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https://github.com/c64scene-ar/llvm-6502.git
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8049ab15e4
This instruction is available on modern PPC64 CPUs, and is now used to improve the SINT_TO_FP lowering (by eliminating the need for the separate sign extension instruction and decreasing the amount of needed stack space). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178446 91177308-0d34-0410-b5e6-96231b3b80d8
202 lines
10 KiB
TableGen
202 lines
10 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: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5X", "">;
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def DirectivePwr6: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6", "">;
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def DirectivePwr6x: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6X", "">;
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def DirectivePwr7: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR7", "">;
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def Feature64Bit : SubtargetFeature<"64bit","Has64BitSupport", "true",
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"Enable 64-bit instructions">;
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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 FeatureAltivec : SubtargetFeature<"altivec","HasAltivec", "true",
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"Enable Altivec 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 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 FeatureISEL : SubtargetFeature<"isel","HasISEL", "true",
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"Enable the isel instruction">;
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def FeaturePOPCNTD : SubtargetFeature<"popcntd","HasPOPCNTD", "true",
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"Enable the popcnt[dw] instructions">;
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def FeatureLDBRX : SubtargetFeature<"ldbrx","HasLDBRX", "true",
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"Enable the ldbrx instruction">;
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def FeatureBookE : SubtargetFeature<"booke", "IsBookE", "true",
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"Enable Book E instructions">;
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def FeatureQPX : SubtargetFeature<"qpx","HasQPX", "true",
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"Enable QPX instructions">;
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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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// CMPB p6, p6x, p7 cmpb
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// DFP p6, p6x, p7 decimal floating-point instructions
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// FLT_CVT p7 fcfids, fcfidu, fcfidus, fcfiduz, fctiwuz
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// FRE p5 through p7 fre (vs. fres, available since p3)
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// FRSQRTES p5 through p7 frsqrtes (vs. frsqrte, available since p3)
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// LFIWZX p7 lfiwzx
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// POPCNTB p5 through p7 popcntb and related instructions
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// RECIP_PREC p6, p6x, p7 higher precision reciprocal estimates
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// VSX p7 vector-scalar instruction set
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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]>;
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def : Processor<"440", PPC440Itineraries, [Directive440, FeatureISEL,
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FeatureBookE]>;
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def : Processor<"450", PPC440Itineraries, [Directive440, FeatureISEL,
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FeatureBookE]>;
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def : Processor<"601", G3Itineraries, [Directive601]>;
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def : Processor<"602", G3Itineraries, [Directive602]>;
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def : Processor<"603", G3Itineraries, [Directive603]>;
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def : Processor<"603e", G3Itineraries, [Directive603]>;
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def : Processor<"603ev", G3Itineraries, [Directive603]>;
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def : Processor<"604", G3Itineraries, [Directive604]>;
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def : Processor<"604e", G3Itineraries, [Directive604]>;
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def : Processor<"620", G3Itineraries, [Directive620]>;
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def : Processor<"750", G4Itineraries, [Directive750]>;
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def : Processor<"g3", G3Itineraries, [Directive750]>;
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def : Processor<"7400", G4Itineraries, [Directive7400, FeatureAltivec]>;
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def : Processor<"g4", G4Itineraries, [Directive7400, FeatureAltivec]>;
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def : Processor<"7450", G4PlusItineraries, [Directive7400, FeatureAltivec]>;
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def : Processor<"g4+", G4PlusItineraries, [Directive7400, FeatureAltivec]>;
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def : Processor<"970", G5Itineraries,
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[Directive970, FeatureAltivec,
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FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
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Feature64Bit /*, Feature64BitRegs */]>;
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def : Processor<"g5", G5Itineraries,
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[Directive970, FeatureAltivec,
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FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
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Feature64Bit /*, Feature64BitRegs */]>;
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def : ProcessorModel<"e500mc", PPCE500mcModel,
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[DirectiveE500mc, FeatureMFOCRF,
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FeatureSTFIWX, FeatureBookE, FeatureISEL]>;
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def : ProcessorModel<"e5500", PPCE5500Model,
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[DirectiveE5500, FeatureMFOCRF, Feature64Bit,
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FeatureSTFIWX, FeatureBookE, FeatureISEL]>;
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def : Processor<"a2", PPCA2Itineraries,
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[DirectiveA2, FeatureBookE, FeatureMFOCRF,
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FeatureFSqrt, FeatureSTFIWX, FeatureLFIWAX,
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FeatureFPRND, FeatureISEL, FeaturePOPCNTD,
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FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */]>;
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def : Processor<"a2q", PPCA2Itineraries,
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[DirectiveA2, FeatureBookE, FeatureMFOCRF,
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FeatureFSqrt, FeatureSTFIWX, FeatureLFIWAX,
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FeatureFPRND, FeatureISEL, FeaturePOPCNTD,
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FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */,
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FeatureQPX]>;
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def : Processor<"pwr3", G5Itineraries,
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[DirectivePwr3, FeatureAltivec, FeatureMFOCRF,
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FeatureSTFIWX, Feature64Bit]>;
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def : Processor<"pwr4", G5Itineraries,
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[DirectivePwr4, FeatureAltivec, FeatureMFOCRF,
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FeatureFSqrt, FeatureSTFIWX, Feature64Bit]>;
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def : Processor<"pwr5", G5Itineraries,
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[DirectivePwr5, FeatureAltivec, FeatureMFOCRF,
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FeatureFSqrt, FeatureSTFIWX, Feature64Bit]>;
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def : Processor<"pwr5x", G5Itineraries,
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[DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
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FeatureFSqrt, FeatureSTFIWX, FeatureFPRND,
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Feature64Bit]>;
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def : Processor<"pwr6", G5Itineraries,
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[DirectivePwr6, FeatureAltivec,
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FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
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FeatureLFIWAX, FeatureFPRND, Feature64Bit
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/*, Feature64BitRegs */]>;
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def : Processor<"pwr6x", G5Itineraries,
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[DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
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FeatureFSqrt, FeatureSTFIWX, FeatureLFIWAX,
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FeatureFPRND, Feature64Bit]>;
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def : Processor<"pwr7", G5Itineraries,
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[DirectivePwr7, FeatureAltivec,
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FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
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FeatureLFIWAX, FeatureFPRND, FeatureISEL,
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FeaturePOPCNTD, FeatureLDBRX, Feature64Bit
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/*, Feature64BitRegs */]>;
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def : Processor<"ppc", G3Itineraries, [Directive32]>;
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def : Processor<"ppc64", G5Itineraries,
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[Directive64, FeatureAltivec,
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FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
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Feature64Bit /*, Feature64BitRegs */]>;
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//===----------------------------------------------------------------------===//
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// Calling Conventions
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//===----------------------------------------------------------------------===//
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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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}
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def PPCAsmWriter : AsmWriter {
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string AsmWriterClassName = "InstPrinter";
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bit isMCAsmWriter = 1;
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}
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def PPC : Target {
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// Information about the instructions.
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let InstructionSet = PPCInstrInfo;
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let AssemblyWriters = [PPCAsmWriter];
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}
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