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Kazushi (Jam) Marukawa 3ed12232b0 [VE] half fptrunc+store&load+fpext
Summary:
fp16 (half) load+fpext and fptrunc+store isel legalization and tests.
Also, ExternalSymbolSDNode operand printing (tested by fp16 lowering).

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D73899
2020-02-04 17:16:09 +01:00
clang [SystemZ] Add 'REQUIRES:' or '-mtriple' to some newly added tests. 2020-02-04 10:52:10 -05:00
clang-tools-extra Revert "[clangd] Mechanism to make update debounce responsive to rebuild speed." 2020-02-04 15:34:10 +01:00
compiler-rt hwasan_symbolize: allow 0x in the address field 2020-02-03 18:23:48 -08:00
debuginfo-tests Add GDB pretty printers for llvm::ilist, llvm::simple_ilist, and llvm::ilist_node. 2020-01-30 09:35:49 +01:00
libc [libc] Use cpp::Array instead of cpp::ArrayRef in memory/utils_test. 2020-01-31 11:45:09 -08:00
libclc libclc: Drop the old python based build system 2019-11-08 09:59:40 -05:00
libcxx Revert "[libcxx] Force-cache LIBCXX_CXX_ABI_LIBRARY_PATH" 2020-02-03 11:03:58 +01:00
libcxxabi [libcxxabi] Fix layout of __cxa_exception for win64 2020-02-03 09:55:02 +02:00
libunwind Fix a -Wbitwise-conditional-parentheses warning in _LIBUNWIND_ARM_EHABI libunwind builds 2020-02-03 14:17:50 -05:00
lld [ELF][Mips] Drop an unneeded config->relocatable check 2020-01-31 21:00:28 -08:00
lldb [lldb] [testsuite] Fixup: generalize `DWARFASTParserClangTests` based on `DWARFExpressionTest`'s YAML 2020-02-04 15:03:09 +01:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [VE] half fptrunc+store&load+fpext 2020-02-04 17:16:09 +01:00
mlir [mlir][spirv] Wrap debug-only method in #ifndef NDEBUG 2020-02-04 08:57:29 -05:00
openmp [OpenMP][OMPT] fix reduction test for 32-bit x86 2020-02-04 12:19:10 +01:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [Polly] Fix compilation after 105642af5eef: include PassManagerImpl.h 2020-02-04 08:22:22 -06:00
pstl Bump the trunk major version to 11 2020-01-15 13:38:01 +01:00
.arcconfig Include phabricator.uri in .arcconfig 2020-01-23 11:50:18 -08:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.git-blame-ignore-revs Add LLDB reformatting to .git-blame-ignore-revs 2019-09-04 09:31:55 +00:00
.gitignore Add a newline at the end of the file 2019-09-04 06:33:46 +00:00
CONTRIBUTING.md Add contributing info to CONTRIBUTING.md and README.md 2019-12-02 15:47:15 +00:00
README.md Add contributing info to CONTRIBUTING.md and README.md 2019-12-02 15:47:15 +00:00

README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime 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 converts it 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 workflow and configuration to get and build the LLVM source:

  1. Checkout LLVM (including related subprojects 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

    • mkdir build

    • cd build

    • cmake -G <generator> [options] ../llvm

      Some common 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 subprojects you'd like to additionally build. Can include any of: clang, clang-tools-extra, libcxx, libcxxabi, libunwind, lldb, compiler-rt, lld, polly, or debuginfo-tests.

        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 pathname 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).

    • Run your build tool of choice!

      • 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 build 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 make -j NNN (NNN is the number of parallel jobs, use e.g. 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.