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0eca22af62
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314 Commits

Author SHA1 Message Date
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
Reid Spencer
b45a221348 Add an abs() function to get the absolute value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34819 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 23:37:09 +00:00
Reid Spencer
53ee4f9d40 Add doubleToBits and floatToBits methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34807 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 20:39:01 +00:00
Reid Spencer
ab2ed8ec85 Add bitsToDouble and bitsToFloat methods for re-interpretation of bits as FP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34800 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 20:06:51 +00:00
Reid Spencer
68e2300ad9 Add methods for bit width modification: sextOrTrunc, zextOrTrunc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34789 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 17:15:32 +00:00
Reid Spencer
af8fb19846 Add a square root function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 05:39:56 +00:00
Reid Spencer
f2253449e2 Make APInt a little more friendly to its users: 
* Add support for + and - of a uint64_t.
  * Make trunc/sext/zext return *this so it can be chained with other ops
  * Add smin, smax, umin, umax functions for getting min/max values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34742 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-28 17:33:36 +00:00
Reid Spencer
84b4eeccc7 getActiveWords should return the number of words, not the index of the 
highest active words. Increment its result by one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34713 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-28 02:20:49 +00:00
Reid Spencer
9d3c519233 Add some syntactic sugar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34704 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 23:47:33 +00:00
Reid Spencer
681dcd14e9 Implement countLeadingOnes() and getMinSignedBits(). This helps to minimize 
the bit width of negative numbers by computing the minimum bit width for a
negative value. E.g. 0x1800000000000000 could be just 0x8000000000000000


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34695 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 21:59:26 +00:00
Reid Spencer
66ed1099ff Improve APInt interface: 
1. Add unsigned and signed versions of methods so a "bool" argument doesn't
   need to be passed in.
2. Make the various getMin/getMax functions all be inline since they are
   so simple.
3. Simplify sdiv and srem code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34680 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 20:24:31 +00:00
Reid Spencer
409f092766 Allow the RoundDoubleToAPInt function to specify a width to use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34672 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 18:22:31 +00:00
Reid Spencer
946bca5bae Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34643 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-26 21:06:05 +00:00
Reid Spencer
31a81f0190 1. Split getValue() into getSExtValue() and getZExtValue() to match 
ConstantInt better.
2. Add a getHashValue() method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34641 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-26 20:57:12 +00:00
Reid Spencer
f99705e898 Implement inline methods that make transition of ConstantInt to use APInt 
easier to comprehend and might be useful elsewhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34635 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-26 17:50:32 +00:00
Reid Spencer
ebf4ebd691 Make isNegative() a const function since it doesn't modify the APInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34630 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-26 07:45:40 +00:00
Reid Spencer
dcffd5c3d9 Add an isNegative method to determine if the APInt's value is negative. 
This is much less expensive than a test against zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34619 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-26 01:20:59 +00:00
Reid Spencer
c68c2243dc Fix clearUnusedBits to not depend on "undefined behavior" of >> operator 
when the bit size is equal to the word size. This happens to work out okay
on x86, but might not on other platforms. The change just detects when
there are no bits to clear (because BitWidth is a multiple of the word size)
and returns early.

Also, move some comments from .cpp file into header.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34602 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 19:26:01 +00:00
Reid Spencer
20b1f5db1e Add a private constructor for efficiency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34580 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 07:29:03 +00:00
Reid Spencer
d03d012ad9 Improve documentation. 
Make divide function internal (it was briefly external for testing).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34557 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-24 09:50:13 +00:00
Reid Spencer
f31c784f27 Add a dump() method for debugging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34464 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 03:56:12 +00:00
Reid Spencer
e91f7847e6 Add an internal convenience method for division that urem and udiv use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34448 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 08:43:42 +00:00
Reid Spencer
d81b065950 Add some new constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34398 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-19 03:18:22 +00:00
Reid Spencer
a932e3f799 1. "unsigned" -> "uint32_t" to gaurantee its bit width on all platforms. 
Size matters in this case.
2. Remove the unused whichByte private function, which was also broken.
3. Remove the non-const overload of the getWord function, getWord() is
   never used as an lvalue.
4. Rename some local variables for clarity (e.g. API -> Result).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34390 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-18 18:42:35 +00:00
Reid Spencer
443b570149 Implement signed output for toString. 
Fix bugs in countLeadingZeros and countTrailingZeros.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34386 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-18 00:44:22 +00:00
Reid Spencer
cd6f2bfc26 Fix bugs introduced by constructor parameter order change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34357 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 00:18:01 +00:00
Reid Spencer
e81d2dad2c Review changes: 
1. Function style changes.
2. 80-col violations.
3. Better names for things.
4. Arrange constructors so they all take bit width first.
5. Add named signed and unsigned comparison functions and remove the
   corresponding operators.
6. Remove operator&& and operator|| but provide a getBoolValue function which
   converts to bool as comparison against 0. This allows the normal && and
   || operators to be used as if (X.getBoolValue() && Y.getBoolValue())

Note: this still doesn't function 100% yet. I'm working on the bugs now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34353 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-16 22:36:51 +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
Zhou Sheng
b04973edfa Fix some buges: 
1. Make getMinValue() returns the right value.
2. Fix the ByteSwap() crash problem.
3. Make Postfix increment work correctly.
4. Fix some bugs in LogBase2, Hi/LoBits and UDiv.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34304 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 06:36:31 +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
Reid Spencer
db3faa64ee Make some minor improvements to APInt: 
1. Make all the operators use uppercase
2. Rename APIntRoundToDouble method just RoundToDouble, the APInt is
   redundant.
3. Turn the class on for compilation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34253 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-13 22:41:58 +00:00
Chris Lattner
8c06509f95 fix a critical bug in smallvector, where it would destroy elements that are 
not in its range (!).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34230 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-13 07:25:36 +00:00
Zhou Sheng
d93f00c35d 1. Make APInt::shl work correctly and more efficiently. 
2. Add functions to support the numberical conversion between APInt and
   double/float.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34201 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-12 20:02:55 +00:00
Chris Lattner
a96b4ee7ff add new ShouldRehash method to factor out common code. Fix the dtor to not 
delete tombstones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34189 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-11 21:46:36 +00:00
Chris Lattner
65033ffc29 do not allow hash table to be filled with tombstones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34186 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-11 21:07:36 +00:00
Chris Lattner
44dcd01cb3 Add support for removing elements out of StringMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34185 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-11 20:58:00 +00:00