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 17cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 18cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "ARMFrameLowering.h" 19cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "ARMISelLowering.h" 20cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "ARMInstrInfo.h" 21cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "ARMJITInfo.h" 22cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "ARMSelectionDAGInfo.h" 23cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "ARMSubtarget.h" 24cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "Thumb1FrameLowering.h" 25cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "Thumb1InstrInfo.h" 26cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "Thumb2InstrInfo.h" 27cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "ARMJITInfo.h" 2894ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng#include "MCTargetDesc/ARMMCTargetDesc.h" 29b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "llvm/ADT/Triple.h" 30cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines#include "llvm/IR/DataLayout.h" 31a1514e24cc24b050f53a12650e047799358833a1Chandler Carruth#include "llvm/MC/MCInstrItineraries.h" 32a1514e24cc24b050f53a12650e047799358833a1Chandler Carruth#include "llvm/Target/TargetSubtargetInfo.h" 33a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include <string> 34a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 3594214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng#define GET_SUBTARGETINFO_HEADER 36385e930d55f3ecd3c9538823dfa5896a12461845Evan Cheng#include "ARMGenSubtargetInfo.inc" 3794214703d97d8d9dfca88174ffc7e94820a85e62Evan Cheng 38a8e2989ece6dc46df59b0768184028257f913843Evan Chengnamespace llvm { 39e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Chengclass GlobalValue; 400ddff1b5359433faf2eb1c4ff5320ddcbd42f52fEvan Chengclass StringRef; 413382a840747c42c4a98eac802ee7b347a8ded1e4Renato Golinclass TargetOptions; 42a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 4394214703d97d8d9dfca88174ffc7e94820a85e62Evan Chengclass ARMSubtarget : public ARMGenSubtargetInfo { 44a8e2989ece6dc46df59b0768184028257f913843Evan Chengprotected: 453ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng enum ARMProcFamilyEnum { 46dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines Others, CortexA5, CortexA7, CortexA8, CortexA9, CortexA12, CortexA15, 4736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines CortexR5, Swift, CortexA53, CortexA57, Krait 483ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng }; 490f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson enum ARMProcClassEnum { 500f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson None, AClass, RClass, MClass 510f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson }; 523ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 533ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng /// ARMProcFamily - ARM processor family: Cortex-A8, Cortex-A9, and others. 543ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng ARMProcFamilyEnum ARMProcFamily; 553ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 560f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson /// ARMProcClass - ARM processor class: None, AClass, RClass or MClass. 570f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson ARMProcClassEnum ARMProcClass; 580f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson 59849eedce9921eb8f285cd0df0ad69ee5133459d1Joey Gouly /// HasV4TOps, HasV5TOps, HasV5TEOps, 60cf3e4cb29a5fd485f11354060bb7a99e8cfdaf09Tim Northover /// HasV6Ops, HasV6MOps, HasV6T2Ops, HasV7Ops, HasV8Ops - 6139dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng /// Specify whether target support specific ARM ISA variants. 6239dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV4TOps; 6339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV5TOps; 6439dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV5TEOps; 6539dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV6Ops; 66cf3e4cb29a5fd485f11354060bb7a99e8cfdaf09Tim Northover bool HasV6MOps; 6739dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV6T2Ops; 6839dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasV7Ops; 69849eedce9921eb8f285cd0df0ad69ee5133459d1Joey Gouly bool HasV8Ops; 7039dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng 712a9af9f18eac90b0de739b6ceddf6c2209086303Joey Gouly /// HasVFPv2, HasVFPv3, HasVFPv4, HasFPARMv8, HasNEON - Specify what 724b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov /// floating point ISAs are supported. 