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Roman Lebedev 200edc152b
[NFC][X86][LV] Add basic costmodel test coverage for not-fully-interleaved i32 loads
The coverage could have cumulative explosion here,
so i'm adding only the most basic cases,
and hoping it's enough, though more can be added if needed.
2021-10-05 19:39:50 +03:00
.github Removing the main to master sync GitHub workflow. 2021-01-28 12:18:25 -08:00
clang [clang] FatalErrorHandler.cpp - add explicit <stdio.h> include 2021-10-05 17:03:17 +01:00
clang-tools-extra [clang-tidy] Fix add_new_check.py to generate correct list.rst autofix column from relative path 2021-10-05 18:09:53 +02:00
compiler-rt tsan: improve detection of stack/tls races 2021-10-05 15:32:39 +02:00
cross-project-tests Reapply "[Dexter] Improve performance by evaluating expressions only when needed" 2021-09-24 10:38:19 +01:00
flang [fir] Split FIROptimizer lib into several smaller libraries 2021-10-05 14:02:32 +02:00
libc [libc][NFC] Add supporting class for atof implementation 2021-10-04 21:08:02 +00:00
libclc libclc: Fix rounding during type conversion 2021-08-19 22:24:19 -07:00
libcxx [libc++][test] Remove unused macro in is_constructible.pass.cpp. NFC. 2021-10-05 10:15:24 -04:00
libcxxabi [Demangle][Rust] Parse non-ASCII identifiers 2021-10-01 22:08:32 +02:00
libunwind [libunwind] Fix cfi_register for float registers. 2021-10-01 16:51:51 +02:00
lld [ELF][test] Enhance relative dynamic relocation tests 2021-10-05 11:32:22 +01:00
lldb [lldb testing] Avoid subtle terminfo behavioral differences 2021-10-05 10:28:02 -04:00
llvm [NFC][X86][LV] Add basic costmodel test coverage for not-fully-interleaved i32 loads 2021-10-05 19:39:50 +03:00
mlir [mlir][sparse] add a "release" operation to sparse tensor dialect 2021-10-05 09:35:59 -07:00
openmp [openmp] [elf_common] Fix linking against LLVM dylib 2021-10-04 09:29:06 +02:00
parallel-libs Reapply "Try enabling -Wsuggest-override again, using add_compile_options instead of add_compile_definitions for disabling it in unittests/ directories." 2020-07-22 17:50:19 -07:00
polly [NFC] Fix build failure in ScopDetection 2021-10-04 09:19:27 -07:00
pstl [libc++] Remove test-suite annotations for unsupported Clang versions 2021-08-20 15:05:13 -04:00
runtimes [runtimes] Set a default value for LLVM_LIT_ARGS 2021-10-05 10:45:44 +03:00
utils [mlir][Linalg] Refactor comprehensive bufferize for external uses - NFC 2021-09-30 20:21:08 +00:00
.arcconfig Add modern arc config for default "onto" branch 2021-02-22 11:58:13 -08:00
.arclint PR46997: don't run clang-format on clang's testcases. 2020-08-04 17:53:25 -07:00
.clang-format Revert "Title: [RISCV] Add missing part of instruction vmsge {u}. VX Review By: craig.topper Differential Revision : https://reviews.llvm.org/D100115" 2021-04-14 08:04:37 +01:00
.clang-tidy .clang-tidy: Disable misc-no-recursion in general/across the monorepo 2021-06-08 08:31:33 -07:00
.git-blame-ignore-revs [lldb] Add 9494c510af to .git-blame-ignore-revs 2021-06-10 09:29:59 -07:00
.gitignore [NFC] Add CMakeUserPresets.json filename to .gitignore 2021-01-22 12:45:29 +01:00
.mailmap [mailmap] Add entry for myself 2021-09-22 10:12:16 -04:00
CONTRIBUTING.md
README.md [NFC] Update the list of subprojects in docs. 2021-09-21 17:27:13 +02:00
SECURITY.md [docs] Describe reporting security issues on the chromium tracker. 2021-05-19 15:21:50 -07:00

README.md

The LLVM Compiler Infrastructure

This directory and its sub-directories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.

The README briefly describes how to get started with building LLVM. For more information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.

Getting Started with the LLVM System

Taken from https://llvm.org/docs/GettingStarted.html.

Overview

Welcome to the LLVM project!

The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer. It also contains basic regression tests.

C-like languages use the Clang front end. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.

Other components include: the libc++ C++ standard library, the LLD linker, and more.

Getting the Source Code and Building LLVM

The LLVM Getting Started documentation may be out of date. The Clang Getting Started page might have more accurate information.

This is an example work-flow and configuration to get and build the LLVM source:

  1. Checkout LLVM (including related sub-projects like Clang):

    • git clone https://github.com/llvm/llvm-project.git

    • Or, on windows, git clone --config core.autocrlf=false https://github.com/llvm/llvm-project.git

  2. Configure and build LLVM and Clang:

    • cd llvm-project

    • cmake -S llvm -B build -G <generator> [options]

      Some common build system generators are:

      • Ninja --- for generating Ninja build files. Most llvm developers use Ninja.
      • Unix Makefiles --- for generating make-compatible parallel makefiles.
      • Visual Studio --- for generating Visual Studio projects and solutions.
      • Xcode --- for generating Xcode projects.

      Some Common options:

      • -DLLVM_ENABLE_PROJECTS='...' --- semicolon-separated list of the LLVM sub-projects you'd like to additionally build. Can include any of: clang, clang-tools-extra, compiler-rt,cross-project-tests, flang, libc, libclc, libcxx, libcxxabi, libunwind, lld, lldb, mlir, openmp, parallel-libs, polly, or pstl.

        For example, to build LLVM, Clang, libcxx, and libcxxabi, use -DLLVM_ENABLE_PROJECTS="clang;libcxx;libcxxabi".

      • -DCMAKE_INSTALL_PREFIX=directory --- Specify for directory the full path name of where you want the LLVM tools and libraries to be installed (default /usr/local).

      • -DCMAKE_BUILD_TYPE=type --- Valid options for type are Debug, Release, RelWithDebInfo, and MinSizeRel. Default is Debug.

      • -DLLVM_ENABLE_ASSERTIONS=On --- Compile with assertion checks enabled (default is Yes for Debug builds, No for all other build types).

    • cmake --build build [-- [options] <target>] or your build system specified above directly.

      • The default target (i.e. ninja or make) will build all of LLVM.

      • The check-all target (i.e. ninja check-all) will run the regression tests to ensure everything is in working order.

      • CMake will generate targets for each tool and library, and most LLVM sub-projects generate their own check-<project> target.

      • Running a serial build will be slow. To improve speed, try running a parallel build. That's done by default in Ninja; for make, use the option -j NNN, where NNN is the number of parallel jobs, e.g. the number of CPUs you have.

    • For more information see CMake

Consult the Getting Started with LLVM page for detailed information on configuring and compiling LLVM. You can visit Directory Layout to learn about the layout of the source code tree.