//===----------------------------------------------------------------------===//
// PowerPC Subtarget features.
//
-
+
//===----------------------------------------------------------------------===//
// CPU Directives //
//===----------------------------------------------------------------------===//
def DirectivePwr6: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6", "">;
def DirectivePwr6x: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR6X", "">;
def DirectivePwr7: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR7", "">;
+def DirectivePwr8: SubtargetFeature<"", "DarwinDirective", "PPC::DIR_PWR8", "">;
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 FeatureCRBits : SubtargetFeature<"crbits", "UseCRBits", "true",
+ "Use condition-register bits individually">;
def FeatureAltivec : SubtargetFeature<"altivec","HasAltivec", "true",
"Enable Altivec instructions">;
+def FeatureSPE : SubtargetFeature<"spe","HasSPE", "true",
+ "Enable SPE instructions">;
def FeatureMFOCRF : SubtargetFeature<"mfocrf","HasMFOCRF", "true",
"Enable the MFOCRF instruction">;
def FeatureFSqrt : SubtargetFeature<"fsqrt","HasFSQRT", "true",
"Enable the popcnt[dw] instructions">;
def FeatureLDBRX : SubtargetFeature<"ldbrx","HasLDBRX", "true",
"Enable the ldbrx instruction">;
+def FeatureCMPB : SubtargetFeature<"cmpb", "HasCMPB", "true",
+ "Enable the cmpb instruction">;
+def FeatureICBT : SubtargetFeature<"icbt","HasICBT", "true",
+ "Enable icbt instruction">;
def FeatureBookE : SubtargetFeature<"booke", "IsBookE", "true",
- "Enable Book E instructions">;
+ "Enable Book E instructions",
+ [FeatureICBT]>;
+def FeatureMSYNC : SubtargetFeature<"msync", "HasOnlyMSYNC", "true",
+ "Has only the msync instruction instead of sync",
+ [FeatureBookE]>;
+def FeatureE500 : SubtargetFeature<"e500", "IsE500", "true",
+ "Enable E500/E500mc instructions">;
+def FeaturePPC4xx : SubtargetFeature<"ppc4xx", "IsPPC4xx", "true",
+ "Enable PPC 4xx instructions">;
+def FeaturePPC6xx : SubtargetFeature<"ppc6xx", "IsPPC6xx", "true",
+ "Enable PPC 6xx instructions">;
def FeatureQPX : SubtargetFeature<"qpx","HasQPX", "true",
"Enable QPX instructions">;
def FeatureVSX : SubtargetFeature<"vsx","HasVSX", "true",
- "Enable VSX instructions">;
+ "Enable VSX instructions",
+ [FeatureAltivec]>;
+def FeatureP8Altivec : SubtargetFeature<"power8-altivec", "HasP8Altivec", "true",
+ "Enable POWER8 Altivec instructions",
+ [FeatureAltivec]>;
+def FeatureP8Crypto : SubtargetFeature<"crypto", "HasP8Crypto", "true",
+ "Enable POWER8 Crypto instructions",
+ [FeatureP8Altivec]>;
+def FeatureP8Vector : SubtargetFeature<"power8-vector", "HasP8Vector", "true",
+ "Enable POWER8 vector instructions",
+ [FeatureVSX, FeatureP8Altivec]>;
+
+def FeatureInvariantFunctionDescriptors :
+ SubtargetFeature<"invariant-function-descriptors",
+ "HasInvariantFunctionDescriptors", "true",
+ "Assume function descriptors are invariant">;
def DeprecatedMFTB : SubtargetFeature<"", "DeprecatedMFTB", "true",
"Treat mftb as deprecated">;
// 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
// POPCNTB p5 through p7 popcntb and related instructions
-// VSX p7 vector-scalar instruction set
//===----------------------------------------------------------------------===//
// Classes used for relation maps.
// their record-form variants.
class RecFormRel;
+// AltVSXFMARel - Filter class used to relate the primary addend-killing VSX
+// FMA instruction forms with their corresponding factor-killing forms.
