode, unsigned Op0); 151bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman 152bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// FastEmit_rr - This method is called by target-independent code 153bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// to request that an instruction with the given type, opcode, and 154bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// register operands be emitted. 155bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// 156825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson virtual unsigned FastEmit_rr(MVT VT, 157825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT RetVT, 158b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman ISD::NodeType Opcode, 159b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman unsigned Op0, unsigned Op1); 160b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 16183785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng /// FastEmit_ri - This method is called by target-independent code 16283785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng /// to request that an instruction with the given type, opcode, and 16383785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng /// register and immediate operands be emitted. 16483785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng /// 165825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson virtual unsigned FastEmit_ri(MVT VT, 166825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT RetVT, 16783785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng ISD::NodeType Opcode, 168d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman unsigned Op0, uint64_t Imm); 169d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman 17010df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// FastEmit_rf - This method is called by target-independent code 17110df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// to request that an instruction with the given type, opcode, and 17210df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// register and floating-point immediate operands be emitted. 17310df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// 174825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson virtual unsigned FastEmit_rf(MVT VT, 175825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT RetVT, 17610df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman ISD::NodeType Opcode, 17710df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman unsigned Op0, ConstantFP *FPImm); 17810df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman 179d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// FastEmit_rri - This method is called by target-independent code 180d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// to request that an instruction with the given type, opcode, and 181d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// register and immediate operands be emitted. 182d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// 183825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson virtual unsigned FastEmit_rri(MVT VT, 184825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT RetVT, 185d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman ISD::NodeType Opcode, 186d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman unsigned Op0, unsigned Op1, uint64_t Imm); 18783785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng 18883785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng /// FastEmit_ri_ - This method is a wrapper of FastEmit_ri. It first tries 18983785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng /// to emit an instruction with an immediate operand using FastEmit_ri. 19083785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng /// If that fails, it materializes the immediate into a register and try 19183785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng /// FastEmit_rr instead. 192825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson unsigned FastEmit_ri_(MVT VT, 19383785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng ISD::NodeType Opcode, 19483785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng unsigned Op0, uint64_t Imm, 195825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT ImmType); 1966d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson 19710df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// FastEmit_rf_ - This method is a wrapper of FastEmit_rf. It first tries 19810df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// to emit an instruction with an immediate operand using FastEmit_rf. 19910df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// If that fails, it materializes the immediate into a register and try 20010df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// FastEmit_rr instead. 201825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson unsigned FastEmit_rf_(MVT VT, 20210df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman ISD::NodeType Opcode, 20310df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman unsigned Op0, ConstantFP *FPImm, 204825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT ImmType); 20510df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman 2066d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson /// FastEmit_i - This method is called by target-independent code 2076d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson /// to request that an instruction with the given type, opcode, and 2086d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson /// immediate operand be emitted. 209825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson virtual unsigned FastEmit_i(MVT VT, 210825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT RetVT, 2116d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson ISD::NodeType Opcode, 2126d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson uint64_t Imm); 21383785c80968165b30fcdd111ceb2c28d38bcff86Evan Cheng 21410df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// FastEmit_f - This method is called by target-independent code 21510df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// to request that an instruction with the given type, opcode, and 21610df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// floating-point immediate operand be emitted. 217825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson virtual unsigned FastEmit_f(MVT VT, 218825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT RetVT, 21910df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman ISD::NodeType Opcode, 22010df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman ConstantFP *FPImm); 22110df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman 222bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// FastEmitInst_ - Emit a MachineInstr with no operands and a 223bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// result register in the given register class. 224bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// 225b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman unsigned FastEmitInst_(unsigned MachineInstOpcode, 226b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman const TargetRegisterClass *RC); 227bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman 228d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// FastEmitInst_r - Emit a MachineInstr with one register operand 229bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// and a result register in the given register class. 230bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// 231b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman unsigned FastEmitInst_r(unsigned MachineInstOpcode, 232b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman const TargetRegisterClass *RC, 233b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman unsigned Op0); 234bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman 235d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// FastEmitInst_rr - Emit a MachineInstr with two register operands 236bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// and a result register in the given register class. 237bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman /// 238b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman unsigned FastEmitInst_rr(unsigned MachineInstOpcode, 239b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman const TargetRegisterClass *RC, 240b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman unsigned Op0, unsigned Op1); 241bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman 242d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// FastEmitInst_ri - Emit a MachineInstr with two register operands 243d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// and a result register in the given register class. 244d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// 245d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman unsigned FastEmitInst_ri(unsigned MachineInstOpcode, 246d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman const TargetRegisterClass *RC, 247d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman unsigned Op0, uint64_t Imm); 248d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman 24910df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// FastEmitInst_rf - Emit a MachineInstr with two register operands 25010df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// and a result register in the given register class. 25110df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman /// 25210df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman unsigned FastEmitInst_rf(unsigned MachineInstOpcode, 25310df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman const TargetRegisterClass *RC, 25410df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman unsigned Op0, ConstantFP *FPImm); 25510df0fa73e396bbc93a8940e8b53827390c54d10Dan Gohman 256d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// FastEmitInst_rri - Emit a MachineInstr with two register operands, 257d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// an immediate, and a result register in the given register class. 258d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman /// 259d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman unsigned FastEmitInst_rri(unsigned MachineInstOpcode, 260d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman const TargetRegisterClass *RC, 261d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman unsigned Op0, unsigned Op1, uint64_t Imm); 2626d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson 2636d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson /// FastEmitInst_i - Emit a MachineInstr with a single immediate 2646d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson /// operand, and a result register in the given register class. 2656d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson unsigned FastEmitInst_i(unsigned MachineInstrOpcode, 2666d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson const TargetRegisterClass *RC, 2676d0c25ec3a7ca822e68f73a4481eee43eb5c9485Owen Anderson uint64_t Imm); 268d5fe57d2f980c6bd1a61450f99c254a76d0f1683Dan Gohman 2698970f00deff00ffce1f35cf00883357e1582daa1Owen Anderson /// FastEmitInst_extractsubreg - Emit a MachineInstr for an extract_subreg 270536ab130ec95cbb7bf30530251dafa7dfecc8471Evan Cheng /// from a specified index of a superregister to a specified type. 271825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson unsigned FastEmitInst_extractsubreg(MVT RetVT, 272536ab130ec95cbb7bf30530251dafa7dfecc8471Evan Cheng unsigned Op0, uint32_t Idx); 2738970f00deff00ffce1f35cf00883357e1582daa1Owen Anderson 27414ea1ec2324cb595f2e035bbf54ddcd483f17c11Dan Gohman /// FastEmitZExtFromI1 - Emit MachineInstrs to compute the value of Op 27514ea1ec2324cb595f2e035bbf54ddcd483f17c11Dan Gohman /// with all but the least significant bit set to zero. 276825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson unsigned FastEmitZExtFromI1(MVT VT, 27714ea1ec2324cb595f2e035bbf54ddcd483f17c11Dan Gohman unsigned Op); 27814ea1ec2324cb595f2e035bbf54ddcd483f17c11Dan Gohman 279d98d6203e429b2d7208b6687931e9079e85e95ecDan Gohman /// FastEmitBranch - Emit an unconditional branch to the given block, 280d98d6203e429b2d7208b6687931e9079e85e95ecDan Gohman /// unless it is the immediate (fall-through) successor, and update 281d98d6203e429b2d7208b6687931e9079e85e95ecDan Gohman /// the CFG. 282d98d6203e429b2d7208b6687931e9079e85e95ecDan Gohman void FastEmitBranch(MachineBasicBlock *MBB); 283d98d6203e429b2d7208b6687931e9079e85e95ecDan Gohman 284c5040ab6065d5c569a1af0848b6e672b22b174b7Chris Lattner unsigned UpdateValueMap(Value* I, unsigned Reg); 285ea09f4f4691a0db65772b54fe8163a48c9dce01dEvan Cheng 286c7f72de3b4ef21828ea4780f0693bf0acd04e1c5Dan Gohman unsigned createResultReg(const TargetRegisterClass *RC); 28795267a1e671efc3c14e916b6978bbb15973b4cdcOwen Anderson 2889c7216f984111eb8f1716741bc9039ed86ec4a9bOwen Anderson /// TargetMaterializeConstant - Emit a constant in a register using 2899c7216f984111eb8f1716741bc9039ed86ec4a9bOwen Anderson /// target-specific logic, such as constant pool loads. 2900586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman virtual unsigned TargetMaterializeConstant(Constant* C) { 2910586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman return 0; 2920586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman } 2930586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman 2940586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman /// TargetMaterializeAlloca - Emit an alloca address in a register using 2950586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman /// target-specific logic. 2960586d91bb3e516d5826826522d9a90ed6ef74d86Dan Gohman virtual unsigned TargetMaterializeAlloca(AllocaInst* C) { 29795267a1e671efc3c14e916b6978bbb15973b4cdcOwen Anderson return 0; 29895267a1e671efc3c14e916b6978bbb15973b4cdcOwen Anderson } 299c7f72de3b4ef21828ea4780f0693bf0acd04e1c5Dan Gohman 300ea09f4f4691a0db65772b54fe8163a48c9dce01dEvan Chengprivate: 30140b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman bool SelectBinaryOp(User *I, ISD::NodeType ISDOpcode); 302bdedd4477331b3b0d28d74658baf05f675f2d195Dan Gohman 3033d45a853db014fdddcdb79424e663dfed5eccbc7Dan Gohman bool SelectFNeg(User *I); 3043d45a853db014fdddcdb79424e663dfed5eccbc7Dan Gohman 30540b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman bool SelectGetElementPtr(User *I); 306763d89343be210eb62a13318ca0cc9321ce46bfbDan Gohman 30733134c4a75558288d663267c8991f6bd37a530afDan Gohman bool SelectCall(User *I); 30833134c4a75558288d663267c8991f6bd37a530afDan Gohman 30940b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman bool SelectBitCast(User *I); 310d0533c9998d3baf41848ba559a9b2f2c65296d14Owen Anderson 31140b189e4e257924d90aaf63bf2e12bc7bbca961aDan Gohman bool SelectCast(User *I, ISD::NodeType Opcode); 312b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman}; 313b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 314b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman} 315b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman 316b0cf29c5cfff797284b3660dc233e135feb65d9aDan Gohman#endif 317