//===-- X86.td - Target definition file for the Intel X86 --*- tablegen -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This is a target description file for the Intel i386 architecture, referred // to here as the "X86" architecture. // //===----------------------------------------------------------------------===// // Get the target-independent interfaces which we are implementing... // include "llvm/Target/Target.td" //===----------------------------------------------------------------------===// // X86 Subtarget state // def Mode64Bit : SubtargetFeature<"64bit-mode", "In64BitMode", "true", "64-bit mode (x86_64)">; def Mode32Bit : SubtargetFeature<"32bit-mode", "In32BitMode", "true", "32-bit mode (80386)">; def Mode16Bit : SubtargetFeature<"16bit-mode", "In16BitMode", "true", "16-bit mode (i8086)">; //===----------------------------------------------------------------------===// // X86 Subtarget features //===----------------------------------------------------------------------===// def FeatureX87 : SubtargetFeature<"x87","HasX87", "true", "Enable X87 float instructions">; def FeatureCMOV : SubtargetFeature<"cmov","HasCMov", "true", "Enable conditional move instructions">; def FeaturePOPCNT : SubtargetFeature<"popcnt", "HasPOPCNT", "true", "Support POPCNT instruction">; def FeatureFXSR : SubtargetFeature<"fxsr", "HasFXSR", "true", "Support fxsave/fxrestore instructions">; def FeatureXSAVE : SubtargetFeature<"xsave", "HasXSAVE", "true", "Support xsave instructions">; def FeatureXSAVEOPT: SubtargetFeature<"xsaveopt", "HasXSAVEOPT", "true", "Support xsaveopt instructions">; def FeatureXSAVEC : SubtargetFeature<"xsavec", "HasXSAVEC", "true", "Support xsavec instructions">; def FeatureXSAVES : SubtargetFeature<"xsaves", "HasXSAVES", "true", "Support xsaves instructions">; def FeatureSSE1 : SubtargetFeature<"sse", "X86SSELevel", "SSE1", "Enable SSE instructions", // SSE codegen depends on cmovs, and all // SSE1+ processors support them. [FeatureCMOV]>; def FeatureSSE2 : SubtargetFeature<"sse2", "X86SSELevel", "SSE2", "Enable SSE2 instructions", [FeatureSSE1]>; def FeatureSSE3 : SubtargetFeature<"sse3", "X86SSELevel", "SSE3", "Enable SSE3 instructions", [FeatureSSE2]>; def FeatureSSSE3 : SubtargetFeature<"ssse3", "X86SSELevel", "SSSE3", "Enable SSSE3 instructions", [FeatureSSE3]>; def FeatureSSE41 : SubtargetFeature<"sse4.1", "X86SSELevel", "SSE41", "Enable SSE 4.1 instructions", [FeatureSSSE3]>; def FeatureSSE42 : SubtargetFeature<"sse4.2", "X86SSELevel", "SSE42", "Enable SSE 4.2 instructions", [FeatureSSE41]>; // The MMX subtarget feature is separate from the rest of the SSE features // because it's important (for odd compatibility reasons) to be able to // turn it off explicitly while allowing SSE+ to be on. def FeatureMMX : SubtargetFeature<"mmx","X863DNowLevel", "MMX", "Enable MMX instructions">; def Feature3DNow : SubtargetFeature<"3dnow", "X863DNowLevel", "ThreeDNow", "Enable 3DNow! instructions", [FeatureMMX]>; def Feature3DNowA : SubtargetFeature<"3dnowa", "X863DNowLevel", "ThreeDNowA", "Enable 3DNow! Athlon instructions", [Feature3DNow]>; // All x86-64 hardware has SSE2, but we don't mark SSE2 as an implied // feature, because SSE2 can be disabled (e.g. for compiling OS kernels) // without disabling 64-bit mode. def Feature64Bit : SubtargetFeature<"64bit", "HasX86_64", "true", "Support 64-bit instructions", [FeatureCMOV]>; def FeatureCMPXCHG16B : SubtargetFeature<"cx16", "HasCmpxchg16b", "true", "64-bit with cmpxchg16b", [Feature64Bit]>; def FeatureSlowSHLD : SubtargetFeature<"slow-shld", "IsSHLDSlow", "true", "SHLD instruction is slow">; def FeatureSlowPMULLD : SubtargetFeature<"slow-pmulld", "IsPMULLDSlow", "true", "PMULLD instruction is slow">; // FIXME: This should not apply to CPUs that do not have SSE. def FeatureSlowUAMem16 : SubtargetFeature<"slow-unaligned-mem-16", "IsUAMem16Slow", "true", "Slow unaligned 16-byte memory access">; def FeatureSlowUAMem32 : SubtargetFeature<"slow-unaligned-mem-32", "IsUAMem32Slow", "true", "Slow unaligned 32-byte memory access">; def FeatureSSE4A : SubtargetFeature<"sse4a", "HasSSE4A", "true", "Support SSE 4a instructions", [FeatureSSE3]>; def FeatureAVX : SubtargetFeature<"avx", "X86SSELevel", "AVX", "Enable AVX instructions", [FeatureSSE42]>; def FeatureAVX2 : SubtargetFeature<"avx2", "X86SSELevel", "AVX2", "Enable AVX2 instructions", [FeatureAVX]>; def FeatureFMA : SubtargetFeature<"fma", "HasFMA", "true", "Enable three-operand fused multiple-add", [FeatureAVX]>; def FeatureF16C : SubtargetFeature<"f16c", "HasF16C", "true", "Support 16-bit floating point conversion instructions", [FeatureAVX]>; def FeatureAVX512 : SubtargetFeature<"avx512f", "X86SSELevel", "AVX512F", "Enable AVX-512 instructions", [FeatureAVX2, FeatureFMA, FeatureF16C]>; def FeatureERI : SubtargetFeature<"avx512er", "HasERI", "true", "Enable AVX-512 Exponential and Reciprocal Instructions", [FeatureAVX512]>; def FeatureCDI : SubtargetFeature<"avx512cd", "HasCDI", "true", "Enable AVX-512 Conflict Detection Instructions", [FeatureAVX512]>; def FeatureVPOPCNTDQ : SubtargetFeature<"avx512vpopcntdq", "HasVPOPCNTDQ", "true", "Enable AVX-512 Population Count Instructions", [FeatureAVX512]>; def FeaturePFI : SubtargetFeature<"avx512pf", "HasPFI", "true", "Enable AVX-512 PreFetch Instructions", [FeatureAVX512]>; def FeaturePREFETCHWT1 : SubtargetFeature<"prefetchwt1", "HasPREFETCHWT1", "true", "Prefetch with Intent to Write and T1 Hint">; def FeatureDQI : SubtargetFeature<"avx512dq", "HasDQI", "true", "Enable AVX-512 Doubleword and Quadword Instructions", [FeatureAVX512]>; def FeatureBWI : SubtargetFeature<"avx512bw", "HasBWI", "true", "Enable AVX-512 Byte and Word Instructions", [FeatureAVX512]>; def FeatureVLX : SubtargetFeature<"avx512vl", "HasVLX", "true", "Enable AVX-512 Vector Length eXtensions", [FeatureAVX512]>; def FeatureVBMI : SubtargetFeature<"avx512vbmi", "HasVBMI", "true", "Enable AVX-512 Vector Byte Manipulation Instructions", [FeatureBWI]>; def FeatureVBMI2 : SubtargetFeature<"avx512vbmi2", "HasVBMI2", "true", "Enable AVX-512 further Vector Byte Manipulation Instructions", [FeatureBWI]>; def FeatureIFMA : SubtargetFeature<"avx512ifma", "HasIFMA", "true", "Enable AVX-512 Integer Fused Multiple-Add", [FeatureAVX512]>; def FeaturePKU : SubtargetFeature<"pku", "HasPKU", "true", "Enable protection keys">; def FeatureVNNI : SubtargetFeature<"avx512vnni", "HasVNNI", "true", "Enable AVX-512 Vector Neural Network Instructions", [FeatureAVX512]>; def FeatureBITALG : SubtargetFeature<"avx512bitalg", "HasBITALG", "true", "Enable AVX-512 Bit Algorithms", [FeatureBWI]>; def FeaturePCLMUL : SubtargetFeature<"pclmul", "HasPCLMUL", "true", "Enable packed carry-less multiplication instructions", [FeatureSSE2]>; def FeatureGFNI : SubtargetFeature<"gfni", "HasGFNI", "true", "Enable Galois Field Arithmetic Instructions", [FeatureSSE2]>; def FeatureVPCLMULQDQ : SubtargetFeature<"vpclmulqdq", "HasVPCLMULQDQ", "true", "Enable vpclmulqdq instructions", [FeatureAVX, FeaturePCLMUL]>; def FeatureFMA4 : SubtargetFeature<"fma4", "HasFMA4", "true", "Enable