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use crate::common::cli::ProcessedCli;
use crate::common::compile_c::{CompilationCommandBuilder, CppCompilation};
pub fn build_cpp_compilation(config: &ProcessedCli) -> Option<CppCompilation> {
let cpp_compiler = config.cpp_compiler.as_ref()?;
// -ffp-contract=off emulates Rust's approach of not fusing separate mul-add operations
let mut command = CompilationCommandBuilder::new()
.add_arch_flags(vec!["armv8.6-a", "crypto", "crc", "dotprod", "fp16"])
.set_compiler(cpp_compiler)
.set_target(&config.target)
.set_opt_level("2")
.set_cxx_toolchain_dir(config.cxx_toolchain_dir.as_deref())
.set_project_root("c_programs")
.add_extra_flags(vec!["-ffp-contract=off", "-Wno-narrowing"]);
if !config.target.contains("v7") {
command = command.add_arch_flags(vec!["faminmax", "lut", "sha3"]);
}
if !cpp_compiler.contains("clang") {
command = command.add_extra_flag("-flax-vector-conversions");
}
let mut cpp_compiler = command.into_cpp_compilation();
if config.target.contains("aarch64_be") {
let Some(ref cxx_toolchain_dir) = config.cxx_toolchain_dir else {
panic!(
"target `{}` must specify `cxx_toolchain_dir`",
config.target
)
};
cpp_compiler.command_mut().args([
&format!("--sysroot={cxx_toolchain_dir}/aarch64_be-none-linux-gnu/libc"),
"--include-directory",
&format!("{cxx_toolchain_dir}/aarch64_be-none-linux-gnu/include/c++/14.3.1"),
"--include-directory",
&format!("{cxx_toolchain_dir}/aarch64_be-none-linux-gnu/include/c++/14.3.1/aarch64_be-none-linux-gnu"),
"-L",
&format!("{cxx_toolchain_dir}/lib/gcc/aarch64_be-none-linux-gnu/14.3.1"),
"-L",
&format!("{cxx_toolchain_dir}/aarch64_be-none-linux-gnu/libc/usr/lib"),
"-B",
&format!("{cxx_toolchain_dir}/lib/gcc/aarch64_be-none-linux-gnu/14.3.1"),
]);
}
Some(cpp_compiler)
}
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