[ARM] Renaming +t2dsp feature into +dsp, as discussed on llvm-dev
[oota-llvm.git] / lib / Target / ARM / ARM.td
index bf95e99d8d724e80ed59e88973edec3ecd24f553..26415be1446931d3dcad97d067c0be0aadb07d52 100644 (file)
@@ -1,4 +1,4 @@
-//===- ARM.td - Describe the ARM Target Machine -----------------*- C++ -*-===//
+//===-- ARM.td - Describe the ARM Target Machine -----------*- tablegen -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 
 include "llvm/Target/Target.td"
 
+//===----------------------------------------------------------------------===//
+// ARM Subtarget state.
+//
+
+def ModeThumb  : SubtargetFeature<"thumb-mode", "InThumbMode", "true",
+                                  "Thumb mode">;
+
+def ModeSoftFloat : SubtargetFeature<"soft-float", "UseSoftFloat", "true",
+                                     "Use software floating point features.">;
+
 //===----------------------------------------------------------------------===//
 // ARM Subtarget features.
 //
 
-def FeatureVFP2 : SubtargetFeature<"vfp2", "ARMFPUType", "VFPv2",
+def FeatureVFP2 : SubtargetFeature<"vfp2", "HasVFPv2", "true",
                                    "Enable VFP2 instructions">;
-def FeatureVFP3 : SubtargetFeature<"vfp3", "ARMFPUType", "VFPv3",
-                                   "Enable VFP3 instructions">;
-def FeatureNEON : SubtargetFeature<"neon", "ARMFPUType", "NEON",
-                                   "Enable NEON instructions">;
-def FeatureThumb2 : SubtargetFeature<"thumb2", "ThumbMode", "Thumb2",
+def FeatureVFP3 : SubtargetFeature<"vfp3", "HasVFPv3", "true",
+                                   "Enable VFP3 instructions",
+                                   [FeatureVFP2]>;
+def FeatureNEON : SubtargetFeature<"neon", "HasNEON", "true",
+                                   "Enable NEON instructions",
+                                   [FeatureVFP3]>;
+def FeatureThumb2 : SubtargetFeature<"thumb2", "HasThumb2", "true",
                                      "Enable Thumb2 instructions">;
+def FeatureNoARM  : SubtargetFeature<"noarm", "NoARM", "true",
+                                     "Does not support ARM mode execution",
+                                     [ModeThumb]>;
 def FeatureFP16   : SubtargetFeature<"fp16", "HasFP16", "true",
                                      "Enable half-precision floating point">;
+def FeatureVFP4   : SubtargetFeature<"vfp4", "HasVFPv4", "true",
+                                     "Enable VFP4 instructions",
+                                     [FeatureVFP3, FeatureFP16]>;
+def FeatureFPARMv8 : SubtargetFeature<"fp-armv8", "HasFPARMv8",
+                                   "true", "Enable ARMv8 FP",
+                                   [FeatureVFP4]>;
+def FeatureD16    : SubtargetFeature<"d16", "HasD16", "true",
+                                     "Restrict VFP3 to 16 double registers">;
 def FeatureHWDiv  : SubtargetFeature<"hwdiv", "HasHardwareDivide", "true",
                                      "Enable divide instructions">;
+def FeatureHWDivARM  : SubtargetFeature<"hwdiv-arm",
+                                        "HasHardwareDivideInARM", "true",
+                                      "Enable divide instructions in ARM mode">;
 def FeatureT2XtPk : SubtargetFeature<"t2xtpk", "HasT2ExtractPack", "true",
                                  "Enable Thumb2 extract and pack instructions">;
 def FeatureDB     : SubtargetFeature<"db", "HasDataBarrier", "true",
                                    "Has data barrier (dmb / dsb) instructions">;
 def FeatureSlowFPBrcc : SubtargetFeature<"slow-fp-brcc", "SlowFPBrcc", "true",
                                          "FP compare + branch is slow">;
+def FeatureVFPOnlySP : SubtargetFeature<"fp-only-sp", "FPOnlySP", "true",
+                          "Floating point unit supports single precision only">;
+def FeaturePerfMon : SubtargetFeature<"perfmon", "HasPerfMon", "true",
+                           "Enable support for Performance Monitor extensions">;
+def FeatureTrustZone : SubtargetFeature<"trustzone", "HasTrustZone", "true",
+                          "Enable support for TrustZone security extensions">;
+def FeatureCrypto : SubtargetFeature<"crypto", "HasCrypto", "true",
+                          "Enable support for Cryptography extensions",
+                          [FeatureNEON]>;
+def FeatureCRC : SubtargetFeature<"crc", "HasCRC", "true",
+                          "Enable support for CRC instructions">;
+
+// Cyclone has preferred instructions for zeroing VFP registers, which can
+// execute in 0 cycles.
+def FeatureZCZeroing : SubtargetFeature<"zcz", "HasZeroCycleZeroing", "true",
+                                        "Has zero-cycle zeroing instructions">;
 
