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3 Commits

Author SHA1 Message Date
Benjamin Kramer 4b86e9b7a6 Silence GCC warnings. 
llvm-svn: 95779
 2010-02-10 13:34:02 +00:00
Dan Gohman e69b99baaf Implement operators |=, &=, and ^= for SmallBitVector, and remove the 
restriction in BitVector for |= and ^= that the operand must be the
same length.

llvm-svn: 95768
 2010-02-10 05:54:04 +00:00
Dan Gohman 5976e7d5dd Add a SmallBitVector class, which mimics BitVector but uses only 
a single pointer (PointerIntPair) member. In "small" mode, the
pointer field is reinterpreted as a set of bits. In "large" mode,
the pointer points to a heap-allocated object.

Also, give BitVector empty and swap functions.

And, add some simple unittests for BitVector and SmallBitVector.

llvm-svn: 92730
 2010-01-05 15:04:49 +00:00