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Merge commit '40dd3e2b70' into sync_cg_clif-2021-05-27

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bjorn3 2021-05-27 13:08:14 +02:00
commit fa702d0d2b
25 changed files with 218 additions and 296 deletions
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9
compiler/rustc_codegen_cranelift/src/config.rs
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@ -48,6 +48,12 @@ pub struct BackendConfig {
/// Can be set using `-Cllvm-args=display_cg_time=...`.
pub display_cg_time: bool,
/// The register allocator to use.
///
/// Defaults to the value of `CG_CLIF_REGALLOC` or `backtracking` otherwise. Can be set using
/// `-Cllvm-args=regalloc=...`.
pub regalloc: String,
/// Enable the Cranelift ir verifier for all compilation passes. If not set it will only run
/// once before passing the clif ir to Cranelift for compilation.
///
@ -74,6 +80,8 @@ impl Default for BackendConfig {
args.split(' ').map(|arg| arg.to_string()).collect()
},
display_cg_time: bool_env_var("CG_CLIF_DISPLAY_CG_TIME"),
regalloc: std::env::var("CG_CLIF_REGALLOC")
.unwrap_or_else(|_| "backtracking".to_string()),
enable_verifier: cfg!(debug_assertions) || bool_env_var("CG_CLIF_ENABLE_VERIFIER"),
disable_incr_cache: bool_env_var("CG_CLIF_DISABLE_INCR_CACHE"),
}
@ -93,6 +101,7 @@ impl BackendConfig {
match name {
"mode" => config.codegen_mode = value.parse()?,
"display_cg_time" => config.display_cg_time = parse_bool(name, value)?,
"regalloc" => config.regalloc = value.to_string(),
"enable_verifier" => config.enable_verifier = parse_bool(name, value)?,
"disable_incr_cache" => config.disable_incr_cache = parse_bool(name, value)?,
_ => return Err(format!("Unknown option `{}`", name)),