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49 Commits

Author SHA1 Message Date
Richard Trieu a64949dfb8 Disable -Wunknown-pragmas in a test so that Clang without -Wself-move will not 
complain that the flag doesn't exist.

llvm-svn: 225931
 2015-01-14 01:50:12 +00:00
Aaron Ballman 8bd9897730 Silence warnings about unknown pragmas for compilers that are not Clang. NFC. 
llvm-svn: 225788
 2015-01-13 14:30:07 +00:00
Richard Trieu 5dc76a5d34 Disable a warning for self move since the test is checking for this behavior. 
llvm-svn: 225754
 2015-01-13 02:10:33 +00:00
Craig Topper e1d1294853 Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created. 
llvm-svn: 216525
 2014-08-27 05:25:25 +00:00
David Blaikie 1508a652dc Fix -Wsign-compare warnings 
llvm-svn: 215483
 2014-08-12 23:23:05 +00:00
Reid Kleckner 3d4eae74e7 APInt: Make self-move-assignment a no-op to fix stage3 clang-cl 
It's not clear what the semantics of a self-move should be.  The
consensus appears to be that a self-move should leave the object in a
moved-from state, which is what our existing move assignment operator
does.

However, the MSVC 2013 STL will perform self-moves in some cases.  In
particular, when doing a std::stable_sort of an already sorted APSInt
vector of an appropriate size, one of the merge steps will self-move
half of the elements.

We don't notice this when building with MSVC, because MSVC will not
synthesize the move assignment operator for APSInt.  Presumably MSVC
does this because APInt, the base class, has user-declared special
members that implicitly delete move special members.  Instead, MSVC
selects the copy-assign operator, which defends against self-assignment.
Clang, on the other hand, selects the move-assign operator, and we get
garbage APInts.

llvm-svn: 215478
 2014-08-12 22:01:39 +00:00
Duncan P. N. Exon Smith c47069b141 Clean up whitespace 
llvm-svn: 200579
 2014-01-31 21:45:51 +00:00
Michael Gottesman 84fcbdea21 [APInt] Fix nearestLogBase2 to return correct answers for very large APInt and APInt with a bitwidth of 1. 
I also improved the comments, added some more tests, etc.

llvm-svn: 199610
 2014-01-19 20:33:48 +00:00
Michael Gottesman 073af74ece [APInt] Fixed bug where APInt(UINT32_MAX, 0) would blow up when being constructed. 
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
Michael Gottesman e1fad2b560 Remove APInt::extractBit since it is already implemented via operator[]. Change tests for extractBit to test operator[]. 
llvm-svn: 197277
 2013-12-13 22:00:19 +00:00
Michael Gottesman f6d58ff5c4 [block-freq] Add the method APInt::nearestLogBase2(). 
llvm-svn: 197272
 2013-12-13 20:47:37 +00:00
Michael Gottesman 4497d963fb [block-freq] Add the APInt method extractBit. 
llvm-svn: 197271
 2013-12-13 20:47:34 +00:00
Michael Gottesman 9d406f4ec7 [APInt] Implement tcDecrement as a counterpart to tcIncrement. This is for use in APFloat IEEE-754R 2008 nextUp/nextDown function. 
rdar://13852078

llvm-svn: 182801
 2013-05-28 19:50:20 +00:00
Benjamin Kramer 5c3e21ba55 Move the SplatByte helper to APInt and generalize it a bit. 
llvm-svn: 175621
 2013-02-20 13:00:06 +00:00
Meador Inge 32dc724920 ADT: Correct APInt::getActiveWords for zero values 
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
Chandler Carruth 130cec21b9 Sort the #include lines for unittest/... 
llvm-svn: 169250
 2012-12-04 10:23:08 +00:00
Nuno Lopes 61b7fa2985 fix the quotient returned by sdivrem() for the case when LHS is negative and RHS is positive 
based on a patch by Preston Briggs, with some modifications

llvm-svn: 157231
 2012-05-22 01:09:48 +00:00
Benjamin Kramer 47ddf604b9 Add a unittest for rotating a really big APInt. 
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
Eli Friedman f70c862393 Some unittests for APInt rotates; patch by Cameron McInally. 
llvm-svn: 147186
 2011-12-22 22:11:19 +00:00
Dylan Noblesmith 1c419ff50d APInt: update asserts for base-36 
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
Eli Friedman 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. 
llvm-svn: 141441
 2011-10-07 23:40:49 +00:00
Douglas Gregor 663c068d46 Add APInt support for converting to/from hexatridecimal strings 
llvm-svn: 139695
 2011-09-14 15:54:46 +00:00
Jeffrey Yasskin 7a16288157 Add APInt(numBits, ArrayRef<uint64_t> bigVal) constructor to prevent future ambiguity 
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
Dylan Noblesmith c8c184d2f8 unittests: add test for APInt::toString() 
Follow up to r133032.