7339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasVFPv2; 7439dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasVFPv3; 754b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov bool HasVFPv4; 762a9af9f18eac90b0de739b6ceddf6c2209086303Joey Gouly bool HasFPARMv8; 7739dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool HasNEON; 78a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 791f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// UseNEONForSinglePrecisionFP - if the NEONFP attribute has been 801f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// specified. Use the method useNEONForSinglePrecisionFP() to 811f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// determine if NEON should actually be used. 8242a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin bool UseNEONForSinglePrecisionFP; 8342a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin 84eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson /// UseMulOps - True if non-microcoded fused integer multiply-add and 85eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson /// multiply-subtract instructions should be used. 86eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson bool UseMulOps; 87eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson 8848575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng /// SlowFPVMLx - If the VFP2 / NEON instructions are available, indicates 8948575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng /// whether the FP VML[AS] instructions are slow (if so, don't use them). 9048575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng bool SlowFPVMLx; 912676737e5ed3e4b5c89b4d06b60d998e9318eb73Jim Grosbach 92463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng /// HasVMLxForwarding - If true, NEON has special multiplier accumulator 93463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng /// forwarding to allow mul + mla being issued back to back. 94463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng bool HasVMLxForwarding; 95463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng 967a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng /// SlowFPBrcc - True if floating point compare + branch is slow. 977a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng bool SlowFPBrcc; 987a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng 994761a8d6549125e21d84371a9783bd41de2f55faEvan Cheng /// InThumbMode - True if compiling for Thumb, false for ARM. 100963b03c1a9f6a9742671459f103ee9a566c6de58Evan Cheng bool InThumbMode; 10170459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov 10294ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng /// HasThumb2 - True if Thumb2 instructions are supported. 10394ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng bool HasThumb2; 104a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 1057b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng /// NoARM - True if subtarget does not support ARM mode execution. 1067b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng bool NoARM; 1077b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng 1080dad89fa94536284d51f60868326294b725a0c61David Goodwin /// PostRAScheduler - True if using post-register-allocation scheduler. 1090dad89fa94536284d51f60868326294b725a0c61David Goodwin bool PostRAScheduler; 1100dad89fa94536284d51f60868326294b725a0c61David Goodwin 111a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// IsR9Reserved - True if R9 is a not available as general purpose register. 112a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool IsR9Reserved; 1133630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 1145cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov /// UseMovt - True if MOVT / MOVW pairs are used for materialization of 32-bit 1155cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov /// imms (including global addresses). 1165cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov bool UseMovt; 1175cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 1186d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson /// SupportsTailCall - True if the OS supports tail call. The dynamic linker 1196d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson /// must be able to synthesize call stubs for interworking between ARM and 1206d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson /// Thumb. 1216d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson bool SupportsTailCall; 1226d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson 123631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov /// HasFP16 - True if subtarget supports half-precision FP (We support VFP+HF 124631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov /// only so far) 125631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov bool HasFP16; 126631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov 12777f42b52781b6923924a93b8ab338d183887a592Bob Wilson /// HasD16 - True if subtarget is limited to 16 double precision 12877f42b52781b6923924a93b8ab338d183887a592Bob Wilson /// FP registers for VFPv3. 12977f42b52781b6923924a93b8ab338d183887a592Bob Wilson bool HasD16; 13077f42b52781b6923924a93b8ab338d183887a592Bob Wilson 13129402132f3e890a2771818f44987ede213297431Jim Grosbach /// HasHardwareDivide - True if subtarget supports [su]div 13229402132f3e890a2771818f44987ede213297431Jim Grosbach bool HasHardwareDivide; 13329402132f3e890a2771818f44987ede213297431Jim Grosbach 134eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson /// HasHardwareDivideInARM - True if subtarget supports [su]div in ARM mode 135eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson bool HasHardwareDivideInARM; 136eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson 13729402132f3e890a2771818f44987ede213297431Jim Grosbach /// HasT2ExtractPack - True if subtarget supports thumb2 extract/pack 13829402132f3e890a2771818f44987ede213297431Jim Grosbach /// instructions. 