-// Some processors have multiply-accumulate instructions that don't
-// play nicely with other VFP instructions, and it's generally better
+// Some processors have FP multiply-accumulate instructions that don't
+// play nicely with other VFP / NEON instructions, and it's generally better
 // to just not use them.
-// FIXME: Currently, this is only flagged for Cortex-A8. It may be true for
-// others as well. We should do more benchmarking and confirm one way or
-// the other.
-def FeatureHasSlowVMLx : SubtargetFeature<"vmlx", "SlowVMLx", "true",
-                                          "Disable VFP MAC instructions">;
+def FeatureHasSlowFPVMLx : SubtargetFeature<"slowfpvmlx", "SlowFPVMLx", "true",
+                                         "Disable VFP / NEON MAC instructions">;
+
+// Cortex-A8 / A9 Advanced SIMD has multiplier accumulator forwarding.
+def FeatureVMLxForwarding : SubtargetFeature<"vmlx-forwarding",
+                                       "HasVMLxForwarding", "true",
+                                       "Has multiplier accumulator forwarding">;
+
 // Some processors benefit from using NEON instructions for scalar
 // single-precision FP operations.
-def FeatureNEONForFP   : SubtargetFeature<"neonfp", "UseNEONForSinglePrecisionFP",
-                                          "true",
-                                          "Use NEON for single precision FP">;
+def FeatureNEONForFP : SubtargetFeature<"neonfp", "UseNEONForSinglePrecisionFP",
+                                        "true",
+                                        "Use NEON for single precision FP">;
 
 // Disable 32-bit to 16-bit narrowing for experimentation.
 def FeaturePref32BitThumb : SubtargetFeature<"32bit", "Pref32BitThumb", "true",
                                              "Prefer 32-bit Thumb instrs">;
 
+/// Some instructions update CPSR partially, which can add false dependency for
+/// out-of-order implementation, e.g. Cortex-A9, unless each individual bit is
+/// mapped to a separate physical register. Avoid partial CPSR update for these
+/// processors.
+def FeatureAvoidPartialCPSR : SubtargetFeature<"avoid-partial-cpsr",
+                                               "AvoidCPSRPartialUpdate", "true",
+                                 "Avoid CPSR partial update for OOO execution">;
+
+def FeatureAvoidMOVsShOp : SubtargetFeature<"avoid-movs-shop",
+                                            "AvoidMOVsShifterOperand", "true",
+                                "Avoid movs instructions with shifter operand">;
+
+// Some processors perform return stack prediction. CodeGen should avoid issue
+// "normal" call instructions to callees which do not return.
+def FeatureHasRAS : SubtargetFeature<"ras", "HasRAS", "true",
+                                     "Has return address stack">;
+
+/// DSP extension.
+def FeatureDSP : SubtargetFeature<"dsp", "HasDSP", "true",
+                              "Supports DSP instructions in ARM and/or Thumb2">;
+
+// Multiprocessing extension.
+def FeatureMP : SubtargetFeature<"mp", "HasMPExtension", "true",
+                                 "Supports Multiprocessing extension">;
 
