66 lines
2.7 KiB
Ruby
66 lines
2.7 KiB
Ruby
class Enzyme < Formula
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desc "High-performance automatic differentiation of LLVM"
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homepage "https://enzyme.mit.edu"
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url "https://github.com/EnzymeAD/Enzyme/archive/v0.0.43.tar.gz", using: :homebrew_curl
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sha256 "42e375c3df0444e8f3abf0322a10f5183f2af5d9d459de44d83fbd93cd74675a"
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license "Apache-2.0" => { with: "LLVM-exception" }
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head "https://github.com/EnzymeAD/Enzyme.git", branch: "main"
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bottle do
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sha256 cellar: :any, arm64_monterey: "4ea2e37e6d81f7f6c6906ebc03e9cd3b3ca5938a754366a1ba2a47d0946b2289"
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sha256 cellar: :any, arm64_big_sur: "e9ce7b4822513e87d6e4c022272e6379c8c92f9ba401b21ac5e654de0e024c21"
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sha256 cellar: :any, monterey: "eb579b2efbcbe99d860613098978bf4679d7afc2ddedff08c142016af8d95879"
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sha256 cellar: :any, big_sur: "96a34921f5d81cde4b61b45d0d8c0431828da19880ce4bf4227d30229b860842"
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sha256 cellar: :any, catalina: "4950d16bc35f56f9e06b5b650702df62a28c6519320501beb6cf2cd8196c1e2d"
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sha256 cellar: :any_skip_relocation, x86_64_linux: "bb98fb290d952d993b1aa89da646be34b8b683d16b4ab077b12b3a1d8bfb421f"
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end
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depends_on "cmake" => :build
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depends_on "llvm"
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fails_with gcc: "5"
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def llvm
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deps.map(&:to_formula).find { |f| f.name.match?(/^llvm(@\d+)?$/) }
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end
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def install
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system "cmake", "-S", "enzyme", "-B", "build", "-DLLVM_DIR=#{llvm.opt_lib}/cmake/llvm", *std_cmake_args
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system "cmake", "--build", "build"
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system "cmake", "--install", "build"
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end
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test do
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(testpath/"test.c").write <<~EOS
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#include <stdio.h>
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extern double __enzyme_autodiff(void*, double);
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double square(double x) {
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return x * x;
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}
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double dsquare(double x) {
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return __enzyme_autodiff(square, x);
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}
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int main() {
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double i = 21.0;
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printf("square(%.0f)=%.0f, dsquare(%.0f)=%.0f\\n", i, square(i), i, dsquare(i));
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}
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EOS
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opt = llvm.opt_bin/"opt"
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ENV["CC"] = llvm.opt_bin/"clang"
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# `-Xclang -no-opaque-pointers` is a transitional flag for LLVM 15, and will
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# likely be need to removed in LLVM 16. See:
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# https://llvm.org/docs/OpaquePointers.html#version-support
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system ENV.cc, "-v", testpath/"test.c", "-S", "-emit-llvm", "-o", "input.ll", "-O2",
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"-fno-vectorize", "-fno-slp-vectorize", "-fno-unroll-loops",
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"-Xclang", "-no-opaque-pointers"
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system opt, "input.ll", "--enable-new-pm=0",
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"-load=#{opt_lib/shared_library("LLVMEnzyme-#{llvm.version.major}")}",
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"--enzyme-attributor=0", "-enzyme", "-o", "output.ll", "-S"
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system ENV.cc, "output.ll", "-O3", "-o", "test"
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assert_equal "square(21)=441, dsquare(21)=42\n", shell_output("./test")
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end
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end
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