Rollup merge of #67888 - Zoxc:metadata-prefetch, r=matthewjasper

Prefetch some queries used by the metadata encoder

This brings the time for `metadata encoding and writing` for `syntex_syntax` from 1.338s to 0.997s with 6 threads in non-incremental debug mode.

r? @Mark-Simulacrum

1 files changed, 1 insertions, 1 deletions

diff --git a/src/librustc/ty/context.rs b/src/librustc/ty/context.rs
index 0e3776f32e0..9b67d423510 100644
--- a/src/librustc/ty/context.rs
+++ b/src/librustc/ty/context.rs
@@ -1323,7 +1323,7 @@ impl<'tcx> TyCtxt<'tcx> {
     }
 
     pub fn encode_metadata(self) -> EncodedMetadata {
-        let _prof_timer = self.prof.generic_activity("generate_crate_metadata");
+        let _prof_timer = self.prof.verbose_generic_activity("generate_crate_metadata");
         self.cstore.encode_metadata(self)
     }