+class AltVSXFMARel {
+ bit IsVSXFMAAlt = 0;
+}
+
//===----------------------------------------------------------------------===//
// Relation Map Definitions.
//===----------------------------------------------------------------------===//
let ValueCols = [["0"]];
}
+def getAltVSXFMAOpcode : InstrMapping {
+ let FilterClass = "AltVSXFMARel";
+ // Instructions with the same BaseName and Interpretation64Bit values
+ // form a row.
+ let RowFields = ["BaseName"];
+ // Instructions with the same RC value form a column.
+ let ColFields = ["IsVSXFMAAlt"];
+ // The key column are the (default) addend-killing instructions.
+ let KeyCol = ["0"];
+ // Value columns IsVSXFMAAlt=1
+ let ValueCols = [["1"]];
+}
+
//===----------------------------------------------------------------------===//
// Register File Description
//===----------------------------------------------------------------------===//
def : Processor<"generic", G3Itineraries, [Directive32]>;
def : ProcessorModel<"440", PPC440Model, [Directive440, FeatureISEL,
FeatureFRES, FeatureFRSQRTE,
- FeatureBookE, DeprecatedMFTB]>;
+ FeatureICBT, FeatureBookE,
+ FeatureMSYNC, DeprecatedMFTB]>;
def : ProcessorModel<"450", PPC440Model, [Directive440, FeatureISEL,
FeatureFRES, FeatureFRSQRTE,
- FeatureBookE, DeprecatedMFTB]>;
+ FeatureICBT, FeatureBookE,
+ FeatureMSYNC, DeprecatedMFTB]>;
def : Processor<"601", G3Itineraries, [Directive601]>;
def : Processor<"602", G3Itineraries, [Directive602]>;
def : Processor<"603", G3Itineraries, [Directive603,
FeatureFRES, FeatureFRSQRTE]>;
def : Processor<"g4+", G4PlusItineraries, [Directive7400, FeatureAltivec,
FeatureFRES, FeatureFRSQRTE]>;
+
+/* Since new processors generally contain a superset of features of those that
+ came before them, the idea is to make implementations of new processors
+ less error prone and easier to read.
+ Namely:
+ list<SubtargetFeature> Power8FeatureList = ...
+ list<SubtargetFeature> FutureProcessorSpecificFeatureList =
+ [ features that Power8 does not support ]
+ list<SubtargetFeature> FutureProcessorFeatureList =
+ !listconcat(Power8FeatureList, FutureProcessorSpecificFeatureList)
+
+ Makes it explicit and obvious what is new in FutureProcesor vs. Power8 as
+ well as providing a single point of definition if the feature set will be
+ used elsewhere.
+
+*/
+def ProcessorFeatures {
+ list<SubtargetFeature> Power8FeatureList =
+ [DirectivePwr8, FeatureAltivec, FeatureP8Altivec, FeatureVSX,
+ FeatureP8Vector, FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt,
+ FeatureFRE, FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
+ FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
+ FeatureFPRND, FeatureFPCVT, FeatureISEL,
+ FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX, FeatureP8Crypto,
+ Feature64Bit /*, Feature64BitRegs */, FeatureICBT,
+ DeprecatedMFTB, DeprecatedDST];
+}
+
def : ProcessorModel<"970", G5Model,
[Directive970, FeatureAltivec,
FeatureMFOCRF, FeatureFSqrt,
DeprecatedMFTB, DeprecatedDST]>;
def : ProcessorModel<"e500mc", PPCE500mcModel,
[DirectiveE500mc, FeatureMFOCRF,
- FeatureSTFIWX, FeatureBookE, FeatureISEL,
- DeprecatedMFTB]>;
+ FeatureSTFIWX, FeatureICBT, FeatureBookE,
+ FeatureISEL, DeprecatedMFTB]>;