-// ARM architectures.
-def ArchV4T     : SubtargetFeature<"v4t", "ARMArchVersion", "V4T",
-                                   "ARM v4T">;
-def ArchV5T     : SubtargetFeature<"v5t", "ARMArchVersion", "V5T",
-                                   "ARM v5T">;
-def ArchV5TE    : SubtargetFeature<"v5te", "ARMArchVersion", "V5TE",
-                                   "ARM v5TE, v5TEj, v5TExp">;
-def ArchV6      : SubtargetFeature<"v6", "ARMArchVersion", "V6",
-                                   "ARM v6">;
-def ArchV6M     : SubtargetFeature<"v6m", "ARMArchVersion", "V6M",
-                                   "ARM v6m",
-                                   [FeatureDB]>;
-def ArchV6T2    : SubtargetFeature<"v6t2", "ARMArchVersion", "V6T2",
-                                   "ARM v6t2",
-                                   [FeatureThumb2]>;
-def ArchV7A     : SubtargetFeature<"v7a", "ARMArchVersion", "V7A",
-                                   "ARM v7A",
-                                   [FeatureThumb2, FeatureNEON, FeatureDB]>;
-def ArchV7M     : SubtargetFeature<"v7m", "ARMArchVersion", "V7M",
-                                   "ARM v7M",
-                                   [FeatureThumb2, FeatureDB]>;
+// Virtualization extension - requires HW divide (ARMv7-AR ARMARM - 4.4.8).
+def FeatureVirtualization : SubtargetFeature<"virtualization",
+                                 "HasVirtualization", "true",
+                                 "Supports Virtualization extension",
+                                 [FeatureHWDiv, FeatureHWDivARM]>;
+
+// M-series ISA
+def FeatureMClass : SubtargetFeature<"mclass", "ARMProcClass", "MClass",
+                                     "Is microcontroller profile ('M' series)">;
+
+// R-series ISA
+def FeatureRClass : SubtargetFeature<"rclass", "ARMProcClass", "RClass",
+                                     "Is realtime profile ('R' series)">;
+
+// A-series ISA
+def FeatureAClass : SubtargetFeature<"aclass", "ARMProcClass", "AClass",
+                                     "Is application profile ('A' series)">;
+
+// Special TRAP encoding for NaCl, which looks like a TRAP in Thumb too.
+// See ARMInstrInfo.td for details.
+def FeatureNaClTrap : SubtargetFeature<"nacl-trap", "UseNaClTrap", "true",
+                                       "NaCl trap">;
+
+def FeatureStrictAlign : SubtargetFeature<"strict-align",
+                                          "StrictAlign", "true",
+                                          "Disallow all unaligned memory "
+                                          "access">;
+
+def FeatureLongCalls : SubtargetFeature<"long-calls", "GenLongCalls", "true",
+                                        "Generate calls via indirect call "
+                                        "instructions">;
+
+def FeatureReserveR9 : SubtargetFeature<"reserve-r9", "ReserveR9", "true",
+                                        "Reserve R9, making it unavailable as "
+                                        "GPR">;
+
+def FeatureNoMovt : SubtargetFeature<"no-movt", "NoMovt", "true",
+                                     "Don't use movt/movw pairs for 32-bit "
+                                     "imms">;
+
+// ARM ISAs.
+def HasV4TOps   : SubtargetFeature<"v4t", "HasV4TOps", "true",
+                                   "Support ARM v4T instructions">;
+def HasV5TOps   : SubtargetFeature<"v5t", "HasV5TOps", "true",
+                                   "Support ARM v5T instructions",
+                                   [HasV4TOps]>;
+def HasV5TEOps  : SubtargetFeature<"v5te", "HasV5TEOps", "true",
+                             "Support ARM v5TE, v5TEj, and v5TExp instructions",
+                                   [HasV5TOps]>;
+def HasV6Ops    : SubtargetFeature<"v6", "HasV6Ops", "true",
+                                   "Support ARM v6 instructions",
+                                   [HasV5TEOps]>;
+def HasV6MOps   : SubtargetFeature<"v6m", "HasV6MOps", "true",
+                                   "Support ARM v6M instructions",
+                                   [HasV6Ops]>;
+def HasV6KOps   : SubtargetFeature<"v6k", "HasV6KOps", "true",
+                                   "Support ARM v6k instructions",
+                                   [HasV6Ops]>;
+def HasV6T2Ops  : SubtargetFeature<"v6t2", "HasV6T2Ops", "true",
+                                   "Support ARM v6t2 instructions",
+                                   [HasV6MOps, HasV6KOps, FeatureThumb2]>;
+def HasV7Ops    : SubtargetFeature<"v7", "HasV7Ops", "true",
+                                   "Support ARM v7 instructions",
+                                   [HasV6T2Ops, FeaturePerfMon]>;
+def HasV8Ops    : SubtargetFeature<"v8", "HasV8Ops", "true",
+                                   "Support ARM v8 instructions",
+                                   [HasV7Ops, FeatureVirtualization,
+                                    FeatureMP]>;
+def HasV8_1aOps : SubtargetFeature<"v8.1a", "HasV8_1aOps", "true",
+                                   "Support ARM v8.1a instructions",
+                                   [HasV8Ops, FeatureAClass, FeatureCRC]>;
 