four-operand fused multiple-add", [FeatureAVX, FeatureSSE4A]>; def FeatureXOP : SubtargetFeature<"xop", "HasXOP", "true", "Enable XOP instructions", [FeatureFMA4]>; def FeatureSSEUnalignedMem : SubtargetFeature<"sse-unaligned-mem", "HasSSEUnalignedMem", "true", "Allow unaligned memory operands with SSE instructions">; def FeatureAES : SubtargetFeature<"aes", "HasAES", "true", "Enable AES instructions", [FeatureSSE2]>; def FeatureVAES : SubtargetFeature<"vaes", "HasVAES", "true", "Promote selected AES instructions to AVX512/AVX registers", [FeatureAVX, FeatureAES]>; def FeatureTBM : SubtargetFeature<"tbm", "HasTBM", "true", "Enable TBM instructions">; def FeatureLWP : SubtargetFeature<"lwp", "HasLWP", "true", "Enable LWP instructions">; def FeatureMOVBE : SubtargetFeature<"movbe", "HasMOVBE", "true", "Support MOVBE instruction">; def FeatureRDRAND : SubtargetFeature<"rdrnd", "HasRDRAND", "true", "Support RDRAND instruction">; def FeatureFSGSBase : SubtargetFeature<"fsgsbase", "HasFSGSBase", "true", "Support FS/GS Base instructions">; def FeatureLZCNT : SubtargetFeature<"lzcnt", "HasLZCNT", "true", "Support LZCNT instruction">; def FeatureBMI : SubtargetFeature<"bmi", "HasBMI", "true", "Support BMI instructions">; def FeatureBMI2 : SubtargetFeature<"bmi2", "HasBMI2", "true", "Support BMI2 instructions">; def FeatureRTM : SubtargetFeature<"rtm", "HasRTM", "true", "Support RTM instructions">; def FeatureADX : SubtargetFeature<"adx", "HasADX", "true", "Support ADX instructions">; def FeatureSHA : SubtargetFeature<"sha", "HasSHA", "true", "Enable SHA instructions", [FeatureSSE2]>; def FeatureSHSTK : SubtargetFeature<"shstk", "HasSHSTK", "true", "Support CET Shadow-Stack instructions">; def FeatureIBT : SubtargetFeature<"ibt", "HasIBT", "true", "Support CET Indirect-Branch-Tracking instructions">; def FeaturePRFCHW : SubtargetFeature<"prfchw", "HasPRFCHW", "true", "Support PRFCHW instructions">; def FeatureRDSEED : SubtargetFeature<"rdseed", "HasRDSEED", "true", "Support RDSEED instruction">; def FeatureLAHFSAHF : SubtargetFeature<"sahf", "HasLAHFSAHF", "true", "Support LAHF and SAHF instructions">; def FeatureMWAITX : SubtargetFeature<"mwaitx", "HasMWAITX", "true", "Enable MONITORX/MWAITX timer functionality">; def FeatureCLZERO : SubtargetFeature<"clzero", "HasCLZERO", "true", "Enable Cache Line Zero">; def FeatureMPX : SubtargetFeature<"mpx", "HasMPX", "true", "Support MPX instructions">; def FeatureLEAForSP : SubtargetFeature<"lea-sp", "UseLeaForSP", "true", "Use LEA for adjusting the stack pointer">; def FeatureSlowDivide32 : SubtargetFeature<"idivl-to-divb", "HasSlowDivide32", "true", "Use 8-bit divide for positive values less than 256">; def FeatureSlowDivide64 : SubtargetFeature<"idivq-to-divl", "HasSlowDivide64", "true", "Use 32-bit divide for positive values less than 2^32">; def FeaturePadShortFunctions : SubtargetFeature<"pad-short-functions", "PadShortFunctions", "true", "Pad short functions">; def FeatureSGX : SubtargetFeature<"sgx", "HasSGX", "true", "Enable Software Guard Extensions">; def FeatureCLFLUSHOPT : SubtargetFeature<"clflushopt", "HasCLFLUSHOPT", "true", "Flush A Cache Line Optimized">; def FeatureCLWB : SubtargetFeature<"clwb", "HasCLWB", "true", "Cache Line Write Back">; // On some processors, instructions that implicitly take two memory operands are // slow. In practice, this means that CALL, PUSH, and POP with memory operands // should be avoided in favor of a MOV + register CALL/PUSH/POP. def FeatureSlowTwoMemOps : SubtargetFeature<"slow-two-mem-ops", "SlowTwoMemOps", "true", "Two memory operand instructions are slow">; def FeatureLEAUsesAG : SubtargetFeature<"lea-uses-ag", "LEAUsesAG", "true", "LEA instruction needs inputs at AG stage">; def FeatureSlowLEA : SubtargetFeature<"slow-lea", "SlowLEA", "true", "LEA instruction with certain arguments is slow">; def FeatureSlow3OpsLEA : SubtargetFeature<"slow-3ops-lea", "Slow3OpsLEA", "true", "LEA instruction with 3 ops or certain registers is slow">; def FeatureSlowIncDec : SubtargetFeature<"slow-incdec", "SlowIncDec", "true", "INC and DEC instructions are slower than ADD and SUB">; def FeatureSoftFloat : SubtargetFeature<"soft-float", "UseSoftFloat", "true", "Use software floating point features.">; // On recent X86 (port bound) processors, its preferable to combine to a single shuffle // using a variable mask over multiple fixed shuffles. def FeatureFastVariableShuffle : SubtargetFeature<"fast-variable-shuffle", "HasFastVariableShuffle", "true", "Shuffles with variable masks are fast">; // On some X86 processors, there is no performance hazard to writing only the // lower parts of a YMM or ZMM register without clearing the upper part. def FeatureFastPartialYMMorZMMWrite : SubtargetFeature<"fast-partial-ymm-or-zmm-write", "HasFastPartialYMMorZMMWrite", "true", "Partial writes to YMM/ZMM registers are fast">; // FeatureFastScalarFSQRT should be enabled if scalar FSQRT has shorter latency // than the corresponding NR code. FeatureFastVectorFSQRT should be enabled if // vector FSQRT has higher throughput than the corresponding NR code. // The idea is that throughput bound code is likely to be vectorized, so for // vectorized code we should care about the throughput of SQRT operations. // But if the code is scalar that probably means that the code has some kind of // dependency and we should care more about reducing the latency. def FeatureFastScalarFSQRT : SubtargetFeature<"fast-scalar-fsqrt", "HasFastScalarFSQRT", "true", "Scalar SQRT is fast (disable Newton-Raphson)">; def FeatureFastVectorFSQRT : SubtargetFeature<"fast-vector-fsqrt", "HasFastVectorFSQRT", "true", "Vector SQRT is fast (disable Newton-Raphson)">; // If lzcnt has equivalent latency/throughput to most simple integer ops, it can // be used to replace test/set sequences. def FeatureFastLZCNT : SubtargetFeature< "fast-lzcnt", "HasFastLZCNT", "true", "LZCNT instructions are as fast as most simple integer ops">; // Sandy Bridge and newer processors can use SHLD with the same source on both // inputs to implement rotate to avoid the partial flag update of the normal // rotate instructions. def FeatureFastSHLDRotate : SubtargetFeature< "fast-shld-rotate", "HasFastSHLDRotate", "true", "SHLD can be used as a faster rotate">; // Ivy Bridge and newer processors have enhanced REP MOVSB and STOSB (aka // "string operations"). See "REP String Enhancement" in the Intel Software // Development Manual. This feature essentially means that REP MOVSB will copy // using the largest available size instead of copying bytes one by one, making // it at least as fast as REPMOVS{W,D,Q}. def FeatureERMSB : SubtargetFeature< "ermsb", "HasERMSB", "true", "REP MOVS/STOS are fast">; // Sandy Bridge and newer processors have many instructions that can be // fused with conditional branches and pass through the CPU as a single // operation. def FeatureMacroFusion : SubtargetFeature<"macrofusion", "HasMacroFusion", "true", "Various instructions can be fused with conditional branches">; // Gather is available