ARMSubtarget.h revision bee78fe5fcd8464f58bc729dede1a87d763ac3ae
131d157ae1ac2cd9c787dc3c1d28e64c682803844Jia Liu//===-- ARMSubtarget.h - Define Subtarget for the ARM ----------*- C++ -*--===// 2a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 3a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// The LLVM Compiler Infrastructure 4a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 8a8e2989ece6dc46df59b0768184028257f913843Evan Cheng//===----------------------------------------------------------------------===// 9a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 105b1b4489cf3a0f56f8be0673fc5cc380a32d277bEvan Cheng// This file declares the ARM specific subclass of TargetSubtargetInfo. 11a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 12a8e2989ece6dc46df59b0768184028257f913843Evan Cheng//===----------------------------------------------------------------------===// 13a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 14a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#ifndef ARMSUBTARGET_H 15a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#define ARMSUBTARGET_H 16a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 1794ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng#include "MCTargetDesc/ARMMCTargetDesc.h" 185b1b4489cf3a0f56f8be0673fc5cc380a32d277bEvan Cheng#include "llvm/Target/TargetSubtargetInfo.h" 19ab8be96fd30ca9396e6b84fdddf1ac6208984cadEvan Cheng#include "llvm/MC/MCInstrItineraries.h" 20b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "llvm/ADT/Triple.h" 21a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include <string> 22a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 2394214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng#define GET_SUBTARGETINFO_HEADER 24385e930d55f3ecd3c9538823dfa5896a12461845Evan Cheng#include "ARMGenSubtargetInfo.inc" 2594214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng 26a8e2989ece6dc46df59b0768184028257f913843Evan Chengnamespace llvm { 27e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Chengclass GlobalValue; 280ddff1b5359433faf2eb1c4ff5320ddcbd42f52fEvan Chengclass StringRef; 29a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 3094214703d97d8d9dfca88174ffc7e94820a85e62Evan Chengclass ARMSubtarget : public ARMGenSubtargetInfo { 31a8e2989ece6dc46df59b0768184028257f913843Evan Chengprotected: 323ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng enum ARMProcFamilyEnum { 333ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng Others, CortexA8, CortexA9 343ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng }; 353ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 363ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng /// ARMProcFamily - ARM processor family: Cortex-A8, Cortex-A9, and others. 373ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng ARMProcFamilyEnum ARMProcFamily; 383ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 3939dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng /// HasV4TOps, HasV5TOps, HasV5TEOps, HasV6Ops, HasV6T2Ops, HasV7Ops - 4039dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng /// Specify whether target support specific ARM ISA variants. 4139dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV4TOps; 4239dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV5TOps; 4339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV5TEOps; 4439dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV6Ops; 4539dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV6T2Ops; 4639dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV7Ops; 4739dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng 48bee78fe5fcd8464f58bc729dede1a87d763ac3aeEvan Cheng /// HasVFPv2, HasVFPv3, HasVFPv4, HasNEON - Specify what 494b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov /// floating point ISAs are supported. 5039dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasVFPv2; 5139dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasVFPv3; 524b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov bool HasVFPv4; 5339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasNEON; 54a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 551f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// UseNEONForSinglePrecisionFP - if the NEONFP attribute has been 561f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// specified. Use the method useNEONForSinglePrecisionFP() to 571f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// determine if NEON should actually be used. 5842a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin bool UseNEONForSinglePrecisionFP; 5942a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin 6048575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng /// SlowFPVMLx - If the VFP2 / NEON instructions are available, indicates 6148575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng /// whether the FP VML[AS] instructions are slow (if so, don't use them). 6248575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng bool SlowFPVMLx; 632676737e5ed3e4b5c89b4d06b60d998e9318eb73Jim Grosbach 64463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng /// HasVMLxForwarding - If true, NEON has special multiplier accumulator 65463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng /// forwarding to allow mul + mla being issued back to back. 66463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng bool HasVMLxForwarding; 67463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng 687a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng /// SlowFPBrcc - True if floating point compare + branch is slow. 697a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng bool SlowFPBrcc; 707a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng 714761a8d6549125e21d84371a9783bd41de2f55faEvan Cheng /// InThumbMode - True if compiling for Thumb, false for ARM. 72963b03c1a9f6a9742671459f103ee9a566c6de58Evan Cheng bool InThumbMode; 7370459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov 7494ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng /// HasThumb2 - True if Thumb2 instructions are supported. 