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Auto merge of #29384 - nikomatsakis:mir-not-stable-beta, r=alexcrichton

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bors 2015-10-26 19:34:14 +00:00
commit 2c42c98815
1 changed files with 13 additions and 3 deletions
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16
src/librustc_driver/driver.rs
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@ -46,6 +46,7 @@ use syntax::ast::{self, NodeIdAssigner};
use syntax::attr;
use syntax::attr::AttrMetaMethods;
use syntax::diagnostics;
use syntax::feature_gate::UnstableFeatures;
use syntax::fold::Folder;
use syntax::parse;
use syntax::parse::token;
@ -750,9 +751,18 @@ pub fn phase_3_run_analysis_passes<'tcx, F, R>(sess: &'tcx Session,
time(time_passes, "match checking", ||
middle::check_match::check_crate(tcx));
let _mir_map =
time(time_passes, "MIR dump", ||
mir::mir_map::build_mir_for_crate(tcx));
match tcx.sess.opts.unstable_features {
UnstableFeatures::Disallow => {
// use this as a shorthand for beta/stable, and skip
// MIR construction there until known regressions are
// addressed
}
UnstableFeatures::Allow | UnstableFeatures::Cheat => {
let _mir_map =
time(time_passes, "MIR dump", ||
mir::mir_map::build_mir_for_crate(tcx));
}
}
time(time_passes, "liveness checking", ||
middle::liveness::check_crate(tcx));