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Sam Clegg 210cbcf476 [WebAssemlby][Object] Fix dead code in WasmObjectFile.cpp
I introduced this by mistake in https://reviews.llvm.org/D109595.

Differential Revision: https://reviews.llvm.org/D110717
2021-09-29 08:09:57 -07:00
.github Removing the main to master sync GitHub workflow. 2021-01-28 12:18:25 -08:00
clang Use rm -f to fix Windows failures from test changes 2021-09-29 08:01:22 -07:00
clang-tools-extra Revert 9b944c1843 with fixes 2021-09-29 08:00:45 -04:00
compiler-rt [ORC-RT] Add target dependencies to ORC-RT regression tests. 2021-09-28 22:08:47 -07:00
cross-project-tests Reapply "[Dexter] Improve performance by evaluating expressions only when needed" 2021-09-24 10:38:19 +01:00
flang [Flang] Fix failing plugin tests 2021-09-29 09:27:11 +00:00
libc [libc] Add support for 128 bit ints in limits.h 2021-09-28 23:50:16 +00:00
libclc libclc: Fix rounding during type conversion 2021-08-19 22:24:19 -07:00
libcxx [libcxx] Run u16string tests for gdb pretty printers 2021-09-29 09:47:16 +01:00
libcxxabi [demangle] Support for ISO/IEC TS 18661 binary floating point type 2021-09-23 11:02:58 +08:00
libunwind [libunwind] Support cfi_undefined and cfi_register for float registers. 2021-09-27 12:04:02 +02:00
lld Use rm -f to fix Windows failures from test changes 2021-09-29 08:01:22 -07:00
lldb [lldb] Fix TestImportStdModule on some setups by testing minmax instead of abs 2021-09-29 17:03:37 +02:00
llvm [WebAssemlby][Object] Fix dead code in WasmObjectFile.cpp 2021-09-29 08:09:57 -07:00
mlir Introduced AllocationOpInterface to create deallocation operations on-the-fly that are compatible with the allocation operation implementing this interface. 2021-09-29 15:54:21 +02:00
openmp [libomptarget][amdgpu] Follow on to D110513, empty kernarg pools are not fatal 2021-09-27 22:44:35 +01:00
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pstl [libc++] Remove test-suite annotations for unsupported Clang versions 2021-08-20 15:05:13 -04:00
runtimes [LLVM][CMake][NFC] Resolve FIXME: Rename LLVM_CMAKE_PATH to LLVM_CMAKE_DIR throughout the project 2021-09-16 18:29:57 +02:00
utils [Bazel] fix for aa53785f23 2021-09-29 10:52:53 +02:00
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.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
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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.