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| author | bjorn3 <bjorn3@users.noreply.github.com> | 2022-04-17 19:41:24 +0200 |
|---|---|---|
| committer | bjorn3 <bjorn3@users.noreply.github.com> | 2022-04-17 19:41:28 +0200 |
| commit | 89c67a87bc84be74632e0099584223b537a6abac (patch) | |
| tree | b591e14a877bbb5eb9fb9c284063906a5b726b3d /src | |
| parent | 83d470d91c15d0cb5890705291e6ee9e5be8a842 (diff) | |
| download | rust-89c67a87bc84be74632e0099584223b537a6abac.tar.gz rust-89c67a87bc84be74632e0099584223b537a6abac.zip | |
Remove option to select regalloc algorithm
The main branch of Cranelift has switched to a new register allocator. This register allocator doesn't have any alternative regalloc algorithms unlike the old register allocator.
Diffstat (limited to 'src')
| -rw-r--r-- | src/config.rs | 9 | ||||
| -rw-r--r-- | src/lib.rs | 2 |
2 files changed, 0 insertions, 11 deletions
diff --git a/src/config.rs b/src/config.rs index eef3c8c8d6e..e59a0cb0a23 100644 --- a/src/config.rs +++ b/src/config.rs @@ -48,12 +48,6 @@ 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. /// @@ -80,8 +74,6 @@ 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"), } @@ -101,7 +93,6 @@ 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)), diff --git a/src/lib.rs b/src/lib.rs index 878b9390e13..9d2e12f9898 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -256,8 +256,6 @@ fn build_isa(sess: &Session, backend_config: &BackendConfig) -> Box<dyn isa::Tar flags_builder.set("enable_llvm_abi_extensions", "true").unwrap(); - flags_builder.set("regalloc", &backend_config.regalloc).unwrap(); - use rustc_session::config::OptLevel; match sess.opts.optimize { OptLevel::No => { |