ARMSubtarget.h revision ab8be96fd30ca9396e6b84fdddf1ac6208984cad
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 17a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include "llvm/Target/TargetSubtarget.h" 18ab8be96fd30ca9396e6b84fdddf1ac6208984cadEvan Cheng#include "llvm/MC/MCInstrItineraries.h" 19b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "llvm/ADT/Triple.h" 20a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include <string> 21a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 22a8e2989ece6dc46df59b0768184028257f913843Evan Chengnamespace llvm { 23e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Chengclass GlobalValue; 24a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 25a8e2989ece6dc46df59b0768184028257f913843Evan Chengclass ARMSubtarget : public TargetSubtarget { 26a8e2989ece6dc46df59b0768184028257f913843Evan Chengprotected: 27a8e2989ece6dc46df59b0768184028257f913843Evan Cheng enum ARMArchEnum { 28d6b463225674c10511b00f8f631a89b6da5afc54Evan Cheng V4, V4T, V5T, V5TE, V6, V6M, V6T2, V7A, V7M 29a8e2989ece6dc46df59b0768184028257f913843Evan Cheng }; 30a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 313ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng enum ARMProcFamilyEnum { 323ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng Others, CortexA8, CortexA9 333ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng }; 343ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 356d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov enum ARMFPEnum { 366d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov None, VFPv2, VFPv3, NEON 376d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov }; 386d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov 39d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov enum ThumbTypeEnum { 40d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov Thumb1, 41d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov Thumb2 42d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov }; 43d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov 44ce7bf1c55f5238870bae2909cd368151f1d813d1Anton Korobeynikov /// ARMArchVersion - ARM architecture version: V4, V4T (base), V5T, V5TE, 45b1dc393bd56365ad8fabb51f22c2f3ace707c39aJim Grosbach /// V6, V6T2, V7A, V7M. 46a8e2989ece6dc46df59b0768184028257f913843Evan Cheng ARMArchEnum ARMArchVersion; 47a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 483ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng /// ARMProcFamily - ARM processor family: Cortex-A8, Cortex-A9, and others. 493ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng ARMProcFamilyEnum ARMProcFamily; 503ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 516d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov /// ARMFPUType - Floating Point Unit type. 526d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov ARMFPEnum ARMFPUType; 53a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 541f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// UseNEONForSinglePrecisionFP - if the NEONFP attribute has been 551f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// specified. Use the method useNEONForSinglePrecisionFP() to 561f0e404c87675ce75e34bcd91395c660fe1d4ac1David Goodwin /// determine if NEON should actually be used. 5742a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin bool UseNEONForSinglePrecisionFP; 5842a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin 5948575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng /// SlowFPVMLx - If the VFP2 / NEON instructions are available, indicates 6048575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng /// whether the FP VML[AS] instructions are slow (if so, don't use them). 6148575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng bool SlowFPVMLx; 622676737e5ed3e4b5c89b4d06b60d998e9318eb73Jim Grosbach 63463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng /// HasVMLxForwarding - If true, NEON has special multiplier accumulator 64463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng /// forwarding to allow mul + mla being issued back to back. 65463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng bool HasVMLxForwarding; 66463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng 677a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng /// SlowFPBrcc - True if floating point compare + branch is slow. 687a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng bool SlowFPBrcc; 697a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng 7070459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov /// IsThumb - True if we are in thumb mode, false if in ARM mode. 7170459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov bool IsThumb; 7270459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov 7370459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov /// ThumbMode - Indicates supported Thumb version. 74d4022c3fbb0705abdc8eddc3ee4a5059f5ef8094Anton Korobeynikov ThumbTypeEnum ThumbMode; 75a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 767b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng /// NoARM - True if subtarget does not support ARM mode execution. 