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816d3f4f3f
There is currently no codegen for Power9 that depends on the directive so this is NFC for now but will be important in the future. This was missed in r268950 so I'm adding it now. llvm-svn: 281473
454 lines
24 KiB
TableGen
454 lines
24 KiB
TableGen
//===-- PPC.td - Describe the PowerPC Target Machine -------*- tablegen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This is the top level entry point for the PowerPC target.
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//
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//===----------------------------------------------------------------------===//
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// Get the target-independent interfaces which we are implementing.
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//
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include "llvm/Target/Target.td"
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//===----------------------------------------------------------------------===//
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// PowerPC Subtarget features.
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//
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//===----------------------------------------------------------------------===//
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// CPU Directives //
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//===----------------------------------------------------------------------===//
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def Directive440 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_440", "">;
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def Directive601 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_601", "">;
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def Directive602 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_602", "">;
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def Directive603 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
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def Directive604 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
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def Directive620 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
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def Directive7400: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_7400", "">;
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def Directive750 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_750", "">;
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def Directive970 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_970", "">;
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def Directive32 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_32", "">;
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def Directive64 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_64", "">;
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def DirectiveA2 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_A2", "">;
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def DirectiveE500mc : SubtargetFeature<"", "DarwinDirective",
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"PPC::DIR_E500mc", "">;
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def DirectiveE5500 : SubtargetFeature<"", "DarwinDirective",
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"PPC::DIR_E5500", "">;
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def DirectivePwr3: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR3", "">;
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def DirectivePwr4: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR4", "">;
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def DirectivePwr5: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5", "">;
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def DirectivePwr5x
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: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5X", "">;
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def DirectivePwr6: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6", "">;
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def DirectivePwr6x
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: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6X", "">;
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def DirectivePwr7: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR7", "">;
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def DirectivePwr8: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR8", "">;
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def DirectivePwr9: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR9", "">;
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def Feature64Bit : SubtargetFeature<"64bit","Has64BitSupport", "true",
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"Enable 64-bit instructions">;
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def FeatureSoftFloat : SubtargetFeature<"soft-float", "UseSoftFloat", "true",
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"Use software emulation for floating point">;
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def Feature64BitRegs : SubtargetFeature<"64bitregs","Use64BitRegs", "true",
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"Enable 64-bit registers usage for ppc32 [beta]">;
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def FeatureCRBits : SubtargetFeature<"crbits", "UseCRBits", "true",
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"Use condition-register bits individually">;
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def FeatureAltivec : SubtargetFeature<"altivec","HasAltivec", "true",
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"Enable Altivec instructions">;
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def FeatureSPE : SubtargetFeature<"spe","HasSPE", "true",
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"Enable SPE instructions">;
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def FeatureMFOCRF : SubtargetFeature<"mfocrf","HasMFOCRF", "true",
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"Enable the MFOCRF instruction">;
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def FeatureFSqrt : SubtargetFeature<"fsqrt","HasFSQRT", "true",
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"Enable the fsqrt instruction">;
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def FeatureFCPSGN : SubtargetFeature<"fcpsgn", "HasFCPSGN", "true",
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"Enable the fcpsgn instruction">;
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def FeatureFRE : SubtargetFeature<"fre", "HasFRE", "true",
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"Enable the fre instruction">;
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def FeatureFRES : SubtargetFeature<"fres", "HasFRES", "true",
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"Enable the fres instruction">;
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def FeatureFRSQRTE : SubtargetFeature<"frsqrte", "HasFRSQRTE", "true",
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"Enable the frsqrte instruction">;
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def FeatureFRSQRTES : SubtargetFeature<"frsqrtes", "HasFRSQRTES", "true",
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"Enable the frsqrtes instruction">;
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def FeatureRecipPrec : SubtargetFeature<"recipprec", "HasRecipPrec", "true",