 //===----------------------------------------------------------------------===//
 // ARM Processors supported.
@@ -86,8 +205,106 @@ def ArchV7M     : SubtargetFeature<"v7m", "ARMArchVersion", "V7M",
 
 include "ARMSchedule.td"
 
+// ARM processor families.
+def ProcA5      : SubtargetFeature<"a5", "ARMProcFamily", "CortexA5",
+                                   "Cortex-A5 ARM processors",
+                                   [FeatureSlowFPBrcc, FeatureHasSlowFPVMLx,
+                                    FeatureVMLxForwarding, FeatureT2XtPk,
+                                    FeatureTrustZone, FeatureMP]>;
+def ProcA7      : SubtargetFeature<"a7", "ARMProcFamily", "CortexA7",
+                                   "Cortex-A7 ARM processors",
+                                   [FeatureSlowFPBrcc, FeatureHasSlowFPVMLx,
+                                    FeatureVMLxForwarding, FeatureT2XtPk,
+                                    FeatureVFP4, FeatureMP,
+                                    FeatureHWDiv, FeatureHWDivARM,
+                                    FeatureTrustZone, FeatureVirtualization]>;
+def ProcA8      : SubtargetFeature<"a8", "ARMProcFamily", "CortexA8",
+                                   "Cortex-A8 ARM processors",
+                                   [FeatureSlowFPBrcc, FeatureHasSlowFPVMLx,
+                                    FeatureVMLxForwarding, FeatureT2XtPk,
+                                    FeatureTrustZone]>;
+def ProcA9      : SubtargetFeature<"a9", "ARMProcFamily", "CortexA9",
+                                   "Cortex-A9 ARM processors",
+                                   [FeatureVMLxForwarding,
+                                    FeatureT2XtPk, FeatureFP16,
+                                    FeatureAvoidPartialCPSR,
+                                    FeatureTrustZone]>;
+def ProcSwift   : SubtargetFeature<"swift", "ARMProcFamily", "Swift",
+                                   "Swift ARM processors",
+                                   [FeatureNEONForFP, FeatureT2XtPk,
+                                    FeatureVFP4, FeatureMP, FeatureHWDiv,
+                                    FeatureHWDivARM, FeatureAvoidPartialCPSR,
+                                    FeatureAvoidMOVsShOp,
+                                    FeatureHasSlowFPVMLx, FeatureTrustZone]>;
+def ProcA12     : SubtargetFeature<"a12", "ARMProcFamily", "CortexA12",
+                                   "Cortex-A12 ARM processors",
+                                   [FeatureVMLxForwarding,
+                                    FeatureT2XtPk, FeatureVFP4,
+                                    FeatureHWDiv, FeatureHWDivARM,
+                                    FeatureAvoidPartialCPSR,
+                                    FeatureVirtualization,
+                                    FeatureTrustZone]>;
+
+
+// FIXME: It has not been determined if A15 has these features.
+def ProcA15      : SubtargetFeature<"a15", "ARMProcFamily", "CortexA15",
+                                   "Cortex-A15 ARM processors",
+                                   [FeatureT2XtPk, FeatureVFP4,
+                                    FeatureMP, FeatureHWDiv, FeatureHWDivARM,
+                                    FeatureAvoidPartialCPSR,
+                                    FeatureTrustZone, FeatureVirtualization]>;
+
+def ProcA17     : SubtargetFeature<"a17", "ARMProcFamily", "CortexA17",
+                                   "Cortex-A17 ARM processors",
+                                   [FeatureVMLxForwarding,
+                                    FeatureT2XtPk, FeatureVFP4,
+                                    FeatureHWDiv, FeatureHWDivARM,
+                                    FeatureAvoidPartialCPSR,
+                                    FeatureVirtualization,
+                                    FeatureTrustZone]>;
+
+def ProcA53     : SubtargetFeature<"a53", "ARMProcFamily", "CortexA53",
+                                   "Cortex-A53 ARM processors",
+                                   [FeatureHWDiv, FeatureHWDivARM,
+                                    FeatureTrustZone, FeatureT2XtPk,
+                                    FeatureCrypto, FeatureCRC]>;
+
+def ProcA57     : SubtargetFeature<"a57", "ARMProcFamily", "CortexA57",
+                                   "Cortex-A57 ARM processors",
+                                   [FeatureHWDiv, FeatureHWDivARM,
+                                    FeatureTrustZone, FeatureT2XtPk,
+                                    FeatureCrypto, FeatureCRC]>;
+
+def ProcR4      : SubtargetFeature<"r4", "ARMProcFamily", "CortexR4",
+                                   "Cortex-R4 ARM processors",
+                                   [FeatureHWDiv,
+                                    FeatureAvoidPartialCPSR,
+                                    FeatureDSP, FeatureT2XtPk, HasV7Ops,
+                                    FeatureDB, FeatureHasRAS, FeatureRClass]>;
+
+def ProcR5      : SubtargetFeature<"r5", "ARMProcFamily", "CortexR5",
+                                   "Cortex-R5 ARM processors",
+                                   [FeatureSlowFPBrcc,
+                                    FeatureHWDiv, FeatureHWDivARM,
+                                    FeatureHasSlowFPVMLx,
+                                    FeatureAvoidPartialCPSR,
+                                    FeatureT2XtPk]>;
+
+// FIXME: krait has currently the same features as A9
+// plus VFP4 and hardware division features.
+def ProcKrait   : SubtargetFeature<"krait", "ARMProcFamily", "Krait",
+                                   "Qualcomm ARM processors",
+                                   [FeatureVMLxForwarding,
+                                    FeatureT2XtPk, FeatureFP16,
+                                    FeatureAvoidPartialCPSR,
+                                    FeatureTrustZone,
+                                    FeatureVFP4,
+                                    FeatureHWDiv,
+                                    FeatureHWDivARM]>;
+
+
 class ProcNoItin<string Name, list<SubtargetFeature> Features>
- : Processor<Name, GenericItineraries, Features>;
+ : Processor<Name, NoItineraries, Features>;
 