13929402132f3e890a2771818f44987ede213297431Jim Grosbach bool HasT2ExtractPack; 14029402132f3e890a2771818f44987ede213297431Jim Grosbach 14111db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng /// HasDataBarrier - True if the subtarget supports DMB / DSB data barrier 14211db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng /// instructions. 14311db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng bool HasDataBarrier; 14411db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng 145e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng /// Pref32BitThumb - If true, codegen would prefer 32-bit Thumb instructions 146e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng /// over 16-bit ones. 147e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng bool Pref32BitThumb; 148e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng 1495dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// AvoidCPSRPartialUpdate - If true, codegen would avoid using instructions 1505dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// that partially update CPSR and add false dependency on the previous 1515dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// CPSR setting instruction. 1525dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson bool AvoidCPSRPartialUpdate; 1535dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson 154139e407d526193017d42473c8d4892933de78f14Evan Cheng /// AvoidMOVsShifterOperand - If true, codegen should avoid using flag setting 155139e407d526193017d42473c8d4892933de78f14Evan Cheng /// movs with shifter operand (i.e. asr, lsl, lsr). 156139e407d526193017d42473c8d4892933de78f14Evan Cheng bool AvoidMOVsShifterOperand; 157139e407d526193017d42473c8d4892933de78f14Evan Cheng 1584bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng /// HasRAS - Some processors perform return stack prediction. CodeGen should 1594bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng /// avoid issue "normal" call instructions to callees which do not return. 1604bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng bool HasRAS; 1614bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng 162dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng /// HasMPExtension - True if the subtarget supports Multiprocessing 163dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng /// extension (ARMv7 only). 164dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng bool HasMPExtension; 165dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng 1666186de5c54b580414b2d162e0f335b62b3d9812cBradley Smith /// HasVirtualization - True if the subtarget supports the Virtualization 1676186de5c54b580414b2d162e0f335b62b3d9812cBradley Smith /// extension. 1686186de5c54b580414b2d162e0f335b62b3d9812cBradley Smith bool HasVirtualization; 1696186de5c54b580414b2d162e0f335b62b3d9812cBradley Smith 170fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach /// FPOnlySP - If true, the floating point unit only supports single 171fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach /// precision. 172fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach bool FPOnlySP; 173fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach 174b94a353242b26af5c0969926a6b84664e342b586Tim Northover /// If true, the processor supports the Performance Monitor Extensions. These 175b94a353242b26af5c0969926a6b84664e342b586Tim Northover /// include a generic cycle-counter as well as more fine-grained (often 176b94a353242b26af5c0969926a6b84664e342b586Tim Northover /// implementation-specific) events. 177b94a353242b26af5c0969926a6b84664e342b586Tim Northover bool HasPerfMon; 178b94a353242b26af5c0969926a6b84664e342b586Tim Northover 1798c9e52a9fc1f99cf80c499ef10e6c8a54ef899d4Tim Northover /// HasTrustZone - if true, processor supports TrustZone security extensions 1808c9e52a9fc1f99cf80c499ef10e6c8a54ef899d4Tim Northover bool HasTrustZone; 1818c9e52a9fc1f99cf80c499ef10e6c8a54ef899d4Tim Northover 1825df37dab763ce377095389c4ea1cff88db369954Amara Emerson /// HasCrypto - if true, processor supports Cryptography extensions 1835df37dab763ce377095389c4ea1cff88db369954Amara Emerson bool HasCrypto; 1845df37dab763ce377095389c4ea1cff88db369954Amara Emerson 18547c6d17b1cce85ba30471b2270419e35ba3d5653Bernard Ogden /// HasCRC - if true, processor supports CRC instructions 18647c6d17b1cce85ba30471b2270419e35ba3d5653Bernard Ogden bool HasCRC; 18747c6d17b1cce85ba30471b2270419e35ba3d5653Bernard Ogden 18836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines /// If true, the instructions "vmov.i32 d0, #0" and "vmov.i32 q0, #0" are 18936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines /// particularly effective at zeroing a VFP register. 