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homebrew-core/Formula/llvm.rb

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class Llvm < Formula
desc "Next-gen compiler infrastructure"
homepage "https://llvm.org/"
revision 3
head "https://github.com/llvm/llvm-project.git"
stable do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/llvm-10.0.0.src.tar.xz"
sha256 "df83a44b3a9a71029049ec101fb0077ecbbdf5fe41e395215025779099a98fdf"
resource "clang" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/clang-10.0.0.src.tar.xz"
sha256 "885b062b00e903df72631c5f98b9579ed1ed2790f74e5646b4234fa084eacb21"
end
resource "clang-tools-extra" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/clang-tools-extra-10.0.0.src.tar.xz"
sha256 "acdf8cf6574b40e6b1dabc93e76debb84a9feb6f22970126b04d4ba18b92911c"
end
resource "compiler-rt" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/compiler-rt-10.0.0.src.tar.xz"
sha256 "6a7da64d3a0a7320577b68b9ca4933bdcab676e898b759850e827333c3282c75"
end
resource "libcxx" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/libcxx-10.0.0.src.tar.xz"
sha256 "270f8a3f176f1981b0f6ab8aa556720988872ec2b48ed3b605d0ced8d09156c7"
end
resource "libunwind" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/libunwind-10.0.0.src.tar.xz"
sha256 "09dc5ecc4714809ecf62908ae8fe8635ab476880455287036a2730966833c626"
end
resource "lld" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/lld-10.0.0.src.tar.xz"
sha256 "b9a0d7c576eeef05bc06d6e954938a01c5396cee1d1e985891e0b1cf16e3d708"
end
resource "lldb" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/lldb-10.0.0.src.tar.xz"
sha256 "dd1ffcb42ed033f5167089ec4c6ebe84fbca1db4a9eaebf5c614af09d89eb135"
end
resource "openmp" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/openmp-10.0.0.src.tar.xz"
sha256 "3b9ff29a45d0509a1e9667a0feb43538ef402ea8cfc7df3758a01f20df08adfa"
end
resource "polly" do
url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.0/polly-10.0.0.src.tar.xz"
sha256 "35fba6ed628896fe529be4c10407f1b1c8a7264d40c76bced212180e701b4d97"
end
end
bottle do
cellar :any
sha256 "ea9b9f579df49499d9ab0084e10edecc5350298d6c5db399a1dabc8694dab7db" => :catalina
sha256 "14f59a25e73e3a00fd36632f2106b41eda1b54aa1039b4b979bd957a8c041bf4" => :mojave
sha256 "6e09ca233790a58edae55bba453fd50179369b5514acb5f8b86156401227a75e" => :high_sierra
end
# Clang cannot find system headers if Xcode CLT is not installed
pour_bottle? do
reason "The bottle needs the Xcode CLT to be installed."
satisfy { MacOS::CLT.installed? }
end
keg_only :provided_by_macos
# https://llvm.org/docs/GettingStarted.html#requirement
# We intentionally use Make instead of Ninja.
# See: Homebrew/homebrew-core/issues/35513
depends_on "cmake" => :build
depends_on "python@3.8" => :build
depends_on :xcode => :build
depends_on "libffi"
uses_from_macos "libedit"
uses_from_macos "libxml2"
uses_from_macos "ncurses"
uses_from_macos "zlib"
def install
projects = %w[
clang
clang-tools-extra
lld
lldb
openmp
polly
]
runtimes = %w[
compiler-rt
libcxx
libunwind
]
llvmpath = buildpath/"llvm"
unless build.head?
llvmpath.install buildpath.children - [buildpath/".brew_home"]
(projects + runtimes).each { |p| resource(p).stage(buildpath/p) }
end
# Needed until https://reviews.llvm.org/D63883 lands again.
# Use system libcxxabi.
rm_r "libcxxabi" if build.head?
py_ver = "3.8"
