llvm-6502/lib/Target/PowerPC/PPC.td
Hal Finkel 8049ab15e4 Add the PPC lfiwax instruction
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
2013-03-31 10:12:51 +00:00

202 lines
10 KiB
TableGen

//===-- PPC.td - Describe the PowerPC Target Machine -------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is the top level entry point for the PowerPC target.
//
//===----------------------------------------------------------------------===//
// Get the target-independent interfaces which we are implementing.
//
include "llvm/Target/Target.td"
//===----------------------------------------------------------------------===//
// PowerPC Subtarget features.
//
//===----------------------------------------------------------------------===//
// CPU Directives //
//===----------------------------------------------------------------------===//
def Directive440 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_440", "">;
def Directive601 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_601", "">;
def Directive602 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_602", "">;
def Directive603 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
def Directive604 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
def Directive620 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_603", "">;
def Directive7400: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_7400", "">;
def Directive750 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_750", "">;
def Directive970 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_970", "">;
def Directive32 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_32", "">;
def Directive64 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_64", "">;
def DirectiveA2 : SubtargetFeature<"", "DarwinDirective", "PPC::DIR_A2", "">;
def DirectiveE500mc : SubtargetFeature<"", "DarwinDirective",
"PPC::DIR_E500mc", "">;
def DirectiveE5500 : SubtargetFeature<"", "DarwinDirective",
"PPC::DIR_E5500", "">;
def DirectivePwr3: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR3", "">;
def DirectivePwr4: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR4", "">;
def DirectivePwr5: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5", "">;
def DirectivePwr5x: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR5X", "">;
def DirectivePwr6: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6", "">;
def DirectivePwr6x: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6X", "">;
def DirectivePwr7: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR7", "">;
def Feature64Bit : SubtargetFeature<"64bit","Has64BitSupport", "true",
"Enable 64-bit instructions">;
def Feature64BitRegs : SubtargetFeature<"64bitregs","Use64BitRegs", "true",
"Enable 64-bit registers usage for ppc32 [beta]">;
def FeatureAltivec : SubtargetFeature<"altivec","HasAltivec", "true",
"Enable Altivec instructions">;
def FeatureMFOCRF : SubtargetFeature<"mfocrf","HasMFOCRF", "true",
"Enable the MFOCRF instruction">;
def FeatureFSqrt : SubtargetFeature<"fsqrt","HasFSQRT", "true",
"Enable the fsqrt instruction">;
def FeatureSTFIWX : SubtargetFeature<"stfiwx","HasSTFIWX", "true",
"Enable the stfiwx instruction">;
def FeatureLFIWAX : SubtargetFeature<"lfiwax","HasLFIWAX", "true",
"Enable the lfiwax instruction">;
def FeatureFPRND : SubtargetFeature<"fprnd", "HasFPRND", "true",
"Enable the fri[mnpz] instructions">;
def FeatureISEL : SubtargetFeature<"isel","HasISEL", "true",
"Enable the isel instruction">;
def FeaturePOPCNTD : SubtargetFeature<"popcntd","HasPOPCNTD", "true",
"Enable the popcnt[dw] instructions">;
def FeatureLDBRX : SubtargetFeature<"ldbrx","HasLDBRX", "true",
"Enable the ldbrx instruction">;
def FeatureBookE : SubtargetFeature<"booke", "IsBookE", "true",
"Enable Book E instructions">;
def FeatureQPX : SubtargetFeature<"qpx","HasQPX", "true",
"Enable QPX instructions">;
// Note: Future features to add when support is extended to more
// recent ISA levels:
//
// CMPB p6, p6x, p7 cmpb
// DFP p6, p6x, p7 decimal floating-point instructions
// FLT_CVT p7 fcfids, fcfidu, fcfidus, fcfiduz, fctiwuz
// FRE p5 through p7 fre (vs. fres, available since p3)
// FRSQRTES p5 through p7 frsqrtes (vs. frsqrte, available since p3)
// LFIWZX p7 lfiwzx
// POPCNTB p5 through p7 popcntb and related instructions
// RECIP_PREC p6, p6x, p7 higher precision reciprocal estimates
// VSX p7 vector-scalar instruction set
//===----------------------------------------------------------------------===//
// Register File Description
//===----------------------------------------------------------------------===//
include "PPCRegisterInfo.td"
include "PPCSchedule.td"
include "PPCInstrInfo.td"
//===----------------------------------------------------------------------===//
// PowerPC processors supported.
