The TargetData is not used for the isPowerOfTwo determination. It has never

[oota-llvm.git] / include / llvm / MC / SubtargetFeature.h

diff --git a/include/llvm/MC/SubtargetFeature.h b/include/llvm/MC/SubtargetFeature.h
index ff726ecab62489d1037047924c39d600ee45ce7a..37ae03b45ca2644852b9ec87bce60546f4de46c2 100644 (file)
--- 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 <vector>
 #include "llvm/ADT/Triple.h"
 #include "llvm/Support/DataTypes.h"
+#include <vector>
 
 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.)
@@ -77,25 +77,27 @@ public:
   explicit SubtargetFeatures(const StringRef Initial = "");
 
   /// Features string accessors.
-  StringRef getString() const;
+  std::string getString() const;
 
   /// 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;