777b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng bool NoARM; 787b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng 790dad89fa94536284d51f60868326294b725a0c61David Goodwin /// PostRAScheduler - True if using post-register-allocation scheduler. 800dad89fa94536284d51f60868326294b725a0c61David Goodwin bool PostRAScheduler; 810dad89fa94536284d51f60868326294b725a0c61David Goodwin 82a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// IsR9Reserved - True if R9 is a not available as general purpose register. 83a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool IsR9Reserved; 843630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 855cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov /// UseMovt - True if MOVT / MOVW pairs are used for materialization of 32-bit 865cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov /// imms (including global addresses). 875cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov bool UseMovt; 885cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 89631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov /// HasFP16 - True if subtarget supports half-precision FP (We support VFP+HF 90631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov /// only so far) 91631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov bool HasFP16; 92631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov 9377f42b52781b6923924a93b8ab338d183887a592Bob Wilson /// HasD16 - True if subtarget is limited to 16 double precision 9477f42b52781b6923924a93b8ab338d183887a592Bob Wilson /// FP registers for VFPv3. 9577f42b52781b6923924a93b8ab338d183887a592Bob Wilson bool HasD16; 9677f42b52781b6923924a93b8ab338d183887a592Bob Wilson 9729402132f3e890a2771818f44987ede213297431Jim Grosbach /// HasHardwareDivide - True if subtarget supports [su]div 9829402132f3e890a2771818f44987ede213297431Jim Grosbach bool HasHardwareDivide; 9929402132f3e890a2771818f44987ede213297431Jim Grosbach 10029402132f3e890a2771818f44987ede213297431Jim Grosbach /// HasT2ExtractPack - True if subtarget supports thumb2 extract/pack 10129402132f3e890a2771818f44987ede213297431Jim Grosbach /// instructions. 10229402132f3e890a2771818f44987ede213297431Jim Grosbach bool HasT2ExtractPack; 10329402132f3e890a2771818f44987ede213297431Jim Grosbach 10411db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng /// HasDataBarrier - True if the subtarget supports DMB / DSB data barrier 10511db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng /// instructions. 10611db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng bool HasDataBarrier; 10711db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng 108e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng /// Pref32BitThumb - If true, codegen would prefer 32-bit Thumb instructions 109e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng /// over 16-bit ones. 110e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng bool Pref32BitThumb; 111e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng 1125dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// AvoidCPSRPartialUpdate - If true, codegen would avoid using instructions 1135dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// that partially update CPSR and add false dependency on the previous 1145dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson /// CPSR setting instruction. 1155dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson bool AvoidCPSRPartialUpdate; 1165dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson 117dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng /// HasMPExtension - True if the subtarget supports Multiprocessing 118dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng /// extension (ARMv7 only). 119dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng bool HasMPExtension; 120dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng 121fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach /// FPOnlySP - If true, the floating point unit only supports single 122fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach /// precision. 123fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach bool FPOnlySP; 124fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach 12502aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// AllowsUnalignedMem - If true, the subtarget allows unaligned memory 12602aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// accesses for some types. For details, see 12702aba73a9ec04d0de9424422249af3948ca9573aBob Wilson /// ARMTargetLowering::allowsUnalignedMemoryAccesses(). 12802aba73a9ec04d0de9424422249af3948ca9573aBob Wilson bool AllowsUnalignedMem; 12902aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 130a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// stackAlignment - The minimum alignment known to hold of the stack frame on 131a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// entry to the function and which must be maintained by every function. 132a8e2989ece6dc46df59b0768184028257f913843Evan Cheng unsigned stackAlignment; 133a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 13441a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov /// CPUString - String name of used CPU. 13541a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov std::string CPUString; 13641a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov 137b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng /// TargetTriple - What processor and OS we're targeting. 