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Commit Graph

96 Commits

Author SHA1 Message Date
John McCall
69bc985550 Teach APFloat how to create both QNaNs and SNaNs and with arbitrary-width
payloads.  APFloat's internal folding routines always make QNaNs now,
instead of sometimes making QNaNs and sometimes SNaNs depending on the
type.

llvm-svn: 97364
2010-02-28 02:51:25 +00:00
John McCall
bb9c3309b2 Make APFloat's string-parsing routines a bit safer against very large exponents.
llvm-svn: 97278
2010-02-26 22:20:41 +00:00
Jeffrey Yasskin
eb0dbdca22 Fix (harmless) memory leak found by memcheck.
llvm-svn: 95862
2010-02-11 07:16:13 +00:00
Benjamin Kramer
0a0f0f6465 Silence GCC warnings.
llvm-svn: 95779
2010-02-10 13:34:02 +00:00
Dan Gohman
2dd0d36f14 Implement operators |=, &=, and ^= for SmallBitVector, and remove the
restriction in BitVector for |= and ^= that the operand must be the
same length.

llvm-svn: 95768
2010-02-10 05:54:04 +00:00
Dale Johannesen
af10702e49 Disable unittests/ADT/BitVectorTest on PPC Darwin.
It fails with a release build only, for reasons
as yet unknown.  (If there's a better way to Xfail
things here let me know, doesn't seem to be any
prior art in unittests.)

llvm-svn: 95700
2010-02-09 22:15:27 +00:00
John McCall
8bcabdeffc Make APInt::countLeadingZerosSlowCase() treat the contents of padding bits
as undefined.  Fixes an assertion in APFloat::toString noticed by Dale.

llvm-svn: 95196
2010-02-03 03:42:44 +00:00
Dan Gohman
090f279ac5 Add a SmallBitVector class, which mimics BitVector but uses only
a single pointer (PointerIntPair) member. In "small" mode, the
pointer field is reinterpreted as a set of bits. In "large" mode,
the pointer points to a heap-allocated object.

Also, give BitVector empty and swap functions.

And, add some simple unittests for BitVector and SmallBitVector.

llvm-svn: 92730
2010-01-05 15:04:49 +00:00
Benjamin Kramer
9e60957f54 Silence compiler warning.
warning: comparison between signed and unsigned integer expressions
llvm-svn: 92359
2009-12-31 16:27:13 +00:00
Douglas Gregor
c4174c69ea Document the edit-distance algorithm used in StringRef, switch it over
to SmallVector, and add a unit test.

llvm-svn: 92340
2009-12-31 04:24:34 +00:00
John McCall
75f1b8beeb Implement support for converting to string at "natural precision", and fix some
major bugs in long-precision conversion.

llvm-svn: 92150
2009-12-24 23:18:09 +00:00
Douglas Gregor
1dafbbc020 Move the two definitions of operator<< into namespace llvm, so they
will be found by argument-dependent lookup. As with the previous
commit, GCC is allowing ill-formed code.

llvm-svn: 92146
2009-12-24 21:15:37 +00:00
Douglas Gregor
a31d6d49b0 Define the new operator<< for sets into namespace std, so that
argument-dependent lookup can find it. This is another case where an
LLVM bug (not making operator<< visible) was masked by a GCC bug
(looking in the global namespace when it shouldn't).

llvm-svn: 92144
2009-12-24 21:11:45 +00:00
John McCall
c71c44ec7f Add accessors for the largest-magnitude, smallest-magnitude, and
smallest-normalized-magnitude values in a given FP semantics.
Provide an APFloat-to-string conversion which I am quite ready to admit could
be much more efficient.

llvm-svn: 92126
2009-12-24 08:56:26 +00:00
Eli Friedman
fe6a796851 Change StringRef::startswith and StringRef::endswith to versions which are a
bit more verbose, but optimize to much shorter code.

llvm-svn: 91817
2009-12-21 06:49:24 +00:00
Daniel Dunbar
63e2201f3e Add an implementation of the delta debugging algorithm.
- This is a pretty slow / memory intensive implementation, and I will likely
   change it to an iterative model, but it works.

llvm-svn: 90447
2009-12-03 11:12:42 +00:00
Duncan Sands
78f8022d71 Only run this mutex test if threading is enabled. This
fixes PR5395.

llvm-svn: 89385
2009-11-19 20:48:14 +00:00
Benjamin Kramer
891fbcdb60 Reenable Split2 StringRef test with Apple gcc.
llvm-svn: 89357
2009-11-19 16:04:41 +00:00
Daniel Dunbar
e36c429c3b "XFAIL" the Split2 StringReft test with Apple gcc, which miscompiles it.
- I plan on fixing/workarounding this, but until then I'd like the bots to stay
   green.

