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| author | bors <bors@rust-lang.org> | 2022-02-02 02:29:32 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2022-02-02 02:29:32 +0000 |
| commit | d5f9c40e6a9ecc62432e71e886cef83a4c2c9b98 (patch) | |
| tree | 81f0acd2ade399951a45b3b6ad98c15a2c9d9db7 /compiler/rustc_interface | |
| parent | 1ea4851715893ee3f365a8ef09d47165e9a7864f (diff) | |
| parent | 4e7d47bb6c91f6db5d043a152d11ab7528266d25 (diff) | |
| download | rust-d5f9c40e6a9ecc62432e71e886cef83a4c2c9b98.tar.gz rust-d5f9c40e6a9ecc62432e71e886cef83a4c2c9b98.zip | |
Auto merge of #93466 - cjgillot:query-dead, r=nagisa
Make dead code check a query. Dead code check is run for each invocation of the compiler, even if no modifications were involved. This PR makes dead code check a query keyed on the module. This allows to skip the check when a module has not changed. To perform this, a query `live_symbols_and_ignored_derived_traits` is introduced to encapsulate the global analysis of finding live symbols. The second query `check_mod_deathness` outputs diagnostics for each module based on this first query's results.
Diffstat (limited to 'compiler/rustc_interface')
| -rw-r--r-- | compiler/rustc_interface/src/passes.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index be31eb89f1b..7a3d77466c5 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -999,7 +999,8 @@ fn analysis(tcx: TyCtxt<'_>, (): ()) -> Result<()> { tcx.ensure().check_private_in_public(()); }, { - sess.time("death_checking", || rustc_passes::dead::check_crate(tcx)); + tcx.hir() + .par_for_each_module(|module| tcx.ensure().check_mod_deathness(module)); }, { sess.time("unused_lib_feature_checking", || { |