Commit Graph

37 Commits

Author SHA1 Message Date
Michael J. Spencer
69772efcb2 Make StringRef::getAsInteger work with all integer types. Before this change
it would fail with {,u}int64_t on x86-64 Linux.

This also removes code duplication.

llvm-svn: 152517
2012-03-10 23:02:54 +00:00
Chandler Carruth
b4a6f80d2e Add generic support for hashing StringRef objects using the new hashing library.
llvm-svn: 152003
2012-03-04 10:55:27 +00:00
Duncan Sands
4c85da8a2a Workaround a miscompilation by gcc-4.3 that showed up as a failure
of the StringRef.Split2 unittest on 32 bit machines.

llvm-svn: 151358
2012-02-24 09:01:34 +00:00
Duncan Sands
cb8147cfe5 Move the implementation of StringRef::split out of StringExtras.cpp
and into StringRef.cpp, which is where the other StringRef stuff is.

llvm-svn: 151054
2012-02-21 12:00:25 +00:00
Kaelyn Uhrain
874c22ce25 Add function for computing the edit distance of two arrays.
Accomplished by moving the body of StringRef::edit_distance into
a separate function that accepts two ArrayRefs, and making
StringRef::edit_distance a wrapper around the new function.

llvm-svn: 150621
2012-02-15 22:13:07 +00:00
Benjamin Kramer
a47a6fc91b Fix a typo.
llvm-svn: 143890
2011-11-06 20:36:50 +00:00
Daniel Dunbar
7b66487335 ADT/StringRef: Add ::lower() and ::upper() methods.
llvm-svn: 143880
2011-11-06 18:04:43 +00:00
Benjamin Kramer
524eb5859f Fix handling of the From parameter in StringRef::find.
Enable bounds checking to catch this kind of bug earlier.

llvm-svn: 142247
2011-10-17 20:49:40 +00:00
Benjamin Kramer
0c20486517 Add a bad char heuristic to StringRef::find.
Based on Horspool's simplified version of Boyer-Moore. We use a constant-sized table of
uint8_ts to keep cache thrashing low, needles bigger than 255 bytes are uncommon anyways.

The worst case is still O(n*m) but we do a lot better on the average case now.

llvm-svn: 142061
2011-10-15 10:08:31 +00:00
Jakob Stoklund Olesen
783b18e818 Fix a bug in compare_numeric().
Thanks to Alexandru Dura and Jonas Paulsson for finding it.

llvm-svn: 140859
2011-09-30 17:03:55 +00:00
Lenny Maiorani
1b1a9860d1 Remove bounded StringRef::compare() since nothing but Clang SA was using it and it is just as easy to use StringRef::substr() preceding StringRef::compare() to achieve the same thing.
llvm-svn: 130430
2011-04-28 20:20:12 +00:00
Lenny Maiorani
dfae65d305 Implements StringRef::compare with bounds. It is behaves similarly to strncmp(). Unit tests also included.
llvm-svn: 129582
2011-04-15 17:56:50 +00:00
Chris Lattner
0304b82f80 Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129558
2011-04-15 05:18:47 +00:00
Jay Foad
79e18ed269 PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

llvm-svn: 121120
2010-12-07 08:25:19 +00:00
Michael J. Spencer
090cf77d32 Support/ADT/StringRef: Add find_last_of.
llvm-svn: 120495
2010-11-30 23:27:35 +00:00
Michael J. Spencer
b2cfb3b443 Fix Whitespace.
llvm-svn: 120166
2010-11-26 04:16:08 +00:00
Ted Kremenek
3bb32def7e Fix memory leak in StringRef::edit_distance(). 'Allocated' could be leaked on an early return.
llvm-svn: 118370
2010-11-07 06:09:02 +00:00
Douglas Gregor
a598c0fbce Extend StringRef's edit-distance algorithm to permit an upper bound on the allowed edit distance
llvm-svn: 116867
2010-10-19 22:13:48 +00:00
Benjamin Kramer
7dcd303d9c StringRef::compare_numeric also differed from StringRef::compare for characters > 127.
llvm-svn: 112189
2010-08-26 15:25:35 +00:00
Benjamin Kramer
25003daf90 Do unsigned char comparisons in StringRef::compare_lower to be more consistent with compare in corner cases.
llvm-svn: 112185
2010-08-26 14:21:08 +00:00
Benjamin Kramer
926ba6058b Avoid O(n*m) complexity in StringRef::find_first(_not)_of(StringRef).
- Cache used characters in a bitset to reduce memory overhead to just 32 bytes.
- On my core2 this code is faster except when the checked string was very short
  (smaller than the list of delimiters).

llvm-svn: 111817
2010-08-23 18:16:08 +00:00
Jakob Stoklund Olesen
1c0aa5f14a Add StringRef::compare_numeric and use it to sort TableGen register records.
This means that our Registers are now ordered R7, R8, R9, R10, R12, ...
Not R1, R10, R11, R12, R2, R3, ...

llvm-svn: 104745
2010-05-26 21:47:28 +00:00
John McCall
b6e6dd63ad Add an override to StringRef::getAsInteger which parses into an APInt.
It gets its own implementation totally divorced from the (presumably
performance-sensitive) routines which parse into a uint64_t.

Add APInt::operator|=(uint64_t), which is situationally much better than
using a full APInt.

llvm-svn: 97381
2010-02-28 09:55:58 +00:00
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
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
Daniel Dunbar
8bb8ca3945 Use StringRef::min instead of std::min.
llvm-svn: 89372
2009-11-19 18:53:18 +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
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
Daniel Dunbar
4daaf9d3f4 Pass StringRef by value.
llvm-svn: 86251
2009-11-06 10:58:06 +00:00
Daniel Dunbar
a75b499af8 Workaround what I believe is an MSVC bug where it emits a definition for a
static const class member into each translation unit, with external linkage???
 - If someone understands this issue better, please clue me in, I haven't
   consulted the standard yet.

llvm-svn: 82516
2009-09-22 03:34:40 +00:00
Chris Lattner
86e1459473 simplify as daniel suggests
llvm-svn: 82415
2009-09-20 22:56:43 +00:00
Chris Lattner
72732da2f0 move a couple non-trivial methods out of line, add new
find_first_of/find_first_of methods.

llvm-svn: 82347
2009-09-20 01:22:16 +00:00
Chris Lattner
d2a0138c62 add some more overloads of StringRef::getAsInteger for
common and useful integer types.

llvm-svn: 82338
2009-09-19 23:58:48 +00:00
Chris Lattner
e6fa81a475 provide a "strtoull" operation that works on StringRef's.
llvm-svn: 82322
2009-09-19 19:47:14 +00:00
Daniel Dunbar
60e1dee7fa Add StringRef::{rfind, rsplit}
llvm-svn: 82087
2009-09-16 22:38:48 +00:00