RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 12:12:47 +01:00
Code Issues Projects Releases Wiki Activity
30,864 Commits 4 Branches 5 Tags 704 MiB
091d6cf3b7
Commit Graph

224 Commits

Author SHA1 Message Date
Reid Spencer
091d6cf3b7 Don't invoke undefined behavior in shifts in the functions getHighBitsSet 
and getLowBitsSet.

llvm-svn: 35311
 2007-03-24 23:35:54 +00:00
Reid Spencer
0e466b183f Implement the getBitsSet function. 
llvm-svn: 35310
 2007-03-24 23:27:48 +00:00
Reid Spencer
1aa3f64ef4 Implement the getHighBitsSet and getLowBitsSet functions. 
llvm-svn: 35308
 2007-03-24 23:05:35 +00:00
Reid Spencer
30351837ca Get the signs in the right place! 
llvm-svn: 35307
 2007-03-24 22:50:43 +00:00
Reid Spencer
0ceb493ee2 Undo the last change and make this really implement remainder and not 
modulus. The previous change was a result of incorrect documentation in
the LangRef.html.

llvm-svn: 35305
 2007-03-24 22:37:23 +00:00
Reid Spencer
c1dfceab8b Correct the implementation of srem to be remainder, not modulus. The sign of 
the result must follow the sign of the divisor.

llvm-svn: 35302
 2007-03-24 21:56:22 +00:00
Reid Spencer
52ea41bb97 Clean up this interface: 
1. Group similar methods into doxygen groups
2. Reorganize the groups into a consist flow.
3. Significantly improve the quality of the documentation on several methods
4. Rewrite srem and sdiv to eliminate a copy and improve readability.
5. Eliminate unneeded forward references.

llvm-svn: 35300
 2007-03-24 18:09:18 +00:00
Reid Spencer
76c1fef30a Fix a comment. 
llvm-svn: 35246
 2007-03-21 22:22:19 +00:00
Zhou Sheng
a9c0018850 Correct the name: isStrictPositive --> isStrictlyPositive. 
llvm-svn: 35201
 2007-03-20 02:18:16 +00:00
Chris Lattner
305c3525af Add a dtor to fix leaks from all clients of BitVector. 
llvm-svn: 35200
 2007-03-20 02:10:56 +00:00
Reid Spencer
c3422e56d6 Add an indication of signedness to the uint64_t constructor so sign bits 
can be extended. This helps fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35179
 2007-03-19 20:36:48 +00:00
Zhou Sheng
6ecf1045a6 Add isStrictPositive() to APInt to determine if this APInt Value > 0. 
llvm-svn: 35156
 2007-03-19 05:22:18 +00:00
Zhou Sheng
dfcf9376bc Add zextOrCopy() into APInt for convenience. 
llvm-svn: 35079
 2007-03-13 06:16:26 +00:00
Zhou Sheng
9643d0a422 Add getSignBit() and operator<<= into APInt for convenience. 
llvm-svn: 35059
 2007-03-11 07:16:10 +00:00
Jeff Cohen
84d84f7381 The hack won't work on VS 2005, and it might not be needed anyway. 
llvm-svn: 34930
 2007-03-05 17:22:33 +00:00
Zhou Sheng
b6d1ac8682 Correct the calculation in APInt::logBase2(). 
llvm-svn: 34929
 2007-03-05 16:42:58 +00:00
Jeff Cohen
b58af23ff3 Elminate tabs and improve comments. 
llvm-svn: 34921
 2007-03-05 00:46:22 +00:00
Jeff Cohen
98c99a3a02 Unbreak VC++ build. 
llvm-svn: 34917
 2007-03-05 00:00:42 +00:00
Chris Lattner
2510829eba add iterator range version of ctor. 
llvm-svn: 34899
 2007-03-04 04:04:43 +00:00
Reid Spencer
e2bf55dfe8 Regularize the interface for conversion functions to/from float/double. 
llvm-svn: 34881
 2007-03-03 08:34:02 +00:00
Reid Spencer
503dda5840 Make getNumWords public so that those using getRawData stand a chance of 
not reading beyond the end of the buffer returned.

llvm-svn: 34873
 2007-03-03 06:17:23 +00:00
Reid Spencer
47b01d6acb Add names for some of the operators. This is needed for the macros in 
the Interpreter.