//
def : Processor<"generic", G3Itineraries, [Directive32]>;
def : Processor<"440", PPC440Itineraries, [Directive440, FeatureISEL,
FeatureBookE]>;
def : Processor<"450", PPC440Itineraries, [Directive440, FeatureISEL,
FeatureBookE]>;
def : Processor<"601", G3Itineraries, [Directive601]>;
def : Processor<"602", G3Itineraries, [Directive602]>;
def : Processor<"603", G3Itineraries, [Directive603]>;
def : Processor<"603e", G3Itineraries, [Directive603]>;
def : Processor<"603ev", G3Itineraries, [Directive603]>;
def : Processor<"604", G3Itineraries, [Directive604]>;
def : Processor<"604e", G3Itineraries, [Directive604]>;
def : Processor<"620", G3Itineraries, [Directive620]>;
def : Processor<"750", G4Itineraries, [Directive750]>;
def : Processor<"g3", G3Itineraries, [Directive750]>;
def : Processor<"7400", G4Itineraries, [Directive7400, FeatureAltivec]>;
def : Processor<"g4", G4Itineraries, [Directive7400, FeatureAltivec]>;
def : Processor<"7450", G4PlusItineraries, [Directive7400, FeatureAltivec]>;
def : Processor<"g4+", G4PlusItineraries, [Directive7400, FeatureAltivec]>;
def : Processor<"970", G5Itineraries,
[Directive970, FeatureAltivec,
FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
Feature64Bit /*, Feature64BitRegs */]>;
def : Processor<"g5", G5Itineraries,
[Directive970, FeatureAltivec,
FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
Feature64Bit /*, Feature64BitRegs */]>;
def : ProcessorModel<"e500mc", PPCE500mcModel,
[DirectiveE500mc, FeatureMFOCRF,
FeatureSTFIWX, FeatureBookE, FeatureISEL]>;
def : ProcessorModel<"e5500", PPCE5500Model,
[DirectiveE5500, FeatureMFOCRF, Feature64Bit,
FeatureSTFIWX, FeatureBookE, FeatureISEL]>;
def : Processor<"a2", PPCA2Itineraries,
[DirectiveA2, FeatureBookE, FeatureMFOCRF,
FeatureFSqrt, FeatureSTFIWX, FeatureLFIWAX,
FeatureFPRND, FeatureISEL, FeaturePOPCNTD,
FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */]>;
def : Processor<"a2q", PPCA2Itineraries,
[DirectiveA2, FeatureBookE, FeatureMFOCRF,
FeatureFSqrt, FeatureSTFIWX, FeatureLFIWAX,
FeatureFPRND, FeatureISEL, FeaturePOPCNTD,
FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */,
FeatureQPX]>;
def : Processor<"pwr3", G5Itineraries,
[DirectivePwr3, FeatureAltivec, FeatureMFOCRF,
FeatureSTFIWX, Feature64Bit]>;
def : Processor<"pwr4", G5Itineraries,
[DirectivePwr4, FeatureAltivec, FeatureMFOCRF,
FeatureFSqrt, FeatureSTFIWX, Feature64Bit]>;
def : Processor<"pwr5", G5Itineraries,
[DirectivePwr5, FeatureAltivec, FeatureMFOCRF,
FeatureFSqrt, FeatureSTFIWX, Feature64Bit]>;
def : Processor<"pwr5x", G5Itineraries,
[DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
FeatureFSqrt, FeatureSTFIWX, FeatureFPRND,
Feature64Bit]>;
def : Processor<"pwr6", G5Itineraries,
[DirectivePwr6, FeatureAltivec,
FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
FeatureLFIWAX, FeatureFPRND, Feature64Bit
/*, Feature64BitRegs */]>;
def : Processor<"pwr6x", G5Itineraries,
[DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
FeatureFSqrt, FeatureSTFIWX, FeatureLFIWAX,
FeatureFPRND, Feature64Bit]>;
def : Processor<"pwr7", G5Itineraries,
[DirectivePwr7, FeatureAltivec,
FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
FeatureLFIWAX, FeatureFPRND, FeatureISEL,
FeaturePOPCNTD, FeatureLDBRX, Feature64Bit
/*, Feature64BitRegs */]>;
def : Processor<"ppc", G3Itineraries, [Directive32]>;
def : Processor<"ppc64", G5Itineraries,
[Directive64, FeatureAltivec,
FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX,
Feature64Bit /*, Feature64BitRegs */]>;
//===----------------------------------------------------------------------===//
// Calling Conventions
//===----------------------------------------------------------------------===//
include "PPCCallingConv.td"
def PPCInstrInfo : InstrInfo {
let isLittleEndianEncoding = 1;
}
def PPCAsmWriter : AsmWriter {
string AsmWriterClassName = "InstPrinter";
bit isMCAsmWriter = 1;
}
def PPC : Target {
// Information about the instructions.
let InstructionSet = PPCInstrInfo;
let AssemblyWriters = [PPCAsmWriter];
}