c47069b141
Clean up whitespace
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llvm-svn: 200579
2014-01-31 21:45:51 +00:00
84fcbdea21
[APInt] Fix nearestLogBase2 to return correct answers for very large APInt and APInt with a bitwidth of 1.
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I also improved the comments, added some more tests, etc.
llvm-svn: 199610
2014-01-19 20:33:48 +00:00
073af74ece
[APInt] Fixed bug where APInt(UINT32_MAX, 0) would blow up when being constructed.
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This was due to arithmetic overflow in the getNumBits() computation. Now we
cast BitWidth to a uint64_t so that does not occur during the computation. After
the computation is complete, the uint64_t is truncated when the function
returns.
I know that this is not something that is likely to happen, but it *IS* a valid
input and we should not blow up.
llvm-svn: 199609
2014-01-19 20:33:38 +00:00
e1fad2b560
Remove APInt::extractBit since it is already implemented via operator[]. Change tests for extractBit to test operator[].
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llvm-svn: 197277
2013-12-13 22:00:19 +00:00
f6d58ff5c4
[block-freq] Add the method APInt::nearestLogBase2().
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llvm-svn: 197272
2013-12-13 20:47:37 +00:00
4497d963fb
[block-freq] Add the APInt method extractBit.
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llvm-svn: 197271
2013-12-13 20:47:34 +00:00
9d406f4ec7
[APInt] Implement tcDecrement as a counterpart to tcIncrement. This is for use in APFloat IEEE-754R 2008 nextUp/nextDown function.
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rdar://13852078
llvm-svn: 182801
2013-05-28 19:50:20 +00:00
5c3e21ba55
Move the SplatByte helper to APInt and generalize it a bit.
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llvm-svn: 175621
2013-02-20 13:00:06 +00:00
32dc724920
ADT: Correct APInt::getActiveWords for zero values
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PR15138 was opened because of a segfault in the Bitcode writer.
The actual issue ended up being a bug in APInt where calls to
APInt::getActiveWords returns a bogus value when the APInt value
is 0. This patch fixes the problem by ensuring that getActiveWords
returns 1 for 0 valued APInts.
llvm-svn: 174641
2013-02-07 18:36:50 +00:00
130cec21b9
Sort the #include lines for unittest/...
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llvm-svn: 169250
2012-12-04 10:23:08 +00:00
61b7fa2985
fix the quotient returned by sdivrem() for the case when LHS is negative and RHS is positive
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based on a patch by Preston Briggs, with some modifications
llvm-svn: 157231
2012-05-22 01:09:48 +00:00
47ddf604b9
Add a unittest for rotating a really big APInt.
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Clang miscompiles it under certain circumstances, and it's a good exercise for APInt.
llvm-svn: 149986
2012-02-07 16:27:39 +00:00
f70c862393
Some unittests for APInt rotates; patch by Cameron McInally.
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llvm-svn: 147186
2011-12-22 22:11:19 +00:00
1c419ff50d
APInt: update asserts for base-36
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Hexatridecimal was added in r139695.
And fix the unittest that now triggers the assert.
llvm-svn: 146754
2011-12-16 20:36:31 +00:00
195464184e
Fix APInt::operator*= so that it computes the correct result for large integers where there is unsigned overflow. Fix APFloat::toString so that it doesn't depend on the incorrect behavior in common cases (and computes the correct result in some rare cases). Fixes PR11086.
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llvm-svn: 141441
2011-10-07 23:40:49 +00:00
663c068d46
Add APInt support for converting to/from hexatridecimal strings
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llvm-svn: 139695
2011-09-14 15:54:46 +00:00
7a16288157
Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity
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errors like the one corrected by r135261. Migrate all LLVM callers of the old
constructor to the new one.
llvm-svn: 135431
2011-07-18 21:45:40 +00:00
c8c184d2f8
unittests: add test for APInt::toString()
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Follow up to r133032.
llvm-svn: 133107
2011-06-15 23:36:34 +00:00
09a51bab5d
Add an argument to APInt's magic udiv calculation to specify the number of bits that are known zero in the divided number.
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This will come in handy soon.
llvm-svn: 127828
2011-03-17 20:39:06 +00:00
8731d0cc83
The signed version of our "magic number" computation for the integer approximation
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of a constant had a minor typo introduced when copying it from the book, which
caused it to favor negative approximations over positive approximations in many
cases. Positive approximations require fewer operations beyond the multiplication.