since Haswell (AVX2 set). So technically, we can // generate Gathers on all AVX2 processors. But the overhead on HSW is high. // Skylake Client processor has faster Gathers than HSW and performance is // similar to Skylake Server (AVX-512). def FeatureHasFastGather : SubtargetFeature<"fast-gather", "HasFastGather", "true", "Indicates if gather is reasonably fast.">; // Enable mitigation of some aspects of speculative execution related // vulnerabilities by removing speculatable indirect branches. This disables // jump-table formation, rewrites explicit `indirectbr` instructions into // `switch` instructions, and uses a special construct called a "retpoline" to // prevent speculation of the remaining indirect branches (indirect calls and // tail calls). def FeatureRetpoline : SubtargetFeature<"retpoline", "UseRetpoline", "true", "Remove speculation of indirect branches from the " "generated code, either by avoiding them entirely or " "lowering them with a speculation blocking construct.">; // Rely on external thunks for the emitted retpoline calls. This allows users // to provide their own custom thunk definitions in highly specialized // environments such as a kernel that does boot-time hot patching. def FeatureRetpolineExternalThunk : SubtargetFeature< "retpoline-external-thunk", "UseRetpolineExternalThunk", "true", "Enable retpoline, but with an externally provided thunk.", [FeatureRetpoline]>; //===----------------------------------------------------------------------===// // Register File Description //===----------------------------------------------------------------------===// include "X86RegisterInfo.td" include "X86RegisterBanks.td" //===----------------------------------------------------------------------===// // Instruction Descriptions //===----------------------------------------------------------------------===// include "X86Schedule.td" include "X86InstrInfo.td" def X86InstrInfo : InstrInfo; //===----------------------------------------------------------------------===// // X86 processors supported. //===----------------------------------------------------------------------===// include "X86ScheduleAtom.td" include "X86SchedSandyBridge.td" include "X86SchedHaswell.td" include "X86SchedBroadwell.td" include "X86ScheduleSLM.td" include "X86ScheduleZnver1.td" include "X86ScheduleBtVer2.td" include "X86SchedSkylakeClient.td" include "X86SchedSkylakeServer.td" def ProcIntelAtom : SubtargetFeature<"atom", "X86ProcFamily", "IntelAtom", "Intel Atom processors">; def ProcIntelSLM : SubtargetFeature<"slm", "X86ProcFamily", "IntelSLM", "Intel Silvermont processors">; def ProcIntelGLM : SubtargetFeature<"glm", "X86ProcFamily", "IntelGLM", "Intel Goldmont processors">; def ProcIntelHSW : SubtargetFeature<"haswell", "X86ProcFamily", "IntelHaswell", "Intel Haswell processors">; def ProcIntelBDW : SubtargetFeature<"broadwell", "X86ProcFamily", "IntelBroadwell", "Intel Broadwell processors">; def ProcIntelSKL : SubtargetFeature<"skylake", "X86ProcFamily", "IntelSkylake", "Intel Skylake processors">; def ProcIntelKNL : SubtargetFeature<"knl", "X86ProcFamily", "IntelKNL", "Intel Knights Landing processors">; def ProcIntelSKX : SubtargetFeature<"skx", "X86ProcFamily", "IntelSKX", "Intel Skylake Server processors">; def ProcIntelCNL : SubtargetFeature<"cannonlake", "X86ProcFamily", "IntelCannonlake", "Intel Cannonlake processors">; def ProcIntelICL : SubtargetFeature<"icelake", "X86ProcFamily", "IntelIcelake", "Intel Icelake processors">; class Proc Features> : ProcessorModel; def : Proc<"generic", [FeatureX87, FeatureSlowUAMem16]>; def : Proc<"i386", [FeatureX87, FeatureSlowUAMem16]>; def : Proc<"i486", [FeatureX87, FeatureSlowUAMem16]>; def : Proc<"i586", [FeatureX87, FeatureSlowUAMem16]>; def : Proc<"pentium", [FeatureX87, FeatureSlowUAMem16]>; def : Proc<"pentium-mmx", [FeatureX87, FeatureSlowUAMem16, FeatureMMX]>; foreach P = ["i686", "pentiumpro"] in { def : Proc; } def : Proc<"pentium2", [FeatureX87, FeatureSlowUAMem16, FeatureMMX, FeatureCMOV, FeatureFXSR]>; foreach P = ["pentium3", "pentium3m"] in { def : Proc; } // Enable the PostRAScheduler for SSE2 and SSE3 class cpus. // The intent is to enable it for pentium4 which is the current default // processor in a vanilla 32-bit clang compilation when no specific // architecture is specified. This generally gives a nice performance // increase on silvermont, with largely neutral behavior on other // contemporary large core processors. // pentium-m, pentium4m, prescott and nocona are included as a preventative // measure to avoid performance surprises, in case clang's default cpu // changes slightly. def : ProcessorModel<"pentium-m", GenericPostRAModel, [FeatureX87, FeatureSlowUAMem16, FeatureMMX, FeatureSSE2, FeatureFXSR]>; foreach P = ["pentium4", "pentium4m"] in { def : ProcessorModel; } // Intel Quark. def : Proc<"lakemont", []>; // Intel Core Duo. def : ProcessorModel<"yonah", SandyBridgeModel, [FeatureX87, FeatureSlowUAMem16, FeatureMMX, FeatureSSE3, FeatureFXSR]>; // NetBurst. def : ProcessorModel<"prescott", GenericPostRAModel, [FeatureX87, FeatureSlowUAMem16, FeatureMMX, FeatureSSE3, FeatureFXSR]>; def : ProcessorModel<"nocona", GenericPostRAModel, [ FeatureX87, FeatureSlowUAMem16, FeatureMMX, FeatureSSE3, FeatureFXSR, FeatureCMPXCHG16B ]>; // Intel Core 2 Solo/Duo. def : ProcessorModel<"core2", SandyBridgeModel, [ FeatureX87, FeatureSlowUAMem16, FeatureMMX, FeatureSSSE3, FeatureFXSR, FeatureCMPXCHG16B, FeatureLAHFSAHF, FeatureMacroFusion ]>; def : ProcessorModel<"penryn", SandyBridgeModel, [ FeatureX87, FeatureSlowUAMem16, FeatureMMX, FeatureSSE41, FeatureFXSR, FeatureCMPXCHG16B, FeatureLAHFSAHF, FeatureMacroFusion ]>; // Atom CPUs. class BonnellProc : ProcessorModel; def : BonnellProc<"bonnell">; def : BonnellProc<"atom">; // Pin the generic name to the baseline. class SilvermontProc : ProcessorModel; def : SilvermontProc<"silvermont">; def : SilvermontProc<"slm">; // Legacy alias. class GoldmontProc : ProcessorModel; def : GoldmontProc<"goldmont">; // "Arrandale" along with corei3 and corei5 class NehalemProc : ProcessorModel; def : NehalemProc<"nehalem">; def : NehalemProc<"corei7">; // Westmere is a similar machine to nehalem with some additional features. // Westmere is the corei3/i5/i7 path from nehalem to sandybridge class WestmereProc : ProcessorModel; def : WestmereProc<"westmere">; class ProcessorFeatures Inherited, list NewFeatures> { list Value = !listconcat(Inherited, NewFeatures); } class ProcModel ProcFeatures, list OtherFeatures> : ProcessorModel; // SSE is not listed here since llvm treats AVX as a reimplementation of SSE, // rather than a superset. def SNBFeatures : ProcessorFeatures<[], [ FeatureX87, FeatureMMX, FeatureAVX, FeatureFXSR, FeatureCMPXCHG16B, FeaturePOPCNT, FeatureAES, FeatureSlowDivide64, FeaturePCLMUL, FeatureXSAVE, FeatureXSAVEOPT, FeatureLAHFSAHF, FeatureSlow3OpsLEA, FeatureFastScalarFSQRT, FeatureFastSHLDRotate, FeatureSlowIncDec, FeatureMacroFusion ]>; class SandyBridgeProc : ProcModel; def : SandyBridgeProc<"sandybridge">; def : SandyBridgeProc<"corei7-avx">; // Legacy alias. def IVBFeatures : ProcessorFeatures; class IvyBridgeProc : ProcModel; def : IvyBridgeProc<"ivybridge">; def : IvyBridgeProc<"core-avx-i">; // Legacy alias. def HSWFeatures : ProcessorFeatures; class HaswellProc : ProcModel; def : HaswellProc<"haswell">; def : HaswellProc<"core-avx2">; // Legacy alias. def BDWFeatures : ProcessorFeatures; class BroadwellProc : ProcModel; def : BroadwellProc<"broadwell">; def SKLFeatures : ProcessorFeatures; class SkylakeClientProc : ProcModel; def : SkylakeClientProc<"skylake">; def KNLFeatures : ProcessorFeatures; // FIXME: define KNL model class KnightsLandingProc : ProcModel; def : KnightsLandingProc<"knl">; class KnightsMillProc : ProcModel; def : KnightsMillProc<"knm">; // TODO Add AVX5124FMAPS/AVX5124VNNIW features def SKXFeatures : ProcessorFeatures; class SkylakeServerProc : ProcModel; def : SkylakeServerProc<"skylake-avx512">; def : SkylakeServerProc<"skx">; // Legacy alias. def CNLFeatures : ProcessorFeatures; class CannonlakeProc : ProcModel; def : CannonlakeProc<"cannonlake">; def ICLFeatures : ProcessorFeatures; class IcelakeProc : ProcModel; def : IcelakeProc<"icelake">; // AMD CPUs. def : Proc<"k6", [FeatureX87, FeatureSlowUAMem16, FeatureMMX]>; def : Proc<"k6-2", [FeatureX87, FeatureSlowUAMem16, Feature3DNow]>; def : Proc<"k6-3", [FeatureX87, FeatureSlowUAMem16, Feature3DNow]>; foreach P = ["athlon", "athlon-tbird"] in { def : Proc; } foreach P = ["athlon-4", "athlon-xp", "athlon-mp"] in { def : Proc; } foreach P = ["k8", "opteron", "athlon64", "athlon-fx"] in { def : Proc; } foreach P = ["k8-sse3", "opteron-sse3", "athlon64-sse3"] in { def : Proc; } foreach P = ["amdfam10", "barcelona"] in { def : Proc; } // Bobcat def : Proc<"btver1", [ FeatureX87, FeatureMMX, FeatureSSSE3, FeatureSSE4A, FeatureFXSR, FeatureCMPXCHG16B, FeaturePRFCHW, FeatureLZCNT, FeaturePOPCNT, FeatureSlowSHLD, FeatureLAHFSAHF ]>; // Jaguar def : ProcessorModel<"btver2", BtVer2Model, [ FeatureX87, FeatureMMX, FeatureAVX, FeatureFXSR, FeatureSSE4A, FeatureCMPXCHG16B, FeaturePRFCHW, FeatureAES, FeaturePCLMUL, FeatureBMI, FeatureF16C, FeatureMOVBE, FeatureLZCNT, FeatureFastLZCNT, FeaturePOPCNT, FeatureXSAVE, FeatureXSAVEOPT, FeatureSlowSHLD, FeatureLAHFSAHF, FeatureFastPartialYMMorZMMWrite ]>; // Bulldozer def : Proc<"bdver1", [ FeatureX87, FeatureXOP, FeatureFMA4, FeatureCMPXCHG16B, FeatureAES, FeaturePRFCHW, FeaturePCLMUL, FeatureMMX, FeatureAVX, FeatureFXSR, FeatureSSE4A, FeatureLZCNT, FeaturePOPCNT, FeatureXSAVE, FeatureLWP, FeatureSlowSHLD, FeatureLAHFSAHF, FeatureMacroFusion ]>; // Piledriver def : Proc<"bdver2", [ FeatureX87, FeatureXOP, FeatureFMA4, FeatureCMPXCHG16B, FeatureAES, FeaturePRFCHW, FeaturePCLMUL, FeatureMMX, FeatureAVX, FeatureFXSR, FeatureSSE4A, FeatureF16C, FeatureLZCNT, FeaturePOPCNT, FeatureXSAVE, FeatureBMI, FeatureTBM, FeatureLWP, FeatureFMA, FeatureSlowSHLD, FeatureLAHFSAHF, FeatureMacroFusion ]>; // Steamroller def : Proc<"bdver3", [ FeatureX87, FeatureXOP, FeatureFMA4, FeatureCMPXCHG16B, FeatureAES, FeaturePRFCHW, FeaturePCLMUL, FeatureMMX, FeatureAVX, FeatureFXSR, FeatureSSE4A, FeatureF16C, FeatureLZCNT, FeaturePOPCNT, FeatureXSAVE, FeatureBMI, FeatureTBM, FeatureLWP, FeatureFMA, FeatureXSAVEOPT, FeatureSlowSHLD, FeatureFSGSBase, FeatureLAHFSAHF, FeatureMacroFusion ]>; // Excavator def : Proc<"bdver4", [ FeatureX87, FeatureMMX, FeatureAVX2, FeatureFXSR, FeatureXOP, FeatureFMA4, FeatureCMPXCHG16B, FeatureAES, FeaturePRFCHW, FeaturePCLMUL, FeatureF16C, FeatureLZCNT, FeaturePOPCNT, FeatureXSAVE, FeatureBMI, FeatureBMI2, FeatureTBM, FeatureLWP, FeatureFMA, FeatureXSAVEOPT, FeatureSlowSHLD, FeatureFSGSBase, FeatureLAHFSAHF, FeatureMWAITX, FeatureMacroFusion ]>; // Znver1 def: ProcessorModel<"znver1", Znver1Model, [ FeatureADX, FeatureAES, FeatureAVX2, FeatureBMI, FeatureBMI2, FeatureCLFLUSHOPT, FeatureCLZERO, FeatureCMPXCHG16B, FeatureF16C, FeatureFMA, FeatureFSGSBase, FeatureFXSR, FeatureFastLZCNT, FeatureLAHFSAHF, FeatureLZCNT, FeatureMacroFusion, FeatureMMX, FeatureMOVBE, FeatureMWAITX, FeaturePCLMUL, FeaturePOPCNT, FeaturePRFCHW, FeatureRDRAND, FeatureRDSEED, FeatureSHA, FeatureSSE4A, FeatureSlowSHLD, FeatureX87, FeatureXSAVE, FeatureXSAVEC, FeatureXSAVEOPT, FeatureXSAVES]>; def : Proc<"geode", [FeatureX87, FeatureSlowUAMem16, Feature3DNowA]>; def : Proc<"winchip-c6", [FeatureX87, FeatureSlowUAMem16, FeatureMMX]>; def : Proc<"winchip2", [FeatureX87, FeatureSlowUAMem16, Feature3DNow]>; def : Proc<"c3", [FeatureX87, FeatureSlowUAMem16, Feature3DNow]>; def : Proc<"c3-2", [FeatureX87, FeatureSlowUAMem16, FeatureMMX, FeatureSSE1, FeatureFXSR]>; // We also provide a generic 64-bit specific x86 processor model which tries to // be good for modern chips without enabling instruction set encodings past the // basic SSE2 and 64-bit ones. It disables slow things from any mainstream and // modern 64-bit x86 chip, and enables features that are generally beneficial. // // We currently use the Sandy Bridge model as the default scheduling model as // we use it across Nehalem, Westmere, Sandy Bridge, and Ivy Bridge which // covers a huge swath of x86 processors. If there are specific scheduling // knobs which need to be tuned differently for AMD chips, we might consider // forming a common base for them. def : ProcessorModel<"x86-64", SandyBridgeModel, [ FeatureX87, FeatureMMX, FeatureSSE2, FeatureFXSR, Feature64Bit, FeatureSlow3OpsLEA, FeatureSlowIncDec, FeatureMacroFusion ]>; //===----------------------------------------------------------------------===// // Calling Conventions //===----------------------------------------------------------------------===// include "X86CallingConv.td" //===----------------------------------------------------------------------===// // Assembly Parser //===----------------------------------------------------------------------===// def ATTAsmParserVariant : AsmParserVariant { int Variant = 0; // Variant name. string Name = "att"; // Discard comments in assembly strings. string CommentDelimiter = "#"; // Recognize hard coded registers. string RegisterPrefix = "%"; } def IntelAsmParserVariant : AsmParserVariant { int Variant = 1; // Variant name. string Name = "intel"; // Discard comments in assembly strings. string CommentDelimiter = ";"; // Recognize hard coded registers. string RegisterPrefix = ""; } //===----------------------------------------------------------------------===// // Assembly Printers //===----------------------------------------------------------------------===// // The X86 target supports two different syntaxes for emitting machine code. // This is controlled by the -x86-asm-syntax={att|intel} def ATTAsmWriter : AsmWriter { string AsmWriterClassName = "ATTInstPrinter"; int Variant = 0; } def IntelAsmWriter : AsmWriter { string AsmWriterClassName = "IntelInstPrinter"; int Variant = 1; } def X86 : Target { // Information about the instructions... let InstructionSet = X86InstrInfo; let AssemblyParserVariants = [ATTAsmParserVariant, IntelAsmParserVariant]; let AssemblyWriters = [ATTAsmWriter, IntelAsmWriter]; }