homebrew-core/Formula/ispc.rb
2019-04-09 09:06:08 -04:00

71 lines
2.3 KiB
Ruby

class Ispc < Formula
desc "Compiler for SIMD programming on the CPU"
homepage "https://ispc.github.io"
url "https://github.com/ispc/ispc/archive/v1.10.0.tar.gz"
sha256 "0aa30e989f8d446b2680c9078d5c5db70634f40b9aa07db387aa35aa08dd0b81"
revision 1
bottle do
cellar :any
sha256 "ed627995601dca14625923e95badefbbd12def15a9733cd422255ca75ec5b929" => :mojave
sha256 "3f677501e9519bf269b67c795c474cb3aaf1e4f96963d1e0c676424df7a0974e" => :high_sierra
sha256 "d00210a8bf3001b4495fa2239fc54dacf8be81f246dda0c58c345635511b69d9" => :sierra
end
depends_on "bison" => :build
depends_on "cmake" => :build
depends_on "flex" => :build
depends_on "llvm@4"
def install
# The standard include paths for clang supplied by the llvm@4 formula do not include
# C headers such as unistd.h. Add the path to those headers explicitly so that
# generation of the ispc builtins and standard library do not silently fail.
inreplace "cmake/GenerateBuiltins.cmake", "${CLANG_EXECUTABLE}",
"${CLANG_EXECUTABLE} -I#{MacOS.sdk_path}/usr/include"
args = std_cmake_args + %W[
-DISPC_INCLUDE_EXAMPLES=OFF
-DISPC_INCLUDE_TESTS=OFF
-DISPC_INCLUDE_UTILS=OFF
-DLLVM_TOOLS_BINARY_DIR='#{Formula["llvm@4"]}'
]
mkdir "build" do
system "cmake", *args, ".."
system "make"
system "make", "install"
end
end
test do
(testpath/"simple.ispc").write <<~EOS
export void simple(uniform float vin[], uniform float vout[], uniform int count) {
foreach (index = 0 ... count) {
float v = vin[index];
if (v < 3.)
v = v * v;
else
v = sqrt(v);
vout[index] = v;
}
}
EOS
system bin/"ispc", "--arch=x86-64", "--target=sse2", testpath/"simple.ispc",
"-o", "simple_ispc.o", "-h", "simple_ispc.h"
(testpath/"simple.cpp").write <<~EOS
#include "simple_ispc.h"
int main() {
float vin[9], vout[9];
for (int i = 0; i < 9; ++i) vin[i] = static_cast<float>(i);
ispc::simple(vin, vout, 9);
return 0;
}
EOS
system ENV.cxx, "-I#{testpath}", "-c", "-o", testpath/"simple.o", testpath/"simple.cpp"
system ENV.cxx, "-o", testpath/"simple", testpath/"simple.o", testpath/"simple_ispc.o"
system testpath/"simple"
end
end