diff options
| -rw-r--r-- | compiler/rustc_driver/src/lib.rs | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/compiler/rustc_driver/src/lib.rs b/compiler/rustc_driver/src/lib.rs index 8bccc129c24..5d2bf0a45ef 100644 --- a/compiler/rustc_driver/src/lib.rs +++ b/compiler/rustc_driver/src/lib.rs @@ -765,7 +765,16 @@ pub fn version(binary: &str, matches: &getopts::Matches) { println!("commit-date: {}", unw(util::commit_date_str())); println!("host: {}", config::host_triple()); println!("release: {}", unw(util::release_str())); - get_codegen_backend(&None, None).print_version(); + + let debug_flags = matches.opt_strs("Z"); + let backend_name = debug_flags.iter().find_map(|x| { + if x.starts_with("codegen-backend=") { + Some(&x["codegen-backends=".len()..]) + } else { + None + } + }); + get_codegen_backend(&None, backend_name).print_version(); } } @@ -1037,8 +1046,8 @@ pub fn handle_options(args: &[String]) -> Option<getopts::Matches> { } // Don't handle -W help here, because we might first load plugins. - let r = matches.opt_strs("Z"); - if r.iter().any(|x| *x == "help") { + let debug_flags = matches.opt_strs("Z"); + if debug_flags.iter().any(|x| *x == "help") { describe_debug_flags(); return None; } @@ -1058,7 +1067,10 @@ pub fn handle_options(args: &[String]) -> Option<getopts::Matches> { } if cg_flags.iter().any(|x| *x == "passes=list") { - get_codegen_backend(&None, None).print_passes(); + let backend_name = debug_flags.iter().find_map(|x| { + if x.starts_with("codegen-backend=") { Some(&x["codegen-backends=".len()..]) } else { None } + }); + get_codegen_backend(&None, backend_name).print_passes(); return None; } |