clang-p2996

Files

Erik Desjardins 87d02e0dfd Recommit "[Support] change StringMap hash function from djbHash to xxHash"

This reverts commit 37eb9d13f8.

Test failures have been fixed:

- ubsan failure fixed by 72eac42f21
- warn-unsafe-buffer-usage-fixits-local-var-span.cpp fixed by
  03cc52dfd1 (wasn't related)
- test-output-format.ll failure was spurious, build failed at
  https://lab.llvm.org/buildbot/#/builders/54/builds/3545 (b4431b2d94)
  but passed at
  https://lab.llvm.org/buildbot/#/builders/54/builds/3546 (5ae99be037)
  which is before my revert
  b4431b2d94...5ae99be037

Original commit message:

    Depends on https://reviews.llvm.org/D142861.

    Alternative to https://reviews.llvm.org/D137601.

    xxHash is much faster than djbHash. This makes a simple Rust test case with a large constant string 10% faster to compile.

    Previous attempts at changing this hash function (e.g. https://reviews.llvm.org/D97396) had to be reverted due to breaking tests that depended on iteration order.
    No additional tests fail with this patch compared to `main` when running `check-all` with `-DLLVM_ENABLE_PROJECTS="all"` (on a Linux host), so I hope I found everything that needs to be changed.

    Differential Revision: https://reviews.llvm.org/D142862

2023-02-19 16:52:26 -05:00

bindings

Add clang_CXXMethod_isExplicit to libclang

2023-01-27 13:23:41 +01:00

cmake

Revert "[Fuchsia] Enable llvm-driver build"

2023-02-17 21:29:14 +00:00

docs

[Clang] Fix __VA_OPT__ implementation so that it treats the concatenation of a non-placemaker token and placemaker token as a non-placemaker token

2023-02-17 14:57:32 -08:00

examples

…

include

[WebAssembly] Initial support for reference type externref in clang

2023-02-17 18:48:48 -08:00

lib

Use APInt::popcount instead of APInt::countPopulation (NFC)

2023-02-19 11:29:12 -08:00

runtime

[NFC] Add split-file as runtime test dependency

2023-02-02 11:22:26 -08:00

test

[RISCV][MC] Mark Zawrs extension as non-experimental

2023-02-19 20:43:03 +00:00

tools

[clang-format] Handle tabs in file path for git-clang-format

2023-02-18 12:56:46 -08:00

unittests

Recommit "[Support] change StringMap hash function from djbHash to xxHash"

2023-02-19 16:52:26 -05:00

utils

[Clang][RISCV] Guard vector int64, float32, float64 with semantic analysis

2023-02-14 17:38:25 -08:00

www

[C2x] Implement the unreachable macro for WG14 N2826

2023-02-15 14:43:01 -05:00

.clang-format

…

.clang-tidy

…

.gitignore

…

CMakeLists.txt

[Clang] Add llvm-mt and llvm-rc to Clang bootstrap dependency

2023-02-06 11:36:27 -08:00

CodeOwners.rst

[NFC]Fix github identification.

2023-01-20 08:40:38 -08:00

INSTALL.txt

…

LICENSE.TXT

…

ModuleInfo.txt

…

NOTES.txt

…

README.txt

…

README.txt

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM
compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things
beyond just compiling code: we intend for Clang to be host to a number of
different source-level tools.  One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read
the relevant web sites.  Here are some pointers:

Information on Clang:             http://clang.llvm.org/
Building and using Clang:         http://clang.llvm.org/get_started.html
Clang Static Analyzer:            http://clang-analyzer.llvm.org/
Information on the LLVM project:  http://llvm.org/

If you have questions or comments about Clang, a great place to discuss them is
on the Clang forums:
  https://discourse.llvm.org/c/clang/

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/