7594ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng bool HasThumb2; 76a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 77acad68da50581de905a994ed3c6b9c197bcea687James Molloy /// IsMClass - True if the subtarget belongs to the 'M' profile of CPUs - 78acad68da50581de905a994ed3c6b9c197bcea687James Molloy /// v6m, v7m for example. 79acad68da50581de905a994ed3c6b9c197bcea687James Molloy bool IsMClass; 80acad68da50581de905a994ed3c6b9c197bcea687James Molloy 817b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng /// NoARM - True if subtarget does not support ARM mode execution. 827b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng bool NoARM; 837b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng 840dad89fa94536284d51f60868326294b725a0c61David Goodwin /// PostRAScheduler - True if using post-register-allocation scheduler. 850dad89fa94536284d51f60868326294b725a0c61David Goodwin bool PostRAScheduler; 860dad89fa94536284d51f60868326294b725a0c61David Goodwin 87a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// IsR9Reserved - True if R9 is a not available as general purpose register. 88a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool IsR9Reserved; 893630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 905cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov /// UseMovt - True if MOVT / MOVW pairs are used for materialization of 32-bit 915cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov /// imms (including global addresses). 925cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov bool UseMovt; 935cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 946d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson /// SupportsTailCall - True if the OS supports tail call. The dynamic linker 956d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson /// must be able to synthesize call stubs for interworking between ARM and 966d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson /// Thumb. 976d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson bool SupportsTailCall; 986d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson 99631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov /// HasFP16 - True if subtarget supports half-precision FP (We support VFP+HF 100631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov /// only so far) 101631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov bool HasFP16; 102631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov 10377f42b52781b6923924a93b8ab338d183887a592Bob Wilson /// HasD16 - True if subtarget is limited to 16 double precision 10477f42b52781b6923924a93b8ab338d183887a592Bob Wilson /// FP registers for VFPv3. 10577f42b52781b6923924a93b8ab338d183887a592Bob Wilson bool HasD16; 10677f42b52781b6923924a93b8ab338d183887a592Bob Wilson 10729402132f3e890a2771818f44987ede213297431Jim Grosbach /// HasHardwareDivide - True if subtarget supports [su]div 10829402132f3e890a2771818f44987ede213297431Jim Grosbach bool HasHardwareDivide; 10929402132f3e890a2771818f44987ede213297431Jim Grosbach 11029402132f3e890a2771818f44987ede213297431Jim Grosbach /// HasT2ExtractPack - True if subtarget supports thumb2 extract/pack 11129402132f3e890a2771818f44987ede213297431Jim Grosbach /// instructions. 11229402132f3e890a2771818f44987ede213297431Jim Grosbach bool HasT2ExtractPack; 11329402132f3e890a2771818f44987ede213297431Jim Grosbach 11411db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng /// HasDataBarrier - True if the subtarget supports DMB / DSB data barrier 11511db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng /// instructions. 11611db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng bool HasDataBarrier; 11711db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng 118e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng /// Pref32BitThumb - If true, codegen would prefer 32-bit Thumb instructions 119e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng /// over 16-bit ones. 120e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng bool Pref32BitThumb; 121e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng 1225dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// AvoidCPSRPartialUpdate - If true, codegen would avoid using instructions 1235dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// that partially update CPSR and add false dependency on the previous 1245dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// CPSR setting instruction. 1255dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson bool AvoidCPSRPartialUpdate; 1265dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson 1274bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng /// HasRAS - Some processors perform return stack prediction. CodeGen should 1284bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng /// avoid issue "normal" call instructions to callees which do not return. 1294bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng bool HasRAS; 1304bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng 131dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng /// HasMPExtension - True if the subtarget supports Multiprocessing 132dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng /// extension (ARMv7 only). 133dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng bool HasMPExtension; 134dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng 135fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach /// FPOnlySP - If true, the floating point unit only supports single 136fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach /// precision. 137fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach bool FPOnlySP; 138fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach 13902aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// AllowsUnalignedMem - If true, the subtarget allows unaligned memory 14002aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// accesses for some types. For details, see 14102aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// ARMTargetLowering::allowsUnalignedMemoryAccesses(). 