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"Assume higher precision reciprocal estimates">;
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def FeatureSTFIWX : SubtargetFeature<"stfiwx","HasSTFIWX", "true",
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"Enable the stfiwx instruction">;
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def FeatureLFIWAX : SubtargetFeature<"lfiwax","HasLFIWAX", "true",
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"Enable the lfiwax instruction">;
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def FeatureFPRND : SubtargetFeature<"fprnd", "HasFPRND", "true",
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"Enable the fri[mnpz] instructions">;
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def FeatureFPCVT : SubtargetFeature<"fpcvt", "HasFPCVT", "true",
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"Enable fc[ft]* (unsigned and single-precision) and lfiwzx instructions">;
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def FeatureISEL : SubtargetFeature<"isel","HasISEL", "true",
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"Enable the isel instruction">;
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def FeatureBPERMD : SubtargetFeature<"bpermd", "HasBPERMD", "true",
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"Enable the bpermd instruction">;
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def FeatureExtDiv : SubtargetFeature<"extdiv", "HasExtDiv", "true",
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"Enable extended divide instructions">;
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def FeatureLDBRX : SubtargetFeature<"ldbrx","HasLDBRX", "true",
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"Enable the ldbrx instruction">;
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def FeatureCMPB : SubtargetFeature<"cmpb", "HasCMPB", "true",
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"Enable the cmpb instruction">;
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def FeatureICBT : SubtargetFeature<"icbt","HasICBT", "true",
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"Enable icbt instruction">;
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def FeatureBookE : SubtargetFeature<"booke", "IsBookE", "true",
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"Enable Book E instructions",
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[FeatureICBT]>;
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def FeatureMSYNC : SubtargetFeature<"msync", "HasOnlyMSYNC", "true",
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"Has only the msync instruction instead of sync",
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[FeatureBookE]>;
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def FeatureE500 : SubtargetFeature<"e500", "IsE500", "true",
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"Enable E500/E500mc instructions">;
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def FeaturePPC4xx : SubtargetFeature<"ppc4xx", "IsPPC4xx", "true",
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"Enable PPC 4xx instructions">;
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def FeaturePPC6xx : SubtargetFeature<"ppc6xx", "IsPPC6xx", "true",
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"Enable PPC 6xx instructions">;
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def FeatureQPX : SubtargetFeature<"qpx","HasQPX", "true",
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"Enable QPX instructions">;
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def FeatureVSX : SubtargetFeature<"vsx","HasVSX", "true",
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"Enable VSX instructions",
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[FeatureAltivec]>;
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def FeatureP8Altivec : SubtargetFeature<"power8-altivec", "HasP8Altivec", "true",
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"Enable POWER8 Altivec instructions",
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[FeatureAltivec]>;
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def FeatureP8Crypto : SubtargetFeature<"crypto", "HasP8Crypto", "true",
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"Enable POWER8 Crypto instructions",
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[FeatureP8Altivec]>;
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def FeatureP8Vector : SubtargetFeature<"power8-vector", "HasP8Vector", "true",
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"Enable POWER8 vector instructions",
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[FeatureVSX, FeatureP8Altivec]>;
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def FeatureDirectMove :
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SubtargetFeature<"direct-move", "HasDirectMove", "true",
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"Enable Power8 direct move instructions",
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[FeatureVSX]>;
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def FeaturePartwordAtomic : SubtargetFeature<"partword-atomics",
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"HasPartwordAtomics", "true",
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"Enable l[bh]arx and st[bh]cx.">;
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def FeatureInvariantFunctionDescriptors :
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SubtargetFeature<"invariant-function-descriptors",
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"HasInvariantFunctionDescriptors", "true",
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"Assume function descriptors are invariant">;
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def FeatureLongCall : SubtargetFeature<"longcall", "UseLongCalls", "true",
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"Always use indirect calls">;
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def FeatureHTM : SubtargetFeature<"htm", "HasHTM", "true",
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"Enable Hardware Transactional Memory instructions">;
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def FeatureMFTB : SubtargetFeature<"", "FeatureMFTB", "true",
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"Implement mftb using the mfspr instruction">;
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def FeatureFusion : SubtargetFeature<"fusion", "HasFusion", "true",
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"Target supports add/load integer fusion.">;
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def FeatureFloat128 :
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SubtargetFeature<"float128", "HasFloat128", "true",
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"Enable the __float128 data type for IEEE-754R Binary128.",
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[FeatureVSX]>;
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def FeaturePOPCNTD : SubtargetFeature<"popcntd","HasPOPCNTD",
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"POPCNTD_Fast",
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"Enable the popcnt[dw] instructions">;
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// Note that for the a2/a2q processor models we should not use popcnt[dw] by
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// default. These processors do support the instructions, but they're
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// microcoded, and the software emulation is about twice as fast.
