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6 Commits

Author SHA1 Message Date
Benjamin Kramer
f3e9546fc1 SmallBitVector: Rework find_first/find_next and tweak test to test them (at least on 64 bit platforms). 
llvm-svn: 102712
 2010-04-30 13:40:27 +00:00
Benjamin Kramer
e4ebf09068 Implement a read/write operator[] for SmallBitVector with a proxy class. 
llvm-svn: 102709
 2010-04-30 12:29:39 +00:00
Benjamin Kramer
e59c44ea79 Make sure SmallBitVector actually uses the small case and fix latent bugs. 
- We can't use PointerIntPair here since we require the discrimination bit to be in the LSB.

llvm-svn: 102707
 2010-04-30 11:34:01 +00:00
Dan Gohman
2dd0d36f14 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
66ee3816ef Some versions of GCC don't like non-static data members in sizeof 
in this context.

llvm-svn: 92731
 2010-01-05 15:28:21 +00:00
Dan Gohman
090f279ac5 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