rust/tests/run-make/no-builtins-attribute/rmake.rs
2024-07-26 12:07:33 -04:00

14 lines
656 B
Rust

// `no_builtins` is an attribute related to LLVM's optimizations. In order to ensure that it has an
// effect on link-time optimizations (LTO), it should be added to function declarations in a crate.
// This test uses the `llvm-filecheck` tool to determine that this attribute is successfully
// being added to these function declarations.
// See https://github.com/rust-lang/rust/pull/113716
use run_make_support::{llvm_filecheck, rfs, rustc};
fn main() {
rustc().input("no_builtins.rs").emit("link").run();
rustc().input("main.rs").emit("llvm-ir").run();
llvm_filecheck().patterns("filecheck.main.txt").stdin(rfs::read("main.ll")).run();
}