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def FeatureSlowPOPCNTD : SubtargetFeature<"slow-popcntd","HasPOPCNTD",
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"POPCNTD_Slow",
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"Has slow popcnt[dw] instructions">;
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def DeprecatedDST : SubtargetFeature<"", "DeprecatedDST", "true",
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"Treat vector data stream cache control instructions as deprecated">;
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def FeatureISA3_0 : SubtargetFeature<"isa-v30-instructions", "IsISA3_0",
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"true",
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"Enable instructions added in ISA 3.0.">;
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def FeatureP9Altivec : SubtargetFeature<"power9-altivec", "HasP9Altivec", "true",
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"Enable POWER9 Altivec instructions",
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[FeatureISA3_0, FeatureP8Altivec]>;
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def FeatureP9Vector : SubtargetFeature<"power9-vector", "HasP9Vector", "true",
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"Enable POWER9 vector instructions",
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[FeatureISA3_0, FeatureP8Vector,
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FeatureP9Altivec]>;
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// Since new processors generally contain a superset of features of those that
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// came before them, the idea is to make implementations of new processors
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// less error prone and easier to read.
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// Namely:
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// list<SubtargetFeature> Power8FeatureList = ...
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// list<SubtargetFeature> FutureProcessorSpecificFeatureList =
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// [ features that Power8 does not support ]
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// list<SubtargetFeature> FutureProcessorFeatureList =
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// !listconcat(Power8FeatureList, FutureProcessorSpecificFeatureList)
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// Makes it explicit and obvious what is new in FutureProcesor vs. Power8 as
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// well as providing a single point of definition if the feature set will be
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// used elsewhere.
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def ProcessorFeatures {
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list<SubtargetFeature> Power7FeatureList =
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[DirectivePwr7, FeatureAltivec, FeatureVSX,
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FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
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FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
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FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
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FeatureFPRND, FeatureFPCVT, FeatureISEL,
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FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX,
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Feature64Bit /*, Feature64BitRegs */,
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FeatureBPERMD, FeatureExtDiv,
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FeatureMFTB, DeprecatedDST];
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list<SubtargetFeature> Power8SpecificFeatures =
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[DirectivePwr8, FeatureP8Altivec, FeatureP8Vector, FeatureP8Crypto,
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FeatureHTM, FeatureDirectMove, FeatureICBT, FeaturePartwordAtomic,
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FeatureFusion];
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list<SubtargetFeature> Power8FeatureList =
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!listconcat(Power7FeatureList, Power8SpecificFeatures);
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list<SubtargetFeature> Power9SpecificFeatures =
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[DirectivePwr9, FeatureP9Altivec, FeatureP9Vector, FeatureISA3_0];
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list<SubtargetFeature> Power9FeatureList =
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!listconcat(Power8FeatureList, Power9SpecificFeatures);
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}
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// Note: Future features to add when support is extended to more
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// recent ISA levels:
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//
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// DFP p6, p6x, p7 decimal floating-point instructions
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// POPCNTB p5 through p7 popcntb and related instructions
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//===----------------------------------------------------------------------===//
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// Classes used for relation maps.
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//===----------------------------------------------------------------------===//
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// RecFormRel - Filter class used to relate non-record-form instructions with
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// their record-form variants.
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class RecFormRel;
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// AltVSXFMARel - Filter class used to relate the primary addend-killing VSX
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// FMA instruction forms with their corresponding factor-killing forms.
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class AltVSXFMARel {
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bit IsVSXFMAAlt = 0;
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}
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//===----------------------------------------------------------------------===//
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// Relation Map Definitions.
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//===----------------------------------------------------------------------===//
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def getRecordFormOpcode : InstrMapping {
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let FilterClass = "RecFormRel";
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// Instructions with the same BaseName and Interpretation64Bit values
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// form a row.
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let RowFields = ["BaseName", "Interpretation64Bit"];
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// Instructions with the same RC value form a column.
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let ColFields = ["RC"];
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// The key column are the non-record-form instructions.
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let KeyCol = ["0"];
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// Value columns RC=1
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let ValueCols = [["1"]];
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}
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def getNonRecordFormOpcode : InstrMapping {
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let FilterClass = "RecFormRel";
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// Instructions with the same BaseName and Interpretation64Bit values
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// form a row.
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let RowFields = ["BaseName", "Interpretation64Bit"];
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// Instructions with the same RC value form a column.
