ARMSubtarget.h revision 48575f6ea7d5cd21ab29ca370f58fcf9ca31400b
1a8e2989ece6dc46df59b0768184028257f913843Evan Cheng//=====---- 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// 10a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// This file declares the ARM specific subclass of TargetSubtarget. 11a8e2989ece6dc46df59b0768184028257f913843Evan Cheng// 12a8e2989ece6dc46df59b0768184028257f913843Evan Cheng//===----------------------------------------------------------------------===// 13a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 14a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#ifndef ARMSUBTARGET_H 15a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#define ARMSUBTARGET_H 16a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 178557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng#include "llvm/Target/TargetInstrItineraries.h" 1863476a80404125e5196b6c09113c1d4796da0604Evan Cheng#include "llvm/Target/TargetMachine.h" 19a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include "llvm/Target/TargetSubtarget.h" 200855dee564f80160abf95497475306af38ab7f84David Goodwin#include "ARMBaseRegisterInfo.h" 21a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include <string> 22a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 23a8e2989ece6dc46df59b0768184028257f913843Evan Chengnamespace llvm { 24e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Chengclass GlobalValue; 25a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 26a8e2989ece6dc46df59b0768184028257f913843Evan Chengclass ARMSubtarget : public TargetSubtarget { 27a8e2989ece6dc46df59b0768184028257f913843Evan Chengprotected: 28a8e2989ece6dc46df59b0768184028257f913843Evan Cheng enum ARMArchEnum { 29d6b463225674c10511b00f8f631a89b6da5afc54Evan Cheng V4, V4T, V5T, V5TE, V6, V6M, V6T2, V7A, V7M 30a8e2989ece6dc46df59b0768184028257f913843Evan Cheng }; 31a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 323ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng enum ARMProcFamilyEnum { 333ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng Others, CortexA8, CortexA9 343ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng }; 353ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 366d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov enum ARMFPEnum { 376d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov None, VFPv2, VFPv3, NEON 386d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov }; 396d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov 40d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov enum ThumbTypeEnum { 41d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov Thumb1, 42d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov Thumb2 43d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov }; 44d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov 45ce7bf1c55f5238870bae2909cd368151f1d813d1Anton Korobeynikov /// ARMArchVersion - ARM architecture version: V4, V4T (base), V5T, V5TE, 46b1dc393bd56365ad8fabb51f22c2f3ace707c39aJim Grosbach /// V6, V6T2, V7A, V7M. 47a8e2989ece6dc46df59b0768184028257f913843Evan Cheng ARMArchEnum ARMArchVersion; 48a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 493ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng /// ARMProcFamily - ARM processor family: Cortex-A8, Cortex-A9, and others. 503ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng ARMProcFamilyEnum ARMProcFamily; 513ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 526d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov /// ARMFPUType - Floating Point Unit type. 536d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov ARMFPEnum ARMFPUType; 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 647a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng /// SlowFPBrcc - True if floating point compare + branch is slow. 657a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng bool SlowFPBrcc; 667a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng 6770459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov /// IsThumb - True if we are in thumb mode, false if in ARM mode. 6870459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov bool IsThumb; 6970459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov 7070459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov /// ThumbMode - Indicates supported Thumb version. 71d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov ThumbTypeEnum ThumbMode; 72a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 737b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng /// NoARM - True if subtarget does not support ARM mode execution. 747b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng bool NoARM; 757b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng 760dad89fa94536284d51f60868326294b725a0c61David Goodwin /// PostRAScheduler - True if using post-register-allocation scheduler. 770dad89fa94536284d51f60868326294b725a0c61David Goodwin bool PostRAScheduler; 780dad89fa94536284d51f60868326294b725a0c61David Goodwin 79a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// IsR9Reserved - True if R9 is a not available as general purpose register. 80a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool IsR9Reserved; 813630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 825cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov /// UseMovt - True if MOVT / MOVW pairs are used for materialization of 32-bit 835cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov /// imms (including global addresses). 845cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov bool UseMovt; 855cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 86631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov /// HasFP16 - True if subtarget supports half-precision FP (We support VFP+HF 87631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov /// only so far) 88631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov bool HasFP16; 89631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov 9077f42b52781b6923924a93b8ab338d183887a592Bob Wilson /// HasD16 - True if subtarget is limited to 16 double precision 9177f42b52781b6923924a93b8ab338d183887a592Bob Wilson /// FP registers for VFPv3. 