Commit Graph

14 Commits

Author SHA1 Message Date
Nathan James 00c7d6699a
[cte][NFC] Remove all references to stdlib stream headers.
Inclusion of iostream is frobidden and using other stream classes from standard library is discouraged as per https://llvm.org/docs/CodingStandards.html#include-iostream-is-forbidden

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D97771
2021-03-02 21:57:16 +00:00
Utkarsh Saxena bf935a034b [clangd] Make categorical features 64 bit in DecisionForest Model.
CodeCompletionContext::Kind has 36 Kinds. The completion model used to
support categorical features of 32 cardinality.
Due to this clangd tests were failing asan tests due to overflow.

This patch makes the completion model support 64 cardinality of
categorical features by storing ENUM Features as uint64_t instead of
uint32_t.

Verified that this fixes the asan failures.

Latency: 6.7ms (old) VS 6.8ms (new) per 1000 predictions.

Differential Revision: https://reviews.llvm.org/D97770
2021-03-02 16:22:30 +01:00
Utkarsh Saxena bad8e577f9
Fix DecisionForestBenchmark.cpp compile errors
clang-tools-extra/clangd/benchmarks/CompletionModel/DecisionForestBenchmark.cpp fails to compile since `"CompletionModel.h"` is auto-generated from clang-tools-extra/clangd/quality/model/features.json, which was changed in https://reviews.llvm.org/D94697 to remove `setFilterLength` and `setIsForbidden`, rename `setFileProximityDistance` and `setSymbolScopeDistance`, and add `setNumNameInContext` and `setFractionNameInContext`.  This patch removes calls to the two removed functions, updates calls to the two renamed functions, and adds calls to the two new functions. (`20` is an arbitrary choice for the `setNumNameInContext` argument.) It also changes the `FlipCoin` argument from float to double to silence lossy conversion warnings.

Note: I don't use this tool but encountered the build errors and took a shot at fixing them. Please holler if there's another recommended solution. Thanks!

Reviewed By: usaxena95

Differential Revision: https://reviews.llvm.org/D97620
2021-03-02 10:27:46 +01:00
Utkarsh Saxena db2a646c5f [clangd] Add bencmark for measuring latency of DecisionForest model.
Differential Revision: https://reviews.llvm.org/D88590
2020-10-02 18:04:31 +02:00
Sam McCall fa69b60806 [JSON] Add error reporting to fromJSON and ObjectMapper
Translating between JSON objects and C++ strutctures is common.
From experience in clangd, fromJSON/ObjectMapper work well and save a lot of
code, but aren't adopted elsewhere at least partly due to total lack of error
reporting beyond "ok"/"bad".

The recently-added error model should be rich enough for most applications.
It requires tracking the path within the root object and reporting local
errors at appropriate places.
To do this, we exploit the fact that the call graph of recursive
parse functions mirror the structure of the JSON itself.
The current path is represented as a linked list of segments, each of which is
on the stack as a parameter. Concretely, fromJSON now looks like:
  bool fromJSON(const Value&, T&, Path);

Beyond the signature change, this is reasonably unobtrusive: building
the path segments is mostly handled by ObjectMapper and the vector<T> fromJSON.
However the root caller of fromJSON must now create a Root object to
store the errors, which is a little clunky.

I've added high-level parse<T>(StringRef) -> Expected<T>, but it's not
general enough to be the primary interface I think (at least, not usable in
clangd).

All existing users (mostly just clangd) are updated in this patch,
making this change backwards-compatible is a bit hairy.

Differential Revision: https://reviews.llvm.org/D88103
2020-09-24 01:20:09 +02:00
Sam McCall 735ab46cb4 [clangd] Don't create as much garbage while building Dex index.
Summary:
The Token objects are relatively expensive and we were spending a lot of
CPU creating them for each trigram emitted. Instead, use a tiny trigram
structure until we're ready to finalize the index.

This improves the new BuildDex benchmark by 20%. This code is hot and on
the critical path in clangd: it runs after a new preamble is built.

Reviewers: kbobyrev

Subscribers: ilya-biryukov, MaskRay, jkorous, mgrang, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D79918
2020-05-14 13:35:44 +02:00
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
Ilya Biryukov d60c289625 [clangd] Fix compilation of IndexBenchmark
llvm-svn: 347566
2018-11-26 15:58:29 +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 02d600d267 [clangd] Merge binary + YAML serialization behind a (mostly) common interface.
Summary:
Interface is in one file, implementation in two as they have little in common.
A couple of ad-hoc YAML functions left exposed:
 - symbol -> YAML I expect to keep for tools like dexp
 - YAML -> symbol is used for the MR-style indexer, I think we can eliminate
   this (merge-on-the-fly, else use a different serialization)

Reviewers: kbobyrev

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

Differential Revision: https://reviews.llvm.org/D52453

llvm-svn: 342999
2018-09-25 18:06:43 +00:00
Kirill Bobyrev 2fcdf76eef [clangd] NFC: Fix IndexBenchmark CLI arguments handling
llvm-svn: 342227
2018-09-14 12:21:09 +00:00
Kirill Bobyrev 60be1f59bd [clangd] Use JSON format in benchmark requests reader
After `FuzzyFindRequest` JSON (de)serialization was introduced, it
should replace ad-hoc fuzzy-find request parsing implemented in the
IndexBenchmark driver.

Reviewed By: ilya-biryukov

Differential Revision: https://reviews.llvm.org/D51971

llvm-svn: 342137
2018-09-13 14:21:50 +00:00
Kirill Bobyrev 73c201da51 [clangd] Add index benchmarks
This patch introduces index benchmarks on top of the proposed LLVM
benchmark pull.

Reviewed By: sammccall, lebedev.ri

Differential Revision: https://reviews.llvm.org/D51090

llvm-svn: 342026
2018-09-12 07:49:44 +00:00