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1189 Commits

Author SHA1 Message Date
Douglas Gregor
c8114b239b More trivial optimizations to a function well outside the critical path 
llvm-svn: 92896
 2010-01-07 02:24:06 +00:00
Douglas Gregor
b7161a0b1c Switch StringRef::edit_distance over to using raw pointers, since both 
std::vector and llvm::SmallVector have annoying performance
tradeoffs. No, I don't expect this to matter, and now it won't.

llvm-svn: 92884
 2010-01-07 00:51:54 +00:00
David Greene
e06113f92c Change errs() to dbgs(). 
llvm-svn: 92646
 2010-01-05 01:29:03 +00:00
David Greene
748f4ea3c4 Change errs() to dbgs(). 
llvm-svn: 92645
 2010-01-05 01:28:58 +00:00
David Greene
70b4a7ebff Change errs() to dbgs(). 
llvm-svn: 92643
 2010-01-05 01:28:52 +00:00
David Greene
d36fd269e1 Change errs() to dbgs(). 
llvm-svn: 92642
 2010-01-05 01:28:47 +00:00
David Greene
a060a30a13 Change errs() to dbgs(). 
llvm-svn: 92641
 2010-01-05 01:28:43 +00:00
David Greene
065337b05c Change errs() to dbgs(). 
llvm-svn: 92640
 2010-01-05 01:28:40 +00:00
David Greene
b961c4aa37 Change errs() to dbgs(). 
llvm-svn: 92638
 2010-01-05 01:28:32 +00:00
David Greene
4bf2def211 Change errs() to dbgs(). 
llvm-svn: 92637
 2010-01-05 01:28:29 +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
Douglas Gregor
301af636d3 Implement edit distance for StringRef 
llvm-svn: 92309
 2009-12-30 17:23:44 +00:00
Chris Lattner
86c74f4783 Do not crash when .ll printing metadata that smells like debug info, but isn't. 
llvm-svn: 92268
 2009-12-29 21:17:33 +00:00
Chris Lattner
baa1820ccb fix indentation, fit in 80 cols. 
llvm-svn: 92267
 2009-12-29 21:09:57 +00:00
Chris Lattner
20668429a2 fix .cpp file to not wrap the entire file in namespace blocks. 
llvm-svn: 92250
 2009-12-29 07:28:33 +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
John McCall
c6cdebbedd Substantially optimize APFloat::toString() by doing a single large divide to 
cut the significand down to the desired precision *before* entering the
core divmod loop.  Makes the overall algorithm logarithmic in the exponent.

There's still a lot of room for improvement here, but this gets the
performance back down to acceptable-for-diagnostics levels, even for
long doubles.
negligible, even on long doubles.

llvm-svn: 92130
 2009-12-24 12:16:56 +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
John McCall
dad4e2e4e5 Set Remainder before Quotient in case Quotient and LHS alias. The new 
order should be immune to such problems.

llvm-svn: 92124
 2009-12-24 08:52:06 +00:00
David Greene
9c8c8af11d Clarify how dbgs() operates. 
llvm-svn: 92083
 2009-12-23 23:23:15 +00:00
Chris Lattner
0f8308d48a sizeof(char) is always 1. 
llvm-svn: 92079
 2009-12-23 23:03:24 +00:00
Douglas Gregor
37e54f9d4d De-bork CMake build 
llvm-svn: 92003
 2009-12-23 17:03:46 +00:00
David Greene
3f7cf289ed Provide dbgs(), a circular-buffering debug output stream. By default it 
simply passes output to errs().  If -debug-buffer-size=N is set N > 0,
dbgs() buffers its output until program termination and dumps the last N
characters sent to it.  This is handy when debugging very large inputs.

llvm-svn: 92002
 2009-12-23 16:39:06 +00:00
David Greene
f1f78a15e1 Add circular_raw_ostream, which buffers its output in a circular queue 
and outputs it when explicitly flushed.  The intent is to use it in
situations such as debug output logging where a signal handler can take
care of flushing the buffer at program termination.

llvm-svn: 92001
 2009-12-23 16:08:15 +00:00
Chris Lattner
e390b70e2c Make some methods const. The only interesting change here is that 
it changes raw_fd_ostream::preferred_buffer_size to return zero on
a scary stat failure instead of setting the stream to an error state.
This method really should not mutate the stream.