9277f42b52781b6923924a93b8ab338d183887a592Bob Wilson bool HasD16; 9377f42b52781b6923924a93b8ab338d183887a592Bob Wilson 9429402132f3e890a2771818f44987ede213297431Jim Grosbach /// HasHardwareDivide - True if subtarget supports [su]div 9529402132f3e890a2771818f44987ede213297431Jim Grosbach bool HasHardwareDivide; 9629402132f3e890a2771818f44987ede213297431Jim Grosbach 9729402132f3e890a2771818f44987ede213297431Jim Grosbach /// HasT2ExtractPack - True if subtarget supports thumb2 extract/pack 9829402132f3e890a2771818f44987ede213297431Jim Grosbach /// instructions. 9929402132f3e890a2771818f44987ede213297431Jim Grosbach bool HasT2ExtractPack; 10029402132f3e890a2771818f44987ede213297431Jim Grosbach 10111db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng /// HasDataBarrier - True if the subtarget supports DMB / DSB data barrier 10211db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng /// instructions. 10311db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng bool HasDataBarrier; 10411db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng 105e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng /// Pref32BitThumb - If true, codegen would prefer 32-bit Thumb instructions 106e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng /// over 16-bit ones. 107e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng bool Pref32BitThumb; 108e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng 109dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng /// HasMPExtension - True if the subtarget supports Multiprocessing 110dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng /// extension (ARMv7 only). 111dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng bool HasMPExtension; 112dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng 113fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach /// FPOnlySP - If true, the floating point unit only supports single 114fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach /// precision. 115fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach bool FPOnlySP; 116fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach 11702aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// AllowsUnalignedMem - If true, the subtarget allows unaligned memory 11802aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// accesses for some types. For details, see 11902aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// ARMTargetLowering::allowsUnalignedMemoryAccesses(). 12002aba73a9ec04d0de9424422249af3948ca9573aBob Wilson bool AllowsUnalignedMem; 12102aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 122a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// stackAlignment - The minimum alignment known to hold of the stack frame on 123a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// entry to the function and which must be maintained by every function. 124a8e2989ece6dc46df59b0768184028257f913843Evan Cheng unsigned stackAlignment; 125a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 12641a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov /// CPUString - String name of used CPU. 12741a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov std::string CPUString; 12841a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov 1298557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng /// Selected instruction itineraries (one entry per itinerary class.) 1308557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng InstrItineraryData InstrItins; 131764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach 132a8e2989ece6dc46df59b0768184028257f913843Evan Cheng public: 1331a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng enum { 1341a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng isELF, isDarwin 1351a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng } TargetType; 1361a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng 1373630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio enum { 1383630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio ARM_ABI_APCS, 1393630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio ARM_ABI_AAPCS // ARM EABI 1403630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio } TargetABI; 1413630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 142a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// This constructor initializes the data members to match that 1433be03406c9c3b2075d5ae416499af2f15f703d6fDaniel Dunbar /// of the specified triple. 144a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// 1453be03406c9c3b2075d5ae416499af2f15f703d6fDaniel Dunbar ARMSubtarget(const std::string &TT, const std::string &FS, bool isThumb); 146a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 147707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman /// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size 148707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman /// that still makes it profitable to inline the call. 149e0703c84ddeb1a1276de4e38210c1127ef5df130Rafael Espindola unsigned getMaxInlineSizeThreshold() const { 1504d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson // FIXME: For now, we don't lower memcpy's to loads / stores for Thumb1. 1514d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson // Change this once Thumb1 ldmia / stmia support is added. 1524d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson return isThumb1Only() ? 0 : 64; 153e0703c84ddeb1a1276de4e38210c1127ef5df130Rafael Espindola } 1546d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov /// ParseSubtargetFeatures - Parses features string setting specified 155a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// subtarget options. Definition of function is auto generated by tblgen. 