include "llvm/Target/Target.td"
+//===----------------------------------------------------------------------===//
+// ARM Subtarget state.
+//
+
+def ModeThumb : SubtargetFeature<"thumb-mode", "InThumbMode", "true",
+ "Thumb mode">;
+
+def ModeNaCl : SubtargetFeature<"nacl-mode", "InNaClMode", "true",
+ "Native client mode">;
//===----------------------------------------------------------------------===//
// 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">;
// to just not use them.
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",
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">;
+
+/// Some M architectures don't have the DSP extension (v7E-M vs. v7M)
+def FeatureDSPThumb2 : SubtargetFeature<"t2dsp", "Thumb2DSP", "true",
+ "Supports v7 DSP instructions in 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",
- [FeatureNoARM, 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, FeatureNoARM, FeatureDB,
- FeatureHWDiv]>;
+// 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 HasV6T2Ops : SubtargetFeature<"v6t2", "HasV6T2Ops", "true",
+ "Support ARM v6t2 instructions",
+ [HasV6Ops, FeatureThumb2, FeatureDSPThumb2]>;
+def HasV7Ops : SubtargetFeature<"v7", "HasV7Ops", "true",
+ "Support ARM v7 instructions",
+ [HasV6T2Ops]>;
//===----------------------------------------------------------------------===//
// ARM Processors supported.
include "ARMSchedule.td"
// ARM processor families.
-def ProcOthers : SubtargetFeature<"others", "ARMProcFamily", "Others",
- "One of the other ARM processor families">;
def ProcA8 : SubtargetFeature<"a8", "ARMProcFamily", "CortexA8",
"Cortex-A8 ARM processors",
[FeatureSlowFPBrcc, FeatureNEONForFP,
- FeatureHasSlowFPVMLx, FeatureT2XtPk]>;
+ FeatureHasSlowFPVMLx, FeatureVMLxForwarding,
+ FeatureT2XtPk]>;
def ProcA9 : SubtargetFeature<"a9", "ARMProcFamily", "CortexA9",
"Cortex-A9 ARM processors",
- [FeatureHasSlowFPVMLx, FeatureT2XtPk]>;
+ [FeatureVMLxForwarding,
+ FeatureT2XtPk, FeatureFP16,
+ FeatureAvoidPartialCPSR]>;
class ProcNoItin<string Name, list<SubtargetFeature> Features>
: Processor<Name, GenericItineraries, Features>;
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,
+def : Processor<"arm1136j-s", ARMV6Itineraries, [HasV6Ops]>;
+def : Processor<"arm1136jf-s", ARMV6Itineraries, [HasV6Ops, FeatureVFP2,
FeatureHasSlowFPVMLx]>;
-def : Processor<"arm1176jz-s", ARMV6Itineraries, [ArchV6]>;
-def : Processor<"arm1176jzf-s", ARMV6Itineraries, [ArchV6, FeatureVFP2,
+def : Processor<"arm1176jz-s", ARMV6Itineraries, [HasV6Ops]>;
+def : Processor<"arm1176jzf-s", ARMV6Itineraries, [HasV6Ops, FeatureVFP2,
FeatureHasSlowFPVMLx]>;
-def : Processor<"mpcorenovfp", ARMV6Itineraries, [ArchV6]>;
-def : Processor<"mpcore", ARMV6Itineraries, [ArchV6, FeatureVFP2,
+def : Processor<"mpcorenovfp", ARMV6Itineraries, [HasV6Ops]>;
+def : Processor<"mpcore", ARMV6Itineraries, [HasV6Ops, FeatureVFP2,
FeatureHasSlowFPVMLx]>;
// V6M Processors.
-def : Processor<"cortex-m0", ARMV6Itineraries, [ArchV6M]>;
+def : Processor<"cortex-m0", ARMV6Itineraries, [HasV6Ops, FeatureNoARM,
+ FeatureDB]>;
// V6T2 Processors.
-def : Processor<"arm1156t2-s", ARMV6Itineraries, [ArchV6T2]>;
-def : Processor<"arm1156t2f-s", ARMV6Itineraries, [ArchV6T2, FeatureVFP2,
+def : Processor<"arm1156t2-s", ARMV6Itineraries, [HasV6T2Ops]>;
+def : Processor<"arm1156t2f-s", ARMV6Itineraries, [HasV6T2Ops, FeatureVFP2,
FeatureHasSlowFPVMLx]>;
-// V7 Processors.
+// V7a Processors.
def : Processor<"cortex-a8", CortexA8Itineraries,
- [ArchV7A, ProcA8]>;
+ [ProcA8, HasV7Ops, FeatureNEON, FeatureDB,
+ FeatureDSPThumb2]>;
def : Processor<"cortex-a9", CortexA9Itineraries,
- [ArchV7A, ProcA9]>;
+ [ProcA9, HasV7Ops, FeatureNEON, FeatureDB,
+ FeatureDSPThumb2]>;
+def : Processor<"cortex-a9-mp", CortexA9Itineraries,
+ [ProcA9, HasV7Ops, FeatureNEON, FeatureDB,
+ FeatureDSPThumb2, FeatureMP]>;
// V7M Processors.
-def : ProcNoItin<"cortex-m3", [ArchV7M]>;
-def : ProcNoItin<"cortex-m4", [ArchV7M, FeatureVFP2, FeatureVFPOnlySP]>;
+def : ProcNoItin<"cortex-m3", [HasV7Ops,
+ FeatureThumb2, FeatureNoARM, FeatureDB,
+ FeatureHWDiv]>;
+
+// V7EM Processors.
+def : ProcNoItin<"cortex-m4", [HasV7Ops,
+ FeatureThumb2, FeatureNoARM, FeatureDB,
+ FeatureHWDiv, FeatureDSPThumb2,
+ FeatureT2XtPk, FeatureVFP2,
+ FeatureVFPOnlySP]>;
//===----------------------------------------------------------------------===//
// Register File Description
projects / oota-llvm.git / blobdiff