 // V4 Processors.
 def : ProcNoItin<"generic",         []>;
@@ -99,60 +316,171 @@ def : ProcNoItin<"strongarm1100",   []>;
 def : ProcNoItin<"strongarm1110",   []>;
 
 // V4T Processors.
-def : ProcNoItin<"arm7tdmi",        [ArchV4T]>;
-def : ProcNoItin<"arm7tdmi-s",      [ArchV4T]>;
-def : ProcNoItin<"arm710t",         [ArchV4T]>;
-def : ProcNoItin<"arm720t",         [ArchV4T]>;
-def : ProcNoItin<"arm9",            [ArchV4T]>;
-def : ProcNoItin<"arm9tdmi",        [ArchV4T]>;
-def : ProcNoItin<"arm920",          [ArchV4T]>;
-def : ProcNoItin<"arm920t",         [ArchV4T]>;
-def : ProcNoItin<"arm922t",         [ArchV4T]>;
-def : ProcNoItin<"arm940t",         [ArchV4T]>;
-def : ProcNoItin<"ep9312",          [ArchV4T]>;
+def : ProcNoItin<"arm7tdmi",        [HasV4TOps]>;
+def : ProcNoItin<"arm7tdmi-s",      [HasV4TOps]>;
+def : ProcNoItin<"arm710t",         [HasV4TOps]>;
+def : ProcNoItin<"arm720t",         [HasV4TOps]>;
+def : ProcNoItin<"arm9",            [HasV4TOps]>;
+def : ProcNoItin<"arm9tdmi",        [HasV4TOps]>;
+def : ProcNoItin<"arm920",          [HasV4TOps]>;
+def : ProcNoItin<"arm920t",         [HasV4TOps]>;
+def : ProcNoItin<"arm922t",         [HasV4TOps]>;
+def : ProcNoItin<"arm940t",         [HasV4TOps]>;
+def : ProcNoItin<"ep9312",          [HasV4TOps]>;
 
