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42 Commits

Author SHA1 Message Date
Benjamin Kramer
28116c9f49 BitVector tweaks. 
- Double the vector's capacity when growing to avoid unneeccesary reallocation.
- Do the reallocation with realloc(3) which can expand the memory in place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120183 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-26 18:25:20 +00:00
Dan Gohman
fab4c9e9df Add an all() method to BitVector, for testing whether all bits are set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114830 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 15:48:37 +00:00
Dan Gohman
3f5e915652 Update BitVectorTest.cpp to stay in sync with SmallBitVectorTest.cpp, 
and fix a bug in BitVector's reference proxy class which this exposed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102768 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-30 20:50:28 +00:00
Chris Lattner
730f743c01 work around an MSVC2010 bug, PR6504 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-16 19:07:05 +00:00
Dan Gohman
e7962c9897 Implement operators |=, &=, and ^= for SmallBitVector, and remove the 
restriction in BitVector for |= and ^= that the operand must be the
same length.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95768 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 05:54:04 +00:00
Dan Gohman
cb89afc965 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 15:04:49 +00:00
Dan Gohman
de551f91d8 Use CHAR_BIT instead of hard-coding 8 in several places where it 
is appropriate. This helps visually differentiate host-oriented
calculations from target-oriented calculations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68227 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-01 18:45:54 +00:00
Roman Levenstein
8d8a0c36b7 Fix a bug in BitVector.h. All assignment operations (except the usual 
assignment operator) were returning a copy of the bit vector, instead of a
reference! This old semantics probably did not meet the expectations.
With this patch, chained assignments happen to the right object.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63012 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 11:07:20 +00:00
Misha Brukman
3a54b3dc87 Removed trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62000 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-09 19:25:42 +00:00
Dan Gohman
1baa88e3de Prune and tidy #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 19:52:31 +00:00
Evan Cheng
34cd4a484e Fix more -Wshorten-64-to-32 warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 18:30:58 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:08:44 +00:00
Chris Lattner
7ed47a1335 Don't attribute in file headers anymore. See llvmdev for the 
discussion of this change.  Boy are my fingers tired. ;-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:59:42 +00:00
Ted Kremenek
9324665a78 Added two bounds checks to the BitVector class to detect 
out-of-bounds bit accesses.  The checks are only performed
in a Debug build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44815 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 22:28:35 +00:00
Hartmut Kaiser
efd4a5144b Updated VC++ build system. 
Silenced some VC warnings.

I'm getting linker errors, though: unresolved externals:

llvm::Split<class llvm::BasicBlock *,struct llvm::GraphTraits<class llvm::BasicBlock *> >(class llvm::DominatorTreeBase<class llvm::BasicBlock> &,class llvm::BasicBlock *)

and

llvm::Split<struct llvm::Inverse<class llvm::BasicBlock *>,struct llvm::GraphTraits<struct llvm::Inverse<class llvm::BasicBlock *> > >(class llvm::DominatorTreeBase<class llvm::BasicBlock> &,class llvm::BasicBlock *)

Where are these defined?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43073 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 14:56:40 +00:00
Chris Lattner
886636445d make operator== work with non-equal sized bitvectors, as long as 
the extra bits are all zeros.  This allows  "010" and "010000" to be
treated as equal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42889 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-12 03:48:59 +00:00
Chris Lattner
343960af31 make bitvector &= do the right thing if vectors have mismatched length. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42860 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-11 06:12:33 +00:00
Chandler Carruth
b1183c1ff3 This fixes resizing issues with BitVectors. It ensures that the BitWord type and type size is always used, and ensures completely correct clearing of unused high bits, and setting of bits when resizing. It should resolve PR1563. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40871 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 20:52:17 +00:00
Owen Anderson
c5c7f755c8 Evidently my earlier fix did not go far enough. When resizing a zero-sized 
BitVector, make sure to set or clear ALL of the bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38481 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 02:01:16 +00:00
Owen Anderson
0c81450a0c When resizing a BitVector with size 0, be sure to clear the low word before using it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38476 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 23:39:39 +00:00
Jeff Cohen
2864b77efc Rename identifier that GCC uses as a macro, breaking llvm-gcc build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36474 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-26 15:07:47 +00:00
Anton Korobeynikov
bed2946a96 Removed tabs everywhere except autogenerated & external files. Add make 
target for tabs checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36146 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 18:10:23 +00:00
Lauro Ramos Venancio
ecd276a498 Fix release build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 22:13:39 +00:00
Anton Korobeynikov
5502bf67cd Properly emit range comparisons for switch cases, where neighbour cases 
go to the same destination. Now we're producing really good code for
switch-lower-feature.ll testcase


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35672 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 21:14:49 +00:00
Chris Lattner
b9174dd5dc Add a dtor to fix leaks from all clients of BitVector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35200 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 02:10:56 +00:00
Evan Cheng
0eca22af62 Make it 64-bit safe. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34829 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-02 02:31:37 +00:00
Evan Cheng
b5aabee330 Proper fix for the off-by-one bug in clear_unused_bits(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34328 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 21:38:15 +00:00
Reid Spencer
f1f007d2ff Fix an off-by-one bug in computing the index of the word to clear. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34326 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 20:49:10 +00:00
Reid Spencer
9d1597b086 Make sure Capacity gets initialized too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34325 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 20:14:06 +00:00
Evan Cheng
852b4baf47 Missing a ; 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34322 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:29:05 +00:00
Evan Cheng
e01ad2d129 BitVector::reference operator=(const reference& rhs) is unnecessary thanks to autoconvert to bool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34320 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:21:44 +00:00
Evan Cheng
1f46998b3f Remove unnecessary checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34319 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:18:12 +00:00
Evan Cheng
638417f788 operator== returns false when two bitvectors have different sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34317 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:16:21 +00:00
Evan Cheng
c761df18ae Merges two resize() variants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34316 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:12:39 +00:00
Evan Cheng
ccae61c5da Clear no longer deleting the bits to avoid mallocs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34315 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:10:34 +00:00
Evan Cheng
7bf26c1d68 BitVector::count() bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34314 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:09:36 +00:00
Evan Cheng
334df9d83f Eliminate a redundent ctor; eliminate one more potential new [0]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34313 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:05:25 +00:00
Evan Cheng
057f8e0845 1 -> 1L since BitWord has type unsigned long. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34312 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:03:23 +00:00
Evan Cheng
5f92ce4696 Eliminate new[0], just set Bits to NULL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34311 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 18:59:15 +00:00
Evan Cheng
c48aafe6c6 Inverted the condition by accident. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34309 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 18:48:41 +00:00
Evan Cheng
506e899490 Bug fixes: assignment operator forgot to copy over size; copy ctor forgot to clear unused top bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34305 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 08:15:58 +00:00
Evan Cheng
ad1d5c3bc5 Add a BitVector class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34301 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 05:56:11 +00:00