In the case of division by 3, we still generate code that is a single instruction
larger than GCC's code.
llvm-svn: 126097
2011-02-21 00:22:02 +00:00
25a5e4ca1f
PR5207: Rename overloaded APInt methods set(), clear(), flip() to
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setAllBits(), setBit(unsigned), etc.
llvm-svn: 120564
2010-12-01 08:53:58 +00:00
e1e70b93ca
Attempt to unbreak the FreeBSD buildbot by XFAILing a unit test that seems to be
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miscompiled by the system gcc-4.2.1
The test remains enabled for the second-stage test.
llvm-svn: 113824
2010-09-14 00:51:58 +00:00
bc3e8a7c93
Switch from EXPECT_EQ({true,false, ...) to the more canonical
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EXPECT_{TRUE,FALSE}(...) macros. This also prevents suprious warnings about
bool-to-pointer conversion that occurs withit EXPECT_EQ.
llvm-svn: 108248
2010-07-13 17:28:05 +00:00
b5cd01335b
Fix death tests in -Asserts builds.
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llvm-svn: 98701
2010-03-17 01:18:45 +00:00
f7ad620c62
Pacify the compiler (signed with unsigned comparison) by making
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these constants unsigned.
llvm-svn: 83962
2009-10-13 09:23:11 +00:00
c4e367b854
Add a ceilLogBase2 function to APInt.
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llvm-svn: 83932
2009-10-13 01:49:02 +00:00
73e76a1d60
Fix a few more conversion warnings on 4.0
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llvm-svn: 82232
2009-09-18 17:48:05 +00:00
0ec4ed7b74
Another try at fixing compile warnings on 4.0
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llvm-svn: 82148
2009-09-17 17:46:53 +00:00
6ced391121
Attempt to fix some 4.0.0 build warnings.
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llvm-svn: 81752
2009-09-14 02:38:53 +00:00
da30ecdcdd
Simplify, now that gtest supports raw_ostream directly.
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llvm-svn: 81102
2009-09-06 02:31:26 +00:00
0ffe0e096d
split raw_os_ostream out to its own header and implementation file. This
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means that raw_ostream no longer has to #include <iosfwd>. Nothing in llvm
should use raw_os_ostream.h, but llvm-gcc and some unit tests do.
llvm-svn: 79886
2009-08-24 04:02:06 +00:00
40b384eade
Unbreak unit tests.
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llvm-svn: 79879
2009-08-24 02:02:58 +00:00
ef793ccbdc
Correct for recent assert change.
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llvm-svn: 79601
2009-08-21 06:35:41 +00:00
dadb1571b7
Fix bug with APInt::getBitsNeeded with for base 10 numbers 0-9.
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llvm-svn: 79593
2009-08-21 03:15:28 +00:00
1264bcb4de
Allow '+' to appear in APInt strings, and add more unit tests.
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llvm-svn: 79592
2009-08-21 03:15:14 +00:00
927191f179
Wrap unit test death tests in GTEST_HAS_DEATH_TEST
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llvm-svn: 79218
2009-08-17 00:55:33 +00:00
2b01eab81c
Add failure tests to APInt unit test.
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llvm-svn: 79209
2009-08-16 23:36:01 +00:00
3a1efd11bb
Convert APint::{fromString,APInt,getBitsNeeded} to use StringRef.
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- Patch by Erick Tryzelaar, with some edits (and a bug fix) from me.
llvm-svn: 78885
2009-08-13 02:33:34 +00:00
10f1733d9a
Reapply 74494, this time removing the conflicting definition of operator<<
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in APIntTest.cpp.
llvm-svn: 74550
2009-06-30 20:10:56 +00:00
b869a0ade1
Fix PR4040: APInt's string constructor is too strict
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patch by Jeff Yasskin!
llvm-svn: 70058
2009-04-25 18:34:04 +00:00
680336d12f
* Fixed calls to APInt ctor to work for negative values on Darwin/x86
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* Converted C-style casts to C++-style casts
llvm-svn: 68613
2009-04-08 16:17:23 +00:00
d1d2c50ea7
Converted a1.ll to unittests.
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llvm-svn: 67652
2009-03-24 21:36:09 +00:00
5182b758a0
Renamed unittest files to have a consistent {Tt}est suffix.
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llvm-svn: 67326
2009-03-19 19:09:48 +00:00
Duncan P. N. Exon Smith