llvm-svn: 34872
 2007-03-03 05:37:23 +00:00
Reid Spencer
e5244b132b Add isPositive for symmetry with isNegative. 
llvm-svn: 34862
 2007-03-03 00:24:39 +00:00
Chris Lattner
68244ce570 Fix PR1234 by working around a compiler bug. 
llvm-svn: 34845
 2007-03-02 18:16:29 +00:00
Evan Cheng
44257955c8 Make it 64-bit safe. 
llvm-svn: 34829
 2007-03-02 02:31:37 +00:00
Reid Spencer
d86182b19b Add an abs() function to get the absolute value. 
llvm-svn: 34819
 2007-03-01 23:37:09 +00:00
Reid Spencer
003170430b Add doubleToBits and floatToBits methods. 
llvm-svn: 34807
 2007-03-01 20:39:01 +00:00
Reid Spencer
90b6227b81 Add bitsToDouble and bitsToFloat methods for re-interpretation of bits as FP. 
llvm-svn: 34800
 2007-03-01 20:06:51 +00:00
Reid Spencer
6a95676875 Add methods for bit width modification: sextOrTrunc, zextOrTrunc. 
llvm-svn: 34789
 2007-03-01 17:15:32 +00:00
Reid Spencer
b6dd32889e Add a square root function. 
llvm-svn: 34775
 2007-03-01 05:39:56 +00:00
Reid Spencer
0f2d45e42c 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.

llvm-svn: 34742
 2007-02-28 17:33:36 +00:00
Reid Spencer
949b3612a8 getActiveWords should return the number of words, not the index of the 
highest active words. Increment its result by one.

llvm-svn: 34713
 2007-02-28 02:20:49 +00:00
Reid Spencer
355cec42d1 Add some syntactic sugar. 
llvm-svn: 34704
 2007-02-27 23:47:33 +00:00
Reid Spencer
edbe747bab 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

llvm-svn: 34695
 2007-02-27 21:59:26 +00:00
Reid Spencer
9e66d0921a 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.

llvm-svn: 34680
 2007-02-27 20:24:31 +00:00
Reid Spencer
612dfe195b Allow the RoundDoubleToAPInt function to specify a width to use. 
llvm-svn: 34672
 2007-02-27 18:22:31 +00:00
Reid Spencer
9bc19eab08 Fix indentation. 
llvm-svn: 34643
 2007-02-26 21:06:05 +00:00
Reid Spencer
18629544d3 1. Split getValue() into getSExtValue() and getZExtValue() to match 
ConstantInt better.
2. Add a getHashValue() method.

llvm-svn: 34641
 2007-02-26 20:57:12 +00:00
Reid Spencer
11f19f730c Implement inline methods that make transition of ConstantInt to use APInt 
easier to comprehend and might be useful elsewhere.

llvm-svn: 34635
 2007-02-26 17:50:32 +00:00
Reid Spencer
1252a271a1 Make isNegative() a const function since it doesn't modify the APInt. 
llvm-svn: 34630
 2007-02-26 07:45:40 +00:00
Reid Spencer
e8e8ea4fba Add an isNegative method to determine if the APInt's value is negative. 
This is much less expensive than a test against zero.

llvm-svn: 34619
 2007-02-26 01:20:59 +00:00
Reid Spencer
a4ab1c36d2 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.

llvm-svn: 34602
 2007-02-25 19:26:01 +00:00
Reid Spencer
e7d8a0e3b7 Add a private constructor for efficiency. 
llvm-svn: 34580
 2007-02-25 07:29:03 +00:00
Reid Spencer
a2a4a55915 Improve documentation. 
Make divide function internal (it was briefly external for testing).

llvm-svn: 34557
 2007-02-24 09:50:13 +00:00
Reid Spencer
807eadb51a Add a dump() method for debugging. 
llvm-svn: 34464
 2007-02-21 03:56:12 +00:00
Reid Spencer
2e50b9ed5b Add an internal convenience method for division that urem and udiv use. 
llvm-svn: 34448
 2007-02-20 08:43:42 +00:00
Reid Spencer
6eb099875c Add some new constants. 
llvm-svn: 34398
 2007-02-19 03:18:22 +00:00
Reid Spencer
79d2fad9f5 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).

llvm-svn: 34390
 2007-02-18 18:42:35 +00:00
Reid Spencer
62b55a934b Implement signed output for toString. 
Fix bugs in countLeadingZeros and countTrailingZeros.

llvm-svn: 34386
 2007-02-18 00:44:22 +00:00
Reid Spencer
9c5efbcef2 Fix bugs introduced by constructor parameter order change. 
llvm-svn: 34357
 2007-02-17 00:18:01 +00:00