# Apple's libstdc++ is too old to build LLVM
ENV.libcxx if ENV.compiler == :clang
# compiler-rt has some iOS simulator features that require i386 symbols
# I'm assuming the rest of clang needs support too for 32-bit compilation
# to work correctly, but if not, perhaps universal binaries could be
# limited to compiler-rt. llvm makes this somewhat easier because compiler-rt
# can almost be treated as an entirely different build from llvm.
ENV.permit_arch_flags
args = %W[
-DLLVM_ENABLE_PROJECTS=#{projects.join(";")}
-DLLVM_ENABLE_RUNTIMES=#{runtimes.join(";")}
-DLIBOMP_ARCH=x86_64
-DLLVM_POLLY_LINK_INTO_TOOLS=ON
-DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON
-DLLVM_LINK_LLVM_DYLIB=ON
-DLLVM_BUILD_LLVM_C_DYLIB=ON
-DLLVM_ENABLE_EH=ON
-DLLVM_ENABLE_FFI=ON
-DLLVM_ENABLE_LIBCXX=ON
-DLLVM_ENABLE_RTTI=ON
-DLLVM_INCLUDE_DOCS=OFF
-DLLVM_INCLUDE_TESTS=OFF
-DLLVM_INSTALL_UTILS=ON
-DLLVM_ENABLE_Z3_SOLVER=OFF
-DLLVM_OPTIMIZED_TABLEGEN=ON
-DLLVM_TARGETS_TO_BUILD=all
-DFFI_INCLUDE_DIR=#{Formula["libffi"].opt_lib}/libffi-#{Formula["libffi"].version}/include
-DFFI_LIBRARY_DIR=#{Formula["libffi"].opt_lib}
-DLLVM_CREATE_XCODE_TOOLCHAIN=ON
-DLLDB_USE_SYSTEM_DEBUGSERVER=ON
-DLLDB_ENABLE_PYTHON=OFF
-DLLDB_ENABLE_LUA=OFF
-DLLDB_ENABLE_LZMA=OFF
-DLIBOMP_INSTALL_ALIASES=OFF
-DCLANG_PYTHON_BINDINGS_VERSIONS=#{py_ver}
]
sdk = MacOS.sdk_path_if_needed
args << "-DDEFAULT_SYSROOT=#{sdk}" if sdk
mkdir llvmpath/"build" do
system "cmake", "-G", "Unix Makefiles", "..", *(std_cmake_args + args)
system "make"
system "make", "install"
system "make", "install-xcode-toolchain"
end
# Install LLVM Python bindings
# Clang Python bindings are installed by CMake
(lib/"python#{py_ver}/site-packages").install llvmpath/"bindings/python/llvm"
# Install Emacs modes
elisp.install Dir[llvmpath/"utils/emacs/*.el"] + Dir[share/"clang/*.el"]
end
def caveats
<<~EOS
To use the bundled libc++ please add the following LDFLAGS:
LDFLAGS="-L#{opt_lib} -Wl,-rpath,#{opt_lib}"
EOS
end
test do
assert_equal prefix.to_s, shell_output("#{bin}/llvm-config --prefix").chomp
(testpath/"omptest.c").write <<~EOS
#include <stdlib.h>
#include <stdio.h>
#include <omp.h>
int main() {
#pragma omp parallel num_threads(4)
{
printf("Hello from thread %d, nthreads %d\\n", omp_get_thread_num(), omp_get_num_threads());
}
return EXIT_SUCCESS;
}
EOS
clean_version = version.to_s[/(\d+\.?)+/]
system "#{bin}/clang", "-L#{lib}", "-fopenmp", "-nobuiltininc",
"-I#{lib}/clang/#{clean_version}/include",
"omptest.c", "-o", "omptest"
testresult = shell_output("./omptest")
sorted_testresult = testresult.split("\n").sort.join("\n")
expected_result = <<~EOS
Hello from thread 0, nthreads 4
Hello from thread 1, nthreads 4
Hello from thread 2, nthreads 4
Hello from thread 3, nthreads 4
EOS
assert_equal expected_result.strip, sorted_testresult.strip
(testpath/"test.c").write <<~EOS
#include <stdio.h>
int main()
{
printf("Hello World!\\n");
return 0;
}
EOS
(testpath/"test.cpp").write <<~EOS
#include <iostream>
int main()
{
std::cout << "Hello World!" << std::endl;
return 0;
}
EOS
# Testing default toolchain and SDK location.
system "#{bin}/clang++", "-v",
"-std=c++11", "test.cpp", "-o", "test++"
assert_includes MachO::Tools.dylibs("test++"), "/usr/lib/libc++.1.dylib"
assert_equal "Hello World!", shell_output("./test++").chomp
system "#{bin}/clang", "-v", "test.c", "-o", "test"
assert_equal "Hello World!", shell_output("./test").chomp
# Testing Command Line Tools
if MacOS::CLT.installed?
toolchain_path = "/Library/Developer/CommandLineTools"
system "#{bin}/clang++", "-v",
"-isysroot", MacOS::CLT.sdk_path,
"-isystem", "#{toolchain_path}/usr/include/c++/v1",
"-isystem", "#{toolchain_path}/usr/include",
"-isystem", "#{MacOS::CLT.sdk_path}/usr/include",
"-std=c++11", "test.cpp", "-o", "testCLT++"
assert_includes MachO::Tools.dylibs("testCLT++"), "/usr/lib/libc++.1.dylib"
assert_equal "Hello World!", shell_output("./testCLT++").chomp
system "#{bin}/clang", "-v", "test.c", "-o", "testCLT"
assert_equal "Hello World!", shell_output("./testCLT").chomp
end
# Testing Xcode
if MacOS::Xcode.installed?
system "#{bin}/clang++", "-v",
"-isysroot", MacOS::Xcode.sdk_path,
"-isystem", "#{MacOS::Xcode.toolchain_path}/usr/include/c++/v1",
"-isystem", "#{MacOS::Xcode.toolchain_path}/usr/include",
"-isystem", "#{MacOS::Xcode.sdk_path}/usr/include",
"-std=c++11", "test.cpp", "-o", "testXC++"
assert_includes MachO::Tools.dylibs("testXC++"), "/usr/lib/libc++.1.dylib"
assert_equal "Hello World!", shell_output("./testXC++").chomp
system "#{bin}/clang", "-v",
"-isysroot", MacOS.sdk_path,
"test.c", "-o", "testXC"
assert_equal "Hello World!", shell_output("./testXC").chomp
end
# link against installed libc++
# related to https://github.com/Homebrew/legacy-homebrew/issues/47149
system "#{bin}/clang++", "-v",
"-isystem", "#{opt_include}/c++/v1",
"-std=c++11", "-stdlib=libc++", "test.cpp", "-o", "testlibc++",
"-L#{opt_lib}", "-Wl,-rpath,#{opt_lib}"
assert_includes MachO::Tools.dylibs("testlibc++"), "#{opt_lib}/libc++.1.dylib"
assert_equal "Hello World!", shell_output("./testlibc++").chomp
(testpath/"scanbuildtest.cpp").write <<~EOS
#include <iostream>
int main() {
int *i = new int;
*i = 1;
delete i;
std::cout << *i << std::endl;
return 0;
}
EOS
assert_includes shell_output("#{bin}/scan-build clang++ scanbuildtest.cpp 2>&1"),
"warning: Use of memory after it is freed"
(testpath/"clangformattest.c").write <<~EOS
int main() {
printf("Hello world!"); }
EOS
assert_equal "int main() { printf(\"Hello world!\"); }\n",
shell_output("#{bin}/clang-format -style=google clangformattest.c")
end
end
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