19036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool HasZeroCycleZeroing; 19136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 19202aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// AllowsUnalignedMem - If true, the subtarget allows unaligned memory 19302aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// accesses for some types. For details, see 19402aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// ARMTargetLowering::allowsUnalignedMemoryAccesses(). 19502aba73a9ec04d0de9424422249af3948ca9573aBob Wilson bool AllowsUnalignedMem; 19602aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 197929bdb23794b615dc6b0cc59db21f0450c3ce33bWeiming Zhao /// RestrictIT - If true, the subtarget disallows generation of deprecated IT 198929bdb23794b615dc6b0cc59db21f0450c3ce33bWeiming Zhao /// blocks to conform to ARMv8 rule. 199929bdb23794b615dc6b0cc59db21f0450c3ce33bWeiming Zhao bool RestrictIT; 200929bdb23794b615dc6b0cc59db21f0450c3ce33bWeiming Zhao 201a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach /// Thumb2DSP - If true, the subtarget supports the v7 DSP (saturating arith 202a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach /// and such) instructions in Thumb2 code. 203a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach bool Thumb2DSP; 204a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach 2050f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky /// NaCl TRAP instruction is generated instead of the regular TRAP. 2060f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky bool UseNaClTrap; 2070f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky 208373aa5c665fe6df6b9c5586d397dc3617f25aab5Stephen Hines /// Force long to be a 64-bit type (RenderScript-specific) 209373aa5c665fe6df6b9c5586d397dc3617f25aab5Stephen Hines bool UseLong64; 210373aa5c665fe6df6b9c5586d397dc3617f25aab5Stephen Hines 21136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines /// Target machine allowed unsafe FP math (such as use of NEON fp) 21236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool UnsafeFPMath; 21336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 214a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// stackAlignment - The minimum alignment known to hold of the stack frame on 215a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// entry to the function and which must be maintained by every function. 216a8e2989ece6dc46df59b0768184028257f913843Evan Cheng unsigned stackAlignment; 217a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 21841a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov /// CPUString - String name of used CPU. 21941a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov std::string CPUString; 22041a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov 22136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines /// IsLittle - The target is Little Endian 22236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool IsLittle; 22336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 224b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng /// TargetTriple - What processor and OS we're targeting. 225b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng Triple TargetTriple; 226b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng 227d43b5c97cff06d7840b974ca84fa0639d2567968Andrew Trick /// SchedModel - Processor specific instruction costs. 228d43b5c97cff06d7840b974ca84fa0639d2567968Andrew Trick const MCSchedModel *SchedModel; 229d43b5c97cff06d7840b974ca84fa0639d2567968Andrew Trick 2308557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng /// Selected instruction itineraries (one entry per itinerary class.) 2318557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng InstrItineraryData InstrItins; 232764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach 2333382a840747c42c4a98eac802ee7b347a8ded1e4Renato Golin /// Options passed via command line that could influence the target 2343382a840747c42c4a98eac802ee7b347a8ded1e4Renato Golin const TargetOptions &Options; 2353382a840747c42c4a98eac802ee7b347a8ded1e4Renato Golin 236a8e2989ece6dc46df59b0768184028257f913843Evan Cheng public: 2371a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng enum { 23836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines ARM_ABI_UNKNOWN, 2393630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio ARM_ABI_APCS, 2403630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio ARM_ABI_AAPCS // ARM EABI 2413630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio } TargetABI; 2423630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 243a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// This constructor initializes the data members to match that 2443be03406c9c3b2075d5ae416499af2f15f703d6fDaniel Dunbar /// of the specified triple. 