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// When rustc received 4 codegen-units, an output path and an emit flag all simultaneously,
// this could cause an annoying recompilation issue, uselessly lengthening the build process.
// A fix was delivered, which resets codegen-units to 1 when necessary,
// but as it directly affected the way codegen-units are manipulated,
// this test was created to check that this fix did not cause compilation failures.
// See https://github.com/rust-lang/rust/issues/30063
//@ ignore-cross-compile
use run_make_support::{bin_name, path, rustc};
fn compile(output_file: &str, emit: Option<&str>) {
let mut rustc = rustc();
let rustc = rustc.codegen_units(4).output(output_file).input("foo.rs");
if let Some(emit) = emit {
rustc.emit(emit);
}
rustc.run();
}
fn main() {
let flags = [
("foo-output", None),
("asm-output", Some("asm")),
("bc-output", Some("llvm-bc")),
("ir-output", Some("llvm-ir")),
("link-output", Some("link")),
("obj-output", Some("obj")),
("dep-output", Some("dep-info")),
];
for (output_file, emit) in flags {
// In the None case, bin_name is required for successful Windows compilation.
let output_file = &bin_name(output_file);
compile(output_file, emit);
assert!(path(output_file).is_file());
}
compile("multi-output", Some("asm,obj"));
assert!(path("multi-output.s").is_file());
assert!(path("multi-output.o").is_file());
}
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