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77 Commits

Author SHA1 Message Date
Chandler Carruth ca99ad3f0d Add generic support for hashing StringRef objects using the new hashing library. 
llvm-svn: 152003
 2012-03-04 10:55:27 +00:00
Benjamin Kramer 4d681d7dc4 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 c874e2d8fb 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 367342e209 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 fad9d95722 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 2114b762de Don't infinitely recurse! Patch by Marius Wachtler! 
llvm-svn: 124366
 2011-01-27 07:35:27 +00:00
Benjamin Kramer 9bf0380a54 StringRef::compare_numeric also differed from StringRef::compare for characters > 127. 
llvm-svn: 112189
 2010-08-26 15:25:35 +00:00
Benjamin Kramer b04d4af057 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
Jakob Stoklund Olesen d1d7ed63ff 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
Benjamin Kramer 738800dd1d Silence compiler warning. 
warning: comparison between signed and unsigned integer expressions
llvm-svn: 92359
 2009-12-31 16:27:13 +00:00
Douglas Gregor 5639af4eac 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 4ee2cf658c 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
Eli Friedman 00879d8faa 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
Benjamin Kramer 99b5bd9074 Reenable Split2 StringRef test with Apple gcc. 
llvm-svn: 89357
 2009-11-19 16:04:41 +00:00
Daniel Dunbar 1acdfbd60b "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 ff2c72b858 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 7c6854995d Switch to smallvector. Also fix issue with using unsigend for MaxSplit. 
llvm-svn: 87068
 2009-11-13 02:18:25 +00:00
Rafael Espindola d554e44092 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 9806e4ab20 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 4498168753 Add StringRef::{rfind, rsplit} 
llvm-svn: 82087
 2009-09-16 22:38:48 +00:00
Daniel Dunbar 3828a99ba6 Fix pasto in StringRef::count(char) 
llvm-svn: 79356
 2009-08-18 18:34:22 +00:00
Daniel Dunbar 5736db6527 Add StringRef::count({char,StringRef}) 
llvm-svn: 79354
 2009-08-18 18:26:35 +00:00
Daniel Dunbar a1e04d43c4 StringRef: Add find(char) and find(StringRef). 
Also, regroup functions.

llvm-svn: 78712
 2009-08-11 20:47:15 +00:00
Daniel Dunbar 56563f33f7 Add StringRef::{slice, split}, two convenient string operations which are simple 
and efficient on a StringRef.

llvm-svn: 77117
 2009-07-26 03:18:15 +00:00
Daniel Dunbar e23388b25c Support writing a StringRef to a raw_ostream directly. 
llvm-svn: 76754
 2009-07-22 17:13:20 +00:00
Daniel Dunbar 1f982105a6 Add StringRef::{substr, startswith}. 
llvm-svn: 76559
 2009-07-21 09:18:49 +00:00
Daniel Dunbar 25f9fc5851 Add StringRef class, with fixes. 
llvm-svn: 76543
 2009-07-21 07:28:51 +00:00