245a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// 246276365dd4bc0c2160f91fd8062ae1fc90c86c324Evan Cheng ARMSubtarget(const std::string &TT, const std::string &CPU, 247cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const std::string &FS, TargetMachine &TM, bool IsLittle, 24836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines const TargetOptions &Options); 249a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 250707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman /// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size 251707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman /// that still makes it profitable to inline the call. 252e0703c84ddeb1a1276de4e38210c1127ef5df130Rafael Espindola unsigned getMaxInlineSizeThreshold() const { 253dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines return 64; 254e0703c84ddeb1a1276de4e38210c1127ef5df130Rafael Espindola } 2556d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov /// ParseSubtargetFeatures - Parses features string setting specified 256a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// subtarget options. Definition of function is auto generated by tblgen. 2570ddff1b5359433faf2eb1c4ff5320ddcbd42f52fEvan Cheng void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 258a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 259b26f98fa1f098b527cc84ef7535fe84d89953c21Renato Golin /// \brief Reset the features for the ARM target. 26036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines void resetSubtargetFeatures(const MachineFunction *MF) override; 261cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 262cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines /// initializeSubtargetDependencies - Initializes using a CPU and feature string 263cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines /// so that we can use initializer lists for subtarget initialization. 264cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ARMSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS); 265cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 266cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const DataLayout *getDataLayout() const { return &DL; } 267cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const ARMSelectionDAGInfo *getSelectionDAGInfo() const { return &TSInfo; } 268cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ARMJITInfo *getJITInfo() { return &JITInfo; } 269cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const ARMBaseInstrInfo *getInstrInfo() const { return InstrInfo.get(); } 270cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const ARMTargetLowering *getTargetLowering() const { return &TLInfo; } 271cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const ARMFrameLowering *getFrameLowering() const { return FrameLowering.get(); } 272cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const ARMBaseRegisterInfo *getRegisterInfo() const { 273cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines return &InstrInfo->getRegisterInfo(); 274cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines } 275cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 276901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendlingprivate: 277cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines const DataLayout DL; 278cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ARMSelectionDAGInfo TSInfo; 279cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ARMJITInfo JITInfo; 280cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines // Either Thumb1InstrInfo or Thumb2InstrInfo. 281cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines std::unique_ptr<ARMBaseInstrInfo> InstrInfo; 282cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines ARMTargetLowering TLInfo; 283cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines // Either Thumb1FrameLowering or ARMFrameLowering. 284cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines std::unique_ptr<ARMFrameLowering> FrameLowering; 285cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 286901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendling void initializeEnvironment(); 2874788d14b484ba9e2fe19855fd6c97a3659980fcaBill Wendling void resetSubtargetFeatures(StringRef CPU, StringRef FS); 288901d80065c9afa0ba33e8546c2e1e99a00aceb14Bill Wendlingpublic: 2892da8bc8a5f7705ac131184cd247f48500da0d74eAndrew Trick void computeIssueWidth(); 2902da8bc8a5f7705ac131184cd247f48500da0d74eAndrew Trick 29139dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV4TOps() const { return HasV4TOps; } 29239dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV5TOps() const { return HasV5TOps; } 29339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV5TEOps() const { return HasV5TEOps; } 29439dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV6Ops() const { return HasV6Ops; } 295ca7b2d08d7b918e5e8e921a837623af962b27d00Amara Emerson bool hasV6MOps() const { return HasV6MOps; } 29639dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV6T2Ops() const { return HasV6T2Ops; } 29739dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasV7Ops() const { return HasV7Ops; } 298849eedce9921eb8f285cd0df0ad69ee5133459d1Joey Gouly bool hasV8Ops() const { return HasV8Ops; } 299a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 3008facb9ecf21fc97409121842882dbc1dfd87b944Quentin Colombet bool isCortexA5() const { return ARMProcFamily == CortexA5; } 30136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isCortexA7() const { return ARMProcFamily == CortexA7; } 3023ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng bool isCortexA8() const { return ARMProcFamily == CortexA8; } 