llvm-svn: 91740
 2009-12-19 01:38:42 +00:00
Chris Lattner
eee37b7ba5 now that libsystem no longer uses SmallVector, we can move 
SmallVectorBase::grow_pod out of line, finally satisfying PR3758.

llvm-svn: 91529
 2009-12-16 08:44:24 +00:00
Dan Gohman
8e0956f734 Micro-optimize these functions in the case where they are not inlined. 
llvm-svn: 91316
 2009-12-14 19:32:31 +00:00
Daniel Dunbar
a8dc0ca084 DeltaAlgorithm: Add a virtual destructor and home. 
llvm-svn: 90957
 2009-12-09 07:19:48 +00:00
Daniel Dunbar
ff4a35a76b Fix typo and add missing include. 
llvm-svn: 90557
 2009-12-04 08:17:07 +00:00
Dan Gohman
c33030883f Print a newline after the Args: line so that unrelated errs() output doesn't 
end up on the same line.

llvm-svn: 90473
 2009-12-03 19:03:18 +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
Chris Lattner
bd9a13086f return more useful error messages by using strerror to format errno 
instead of returning an ambiguous reason.

llvm-svn: 90275
 2009-12-01 22:51:41 +00:00
Douglas Gregor
2cb3662a53 Perform explicit instantiations in the proper namespace, since Clang diagnoses this ill-formity. 
llvm-svn: 89846
 2009-11-25 06:04:18 +00:00
Daniel Dunbar
11a4dce179 SourceMgr: Add ShowLine argument to PrintMessage, to allow suppressing the source line output. 
llvm-svn: 89627
 2009-11-22 22:08:00 +00:00
Mikhail Glushenkov
d561db80e6 Move the handling of CommaSeparated options into ProvideOption. 
Makes '--comma-separated val1,val2' mean the same thing as
'--comma-separated=val1,val2' (that is, 'val1' and 'val2' are not lumped
together as 'val1,val2'). Also declutters the main loop a bit.

llvm-svn: 89463
 2009-11-20 17:23:17 +00:00
Daniel Dunbar
8bb8ca3945 Use StringRef::min instead of std::min. 
llvm-svn: 89372
 2009-11-19 18:53:18 +00:00
Mikhail Glushenkov
55f7bd16f2 Trailing whitespace. 
llvm-svn: 89364
 2009-11-19 17:29:36 +00:00
Edward O'Callaghan
fb2393159b Add PS3 Triple class, Credit to John Thompson. 
llvm-svn: 89339
 2009-11-19 11:59:00 +00:00
Viktor Kutuzov
1452b67541 Added getArchNameForAssembler method to the Triple class for which returns OS and Vendor independent target assembler arch. 
llvm-svn: 89122
 2009-11-17 18:48:27 +00:00
Benjamin Kramer
f3f063a58e Revert CPU detection code to return "generic" instead of an empty string in case 
of failure. The x86 target didn't like empty cpu names and broke x86 tests on
non-x86 buildbots.

llvm-svn: 89111
 2009-11-17 17:57:04 +00:00
Owen Anderson
b319694f75 Fix a race condition in the Timer class. 
llvm-svn: 89056
 2009-11-17 07:06:10 +00:00
Edward O'Callaghan
c672c34d7a Add PSP OS Target to Triple, Credit to Bruno Cardoso Lopes. 
llvm-svn: 88849
 2009-11-15 10:18:17 +00:00
Daniel Dunbar
57f21a7c25 Report the detected host CPU in --version. 
llvm-svn: 88813
 2009-11-14 21:36:07 +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
Benjamin Kramer
da70783da7 Add compare_lower and equals_lower methods to StringRef. Switch all users of 
StringsEqualNoCase (from StringExtras.h) to it.

llvm-svn: 87020
 2009-11-12 20:36:59 +00:00
Nuno Lopes
569944e45f fix crash in my previous patch 
llvm-svn: 86987
 2009-11-12 15:10:33 +00:00
Nuno Lopes
aa4a883855 implement shl, ashr, and lshr methods. shl is not fully implemented as it is quite tricky. 
llvm-svn: 86986
 2009-11-12 14:53:53 +00:00
Sandeep Patel
a167903217 Show command-line args and features passed into backend in debug output. Approved by Evan Cheng. 
llvm-svn: 86797
 2009-11-11 03:23:46 +00:00