138b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng Triple TargetTriple; 139b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng 1408557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng /// Selected instruction itineraries (one entry per itinerary class.) 1418557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng InstrItineraryData InstrItins; 142764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach 143a8e2989ece6dc46df59b0768184028257f913843Evan Cheng public: 1441a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng enum { 1451a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng isELF, isDarwin 1461a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng } TargetType; 1471a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng 1483630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio enum { 1493630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio ARM_ABI_APCS, 1503630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio ARM_ABI_AAPCS // ARM EABI 1513630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio } TargetABI; 1523630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 153a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// This constructor initializes the data members to match that 1543be03406c9c3b2075d5ae416499af2f15f703d6fDaniel Dunbar /// of the specified triple. 155a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// 1563be03406c9c3b2075d5ae416499af2f15f703d6fDaniel Dunbar ARMSubtarget(const std::string &TT, const std::string &FS, bool isThumb); 157a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 158707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman /// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size 159707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman /// that still makes it profitable to inline the call. 160e0703c84ddeb1a1276de4e38210c1127ef5df130Rafael Espindola unsigned getMaxInlineSizeThreshold() const { 1614d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson // FIXME: For now, we don't lower memcpy's to loads / stores for Thumb1. 1624d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson // Change this once Thumb1 ldmia / stmia support is added. 1634d6113ee0699ac1eff46971881179de53e2eb810Bob Wilson return isThumb1Only() ? 0 : 64; 164e0703c84ddeb1a1276de4e38210c1127ef5df130Rafael Espindola } 1656d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov /// ParseSubtargetFeatures - Parses features string setting specified 166a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// subtarget options. Definition of function is auto generated by tblgen. 16741a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov std::string ParseSubtargetFeatures(const std::string &FS, 16841a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov const std::string &CPU); 169a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 1702da8bc8a5f7705ac131184cd247f48500da0d74eAndrew Trick void computeIssueWidth(); 1712da8bc8a5f7705ac131184cd247f48500da0d74eAndrew Trick 1726d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasV4TOps() const { return ARMArchVersion >= V4T; } 1736d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasV5TOps() const { return ARMArchVersion >= V5T; } 174a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool hasV5TEOps() const { return ARMArchVersion >= V5TE; } 1756d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasV6Ops() const { return ARMArchVersion >= V6; } 176e481f127497b20d3abe625ca4c086f85bf8b126fBob Wilson bool hasV6T2Ops() const { return ARMArchVersion >= V6T2; } 1776d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasV7Ops() const { return ARMArchVersion >= V7A; } 178a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 1793ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng bool isCortexA8() const { return ARMProcFamily == CortexA8; } 1803ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng bool isCortexA9() const { return ARMProcFamily == CortexA9; } 1813ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1Evan Cheng 1827b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng bool hasARMOps() const { return !NoARM; } 1837b4d31176efe6894bcfaa05257dd5783acda5ddcEvan Cheng 1846d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasVFP2() const { return ARMFPUType >= VFPv2; } 1856d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasVFP3() const { return ARMFPUType >= VFPv3; } 1866d7d2aa38a247426e2ccf53e3c6ad0315c9a4d8cAnton Korobeynikov bool hasNEON() const { return ARMFPUType >= NEON; } 187764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach bool useNEONForSinglePrecisionFP() const { 18842a83f2d15cbbc08f5be19856198e3c885221e9cDavid Goodwin return hasNEON() && UseNEONForSinglePrecisionFP; } 189eae216c6d3d29cb9024ddf436a8f2ce222bb9ec8Shantonu Sen bool hasDivide() const { return HasHardwareDivide; } 190eae216c6d3d29cb9024ddf436a8f2ce222bb9ec8Shantonu Sen bool hasT2ExtractPack() const { return HasT2ExtractPack; } 19111db068721d44fd5f9b0c2a3a4c90f813d2eae9cEvan Cheng bool hasDataBarrier() const { return HasDataBarrier; } 