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let ColFields = ["RC"];
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// The key column are the record-form instructions.
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let KeyCol = ["1"];
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// Value columns are RC=0
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let ValueCols = [["0"]];
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}
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def getAltVSXFMAOpcode : InstrMapping {
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let FilterClass = "AltVSXFMARel";
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// Instructions with the same BaseName and Interpretation64Bit values
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// form a row.
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let RowFields = ["BaseName"];
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// Instructions with the same RC value form a column.
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let ColFields = ["IsVSXFMAAlt"];
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// The key column are the (default) addend-killing instructions.
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let KeyCol = ["0"];
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// Value columns IsVSXFMAAlt=1
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let ValueCols = [["1"]];
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}
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//===----------------------------------------------------------------------===//
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// Register File Description
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//===----------------------------------------------------------------------===//
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include "PPCRegisterInfo.td"
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include "PPCSchedule.td"
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include "PPCInstrInfo.td"
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//===----------------------------------------------------------------------===//
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// PowerPC processors supported.
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//
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def : Processor<"generic", G3Itineraries, [Directive32, FeatureMFTB]>;
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def : ProcessorModel<"440", PPC440Model, [Directive440, FeatureISEL,
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FeatureFRES, FeatureFRSQRTE,
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FeatureICBT, FeatureBookE,
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FeatureMSYNC, FeatureMFTB]>;
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def : ProcessorModel<"450", PPC440Model, [Directive440, FeatureISEL,
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FeatureFRES, FeatureFRSQRTE,
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FeatureICBT, FeatureBookE,
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FeatureMSYNC, FeatureMFTB]>;
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def : Processor<"601", G3Itineraries, [Directive601]>;
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def : Processor<"602", G3Itineraries, [Directive602,
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FeatureMFTB]>;
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def : Processor<"603", G3Itineraries, [Directive603,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"603e", G3Itineraries, [Directive603,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"603ev", G3Itineraries, [Directive603,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"604", G3Itineraries, [Directive604,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"604e", G3Itineraries, [Directive604,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"620", G3Itineraries, [Directive620,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"750", G4Itineraries, [Directive750,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"g3", G3Itineraries, [Directive750,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"7400", G4Itineraries, [Directive7400, FeatureAltivec,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"g4", G4Itineraries, [Directive7400, FeatureAltivec,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"7450", G4PlusItineraries, [Directive7400, FeatureAltivec,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : Processor<"g4+", G4PlusItineraries, [Directive7400, FeatureAltivec,
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FeatureFRES, FeatureFRSQRTE,
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FeatureMFTB]>;
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def : ProcessorModel<"970", G5Model,
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[Directive970, FeatureAltivec,
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FeatureMFOCRF, FeatureFSqrt,
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FeatureFRES, FeatureFRSQRTE, FeatureSTFIWX,
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Feature64Bit /*, Feature64BitRegs */,
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FeatureMFTB]>;
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def : ProcessorModel<"g5", G5Model,
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[Directive970, FeatureAltivec,
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FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
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FeatureFRES, FeatureFRSQRTE,
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Feature64Bit /*, Feature64BitRegs */,
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FeatureMFTB, DeprecatedDST]>;
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def : ProcessorModel<"e500mc", PPCE500mcModel,
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[DirectiveE500mc,
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FeatureSTFIWX, FeatureICBT, FeatureBookE,
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FeatureISEL, FeatureMFTB]>;
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def : ProcessorModel<"e5500", PPCE5500Model,
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[DirectiveE5500, FeatureMFOCRF, Feature64Bit,
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FeatureSTFIWX, FeatureICBT, FeatureBookE,
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FeatureISEL, FeatureMFTB]>;
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def : ProcessorModel<"a2", PPCA2Model,
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[DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF,
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FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