3033ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng bool isCortexA9() const { return ARMProcFamily == CortexA9; } 304616471d4bfe4717fa86259ff4534703357b3b723Silviu Baranga bool isCortexA15() const { return ARMProcFamily == CortexA15; } 305eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson bool isSwift() const { return ARMProcFamily == Swift; } 30644ee4714a8c245d4fdfd03840efcf58c3f66c6bcEvan Cheng bool isCortexM3() const { return CPUString == "cortex-m3"; } 30736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isLikeA9() const { return isCortexA9() || isCortexA15() || isKrait(); } 308e0f1d712f656d3f958b616013f1d6008c5678949Quentin Colombet bool isCortexR5() const { return ARMProcFamily == CortexR5; } 30936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isKrait() const { return ARMProcFamily == Krait; } 3103ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 3117b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng bool hasARMOps() const { return !NoARM; } 3127b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng 31339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasVFP2() const { return HasVFPv2; } 31439dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasVFP3() const { return HasVFPv3; } 3154b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov bool hasVFP4() const { return HasVFPv4; } 3162a9af9f18eac90b0de739b6ceddf6c2209086303Joey Gouly bool hasFPARMv8() const { return HasFPARMv8; } 31739dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng bool hasNEON() const { return HasNEON; } 3185df37dab763ce377095389c4ea1cff88db369954Amara Emerson bool hasCrypto() const { return HasCrypto; } 31947c6d17b1cce85ba30471b2270419e35ba3d5653Bernard Ogden bool hasCRC() const { return HasCRC; } 3206186de5c54b580414b2d162e0f335b62b3d9812cBradley Smith bool hasVirtualization() const { return HasVirtualization; } 321764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach bool useNEONForSinglePrecisionFP() const { 32242a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin return hasNEON() && UseNEONForSinglePrecisionFP; } 32339dfb0ff848be6b380ca81ff95d4ca4e0ae09c76Evan Cheng 324eae216c6d3d29cb9024ddf436a8f2ce222bb9ec8Shantonu Sen bool hasDivide() const { return HasHardwareDivide; } 325eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson bool hasDivideInARMMode() const { return HasHardwareDivideInARM; } 326eae216c6d3d29cb9024ddf436a8f2ce222bb9ec8Shantonu Sen bool hasT2ExtractPack() const { return HasT2ExtractPack; } 32711db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng bool hasDataBarrier() const { return HasDataBarrier; } 328214c37d1816b62a25525282817f7088a1e2ed1dcTim Northover bool hasAnyDataBarrier() const { 329214c37d1816b62a25525282817f7088a1e2ed1dcTim Northover return HasDataBarrier || (hasV6Ops() && !isThumb()); 330214c37d1816b62a25525282817f7088a1e2ed1dcTim Northover } 331eb1641d54a7eda7717304bc4d55d059208d8ebedBob Wilson bool useMulOps() const { return UseMulOps; } 33248575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng bool useFPVMLx() const { return !SlowFPVMLx; } 333463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng bool hasVMLxForwarding() const { return HasVMLxForwarding; } 3347a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng bool isFPBrccSlow() const { return SlowFPBrcc; } 335fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach bool isFPOnlySP() const { return FPOnlySP; } 336b94a353242b26af5c0969926a6b84664e342b586Tim Northover bool hasPerfMon() const { return HasPerfMon; } 3378c9e52a9fc1f99cf80c499ef10e6c8a54ef899d4Tim Northover bool hasTrustZone() const { return HasTrustZone; } 33836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool hasZeroCycleZeroing() const { return HasZeroCycleZeroing; } 339e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng bool prefers32BitThumb() const { return Pref32BitThumb; } 3405dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson bool avoidCPSRPartialUpdate() const { return AvoidCPSRPartialUpdate; } 341139e407d526193017d42473c8d4892933de78f14Evan Cheng bool avoidMOVsShifterOperand() const { return AvoidMOVsShifterOperand; } 3424bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng bool hasRAS() const { return HasRAS; } 343dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng bool hasMPExtension() const { return HasMPExtension; } 344a7603982dbf9e240ecc7ed6eddcd1cdb868107acJim Grosbach bool hasThumb2DSP() const { return Thumb2DSP; } 3450f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky bool useNaClTrap() const { return UseNaClTrap; } 346764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach 347631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov bool hasFP16() const { return HasFP16; } 34877f42b52781b6923924a93b8ab338d183887a592Bob Wilson bool hasD16() const { return HasD16; } 349631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov 350c8578948c9b35080dedd6527abf4f48fc4de43d3Evan Cheng const Triple &getTargetTriple() const { return TargetTriple; } 351c8578948c9b35080dedd6527abf4f48fc4de43d3Evan Cheng 352912225e18559a73228099330a4c253fdccf9fa3dDaniel Dunbar bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); } 