15641a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov std::string ParseSubtargetFeatures(const std::string &FS, 15741a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov const std::string &CPU); 158a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 1596d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasV4TOps() const { return ARMArchVersion >= V4T; } 1606d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasV5TOps() const { return ARMArchVersion >= V5T; } 161a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool hasV5TEOps() const { return ARMArchVersion >= V5TE; } 1626d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasV6Ops() const { return ARMArchVersion >= V6; } 163e481f127497b20d3abe625ca4c086f85bf8b126fBob Wilson bool hasV6T2Ops() const { return ARMArchVersion >= V6T2; } 1646d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasV7Ops() const { return ARMArchVersion >= V7A; } 165a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 1663ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng bool isCortexA8() const { return ARMProcFamily == CortexA8; } 1673ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng bool isCortexA9() const { return ARMProcFamily == CortexA9; } 1683ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 1697b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng bool hasARMOps() const { return !NoARM; } 1707b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng 1716d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasVFP2() const { return ARMFPUType >= VFPv2; } 1726d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasVFP3() const { return ARMFPUType >= VFPv3; } 1736d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasNEON() const { return ARMFPUType >= NEON; } 174764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach bool useNEONForSinglePrecisionFP() const { 17542a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin return hasNEON() && UseNEONForSinglePrecisionFP; } 176eae216c6d3d29cb9024ddf436a8f2ce222bb9ec8Shantonu Sen bool hasDivide() const { return HasHardwareDivide; } 177eae216c6d3d29cb9024ddf436a8f2ce222bb9ec8Shantonu Sen bool hasT2ExtractPack() const { return HasT2ExtractPack; } 17811db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng bool hasDataBarrier() const { return HasDataBarrier; } 17948575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng bool useFPVMLx() const { return !SlowFPVMLx; } 1807a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng bool isFPBrccSlow() const { return SlowFPBrcc; } 181fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach bool isFPOnlySP() const { return FPOnlySP; } 182e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng bool prefers32BitThumb() const { return Pref32BitThumb; } 183dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng bool hasMPExtension() const { return HasMPExtension; } 184764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach 185631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov bool hasFP16() const { return HasFP16; } 18677f42b52781b6923924a93b8ab338d183887a592Bob Wilson bool hasD16() const { return HasD16; } 187631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov 1881a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng bool isTargetDarwin() const { return TargetType == isDarwin; } 1891a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng bool isTargetELF() const { return TargetType == isELF; } 1901a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng 1913630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio bool isAPCS_ABI() const { return TargetABI == ARM_ABI_APCS; } 1923630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio bool isAAPCS_ABI() const { return TargetABI == ARM_ABI_AAPCS; } 1933630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 19470459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov bool isThumb() const { return IsThumb; } 195bb6296234238aab74a531b382d92342269bea902Anton Korobeynikov bool isThumb1Only() const { return IsThumb && (ThumbMode == Thumb1); } 1963147fb2cff9ca0d258f8ab20ff23b9c447024df1Evan Cheng bool isThumb2() const { return IsThumb && (ThumbMode == Thumb2); } 197d770d9e7d1f5c65b185897dcf226b3fc64598683Evan Cheng bool hasThumb2() const { return ThumbMode >= Thumb2; } 198a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 199a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool isR9Reserved() const { return IsR9Reserved; } 200a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 2015cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov bool useMovt() const { return UseMovt && hasV6T2Ops(); } 2025cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 20302aba73a9ec04d0de9424422249af3948ca9573aBob Wilson bool allowsUnalignedMem() const { return AllowsUnalignedMem; } 20402aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 20541a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov const std::string & getCPUString() const { return CPUString; } 2065cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 207654d5440a477b1f6c89b051107e041a331f78e27Owen Anderson unsigned getMispredictionPenalty() const; 208654d5440a477b1f6c89b051107e041a331f78e27Owen Anderson 209c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwin /// enablePostRAScheduler - True at 'More' optimization. 2104c3715c2e5e17d7216a96ac2baf9720630f04408David Goodwin bool enablePostRAScheduler(CodeGenOpt::Level OptLevel, 2110855dee564f80160abf95497475306af38ab7f84David Goodwin TargetSubtarget::AntiDepBreakMode& Mode, 21287d21b92fc42f6b3bd8567a83fc5b5191c1205e5David Goodwin RegClassVector& CriticalPathRCs) const; 21341a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov 214764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach /// getInstrItins - Return the instruction itineraies based on subtarget 2158557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng /// selection. 2168557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng const InstrItineraryData &getInstrItineraryData() const { return InstrItins; } 2178557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng 218a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// getStackAlignment - Returns the minimum alignment known to hold of the 219a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// stack frame on entry to the function and which must be maintained by every 220a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// function for this subtarget. 221a8e2989ece6dc46df59b0768184028257f913843Evan Cheng unsigned getStackAlignment() const { return stackAlignment; } 222e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng 223e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng /// GVIsIndirectSymbol - true if the GV will be accessed via an indirect 224e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng /// symbol. 22546510a73e977273ec67747eb34cbdb43f815e451Dan Gohman bool GVIsIndirectSymbol(const GlobalValue *GV, Reloc::Model RelocM) const; 226a8e2989ece6dc46df59b0768184028257f913843Evan Cheng}; 227a8e2989ece6dc46df59b0768184028257f913843Evan Cheng} // End llvm namespace 228a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 229a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#endif // ARMSUBTARGET_H 230