14202aba73a9ec04d0de9424422249af3948ca9573aBob Wilson bool AllowsUnalignedMem; 14302aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 144a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach /// Thumb2DSP - If true, the subtarget supports the v7 DSP (saturating arith 145a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach /// and such) instructions in Thumb2 code. 146a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach bool Thumb2DSP; 147a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach 148a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// stackAlignment - The minimum alignment known to hold of the stack frame on 149a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// entry to the function and which must be maintained by every function. 150a8e2989ece6dc46df59b0768184028257f913843Evan Cheng unsigned stackAlignment; 151a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 15241a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov /// CPUString - String name of used CPU. 15341a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov std::string CPUString; 15441a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov 155b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng /// TargetTriple - What processor and OS we're targeting. 156b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng Triple TargetTriple; 157b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng 1588557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng /// Selected instruction itineraries (one entry per itinerary class.) 1598557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng InstrItineraryData InstrItins; 160764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach 161a8e2989ece6dc46df59b0768184028257f913843Evan Cheng public: 1621a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng enum { 1631a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng isELF, isDarwin 1641a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng } TargetType; 1651a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng 1663630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio enum { 1673630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio ARM_ABI_APCS, 1683630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio ARM_ABI_AAPCS // ARM EABI 1693630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio } TargetABI; 1703630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 171a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// This constructor initializes the data members to match that 1723be03406c9c3b2075d5ae416499af2f15f703d6fDaniel Dunbar /// of the specified triple. 173a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// 174276365dd4bc0c2160f91fd8062ae1fc90c86c324Evan Cheng ARMSubtarget(const std::string &TT, const std::string &CPU, 17594ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng const std::string &FS); 176a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 177707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman /// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size 178707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman /// that still makes it profitable to inline the call. 179e0703c84ddeb1a1276de4e38210c1127ef5df130Rafael Espindola unsigned getMaxInlineSizeThreshold() const { 1804d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson // FIXME: For now, we don't lower memcpy's to loads / stores for Thumb1. 1814d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson // Change this once Thumb1 ldmia / stmia support is added. 1824d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson return isThumb1Only() ? 0 : 64; 183e0703c84ddeb1a1276de4e38210c1127ef5df130Rafael Espindola } 1846d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov /// ParseSubtargetFeatures - Parses features string setting specified 185a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// subtarget options. Definition of function is auto generated by tblgen. 1860ddff1b5359433faf2eb1c4ff5320ddcbd42f52fEvan Cheng void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 187a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 1882da8bc8a5f7705ac131184cd247f48500da0d74eAndrew Trick void computeIssueWidth(); 1892da8bc8a5f7705ac131184cd247f48500da0d74eAndrew Trick 19039dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV4TOps() const { return HasV4TOps; } 19139dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV5TOps() const { return HasV5TOps; } 19239dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV5TEOps() const { return HasV5TEOps; } 19339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV6Ops() const { return HasV6Ops; } 19439dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV6T2Ops() const { return HasV6T2Ops; } 19539dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV7Ops() const { return HasV7Ops; } 196a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 1973ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng bool isCortexA8() const { return ARMProcFamily == CortexA8; } 1983ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng bool isCortexA9() const { return ARMProcFamily == CortexA9; } 19944ee4714a8c245d4fdfd03840efcf58c3f66c6bcEvan Cheng bool isCortexM3() const { return CPUString == "cortex-m3"; } 2003ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 2017b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng bool hasARMOps() const { return !NoARM; } 2027b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng 20339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasVFP2() const { return HasVFPv2; } 20439dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasVFP3() const { return HasVFPv3; } 2054b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov bool hasVFP4() const { return HasVFPv4; } 20639dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasNEON() const { return HasNEON; } 207764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach bool useNEONForSinglePrecisionFP() const { 20842a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin return hasNEON() && UseNEONForSinglePrecisionFP; } 20939dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng 210eae216c6d3d29cb9024ddf436a8f2ce222bb9ec8Shantonu Sen bool hasDivide() const { return HasHardwareDivide; } 211eae216c6d3d29cb9024ddf436a8f2ce222bb9ec8Shantonu Sen bool hasT2ExtractPack() const { return HasT2ExtractPack; } 21211db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng bool hasDataBarrier() const { return HasDataBarrier; } 