35336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetIOS() const { return TargetTriple.isiOS(); } 354441c557708b5dbe91f1799baf790ad418c23ea70Cameron Esfahani bool isTargetLinux() const { return TargetTriple.isOSLinux(); } 35536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetNaCl() const { return TargetTriple.isOSNaCl(); } 35636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetNetBSD() const { return TargetTriple.getOS() == Triple::NetBSD; } 35736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetWindows() const { return TargetTriple.isOSWindows(); } 35836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 35936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetCOFF() const { return TargetTriple.isOSBinFormatCOFF(); } 36036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); } 36136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetMachO() const { return TargetTriple.isOSBinFormatMachO(); } 36236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 363103ba845f09252d90a05109af7174f54bf412dafRenato Golin // ARM EABI is the bare-metal EABI described in ARM ABI documents and 364103ba845f09252d90a05109af7174f54bf412dafRenato Golin // can be accessed via -target arm-none-eabi. This is NOT GNUEABI. 365103ba845f09252d90a05109af7174f54bf412dafRenato Golin // FIXME: Add a flag for bare-metal for that target and set Triple::EABI 366103ba845f09252d90a05109af7174f54bf412dafRenato Golin // even for GNUEABI, so we can make a distinction here and still conform to 367103ba845f09252d90a05109af7174f54bf412dafRenato Golin // the EABI on GNU (and Android) mode. This requires change in Clang, too. 36836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // FIXME: The Darwin exception is temporary, while we move users to 36936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // "*-*-*-macho" triples as quickly as possible. 370103ba845f09252d90a05109af7174f54bf412dafRenato Golin bool isTargetAEABI() const { 37136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return (TargetTriple.getEnvironment() == Triple::EABI || 37236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines TargetTriple.getEnvironment() == Triple::EABIHF) && 37336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines !isTargetDarwin() && !isTargetWindows(); 374103ba845f09252d90a05109af7174f54bf412dafRenato Golin } 3751a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng 37636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // ARM Targets that support EHABI exception handling standard 37736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // Darwin uses SjLj. Other targets might need more checks. 37836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetEHABICompatible() const { 37936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return (TargetTriple.getEnvironment() == Triple::EABI || 38036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines TargetTriple.getEnvironment() == Triple::GNUEABI || 38136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines TargetTriple.getEnvironment() == Triple::EABIHF || 38236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines TargetTriple.getEnvironment() == Triple::GNUEABIHF || 38336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines TargetTriple.getEnvironment() == Triple::Android) && 38436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines !isTargetDarwin() && !isTargetWindows(); 38536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines } 38636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 38736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetHardFloat() const { 38836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines // FIXME: this is invalid for WindowsCE 38936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return TargetTriple.getEnvironment() == Triple::GNUEABIHF || 39036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines TargetTriple.getEnvironment() == Triple::EABIHF || 39136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines isTargetWindows(); 39236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines } 39336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isTargetAndroid() const { 39436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return TargetTriple.getEnvironment() == Triple::Android; 39536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines } 39636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 39736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isAPCS_ABI() const { 39836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines assert(TargetABI != ARM_ABI_UNKNOWN); 39936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return TargetABI == ARM_ABI_APCS; 40036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines } 40136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isAAPCS_ABI() const { 40236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines assert(TargetABI != ARM_ABI_UNKNOWN); 40336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return TargetABI == ARM_ABI_AAPCS; 40436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines } 4053630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 