19248575f6ea7d5cd21ab29ca370f58fcf9ca31400bEvan Cheng bool useFPVMLx() const { return !SlowFPVMLx; } 193463d358f1dfdd28a6900f2f109a160be71d2a8efEvan Cheng bool hasVMLxForwarding() const { return HasVMLxForwarding; } 1947a415999625f9791a8a7eea2027e628e29de15c0Evan Cheng bool isFPBrccSlow() const { return SlowFPBrcc; } 195fcba5e6b645df89ae6b93911fe0f80b08fa6b44cJim Grosbach bool isFPOnlySP() const { return FPOnlySP; } 196e44be6381609d31b2d8879dbd5107e01404fa475Evan Cheng bool prefers32BitThumb() const { return Pref32BitThumb; } 1975dde893c2bac9e1569c38429f756c1d723e8edf2Bob Wilson bool avoidCPSRPartialUpdate() const { return AvoidCPSRPartialUpdate; } 198dfed19fe2c34c1209108afa58e8ab014ffd894e2Evan Cheng bool hasMPExtension() const { return HasMPExtension; } 199764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach 200631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov bool hasFP16() const { return HasFP16; } 20177f42b52781b6923924a93b8ab338d183887a592Bob Wilson bool hasD16() const { return HasD16; } 202631379e79c0971c5bac13629b8caf8912ed4c35cAnton Korobeynikov 203c8578948c9b35080dedd6527abf4f48fc4de43d3Evan Cheng const Triple &getTargetTriple() const { return TargetTriple; } 204c8578948c9b35080dedd6527abf4f48fc4de43d3Evan Cheng 205912225e18559a73228099330a4c253fdccf9fa3dDaniel Dunbar bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); } 206b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng bool isTargetELF() const { return !isTargetDarwin(); } 2071a3771e30e48b9cc21ccdc79fc9cf37ec4104b17Evan Cheng 2083630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio bool isAPCS_ABI() const { return TargetABI == ARM_ABI_APCS; } 2093630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio bool isAAPCS_ABI() const { return TargetABI == ARM_ABI_AAPCS; } 2103630e78db9268dbe81a9369a33e49b857804f2ecLauro Ramos Venancio 21170459bef9ccd73b3a2a44fdd62f2509861112745Anton Korobeynikov bool isThumb() const { return IsThumb; } 212bb6296234238aab74a531b382d92342269bea902Anton Korobeynikov bool isThumb1Only() const { return IsThumb && (ThumbMode == Thumb1); } 2133147fb2cff9ca0d258f8ab20ff23b9c447024df1Evan Cheng bool isThumb2() const { return IsThumb && (ThumbMode == Thumb2); } 214d770d9e7d1f5c65b185897dcf226b3fc64598683Evan Cheng bool hasThumb2() const { return ThumbMode >= Thumb2; } 215a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 216a8e2989ece6dc46df59b0768184028257f913843Evan Cheng bool isR9Reserved() const { return IsR9Reserved; } 217a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 2185cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov bool useMovt() const { return UseMovt && hasV6T2Ops(); } 2195cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 22002aba73a9ec04d0de9424422249af3948ca9573aBob Wilson bool allowsUnalignedMem() const { return AllowsUnalignedMem; } 22102aba73a9ec04d0de9424422249af3948ca9573aBob Wilson 22241a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov const std::string & getCPUString() const { return CPUString; } 2235cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 224654d5440a477b1f6c89b051107e041a331f78e27Owen Anderson unsigned getMispredictionPenalty() const; 2256e8f4c404825b79f9b9176483653f1aa927dfbdeAndrew Trick 226c2e8a7e8d2ab156afaa8ab0d0317dd9ee3db7d30David Goodwin /// enablePostRAScheduler - True at 'More' optimization. 2274c3715c2e5e17d7216a96ac2baf9720630f04408David Goodwin bool enablePostRAScheduler(CodeGenOpt::Level OptLevel, 2280855dee564f80160abf95497475306af38ab7f84David Goodwin TargetSubtarget::AntiDepBreakMode& Mode, 22987d21b92fc42f6b3bd8567a83fc5b5191c1205e5David Goodwin RegClassVector& CriticalPathRCs) const; 23041a024385f1220eadc48b48cb4c044a5fbc1b361Anton Korobeynikov 231764ab52dd80310a205c9888bf166d09dab858f90Jim Grosbach /// getInstrItins - Return the instruction itineraies based on subtarget 2328557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng /// selection. 2338557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng const InstrItineraryData &getInstrItineraryData() const { return InstrItins; } 2348557c2bcb8002169d890eb8485e9a1d7219e4343Evan Cheng 235a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// getStackAlignment - Returns the minimum alignment known to hold of the 236a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// stack frame on entry to the function and which must be maintained by every 237a8e2989ece6dc46df59b0768184028257f913843Evan Cheng /// function for this subtarget. 238a8e2989ece6dc46df59b0768184028257f913843Evan Cheng unsigned getStackAlignment() const { return stackAlignment; } 239e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng 240e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng /// GVIsIndirectSymbol - true if the GV will be accessed via an indirect 241e4e4ed3b56f63e9343e01bf0b2ecd7c1f45d296cEvan Cheng /// symbol. 24246510a73e977273ec67747eb34cbdb43f815e451Dan Gohman bool GVIsIndirectSymbol(const GlobalValue *GV, Reloc::Model RelocM) const; 243a8e2989ece6dc46df59b0768184028257f913843Evan Cheng}; 244a8e2989ece6dc46df59b0768184028257f913843Evan Cheng} // End llvm namespace 245a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 246a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#endif // ARMSUBTARGET_H 247