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2009-12-31Document the edit-distance algorithm used in StringRef, switch it overDouglas Gregor
to SmallVector, and add a unit test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92340 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-30Implement edit distance for StringRefDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92309 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-29Do not crash when .ll printing metadata that smells like debug info, but isn't.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92268 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-29fix indentation, fit in 80 cols.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92267 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-29fix .cpp file to not wrap the entire file in namespace blocks.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92250 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Implement support for converting to string at "natural precision", and fix someJohn McCall
major bugs in long-precision conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92150 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Substantially optimize APFloat::toString() by doing a single large divide toJohn McCall
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
2009-12-24Add accessors for the largest-magnitude, smallest-magnitude, andJohn McCall
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
2009-12-24Set Remainder before Quotient in case Quotient and LHS alias. The newJohn McCall
order should be immune to such problems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92124 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23Clarify how dbgs() operates.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92083 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23sizeof(char) is always 1.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92079 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23De-bork CMake buildDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92003 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-23Provide dbgs(), a circular-buffering debug output stream. By default itDavid Greene
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
2009-12-23Add circular_raw_ostream, which buffers its output in a circular queueDavid Greene
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
2009-12-19Make some methods const. The only interesting change here is thatChris Lattner
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
2009-12-16now that libsystem no longer uses SmallVector, we can move Chris Lattner
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
2009-12-14Micro-optimize these functions in the case where they are not inlined.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91316 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-09DeltaAlgorithm: Add a virtual destructor and home.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90957 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-04Fix typo and add missing include.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90557 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03Print a newline after the Args: line so that unrelated errs() output doesn'tDan Gohman
end up on the same line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90473 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03Add an implementation of the delta debugging algorithm.Daniel Dunbar
- 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
2009-12-01return more useful error messages by using strerror to format errnoChris Lattner
instead of returning an ambiguous reason. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90275 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-25Perform explicit instantiations in the proper namespace, since Clang ↵Douglas Gregor
diagnoses this ill-formity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89846 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-22SourceMgr: Add ShowLine argument to PrintMessage, to allow suppressing the ↵Daniel Dunbar
source line output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89627 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20Move the handling of CommaSeparated options into ProvideOption.Mikhail Glushenkov
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
2009-11-19Use StringRef::min instead of std::min.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19Trailing whitespace.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89364 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-19Add PS3 Triple class, Credit to John Thompson.Edward O'Callaghan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Added getArchNameForAssembler method to the Triple class for which returns ↵Viktor Kutuzov
OS and Vendor independent target assembler arch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89122 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Revert CPU detection code to return "generic" instead of an empty string in caseBenjamin Kramer
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
2009-11-17Fix a race condition in the Timer class.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89056 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-15Add PSP OS Target to Triple, Credit to Bruno Cardoso Lopes.Edward O'Callaghan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88849 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14Report the detected host CPU in --version.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88813 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Distinguish "a," from "a". The first one splits into "a" + "" and the second ↵Rafael Espindola
one into "a" + 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87084 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Switch to smallvector. Also fix issue with using unsigend for MaxSplit.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-13Add a new split method to StringRef that puts the substrings in a vector.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Add compare_lower and equals_lower methods to StringRef. Switch all users ofBenjamin Kramer
StringsEqualNoCase (from StringExtras.h) to it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87020 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12fix crash in my previous patchNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86987 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12implement shl, ashr, and lshr methods. shl is not fully implemented as it is ↵Nuno Lopes
quite tricky. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86986 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Show command-line args and features passed into backend in debug output. ↵Sandeep Patel
Approved by Evan Cheng. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86797 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-11Add From arguments to StringRef search functions, and tweak doxyments.Daniel Dunbar
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
2009-11-10Fix MemoryBuffer::getSTDIN to *not* return null if stdin is empty, this is a ↵Daniel Dunbar
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
2009-11-09add zextOrTrunc and sextOrTrunc methods, that are similar to the ones in APIntNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86549 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-09Make lib/Support/Debug.cpp SetCurrentDebugType implementation part of llvm ↵Xerxes Ranby
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
2009-11-07Trailing whitespace.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06Pass StringRef by value.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86251 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04A value is only assigned to errno if NumRead equals -1, so doDuncan Sands
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
2009-11-03Make this code more robust by not thinking we are making progressDuncan Sands
if zero bytes were read. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85922 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28add a new 'SetCurrentDebugType' API (requested by Andrew Haley for JITChris Lattner
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
2009-10-28Remove getIEEEFloatParts and getIEEEDoubleParts. They are not needed.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85358 91177308-0d34-0410-b5e6-96231b3b80d8
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