406963b03c1a9f6a9742671459f103ee9a566c6de58Evan Cheng bool isThumb() const { return InThumbMode; } 407963b03c1a9f6a9742671459f103ee9a566c6de58Evan Cheng bool isThumb1Only() const { return InThumbMode && !HasThumb2; } 408963b03c1a9f6a9742671459f103ee9a566c6de58Evan Cheng bool isThumb2() const { return InThumbMode && HasThumb2; } 40994ca42ff0407d71bacc41de4032d8dbe6358d33dEvan Cheng bool hasThumb2() const { return HasThumb2; } 4100f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson bool isMClass() const { return ARMProcClass == MClass; } 4110f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson bool isRClass() const { return ARMProcClass == RClass; } 4120f22c134be40a337b30e30bdafb9e8b6880dea1eAmara Emerson bool isAClass() const { return ARMProcClass == AClass; } 413a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 414a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool isR9Reserved() const { return IsR9Reserved; } 415a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 416cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines bool useMovt(const MachineFunction &MF) const; 417cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 4186d2f9cec715c50bca44816d9bdea97f8b63bf2a0Bob Wilson bool supportsTailCall() const { return SupportsTailCall; } 4195cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 42002aba73a9ec04d0de9424422249af3948ca9573aBob Wilson bool allowsUnalignedMem() const { return AllowsUnalignedMem; } 42102aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 422929bdb23794b615dc6b0cc59db21f0450c3ce33bWeiming Zhao bool restrictIT() const { return RestrictIT; } 423929bdb23794b615dc6b0cc59db21f0450c3ce33bWeiming Zhao 42441a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov const std::string & getCPUString() const { return CPUString; } 4255cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 42636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines bool isLittle() const { return IsLittle; } 42736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 428654d5440a477b1f6c89b051107e041a331f78e27Owen Anderson unsigned getMispredictionPenalty() const; 429dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines 430cb01efb7988d119d6e2aedab1740695aa6a9cc0cBob Wilson /// This function returns true if the target has sincos() routine in its 431cb01efb7988d119d6e2aedab1740695aa6a9cc0cBob Wilson /// compiler runtime or math libraries. 432cb01efb7988d119d6e2aedab1740695aa6a9cc0cBob Wilson bool hasSinCos() const; 4336e8f4c404825b79f9b9176483653f1aa927dfbdeAndrew Trick 434cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines /// True for some subtargets at > -O0. 435cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines bool enablePostMachineScheduler() const; 436cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 437c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwin /// enablePostRAScheduler - True at 'More' optimization. 4384c3715c2e5e17d7216a96ac2baf9720630f04408David Goodwin bool enablePostRAScheduler(CodeGenOpt::Level OptLevel, 4395b1b4489cf3a0f56f8be0673fc5cc380a32d277bEvan Cheng TargetSubtargetInfo::AntiDepBreakMode& Mode, 44036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines RegClassVector& CriticalPathRCs) const override; 44141a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov 442cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines // enableAtomicExpandLoadLinked - True if we need to expand our atomics. 443cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines bool enableAtomicExpandLoadLinked() const override; 444cd81d94322a39503e4a3e87b6ee03d4fcb3465fbStephen Hines 445764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach /// getInstrItins - Return the instruction itineraies based on subtarget 4468557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng /// selection. 4478557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng const InstrItineraryData &getInstrItineraryData() const { return InstrItins; } 4488557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng 449a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// getStackAlignment - Returns the minimum alignment known to hold of the 450a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// stack frame on entry to the function and which must be maintained by every 451a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// function for this subtarget. 452a8e2989ece6dc46df59b0768184028257f913843Evan Cheng unsigned getStackAlignment() const { return stackAlignment; } 453e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng 454e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng /// GVIsIndirectSymbol - true if the GV will be accessed via an indirect 455e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng /// symbol. 45646510a73e977273ec67747eb34cbdb43f815e451Dan Gohman bool GVIsIndirectSymbol(const GlobalValue *GV, Reloc::Model RelocM) const; 457a8e2989ece6dc46df59b0768184028257f913843Evan Cheng}; 458a8e2989ece6dc46df59b0768184028257f913843Evan Cheng} // End llvm namespace 459a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 460a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#endif // ARMSUBTARGET_H 461