bjoernager/rust
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Auto merge of #107406 - cjgillot:eliminate-witnesses, r=compiler-errors

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Only compute mir_generator_witnesses query in drop_tracking_mir mode.

Attempt to fix the perf regression in https://github.com/rust-lang/rust/pull/101692

r? `@ghost`
This commit is contained in:
bors 2023-01-29 01:27:11 +00:00
commit bcb064a7f4
3 changed files with 19 additions and 18 deletions
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2
compiler/rustc_metadata/src/rmeta/encoder.rs
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@ -1415,7 +1415,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> {
if encode_opt {
record!(self.tables.optimized_mir[def_id.to_def_id()] <- tcx.optimized_mir(def_id));
if let DefKind::Generator = self.tcx.def_kind(def_id) {
if let DefKind::Generator = self.tcx.def_kind(def_id) && tcx.sess.opts.unstable_opts.drop_tracking_mir {
record!(self.tables.mir_generator_witnesses[def_id.to_def_id()] <- tcx.mir_generator_witnesses(def_id));
}
}