477121721b
[ADT] Add a single-character version of the small vector split routine
...
on StringRef. Finding and splitting on a single character is
substantially faster than doing it on even a single character StringRef
-- we immediately get to a *very* tuned memchr call this way.
Even nicer, we get to this even in a debug build, shaving 18% off the
runtime of TripleTest.Normalization, helping PR23676 some more.
llvm-svn: 247244
2015-09-10 06:07:03 +00:00
502b9e1d7f
Retire llvm::array_endof in favor of non-member std::end.
...
While there make array_lengthof constexpr if we have support for it.
llvm-svn: 206112
2014-04-12 16:15:53 +00:00
4d6d981297
Fix layering StringRef copy using BumpPtrAllocator.
...
Now to copy a string into a BumpPtrAllocator and get a StringRef to the copy:
StringRef myCopy = myStr.copy(myAllocator);
llvm-svn: 200885
2014-02-05 22:22:56 +00:00
17d4e98e73
Roll back the ConstStringRef change for now
...
There are a couple of interesting things here that we want to check over
(particularly the expecting asserts in StringRef) and get right for general use
in ADT so hold back on this one. For clang we have a workable templated
solution to use in the meanwhile.
This reverts commit r200187.
llvm-svn: 200194
2014-01-27 05:24:39 +00:00
042f41b047
StringRef: Extend constexpr capabilities and introduce ConstStringRef
...
(1) Add llvm_expect(), an asserting macro that can be evaluated as a constexpr
expression as well as a runtime assert or compiler hint in release builds. This
technique can be used to construct functions that are both unevaluated and
compiled depending on usage.
(2) Update StringRef using llvm_expect() to preserve runtime assertions while
extending the same checks to static asserts in C++11 builds that support the
feature.
(3) Introduce ConstStringRef, a strong subclass of StringRef that references
compile-time constant strings. It's convertible to, but not from, ordinary
StringRef and thus can be used to add compile-time safety to various interfaces
in LLVM and clang that only accept fixed inputs such as diagnostic format
strings that tend to get misused.
llvm-svn: 200187
2014-01-27 04:07:17 +00:00
8a8cd2bab9
Re-sort all of the includes with ./utils/sort_includes.py so that
...
subsequent changes are easier to review. About to fix some layering
issues, and wanted to separate out the necessary churn.
Also comment and sink the include of "Windows.h" in three .inc files to
match the usage in Memory.inc.
llvm-svn: 198685
2014-01-07 11:48:04 +00:00
00e24e48b6
Add {start,end}with_lower methods to StringRef.
...
startswith_lower is ocassionally useful and I think worth adding.
endwith_lower is added for completeness.
Differential Revision: http://llvm-reviews.chandlerc.com/D2041
llvm-svn: 193706
2013-10-30 18:32:26 +00:00
b6decb0a80
Add a few tests for StringRef::{start,end}with.
...
llvm-svn: 193550
2013-10-28 22:42:54 +00:00
6c4dc2b218
Add a Python-like join function to merge a list of strings with a
...
separator between each two elements.
llvm-svn: 189846
2013-09-03 20:43:54 +00:00
130cec21b9
Sort the #include lines for unittest/...
...
llvm-svn: 169250
2012-12-04 10:23:08 +00:00
85a62b1a1d
Use unsigned long long instead of uin64_t for OS where that matters.
...
llvm-svn: 165147
2012-10-03 19:27:25 +00:00
d95ceff092
Don't call getAsUnsignedInteger directly, it fails to compile if uint64_t is not "unsigned long long".
...
while there add more test cases.
llvm-svn: 165140
2012-10-03 18:54:36 +00:00
f8a75eef85
Add getAsUnsignedInteger test case that checks that known bad values are rejected
...
llvm-svn: 165136
2012-10-03 18:15:27 +00:00
93303819ac
[Support/StringRef] Add find_last_not_of and {r,l,}trim.
...
llvm-svn: 156652
2012-05-11 22:08:50 +00:00
914dc77dfc
Fix warnings.
...
llvm-svn: 152522
2012-03-11 00:51:01 +00:00
cfa95f66a1
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
ca99ad3f0d
Add generic support for hashing StringRef objects using the new hashing library.
...
llvm-svn: 152003
2012-03-04 10:55:27 +00:00
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
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
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
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
2114b762de
Don't infinitely recurse! Patch by Marius Wachtler!
...
llvm-svn: 124366
2011-01-27 07:35:27 +00:00
9bf0380a54
StringRef::compare_numeric also differed from StringRef::compare for characters > 127.
...
llvm-svn: 112189
2010-08-26 15:25:35 +00:00
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
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
738800dd1d
Silence compiler warning.
...
warning: comparison between signed and unsigned integer expressions
llvm-svn: 92359
2009-12-31 16:27:13 +00:00
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
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
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
99b5bd9074
Reenable Split2 StringRef test with Apple gcc.
...
llvm-svn: 89357
2009-11-19 16:04:41 +00:00
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
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
7c6854995d
Switch to smallvector. Also fix issue with using unsigend for MaxSplit.
...
llvm-svn: 87068
2009-11-13 02:18:25 +00:00
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
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
4498168753
Add StringRef::{rfind, rsplit}
...
llvm-svn: 82087
2009-09-16 22:38:48 +00:00
3828a99ba6
Fix pasto in StringRef::count(char)
...
llvm-svn: 79356
2009-08-18 18:34:22 +00:00
5736db6527
Add StringRef::count({char,StringRef})
...
llvm-svn: 79354
2009-08-18 18:26:35 +00:00
a1e04d43c4
StringRef: Add find(char) and find(StringRef).
...
Also, regroup functions.
llvm-svn: 78712
2009-08-11 20:47:15 +00:00
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
e23388b25c
Support writing a StringRef to a raw_ostream directly.
...
llvm-svn: 76754
2009-07-22 17:13:20 +00:00
1f982105a6
Add StringRef::{substr, startswith}.
...
llvm-svn: 76559
2009-07-21 09:18:49 +00:00
25f9fc5851
Add StringRef class, with fixes.
...
llvm-svn: 76543
2009-07-21 07:28:51 +00:00
Chandler Carruth