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36 Commits

Author SHA1 Message Date
Benjamin Kramer
a2f37d8d3b Move the SplatByte helper to APInt and generalize it a bit. 
llvm-svn: 175621
 2013-02-20 13:00:06 +00:00
Meador Inge
58a7392486 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
f413c260cc Sort the #include lines for unittest/... 
llvm-svn: 169250
 2012-12-04 10:23:08 +00:00
Nuno Lopes
328f9efec2 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
6d9863be3a 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
41be35819d Some unittests for APInt rotates; patch by Cameron McInally. 
llvm-svn: 147186
 2011-12-22 22:11:19 +00:00
Dylan Noblesmith
91b9af8f44 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
433785c651 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
8c0777c5f3 Add APInt support for converting to/from hexatridecimal strings 
llvm-svn: 139695
 2011-09-14 15:54:46 +00:00
Jeffrey Yasskin
2e0f2a0985 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
b75ad906fa unittests: add test for APInt::toString() 
Follow up to r133032.

llvm-svn: 133107
 2011-06-15 23:36:34 +00:00
Benjamin Kramer
a85996c235 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
b7e676db6c 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
789e8ac4f7 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
0a9b86f575 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
e3d4a2cbbc 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
4443f00d2b Fix death tests in -Asserts builds. 
llvm-svn: 98701
 2010-03-17 01:18:45 +00:00
Duncan Sands
19c1644f1f 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
f9067da535 Add a ceilLogBase2 function to APInt. 
llvm-svn: 83932
 2009-10-13 01:49:02 +00:00
Daniel Dunbar
d4df08bb72 Fix a few more conversion warnings on 4.0 
llvm-svn: 82232
 2009-09-18 17:48:05 +00:00
Daniel Dunbar
b415837d62 Another try at fixing compile warnings on 4.0 
llvm-svn: 82148
 2009-09-17 17:46:53 +00:00
Daniel Dunbar
23724b98d0 Attempt to fix some 4.0.0 build warnings. 
llvm-svn: 81752
 2009-09-14 02:38:53 +00:00
Daniel Dunbar
7ef30987f7 Simplify, now that gtest supports raw_ostream directly. 
llvm-svn: 81102
 2009-09-06 02:31:26 +00:00
Chris Lattner
98f201632e 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
56712ba250 Unbreak unit tests. 
llvm-svn: 79879
 2009-08-24 02:02:58 +00:00
Bill Wendling
e5dbd6b0f9 Correct for recent assert change. 
llvm-svn: 79601
 2009-08-21 06:35:41 +00:00
Erick Tryzelaar
ff8b504eb3 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
11660bb729 Allow '+' to appear in APInt strings, and add more unit tests. 
llvm-svn: 79592
 2009-08-21 03:15:14 +00:00
Erick Tryzelaar
3ca0a7b0e4 Wrap unit test death tests in GTEST_HAS_DEATH_TEST 
llvm-svn: 79218
 2009-08-17 00:55:33 +00:00
Erick Tryzelaar
36d9dbb8a1 Add failure tests to APInt unit test. 
llvm-svn: 79209
 2009-08-16 23:36:01 +00:00
Daniel Dunbar
3a5a25d5d5 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
148d3bb9b4 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
d68b203337 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
56dff472d2 * 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
6e86395ae7 Converted a1.ll to unittests. 
llvm-svn: 67652
 2009-03-24 21:36:09 +00:00
Misha Brukman
3c59ac1164 Renamed unittest files to have a consistent {Tt}est suffix. 
llvm-svn: 67326
 2009-03-19 19:09:48 +00:00