 // V5T Processors.
-def : ProcNoItin<"arm10tdmi",       [ArchV5T]>;
-def : ProcNoItin<"arm1020t",        [ArchV5T]>;
+def : ProcNoItin<"arm10tdmi",       [HasV5TOps]>;
+def : ProcNoItin<"arm1020t",        [HasV5TOps]>;
 
 // V5TE Processors.
-def : ProcNoItin<"arm9e",           [ArchV5TE]>;
-def : ProcNoItin<"arm926ej-s",      [ArchV5TE]>;
-def : ProcNoItin<"arm946e-s",       [ArchV5TE]>;
-def : ProcNoItin<"arm966e-s",       [ArchV5TE]>;
-def : ProcNoItin<"arm968e-s",       [ArchV5TE]>;
-def : ProcNoItin<"arm10e",          [ArchV5TE]>;
-def : ProcNoItin<"arm1020e",        [ArchV5TE]>;
-def : ProcNoItin<"arm1022e",        [ArchV5TE]>;
-def : ProcNoItin<"xscale",          [ArchV5TE]>;
-def : ProcNoItin<"iwmmxt",          [ArchV5TE]>;
+def : ProcNoItin<"arm9e",           [HasV5TEOps]>;
+def : ProcNoItin<"arm926ej-s",      [HasV5TEOps]>;
+def : ProcNoItin<"arm946e-s",       [HasV5TEOps]>;
+def : ProcNoItin<"arm966e-s",       [HasV5TEOps]>;
+def : ProcNoItin<"arm968e-s",       [HasV5TEOps]>;
+def : ProcNoItin<"arm10e",          [HasV5TEOps]>;
+def : ProcNoItin<"arm1020e",        [HasV5TEOps]>;
+def : ProcNoItin<"arm1022e",        [HasV5TEOps]>;
+def : ProcNoItin<"xscale",          [HasV5TEOps]>;
+def : ProcNoItin<"iwmmxt",          [HasV5TEOps]>;
 
 // V6 Processors.
-def : Processor<"arm1136j-s",       ARMV6Itineraries, [ArchV6]>;
-def : Processor<"arm1136jf-s",      ARMV6Itineraries, [ArchV6, FeatureVFP2,
-                                                       FeatureHasSlowVMLx]>;
-def : Processor<"arm1176jz-s",      ARMV6Itineraries, [ArchV6]>;
-def : Processor<"arm1176jzf-s",     ARMV6Itineraries, [ArchV6, FeatureVFP2]>;
-def : Processor<"mpcorenovfp",      ARMV6Itineraries, [ArchV6]>;
-def : Processor<"mpcore",           ARMV6Itineraries, [ArchV6, FeatureVFP2]>;
+def : Processor<"arm1136j-s",       ARMV6Itineraries, [HasV6Ops]>;
+def : Processor<"arm1136jf-s",      ARMV6Itineraries, [HasV6Ops, FeatureVFP2,
+                                                       FeatureHasSlowFPVMLx]>;
 
 // V6M Processors.
-def : Processor<"cortex-m0",        ARMV6Itineraries, [ArchV6M]>;
+def : Processor<"cortex-m0",        ARMV6Itineraries, [HasV6MOps, FeatureNoARM,
+                                                       FeatureDB, FeatureMClass]>;
+def : Processor<"cortex-m0plus",    ARMV6Itineraries, [HasV6MOps, FeatureNoARM,
+                                                       FeatureDB, FeatureMClass]>;
+def : Processor<"cortex-m1",        ARMV6Itineraries, [HasV6MOps, FeatureNoARM,
+                                                       FeatureDB, FeatureMClass]>;
+def : Processor<"sc000",            ARMV6Itineraries, [HasV6MOps, FeatureNoARM,
+                                                       FeatureDB, FeatureMClass]>;
+
+// V6K Processors.
+def : Processor<"arm1176jz-s",      ARMV6Itineraries, [HasV6KOps]>;
+def : Processor<"arm1176jzf-s",     ARMV6Itineraries, [HasV6KOps, FeatureVFP2,
+                                                       FeatureHasSlowFPVMLx]>;
+def : Processor<"mpcorenovfp",      ARMV6Itineraries, [HasV6KOps]>;
+def : Processor<"mpcore",           ARMV6Itineraries, [HasV6KOps, FeatureVFP2,
+                                                       FeatureHasSlowFPVMLx]>;
 
