X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FMC%2FSubtargetFeature.h;h=37ae03b45ca2644852b9ec87bce60546f4de46c2;hb=645016533d1208d2e7a17d917d64b8b63c4f9939;hp=fccff031267301fb254c9d22f5024c812e2cffa1;hpb=3f9b9eb57dafc2a25a6e3d9ee570bd5a884b11e3;p=oota-llvm.git diff --git a/include/llvm/MC/SubtargetFeature.h b/include/llvm/MC/SubtargetFeature.h index fccff031267..37ae03b45ca 100644 --- a/include/llvm/MC/SubtargetFeature.h +++ b/include/llvm/MC/SubtargetFeature.h @@ -18,14 +18,14 @@ #ifndef LLVM_MC_SUBTARGETFEATURE_H #define LLVM_MC_SUBTARGETFEATURE_H -#include #include "llvm/ADT/Triple.h" #include "llvm/Support/DataTypes.h" +#include namespace llvm { class raw_ostream; class StringRef; - + //===----------------------------------------------------------------------===// /// /// SubtargetFeatureKV - Used to provide key value pairs for feature and @@ -36,13 +36,13 @@ struct SubtargetFeatureKV { const char *Desc; // Help descriptor uint64_t Value; // K-V integer value uint64_t Implies; // K-V bit mask - + // Compare routine for std binary search bool operator<(const SubtargetFeatureKV &S) const { return strcmp(Key, S.Key) < 0; } }; - + //===----------------------------------------------------------------------===// /// /// SubtargetInfoKV - Used to provide key value pairs for CPU and arbitrary @@ -50,17 +50,17 @@ struct SubtargetFeatureKV { // struct SubtargetInfoKV { const char *Key; // K-V key string - void *Value; // K-V pointer value - + const void *Value; // K-V pointer value + // Compare routine for std binary search bool operator<(const SubtargetInfoKV &S) const { return strcmp(Key, S.Key) < 0; } }; - + //===----------------------------------------------------------------------===// /// -/// SubtargetFeatures - Manages the enabling and disabling of subtarget +/// SubtargetFeatures - Manages the enabling and disabling of subtarget /// specific features. Features are encoded as a string of the form /// "cpu,+attr1,+attr2,-attr3,...,+attrN" /// A comma separates each feature from the next (all lowercase.) @@ -81,21 +81,23 @@ public: /// Adding Features. void AddFeature(const StringRef String, bool IsEnabled = true); - + + /// ToggleFeature - Toggle a feature and returns the newly updated feature + /// bits. + uint64_t ToggleFeature(uint64_t Bits, const StringRef String, + const SubtargetFeatureKV *FeatureTable, + size_t FeatureTableSize); + /// Get feature bits of a CPU. uint64_t getFeatureBits(const StringRef CPU, const SubtargetFeatureKV *CPUTable, size_t CPUTableSize, const SubtargetFeatureKV *FeatureTable, size_t FeatureTableSize); - - /// Get scheduling itinerary of a CPU. - void *getItinerary(const StringRef CPU, - const SubtargetInfoKV *Table, size_t TableSize); - + /// Print feature string. void print(raw_ostream &OS) const; - + // Dump feature info. void dump() const;