diff options
Diffstat (limited to 'compiler/rustc_codegen_cranelift/src/config.rs')
| -rw-r--r-- | compiler/rustc_codegen_cranelift/src/config.rs | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/compiler/rustc_codegen_cranelift/src/config.rs b/compiler/rustc_codegen_cranelift/src/config.rs index 9e92d656c76..12bce680d9e 100644 --- a/compiler/rustc_codegen_cranelift/src/config.rs +++ b/compiler/rustc_codegen_cranelift/src/config.rs @@ -64,8 +64,13 @@ impl Default for BackendConfig { BackendConfig { codegen_mode: CodegenMode::Aot, jit_args: { - let args = std::env::var("CG_CLIF_JIT_ARGS").unwrap_or_else(|_| String::new()); - args.split(' ').map(|arg| arg.to_string()).collect() + match std::env::var("CG_CLIF_JIT_ARGS") { + Ok(args) => args.split(' ').map(|arg| arg.to_string()).collect(), + Err(std::env::VarError::NotPresent) => vec![], + Err(std::env::VarError::NotUnicode(s)) => { + panic!("CG_CLIF_JIT_ARGS not unicode: {:?}", s); + } + } }, enable_verifier: cfg!(debug_assertions) || bool_env_var("CG_CLIF_ENABLE_VERIFIER"), disable_incr_cache: bool_env_var("CG_CLIF_DISABLE_INCR_CACHE"), |