 // V6T2 Processors.
-def : Processor<"arm1156t2-s",      ARMV6Itineraries, [ArchV6T2]>;
-def : Processor<"arm1156t2f-s",     ARMV6Itineraries, [ArchV6T2, FeatureVFP2]>;
+def : Processor<"arm1156t2-s",      ARMV6Itineraries, [HasV6T2Ops, FeatureDSP]>;
+def : Processor<"arm1156t2f-s",     ARMV6Itineraries, [HasV6T2Ops, FeatureVFP2,
+                                                       FeatureHasSlowFPVMLx,
+                                                       FeatureDSP]>;
+
+// V7a Processors.
+// FIXME: A5 has currently the same Schedule model as A8
+def : ProcessorModel<"cortex-a5",   CortexA8Model,
+                                    [ProcA5, HasV7Ops, FeatureNEON, FeatureDB,
+                                     FeatureVFP4, FeatureDSP,
+                                     FeatureHasRAS, FeatureAClass]>;
+def : ProcessorModel<"cortex-a7",   CortexA8Model,
+                                    [ProcA7, HasV7Ops, FeatureNEON, FeatureDB,
+                                     FeatureDSP, FeatureHasRAS, FeatureAClass]>;
+def : ProcessorModel<"cortex-a8",   CortexA8Model,
+                                    [ProcA8, HasV7Ops, FeatureNEON, FeatureDB,
+                                     FeatureDSP, FeatureHasRAS, FeatureAClass]>;
+def : ProcessorModel<"cortex-a9",   CortexA9Model,
+                                    [ProcA9, HasV7Ops, FeatureNEON, FeatureDB,
+                                     FeatureDSP, FeatureHasRAS, FeatureMP,
+                                     FeatureAClass]>;
+
+// FIXME: A12 has currently the same Schedule model as A9
+def : ProcessorModel<"cortex-a12", CortexA9Model,
+                                    [ProcA12, HasV7Ops, FeatureNEON, FeatureDB,
+                                     FeatureDSP, FeatureMP,
+                                     FeatureHasRAS, FeatureAClass]>;
+
+// FIXME: A15 has currently the same ProcessorModel as A9.
+def : ProcessorModel<"cortex-a15",   CortexA9Model,
+                                    [ProcA15, HasV7Ops, FeatureNEON, FeatureDB,
+                                     FeatureDSP, FeatureHasRAS, FeatureAClass]>;
+
+// FIXME: A17 has currently the same Schedule model as A9
+def : ProcessorModel<"cortex-a17",  CortexA9Model,
+                                    [ProcA17, HasV7Ops, FeatureNEON, FeatureDB,
+                                     FeatureDSP, FeatureMP,
+                                     FeatureHasRAS, FeatureAClass]>;
 
-// V7 Processors.
-def : Processor<"cortex-a8",        CortexA8Itineraries,
-                [ArchV7A, FeatureHasSlowVMLx,
-                 FeatureSlowFPBrcc, FeatureNEONForFP, FeatureT2XtPk]>;
-def : Processor<"cortex-a9",        CortexA9Itineraries,
-                [ArchV7A, FeatureT2XtPk]>;
+// FIXME: krait has currently the same Schedule model as A9
+def : ProcessorModel<"krait",       CortexA9Model,
+                                    [ProcKrait, HasV7Ops,
+                                     FeatureNEON, FeatureDB,
+                                     FeatureDSP, FeatureHasRAS, FeatureAClass]>;
+
+// FIXME: R4 has currently the same ProcessorModel as A8.
+def : ProcessorModel<"cortex-r4",   CortexA8Model,
+                                    [ProcR4]>;
+
+// FIXME: R4F has currently the same ProcessorModel as A8.
+def : ProcessorModel<"cortex-r4f",  CortexA8Model,
+                                    [ProcR4,
+                                     FeatureSlowFPBrcc, FeatureHasSlowFPVMLx,
+                                     FeatureVFP3, FeatureD16]>;
+
+// FIXME: R5 has currently the same ProcessorModel as A8.
+def : ProcessorModel<"cortex-r5",   CortexA8Model,
+                                    [ProcR5, HasV7Ops, FeatureDB,
+                                     FeatureVFP3, FeatureDSP, FeatureHasRAS,
+                                     FeatureD16, FeatureRClass]>;
+
+// FIXME: R7 has currently the same ProcessorModel as A8 and is modelled as R5.
+def : ProcessorModel<"cortex-r7",   CortexA8Model,
+                                    [ProcR5, HasV7Ops, FeatureDB,
+                                     FeatureVFP3, FeatureDSP,
+                                     FeatureHasRAS, FeatureVFPOnlySP,
+                                     FeatureD16, FeatureMP, FeatureRClass]>;
 
