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Viewing changes to include/llvm/Analysis/ValueTracking.h

  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2012-04-01 23:45:03 UTC
  • mfrom: (1.1.1)
  • Revision ID: package-import@ubuntu.com-20120401234503-c04qxrk7s9my53uy
Tags: 3.1~svn153852-1
New snapshot release

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include/llvm/Analysis/ValueTracking.h
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  class APInt;
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  class TargetData;
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  class StringRef;
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  class MDNode;
 
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  /// ComputeMaskedBits - Determine which of the bits specified in Mask are
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  /// known to be either zero or one and return them in the KnownZero/KnownOne
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  /// bit sets.  This code only analyzes bits in Mask, in order to short-circuit
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  void ComputeMaskedBits(Value *V, const APInt &Mask, APInt &KnownZero,
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                         APInt &KnownOne, const TargetData *TD = 0,
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                         unsigned Depth = 0);
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  void computeMaskedBitsLoad(const MDNode &Ranges, const APInt &Mask,
 
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                             APInt &KnownZero);
 
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  /// ComputeSignBit - Determine whether the sign bit is known to be zero or
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  /// one.  Convenience wrapper around ComputeMaskedBits.
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  void ComputeSignBit(Value *V, bool &KnownZero, bool &KnownOne,