[PM] Port ScalarEvolution to the new pass manager.

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

diff --git a/include/llvm/MC/SubtargetFeature.h b/include/llvm/MC/SubtargetFeature.h
index fd09638268619bee9e356df9bd21722b45efd0ea..8edd798f1530002fb9435b564da897588e3ea4b3 100644 (file)
--- a/include/llvm/MC/SubtargetFeature.h
+++ b/include/llvm/MC/SubtargetFeature.h
@@ -30,7 +30,7 @@ namespace llvm {
 // A container class for subtarget features.
 // This is convenient because std::bitset does not have a constructor
 // with an initializer list of set bits.
-const unsigned MAX_SUBTARGET_FEATURES = 64;
+const unsigned MAX_SUBTARGET_FEATURES = 96;
 class FeatureBitset : public std::bitset<MAX_SUBTARGET_FEATURES> {
 public:
   // Cannot inherit constructors because it's not supported by VC++..
@@ -96,13 +96,17 @@ public:
   std::string getString() const;
 
   /// Adding Features.
-  void AddFeature(StringRef String);
+  void AddFeature(StringRef String, bool Enable = true);
 
   /// ToggleFeature - Toggle a feature and returns the newly updated feature
   /// bits.
   FeatureBitset ToggleFeature(FeatureBitset Bits, StringRef String,
                          ArrayRef<SubtargetFeatureKV> FeatureTable);
 
+  /// Apply the feature flag and return the newly updated feature bits.
+  FeatureBitset ApplyFeatureFlag(FeatureBitset Bits, StringRef Feature,
+                                 ArrayRef<SubtargetFeatureKV> FeatureTable);
+
   /// Get feature bits of a CPU.
   FeatureBitset getFeatureBits(StringRef CPU,
                           ArrayRef<SubtargetFeatureKV> CPUTable,