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1197 Commits

Author SHA1 Message Date
John McCall
6a09affdf6 Implement support for converting to string at "natural precision", and fix some 
major bugs in long-precision conversion.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92150 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-24 23:18:09 +00:00
John McCall
003a09c68d 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92130 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-24 12:16:56 +00:00
John McCall
00e65de9d8 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92126 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-24 08:56:26 +00:00
John McCall
d73bf5987a Set Remainder before Quotient in case Quotient and LHS alias. The new 
order should be immune to such problems.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92124 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-24 08:52:06 +00:00
David Greene
037764227e Clarify how dbgs() operates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92083 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 23:23:15 +00:00
Chris Lattner
62dc896bc4 sizeof(char) is always 1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92079 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 23:03:24 +00:00
Douglas Gregor
734d236aaf De-bork CMake build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92003 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 17:03:46 +00:00
David Greene
b5d568cc70 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92002 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 16:39:06 +00:00
David Greene
e59011e7d9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92001 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 16:08:15 +00:00
Chris Lattner
cd0129f5a6 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91740 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-19 01:38:42 +00:00
Chris Lattner
b3649db102 now that libsystem no longer uses SmallVector, we can move 
SmallVectorBase::grow_pod out of line, finally satisfying PR3758.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91529 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-16 08:44:24 +00:00
Dan Gohman
a4f8ecd85d Micro-optimize these functions in the case where they are not inlined. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91316 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 19:32:31 +00:00
Daniel Dunbar
022840e960 DeltaAlgorithm: Add a virtual destructor and home. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90957 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:19:48 +00:00
Daniel Dunbar
83563b24ce Fix typo and add missing include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90557 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 08:17:07 +00:00
Dan Gohman
018402d30c Print a newline after the Args: line so that unrelated errs() output doesn't 
end up on the same line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90473 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 19:03:18 +00:00
Daniel Dunbar
a6d5e40e25 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90447 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 11:12:42 +00:00
Chris Lattner
6e1f16d522 return more useful error messages by using strerror to format errno 
instead of returning an ambiguous reason.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 22:51:41 +00:00
Douglas Gregor
b3587cfb3b Perform explicit instantiations in the proper namespace, since Clang diagnoses this ill-formity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89846 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-25 06:04:18 +00:00
Daniel Dunbar
4153982375 SourceMgr: Add ShowLine argument to PrintMessage, to allow suppressing the source line output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89627 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-22 22:08:00 +00:00
Mikhail Glushenkov
37628e0098 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89463 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 17:23:17 +00:00
Daniel Dunbar
58ce7acb4f Use StringRef::min instead of std::min. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89372 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 18:53:18 +00:00
Mikhail Glushenkov
eeebecfcb4 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 17:29:36 +00:00
Edward O'Callaghan
cc9fa81fe1 Add PS3 Triple class, Credit to John Thompson. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89339 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 11:59:00 +00:00
Viktor Kutuzov
51cdac02c4 Added getArchNameForAssembler method to the Triple class for which returns OS and Vendor independent target assembler arch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89122 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 18:48:27 +00:00
Benjamin Kramer
110e7bb25c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89111 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 17:57:04 +00:00
Owen Anderson
252e574924 Fix a race condition in the Timer class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 07:06:10 +00:00
Edward O'Callaghan
e0fb75d586 Add PSP OS Target to Triple, Credit to Bruno Cardoso Lopes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88849 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 10:18:17 +00:00
Daniel Dunbar
ba43e0785b Report the detected host CPU in --version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 21:36:07 +00:00
Rafael Espindola
20fd4ec8c5 Distinguish "a," from "a". The first one splits into "a" + "" and the second one into 
"a" + 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87084 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 04:55:09 +00:00
Rafael Espindola
c78c0c99a0 Switch to smallvector. Also fix issue with using unsigend for MaxSplit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87068 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 02:18:25 +00:00
Rafael Espindola
5ccac24726 Add a new split method to StringRef that puts the substrings in a vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87058 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 01:24:40 +00:00
Benjamin Kramer
05872ea804 Add compare_lower and equals_lower methods to StringRef. Switch all users of 
StringsEqualNoCase (from StringExtras.h) to it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87020 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 20:36:59 +00:00
Nuno Lopes
4459145c2c fix crash in my previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86987 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 15:10:33 +00:00
Nuno Lopes
34e992da38 implement shl, ashr, and lshr methods. shl is not fully implemented as it is quite tricky. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86986 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 14:53:53 +00:00
Sandeep Patel
bf177ee6fd Show command-line args and features passed into backend in debug output. Approved by Evan Cheng. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86797 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 03:23:46 +00:00
Daniel Dunbar
64066bd8b5 Add From arguments to StringRef search functions, and tweak doxyments. 
Also, add unittests for find_first_of and find_first_not_of.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86770 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:28:53 +00:00
Daniel Dunbar
d65267ee62 Fix MemoryBuffer::getSTDIN to *not* return null if stdin is empty, this is a lame API. 
Also, Stringrefify some more MemoryBuffer functions, and add two performance FIXMEs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86630 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 00:43:58 +00:00
Nuno Lopes
95a3be0ba4 add zextOrTrunc and sextOrTrunc methods, that are similar to the ones in APInt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86549 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 15:36:28 +00:00
Xerxes Ranby
5aa638d8f7 Make lib/Support/Debug.cpp SetCurrentDebugType implementation part of llvm namespace to match function declaration in Debug.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86544 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-09 14:50:34 +00:00
Mikhail Glushenkov
c11e84d3e7 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86347 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-07 06:33:12 +00:00
Daniel Dunbar
2928c83b01 Pass StringRef by value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86251 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-06 10:58:06 +00:00
Duncan Sands
7127b13342 A value is only assigned to errno if NumRead equals -1, so do 
not reason based on errno if NumRead has a different value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86046 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-04 20:50:23 +00:00
Duncan Sands
954cb43c80 Make this code more robust by not thinking we are making progress 
if zero bytes were read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85922 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-03 19:10:22 +00:00
Chris Lattner
70197a3a04 add a new 'SetCurrentDebugType' API (requested by Andrew Haley for JIT 
stuff) to programmatically control the current debug flavor.  While 
I'm at it, doxygenate Debug.h and clean it up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85395 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-28 15:32:19 +00:00
Evan Cheng
c5a75523ef Remove getIEEEFloatParts and getIEEEDoubleParts. They are not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85358 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-28 01:08:17 +00:00
Evan Cheng
99ebfa5f6c Add new APFloat methods that return sign, exp, and mantissa of ieee float and double values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85318 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-27 21:35:42 +00:00
Chandler Carruth
8b67f774e9 Move DataTypes.h to include/llvm/System, update all users. This breaks the last 
direct inclusion edge from System to Support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-26 01:35:46 +00:00
Dale Johannesen
a223aed126 Commit fixes for half precision I noted in review, so 
they don't get lost; I don't think the originator has
write access.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84928 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-23 04:02:51 +00:00
Daniel Dunbar
9bd34602fb Move UnescapeString to a static function for its sole client; its inefficient and broken. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84358 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 20:43:42 +00:00
Daniel Dunbar
ca107c5c18 Remove llvm::EscapeString, raw_ostream::write_escaped is much faster. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84357 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 20:43:29 +00:00