 // V7M Processors.
-def : ProcNoItin<"cortex-m3",       [ArchV7M, FeatureHWDiv]>;
-def : ProcNoItin<"cortex-m4",       [ArchV7M, FeatureHWDiv]>;
+def : ProcNoItin<"cortex-m3",       [HasV7Ops,
+                                     FeatureThumb2, FeatureNoARM, FeatureDB,
+                                     FeatureHWDiv, FeatureMClass]>;
+def : ProcNoItin<"sc300",           [HasV7Ops,
+                                     FeatureThumb2, FeatureNoARM, FeatureDB,
+                                     FeatureHWDiv, FeatureMClass]>;
+
+// V7EM Processors.
+def : ProcNoItin<"cortex-m4",       [HasV7Ops,
+                                     FeatureThumb2, FeatureNoARM, FeatureDB,
+                                     FeatureHWDiv, FeatureDSP, FeatureT2XtPk,
+                                     FeatureVFP4, FeatureVFPOnlySP, FeatureD16,
+                                     FeatureMClass]>;
+def : ProcNoItin<"cortex-m7",       [HasV7Ops,
+                                     FeatureThumb2, FeatureNoARM, FeatureDB,
+                                     FeatureHWDiv, FeatureDSP,
+                                     FeatureT2XtPk, FeatureFPARMv8,
+                                     FeatureD16, FeatureMClass]>;
+
+
+// Swift uArch Processors.
+def : ProcessorModel<"swift",       SwiftModel,
+                                    [ProcSwift, HasV7Ops, FeatureNEON,
+                                     FeatureDB, FeatureDSP,
+                                     FeatureHasRAS, FeatureAClass]>;
+
+// V8 Processors
+def : ProcNoItin<"cortex-a53",      [ProcA53, HasV8Ops, FeatureAClass,
+                                    FeatureDB, FeatureFPARMv8,
+                                    FeatureNEON, FeatureDSP]>;
+def : ProcNoItin<"cortex-a57",      [ProcA57, HasV8Ops, FeatureAClass,
+                                    FeatureDB, FeatureFPARMv8,
+                                    FeatureNEON, FeatureDSP]>;
+// FIXME: Cortex-A72 is currently modelled as an Cortex-A57.
+def : ProcNoItin<"cortex-a72",      [ProcA57, HasV8Ops, FeatureAClass,
+                                    FeatureDB, FeatureFPARMv8,
+                                    FeatureNEON, FeatureDSP]>;
+
+// Cyclone is very similar to swift
+def : ProcessorModel<"cyclone",     SwiftModel,
+                                    [ProcSwift, HasV8Ops, HasV7Ops,
+                                     FeatureCrypto, FeatureFPARMv8,
+                                     FeatureDB, FeatureDSP,
+                                     FeatureHasRAS, FeatureZCZeroing]>;
 
 //===----------------------------------------------------------------------===//
 // Register File Description
@@ -174,7 +502,15 @@ def ARMInstrInfo : InstrInfo;
 // Declare the target which we are implementing
 //===----------------------------------------------------------------------===//
 
+def ARMAsmWriter : AsmWriter {
+  string AsmWriterClassName  = "InstPrinter";
+  int PassSubtarget = 1;
+  int Variant = 0;
+  bit isMCAsmWriter = 1;
+}
+
 def ARM : Target {
   // Pull in Instruction Info:
   let InstructionSet = ARMInstrInfo;
+  let AssemblyWriters = [ARMAsmWriter];
 }