llvm-svn: 133107
 2011-06-15 23:36:34 +00:00
Benjamin Kramer 09a51bab5d Add an argument to APInt's magic udiv calculation to specify the number of bits that are known zero in the divided number. 
This will come in handy soon.

llvm-svn: 127828
 2011-03-17 20:39:06 +00:00
Cameron Zwarich 8731d0cc83 The signed version of our "magic number" computation for the integer approximation 
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
Jay Foad 25a5e4ca1f PR5207: Rename overloaded APInt methods set(), clear(), flip() to 
setAllBits(), setBit(unsigned), etc.

llvm-svn: 120564
 2010-12-01 08:53:58 +00:00
Jakob Stoklund Olesen e1e70b93ca Attempt to unbreak the FreeBSD buildbot by XFAILing a unit test that seems to be 
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
Chandler Carruth bc3e8a7c93 Switch from EXPECT_EQ({true,false, ...) to the more canonical 
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
Jeffrey Yasskin b5cd01335b Fix death tests in -Asserts builds. 
llvm-svn: 98701
 2010-03-17 01:18:45 +00:00
Duncan Sands f7ad620c62 Pacify the compiler (signed with unsigned comparison) by making 
these constants unsigned.

llvm-svn: 83962
 2009-10-13 09:23:11 +00:00
Dan Gohman c4e367b854 Add a ceilLogBase2 function to APInt. 
llvm-svn: 83932
 2009-10-13 01:49:02 +00:00
Daniel Dunbar 73e76a1d60 Fix a few more conversion warnings on 4.0 
llvm-svn: 82232
 2009-09-18 17:48:05 +00:00
Daniel Dunbar 0ec4ed7b74 Another try at fixing compile warnings on 4.0 
llvm-svn: 82148
 2009-09-17 17:46:53 +00:00
Daniel Dunbar 6ced391121 Attempt to fix some 4.0.0 build warnings. 
llvm-svn: 81752
 2009-09-14 02:38:53 +00:00
Daniel Dunbar da30ecdcdd Simplify, now that gtest supports raw_ostream directly. 
llvm-svn: 81102
 2009-09-06 02:31:26 +00:00
Chris Lattner 0ffe0e096d split raw_os_ostream out to its own header and implementation file. This 
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
Daniel Dunbar 40b384eade Unbreak unit tests. 
llvm-svn: 79879
 2009-08-24 02:02:58 +00:00
Bill Wendling ef793ccbdc Correct for recent assert change. 
llvm-svn: 79601
 2009-08-21 06:35:41 +00:00
Erick Tryzelaar dadb1571b7 Fix bug with APInt::getBitsNeeded with for base 10 numbers 0-9. 
llvm-svn: 79593
 2009-08-21 03:15:28 +00:00
Erick Tryzelaar 1264bcb4de Allow '+' to appear in APInt strings, and add more unit tests. 
llvm-svn: 79592
 2009-08-21 03:15:14 +00:00
Erick Tryzelaar 927191f179 Wrap unit test death tests in GTEST_HAS_DEATH_TEST 
llvm-svn: 79218
 2009-08-17 00:55:33 +00:00
Erick Tryzelaar 2b01eab81c Add failure tests to APInt unit test. 
llvm-svn: 79209
 2009-08-16 23:36:01 +00:00
Daniel Dunbar 3a1efd11bb Convert APint::{fromString,APInt,getBitsNeeded} to use StringRef. 
- Patch by Erick Tryzelaar, with some edits (and a bug fix) from me.

llvm-svn: 78885
 2009-08-13 02:33:34 +00:00
Dan Gohman 10f1733d9a Reapply 74494, this time removing the conflicting definition of operator<< 
in APIntTest.cpp.

llvm-svn: 74550
 2009-06-30 20:10:56 +00:00
Chris Lattner b869a0ade1 Fix PR4040: APInt's string constructor is too strict 
patch by Jeff Yasskin!

llvm-svn: 70058
 2009-04-25 18:34:04 +00:00
Misha Brukman 680336d12f * Fixed calls to APInt ctor to work for negative values on Darwin/x86 
* Converted C-style casts to C++-style casts

llvm-svn: 68613
 2009-04-08 16:17:23 +00:00
Misha Brukman d1d2c50ea7 Converted a1.ll to unittests. 
llvm-svn: 67652
 2009-03-24 21:36:09 +00:00
Misha Brukman 5182b758a0 Renamed unittest files to have a consistent {Tt}est suffix. 
llvm-svn: 67326
 2009-03-19 19:09:48 +00:00