llvm-svn: 89077
2009-11-17 09:29:59 +00:00
Rafael Espindola
bece8d9ae7 Distinguish "a," from "a". The first one splits into "a" + "" and the second one into
"a" + 0.

llvm-svn: 87084
2009-11-13 04:55:09 +00:00
Rafael Espindola
11ceba8119 Switch to smallvector. Also fix issue with using unsigend for MaxSplit.
llvm-svn: 87068
2009-11-13 02:18:25 +00:00
Rafael Espindola
22f040b797 Add a new split method to StringRef that puts the substrings in a vector.
llvm-svn: 87058
2009-11-13 01:24:40 +00:00
Daniel Dunbar
16a5387db2 Add From arguments to StringRef search functions, and tweak doxyments.
Also, add unittests for find_first_of and find_first_not_of.

llvm-svn: 86770
2009-11-11 00:28:53 +00:00
Jeffrey Yasskin
23ac706aab Fix DenseMap iterator constness.
This patch forbids implicit conversion of DenseMap::const_iterator to
DenseMap::iterator which was possible because DenseMapIterator inherited
(publicly) from DenseMapConstIterator. Conversion the other way around is now
allowed as one may expect.

The template DenseMapConstIterator is removed and the template parameter
IsConst which specifies whether the iterator is constant is added to
DenseMapIterator.

Actually IsConst parameter is not necessary since the constness can be
determined from KeyT but this is not relevant to the fix and can be addressed
later.

Patch by Victor Zverovich!

llvm-svn: 86636
2009-11-10 01:02:17 +00:00
Chris Lattner
fa5b1df64a Type.h doesn't need to #include LLVMContext.h
llvm-svn: 85254
2009-10-27 17:08:31 +00:00
Chandler Carruth
766362c707 Move DataTypes.h to include/llvm/System, update all users. This breaks the last
direct inclusion edge from System to Support.

llvm-svn: 85086
2009-10-26 01:35:46 +00:00
Jeffrey Yasskin
bc5f122491 Fix stylistic and documentation problems in ValueMap found by Nick Lewycky and
Evan Cheng.

llvm-svn: 84967
2009-10-23 20:54:00 +00:00
Jeffrey Yasskin
e90afea0ba Try r84890 again (adding ValueMap<>), now that I've tested the compile on
gcc-4.4.

llvm-svn: 84902
2009-10-22 22:11:22 +00:00
Jeffrey Yasskin
7555ed8cdc Revert r84890, which broke the linux build.
llvm-svn: 84892
2009-10-22 20:23:43 +00:00
Jeffrey Yasskin
ad8692124f Add a ValueMap<ValueOrSubclass*, T> type. ValueMap<Value*, T> is safe to use
even when keys get RAUWed and deleted during its lifetime. By default the keys
act like WeakVHs, but users can pass a third template parameter to configure
how updates work and whether to do anything beyond updating the map on each
action.

It's also possible to automatically acquire a lock around ValueMap updates
triggered by RAUWs and deletes, to support the ExecutionEngine.

llvm-svn: 84890
2009-10-22 20:10:20 +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
60e1dee7fa Add StringRef::{rfind, rsplit}
llvm-svn: 82087
2009-09-16 22:38:48 +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
Daniel Dunbar
29f5444a38 Add test for PR4873, which works for me.
llvm-svn: 80965
2009-09-03 22:57:02 +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
6bd69aaa86 Add support for including '+' in APFloat strings, more asserts,
and many new unit tests.

llvm-svn: 79574
2009-08-20 23:30:43 +00:00
Daniel Dunbar
9ad4b47cec Fix two APFloat bugs in converting hexadecimal constants.
llvm-svn: 79540
2009-08-20 17:12:33 +00:00
Benjamin Kramer
15b0649d13 Remove SmallString::append_*int* unit tests.
llvm-svn: 79451
2009-08-19 19:41:05 +00:00
Daniel Dunbar
6812c0db35 Add SmallVector::{capacity,set_size}.
- These allow clients to make use of the extra elements in the vector which
   have already been allocated, without requiring them to be value initialized.

llvm-svn: 79433
2009-08-19 17:48:28 +00:00
Daniel Dunbar
d334c67f60 Improve Triple to recognize the OS in i386-mingw32.
llvm-svn: 79359
2009-08-18 19:26:55 +00:00
Daniel Dunbar
09f40a7871 Fix pasto in StringRef::count(char)
llvm-svn: 79356
2009-08-18 18:34:22 +00:00
Daniel Dunbar
4a9a98a5de Add StringRef::count({char,StringRef})
llvm-svn: 79354
2009-08-18 18:26:35 +00:00