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FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
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FeatureSTFIWX, FeatureLFIWAX,
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FeatureFPRND, FeatureFPCVT, FeatureISEL,
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FeatureSlowPOPCNTD, FeatureCMPB, FeatureLDBRX,
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Feature64Bit /*, Feature64BitRegs */, FeatureMFTB]>;
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def : ProcessorModel<"a2q", PPCA2Model,
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[DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF,
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FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
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FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
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FeatureSTFIWX, FeatureLFIWAX,
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FeatureFPRND, FeatureFPCVT, FeatureISEL,
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FeatureSlowPOPCNTD, FeatureCMPB, FeatureLDBRX,
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Feature64Bit /*, Feature64BitRegs */, FeatureQPX,
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FeatureMFTB]>;
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def : ProcessorModel<"pwr3", G5Model,
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[DirectivePwr3, FeatureAltivec,
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FeatureFRES, FeatureFRSQRTE, FeatureMFOCRF,
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FeatureSTFIWX, Feature64Bit]>;
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def : ProcessorModel<"pwr4", G5Model,
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[DirectivePwr4, FeatureAltivec, FeatureMFOCRF,
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FeatureFSqrt, FeatureFRES, FeatureFRSQRTE,
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FeatureSTFIWX, Feature64Bit, FeatureMFTB]>;
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def : ProcessorModel<"pwr5", G5Model,
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[DirectivePwr5, FeatureAltivec, FeatureMFOCRF,
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FeatureFSqrt, FeatureFRE, FeatureFRES,
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FeatureFRSQRTE, FeatureFRSQRTES,
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FeatureSTFIWX, Feature64Bit,
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FeatureMFTB, DeprecatedDST]>;
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def : ProcessorModel<"pwr5x", G5Model,
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[DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
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FeatureFSqrt, FeatureFRE, FeatureFRES,
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FeatureFRSQRTE, FeatureFRSQRTES,
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FeatureSTFIWX, FeatureFPRND, Feature64Bit,
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FeatureMFTB, DeprecatedDST]>;
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|
def : ProcessorModel<"pwr6", G5Model,
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|
[DirectivePwr6, FeatureAltivec,
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FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
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|
FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
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|
FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB,
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|
FeatureFPRND, Feature64Bit /*, Feature64BitRegs */,
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|
FeatureMFTB, DeprecatedDST]>;
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|
def : ProcessorModel<"pwr6x", G5Model,
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|
[DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
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|
FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
|
|
FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
|
|
FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB,
|
|
FeatureFPRND, Feature64Bit,
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|
FeatureMFTB, DeprecatedDST]>;
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|
def : ProcessorModel<"pwr7", P7Model, ProcessorFeatures.Power7FeatureList>;
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|
def : ProcessorModel<"pwr8", P8Model, ProcessorFeatures.Power8FeatureList>;
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|
// FIXME: Same as P8 until the POWER9 scheduling info is available
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|
def : ProcessorModel<"pwr9", P8Model, ProcessorFeatures.Power9FeatureList>;
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|
def : Processor<"ppc", G3Itineraries, [Directive32, FeatureMFTB]>;
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|
def : ProcessorModel<"ppc64", G5Model,
|
|
[Directive64, FeatureAltivec,
|
|
FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
|
|
FeatureFRSQRTE, FeatureSTFIWX,
|
|
Feature64Bit /*, Feature64BitRegs */,
|
|
FeatureMFTB]>;
|
|
def : ProcessorModel<"ppc64le", P8Model, ProcessorFeatures.Power8FeatureList>;
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|
|
|
//===----------------------------------------------------------------------===//
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|
// Calling Conventions
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|
//===----------------------------------------------------------------------===//
|
|
|
|
include "PPCCallingConv.td"
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|
|
|
def PPCInstrInfo : InstrInfo {
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|
let isLittleEndianEncoding = 1;
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|
|
|
// FIXME: Unset this when no longer needed!
|
|
let decodePositionallyEncodedOperands = 1;
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|
|
|
let noNamedPositionallyEncodedOperands = 1;
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|
}
|
|
|
|
def PPCAsmParser : AsmParser {
|
|
let ShouldEmitMatchRegisterName = 0;
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|
}
|
|
|
|
def PPCAsmParserVariant : AsmParserVariant {
|
|
int Variant = 0;
|
|
|
|
// We do not use hard coded registers in asm strings. However, some
|
|
// InstAlias definitions use immediate literals. Set RegisterPrefix
|
|
// so that those are not misinterpreted as registers.
|
|
string RegisterPrefix = "%";
|
|
string BreakCharacters = ".";
|
|
}
|
|
|
|
def PPC : Target {
|
|
// Information about the instructions.
|
|
let InstructionSet = PPCInstrInfo;
|
|
|
|
let AssemblyParsers = [PPCAsmParser];
|
|
let AssemblyParserVariants = [PPCAsmParserVariant];
|
|
}
|