21348575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng bool useFPVMLx() const { return !SlowFPVMLx; } 214463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng bool hasVMLxForwarding() const { return HasVMLxForwarding; } 2157a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng bool isFPBrccSlow() const { return SlowFPBrcc; } 216fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach bool isFPOnlySP() const { return FPOnlySP; } 217e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng bool prefers32BitThumb() const { return Pref32BitThumb; } 2185dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson bool avoidCPSRPartialUpdate() const { return AvoidCPSRPartialUpdate; } 2194bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng bool hasRAS() const { return HasRAS; } 220dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng bool hasMPExtension() const { return HasMPExtension; } 221a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach bool hasThumb2DSP() const { return Thumb2DSP; } 222764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach 223631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov bool hasFP16() const { return HasFP16; } 22477f42b52781b6923924a93b8ab338d183887a592Bob Wilson bool hasD16() const { return HasD16; } 225631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov 226c8578948c9b35080dedd6527abf4f48fc4de43d3Evan Cheng const Triple &getTargetTriple() const { return TargetTriple; } 227c8578948c9b35080dedd6527abf4f48fc4de43d3Evan Cheng 228afff941211526a31f931aa9fcac84ae42ff60ef0Evan Cheng bool isTargetIOS() const { return TargetTriple.getOS() == Triple::IOS; } 229912225e18559a73228099330a4c253fdccf9fa3dDaniel Dunbar bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); } 2301fac6b50ea720d75fc2bf01a288e99f239869e90Nick Lewycky bool isTargetNaCl() const { 2311fac6b50ea720d75fc2bf01a288e99f239869e90Nick Lewycky return TargetTriple.getOS() == Triple::NativeClient; 2321fac6b50ea720d75fc2bf01a288e99f239869e90Nick Lewycky } 233b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng bool isTargetELF() const { return !isTargetDarwin(); } 2341a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng 2353630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio bool isAPCS_ABI() const { return TargetABI == ARM_ABI_APCS; } 2363630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio bool isAAPCS_ABI() const { return TargetABI == ARM_ABI_AAPCS; } 2373630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 238963b03c1a9f6a9742671459f103ee9a566c6de58Evan Cheng bool isThumb() const { return InThumbMode; } 239963b03c1a9f6a9742671459f103ee9a566c6de58Evan Cheng bool isThumb1Only() const { return InThumbMode && !HasThumb2; } 240963b03c1a9f6a9742671459f103ee9a566c6de58Evan Cheng bool isThumb2() const { return InThumbMode && HasThumb2; } 24194ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng bool hasThumb2() const { return HasThumb2; } 242acad68da50581de905a994ed3c6b9c197bcea687James Molloy bool isMClass() const { return IsMClass; } 243acad68da50581de905a994ed3c6b9c197bcea687James Molloy bool isARClass() const { return !IsMClass; } 244a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 245a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool isR9Reserved() const { return IsR9Reserved; } 246a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 2475cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov bool useMovt() const { return UseMovt && hasV6T2Ops(); } 2486d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson bool supportsTailCall() const { return SupportsTailCall; } 2495cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 25002aba73a9ec04d0de9424422249af3948ca9573aBob Wilson bool allowsUnalignedMem() const { return AllowsUnalignedMem; } 25102aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 25241a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov const std::string & getCPUString() const { return CPUString; } 2535cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 254654d5440a477b1f6c89b051107e041a331f78e27Owen Anderson unsigned getMispredictionPenalty() const; 2556e8f4c404825b79f9b9176483653f1aa927dfbdeAndrew Trick 256c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwin /// enablePostRAScheduler - True at 'More' optimization. 2574c3715c2e5e17d7216a96ac2baf9720630f04408David Goodwin bool enablePostRAScheduler(CodeGenOpt::Level OptLevel, 2585b1b4489cf3a0f56f8be0673fc5cc380a32d277bEvan Cheng TargetSubtargetInfo::AntiDepBreakMode& Mode, 25987d21b92fc42f6b3bd8567a83fc5b5191c1205e5David Goodwin RegClassVector& CriticalPathRCs) const; 26041a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov 261764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach /// getInstrItins - Return the instruction itineraies based on subtarget 2628557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng /// selection. 2638557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng const InstrItineraryData &getInstrItineraryData() const { return InstrItins; } 2648557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng 265a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// getStackAlignment - Returns the minimum alignment known to hold of the 266a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// stack frame on entry to the function and which must be maintained by every 267a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// function for this subtarget. 268a8e2989ece6dc46df59b0768184028257f913843Evan Cheng unsigned getStackAlignment() const { return stackAlignment; } 269e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng 270e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng /// GVIsIndirectSymbol - true if the GV will be accessed via an indirect 271e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng /// symbol. 27246510a73e977273ec67747eb34cbdb43f815e451Dan Gohman bool GVIsIndirectSymbol(const GlobalValue *GV, Reloc::Model RelocM) const; 273a8e2989ece6dc46df59b0768184028257f913843Evan Cheng}; 274a8e2989ece6dc46df59b0768184028257f913843Evan Cheng} // End llvm namespace 275a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 276a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#endif // ARMSUBTARGET_H 277