SizeMin, // -Oz
}
+#[derive(Clone, Copy, PartialEq, Hash)]
+pub enum Lto {
+ /// Don't do any LTO whatsoever
+ No,
+
+ /// Do a full crate graph LTO. The flavor is determined by the compiler
+ /// (currently the default is "fat").
+ Yes,
+
+ /// Do a full crate graph LTO with ThinLTO
+ Thin,
+
+ /// Do a local graph LTO with ThinLTO (only relevant for multiple codegen
+ /// units).
+ ThinLocal,
+
+ /// Do a full crate graph LTO with "fat" LTO
+ Fat,
+}
+
#[derive(Clone, Copy, PartialEq, Hash)]
pub enum DebugInfoLevel {
NoDebugInfo,
// commands like `--emit llvm-ir` which they're often incompatible with
// if we otherwise use the defaults of rustc.
cli_forced_codegen_units: Option<usize> [UNTRACKED],
- cli_forced_thinlto: Option<bool> [UNTRACKED],
+ cli_forced_thinlto_off: bool [UNTRACKED],
}
);
pub fn filestem(&self) -> String {
format!("{}{}", self.out_filestem, self.extra)
}
-
- pub fn contains_path(&self, input_path: &PathBuf) -> bool {
- let input_path = input_path.canonicalize().ok();
- if input_path.is_none() {
- return false
- }
- match self.single_output_file {
- Some(ref output_path) => output_path.canonicalize().ok() == input_path,
- None => {
- for k in self.outputs.keys() {
- let output_path = self.path(k.to_owned());
- if output_path.canonicalize().ok() == input_path {
- return true;
- }
- }
- false
- }
- }
- }
}
pub fn host_triple() -> &'static str {
debug_assertions: true,
actually_rustdoc: false,
cli_forced_codegen_units: None,
- cli_forced_thinlto: None,
+ cli_forced_thinlto_off: false,
}
}
Some("crate=integer");
pub const parse_unpretty: Option<&'static str> =
Some("`string` or `string=string`");
+ pub const parse_lto: Option<&'static str> =
+ Some("one of `thin`, `fat`, or omitted");
}
#[allow(dead_code)]
mod $mod_set {
- use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer};
+ use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer, Lto};
use rustc_back::{LinkerFlavor, PanicStrategy, RelroLevel};
use std::path::PathBuf;
_ => false,
}
}
+
+ fn parse_lto(slot: &mut Lto, v: Option<&str>) -> bool {
+ *slot = match v {
+ None => Lto::Yes,
+ Some("thin") => Lto::Thin,
+ Some("fat") => Lto::Fat,
+ Some(_) => return false,
+ };
+ true
+ }
}
) }
"extra arguments to append to the linker invocation (space separated)"),
link_dead_code: bool = (false, parse_bool, [UNTRACKED],
"don't let linker strip dead code (turning it on can be used for code coverage)"),
- lto: bool = (false, parse_bool, [TRACKED],
+ lto: Lto = (Lto::No, parse_lto, [TRACKED],
"perform LLVM link-time optimizations"),
target_cpu: Option<String> = (None, parse_opt_string, [TRACKED],
"select target processor (rustc --print target-cpus for details)"),
"treat all errors that occur as bugs"),
external_macro_backtrace: bool = (false, parse_bool, [UNTRACKED],
"show macro backtraces even for non-local macros"),
+ teach: bool = (false, parse_bool, [TRACKED],
+ "show extended diagnostic help"),
continue_parse_after_error: bool = (false, parse_bool, [TRACKED],
"attempt to recover from parse errors (experimental)"),
incremental: Option<String> = (None, parse_opt_string, [UNTRACKED],
dep_info_omit_d_target: bool = (false, parse_bool, [TRACKED],
"in dep-info output, omit targets for tracking dependencies of the dep-info files \
themselves"),
+ approximate_suggestions: bool = (false, parse_bool, [UNTRACKED],
+ "include machine-applicability of suggestions in JSON output"),
unpretty: Option<String> = (None, parse_unpretty, [UNTRACKED],
"Present the input source, unstable (and less-pretty) variants;
valid types are any of the types for `--pretty`, as well as:
sp.struct_fatal(&format!("Error loading target specification: {}", e))
.help("Use `--print target-list` for a list of built-in targets")
.emit();
- panic!(FatalError);
+ FatalError.raise();
}
};
"16" => (ast::IntTy::I16, ast::UintTy::U16),
"32" => (ast::IntTy::I32, ast::UintTy::U32),
"64" => (ast::IntTy::I64, ast::UintTy::U64),
- w => panic!(sp.fatal(&format!("target specification was invalid: \
- unrecognized target-pointer-width {}", w))),
+ w => sp.fatal(&format!("target specification was invalid: \
+ unrecognized target-pointer-width {}", w)).raise(),
};
Config {
let mut debugging_opts = build_debugging_options(matches, error_format);
if !debugging_opts.unstable_options && error_format == ErrorOutputType::Json(true) {
- early_error(ErrorOutputType::Json(false),
- "--error-format=pretty-json is unstable");
+ early_error(ErrorOutputType::Json(false), "--error-format=pretty-json is unstable");
}
let mut output_types = BTreeMap::new();
let mut cg = build_codegen_options(matches, error_format);
let mut codegen_units = cg.codegen_units;
- let mut thinlto = None;
+ let mut disable_thinlto = false;
// Issue #30063: if user requests llvm-related output to one
// particular path, disable codegen-units.
}
early_warn(error_format, "resetting to default -C codegen-units=1");
codegen_units = Some(1);
- thinlto = Some(false);
+ disable_thinlto = true;
}
}
_ => {
codegen_units = Some(1);
- thinlto = Some(false);
+ disable_thinlto = true;
}
}
}
(&None, &None) => None,
}.map(|m| PathBuf::from(m));
- if cg.lto && incremental.is_some() {
+ if cg.lto != Lto::No && incremental.is_some() {
early_error(error_format, "can't perform LTO when compiling incrementally");
}
debug_assertions,
actually_rustdoc: false,
cli_forced_codegen_units: codegen_units,
- cli_forced_thinlto: thinlto,
+ cli_forced_thinlto_off: disable_thinlto,
},
cfg)
}
use std::hash::Hash;
use std::path::PathBuf;
use std::collections::hash_map::DefaultHasher;
- use super::{Passes, CrateType, OptLevel, DebugInfoLevel,
+ use super::{Passes, CrateType, OptLevel, DebugInfoLevel, Lto,
OutputTypes, Externs, ErrorOutputType, Sanitizer};
use syntax::feature_gate::UnstableFeatures;
use rustc_back::{PanicStrategy, RelroLevel};
impl_dep_tracking_hash_via_hash!(RelroLevel);
impl_dep_tracking_hash_via_hash!(Passes);
impl_dep_tracking_hash_via_hash!(OptLevel);
+ impl_dep_tracking_hash_via_hash!(Lto);
impl_dep_tracking_hash_via_hash!(DebugInfoLevel);
impl_dep_tracking_hash_via_hash!(UnstableFeatures);
impl_dep_tracking_hash_via_hash!(Externs);
use lint;
use middle::cstore;
use session::config::{build_configuration, build_session_options_and_crate_config};
+ use session::config::Lto;
use session::build_session;
use std::collections::{BTreeMap, BTreeSet};
use std::iter::FromIterator;
// Make sure changing a [TRACKED] option changes the hash
opts = reference.clone();
- opts.cg.lto = true;
+ opts.cg.lto = Lto::Fat;
assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
opts = reference.clone();
projects / rust.git / blobdiff