def : ProcessorModel<"e5500", PPCE5500Model,
[DirectiveE5500, FeatureMFOCRF, Feature64Bit,
- FeatureSTFIWX, FeatureBookE, FeatureISEL,
- DeprecatedMFTB]>;
+ FeatureSTFIWX, FeatureICBT, FeatureBookE,
+ FeatureISEL, DeprecatedMFTB]>;
def : ProcessorModel<"a2", PPCA2Model,
- [DirectiveA2, FeatureBookE, FeatureMFOCRF,
+ [DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF,
FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
FeatureSTFIWX, FeatureLFIWAX,
FeatureFPRND, FeatureFPCVT, FeatureISEL,
- FeaturePOPCNTD, FeatureLDBRX, Feature64Bit
+ FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX, Feature64Bit
/*, Feature64BitRegs */, DeprecatedMFTB]>;
def : ProcessorModel<"a2q", PPCA2Model,
- [DirectiveA2, FeatureBookE, FeatureMFOCRF,
+ [DirectiveA2, FeatureICBT, FeatureBookE, FeatureMFOCRF,
FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
FeatureSTFIWX, FeatureLFIWAX,
FeatureFPRND, FeatureFPCVT, FeatureISEL,
- FeaturePOPCNTD, FeatureLDBRX, Feature64Bit
+ FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX, Feature64Bit
/*, Feature64BitRegs */, FeatureQPX, DeprecatedMFTB]>;
def : ProcessorModel<"pwr3", G5Model,
[DirectivePwr3, FeatureAltivec,
[DirectivePwr6, FeatureAltivec,
FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
- FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
+ FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB,
FeatureFPRND, Feature64Bit /*, Feature64BitRegs */,
DeprecatedMFTB, DeprecatedDST]>;
def : ProcessorModel<"pwr6x", G5Model,
[DirectivePwr5x, FeatureAltivec, FeatureMFOCRF,
FeatureFCPSGN, FeatureFSqrt, FeatureFRE, FeatureFRES,
FeatureFRSQRTE, FeatureFRSQRTES, FeatureRecipPrec,
- FeatureSTFIWX, FeatureLFIWAX,
+ FeatureSTFIWX, FeatureLFIWAX, FeatureCMPB,
FeatureFPRND, Feature64Bit,
DeprecatedMFTB, DeprecatedDST]>;
def : ProcessorModel<"pwr7", P7Model,
- [DirectivePwr7, FeatureAltivec,
+ [DirectivePwr7, FeatureAltivec, FeatureVSX,
FeatureMFOCRF, FeatureFCPSGN, FeatureFSqrt, FeatureFRE,
FeatureFRES, FeatureFRSQRTE, FeatureFRSQRTES,
FeatureRecipPrec, FeatureSTFIWX, FeatureLFIWAX,
FeatureFPRND, FeatureFPCVT, FeatureISEL,
- FeaturePOPCNTD, FeatureLDBRX,
+ FeaturePOPCNTD, FeatureCMPB, FeatureLDBRX,
Feature64Bit /*, Feature64BitRegs */,
DeprecatedMFTB, DeprecatedDST]>;
+def : ProcessorModel<"pwr8", P8Model, ProcessorFeatures.Power8FeatureList>;
def : Processor<"ppc", G3Itineraries, [Directive32]>;
def : ProcessorModel<"ppc64", G5Model,
[Directive64, FeatureAltivec,
FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
FeatureFRSQRTE, FeatureSTFIWX,
Feature64Bit /*, Feature64BitRegs */]>;
-def : ProcessorModel<"ppc64le", G5Model,
- [Directive64, FeatureAltivec,
- FeatureMFOCRF, FeatureFSqrt, FeatureFRES,
- FeatureFRSQRTE, FeatureSTFIWX,
- Feature64Bit /*, Feature64BitRegs */]>;
+def : ProcessorModel<"ppc64le", P8Model, ProcessorFeatures.Power8FeatureList>;
//===----------------------------------------------------------------------===//
// Calling Conventions
def PPCInstrInfo : InstrInfo {
let isLittleEndianEncoding = 1;
+
+ // FIXME: Unset this when no longer needed!
+ let decodePositionallyEncodedOperands = 1;
+
+ let noNamedPositionallyEncodedOperands = 1;
}
def PPCAsmParser : AsmParser {
projects / oota-llvm.git / blobdiff