Commit Graph

11 Commits

Author SHA1 Message Date
Fangrui Song 2d2cb77e45 [ADT] Implement llvm::bsearch() with std::partition_point()
Summary:
Delete the begin-end form because the standard std::partition_point
can be easily used as a replacement.

The ranges-style llvm::bsearch will be renamed to llvm::partition_point
in the next clean-up patch.

The name "bsearch" doesn't meet people's expectation because in C:

> If two or more members compare equal, which member is returned is unspecified.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D63718

llvm-svn: 364719
2019-06-30 09:17:59 +00:00
Sam McCall 277754c71d [clangd] lower_bound -> bsearch, NFC
llvm-svn: 358561
2019-04-17 07:00:36 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Ilya Biryukov f2001aa743 [clangd] Remove 'using namespace llvm' from .cpp files. NFC
The new guideline is to qualify with 'llvm::' explicitly both in
'.h' and '.cpp' files. This simplifies moving the code between
header and source files and is easier to keep consistent.

llvm-svn: 350531
2019-01-07 15:45:19 +00:00
Sam McCall c008af6466 [clangd] Namespace style cleanup in cpp files. NFC.
Standardize on the most common namespace setup in our *.cpp files:
  using namespace llvm;
  namespace clang {
  namespace clangd {
  void foo(StringRef) { ... }
And remove redundant llvm:: qualifiers. (Except for cases like
make_unique where this causes problems with std:: and ADL).

This choice is pretty arbitrary, but some broad consistency is nice.
This is going to conflict with everything. Sorry :-/

Squash the other configurations:

A)
  using namespace llvm;
  using namespace clang;
  using namespace clangd;
  void clangd::foo(StringRef);
This is in some of the older files. (It prevents accidentally defining a
new function instead of one in the header file, for what that's worth).

B)
  namespace clang {
  namespace clangd {
  void foo(llvm::StringRef) { ... }
This is fine, but in practice the using directive often gets added over time.

C)
  namespace clang {
  namespace clangd {
  using namespace llvm; // inside the namespace
This was pretty common, but is a bit misleading: name lookup preferrs
clang::clangd::foo > clang::foo > llvm:: foo (no matter where the using
directive is).

llvm-svn: 344850
2018-10-20 15:30:37 +00:00
Sam McCall a659d779f8 Reland r343589 "[clangd] Dex: add Corpus factory for iterators, rename, fold constant. NFC""
This reverts commit r343610.

llvm-svn: 343622
2018-10-02 19:59:23 +00:00
Reid Kleckner 2b5259afb3 Revert r343589 "[clangd] Dex: add Corpus factory for iterators, rename, fold constant. NFC"
Declaring a field with the same name as a type causes GCC to error out:

Dex.h:104:10: error: declaration of 'clang::clangd::dex::Corpus clang::clangd::dex::Dex::Corpus' [-fpermissive]
   Corpus Corpus;
          ^
Iterator.h:127:7: error: changes meaning of 'Corpus' from 'class clang::clangd::dex::Corpus' [-fpermissive]
 class Corpus {

llvm-svn: 343610
2018-10-02 17:31:43 +00:00
Sam McCall a1e7385d5c [clangd] Dex: add Corpus factory for iterators, rename, fold constant. NFC
Summary:
- Corpus avoids having to pass size to the true iterator, and (soon) any
  iterator that might optimize down to true.
- Shorten names of factory functions now they're scoped to the Corpus.
  intersect() and unionOf() rather than createAnd() or createOr() as this
  seems to read better to me, and fits with other short names. Opinion wanted!
- DEFAULT_BOOST_SCORE --> 1. This is a multiplier, don't obfuscate identity.
- Simplify variadic templates in Iterator.h

Reviewers: ioeric

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D52711

llvm-svn: 343589
2018-10-02 13:44:26 +00:00
Sam McCall 7402836042 [clangd] Dex iterator printer shows query structure, not iterator state.
Summary:
This makes it suitable for logging (which immediately found a bug, to
be fixed in the next patch...)

Reviewers: ioeric

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D52715

llvm-svn: 343580
2018-10-02 11:51:36 +00:00
Kirill Bobyrev 6c2f5bd0f1 [clangd] Implement VByte PostingList compression
This patch implements Variable-length Byte compression of `PostingList`s
to sacrifice some performance for lower memory consumption.

`PostingList` compression and decompression was extensively tested using
fuzzer for multiple hours and runnning significant number of realistic
`FuzzyFindRequests`. AddressSanitizer and UndefinedBehaviorSanitizer
were used to ensure the correct behaviour.

Performance evaluation was conducted with recent LLVM symbol index (292k
symbols) and the collection of user-recorded queries (7751
`FuzzyFindRequest` JSON dumps):

| Metrics | Before| After | Change (%)
| -----  | -----  | -----   | -----
| Memory consumption (posting lists only), MB  |  54.4 | 23.5 | -60%
| Time to process queries, sec | 7.70 | 9.4 | +25%

Reviewers: sammccall, ioeric

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D52300

llvm-svn: 342965
2018-09-25 11:54:51 +00:00
Kirill Bobyrev 249c5864cf [clangd] Introduce PostingList interface
This patch abstracts `PostingList` interface and reuses existing
implementation. It will be used later to test different `PostingList`
representations.

No functionality change is introduced, this patch is mostly refactoring
so that the following patches could focus on functionality while not
being too hard to review.

Reviewed By: sammccall, ioeric

Differential Revision: https://reviews.llvm.org/D51982

llvm-svn: 342155
2018-09-13 17:11:03 +00:00