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authorMark Rousskov <mark.simulacrum@gmail.com>2021-10-03 12:43:43 -0400
committerMark Rousskov <mark.simulacrum@gmail.com>2021-10-03 12:43:43 -0400
commit1c2ad79f9d789b0d449a1bc4dfe7d7ddc2ed4109 (patch)
tree9ee71c9d3fb86b5f857aabec39cf77560245d114 /compiler/rustc_infer/src/infer
parent2801a770ce3a21a53769180d9815240ac555cbef (diff)
downloadrust-1c2ad79f9d789b0d449a1bc4dfe7d7ddc2ed4109.tar.gz
rust-1c2ad79f9d789b0d449a1bc4dfe7d7ddc2ed4109.zip
Add two inline annotations for hot functions
These two functions are essentially no-ops (and compile to just a load and
return), but show up in process_obligations profiles with a high call count --
so worthwhile to try and inline them away.
Diffstat (limited to 'compiler/rustc_infer/src/infer')
-rw-r--r--compiler/rustc_infer/src/infer/type_variable.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_infer/src/infer/type_variable.rs b/compiler/rustc_infer/src/infer/type_variable.rs
index 0e832685310..82970f214fa 100644
--- a/compiler/rustc_infer/src/infer/type_variable.rs
+++ b/compiler/rustc_infer/src/infer/type_variable.rs
@@ -400,6 +400,7 @@ pub(crate) struct TyVidEqKey<'tcx> {
 }
 
 impl<'tcx> From<ty::TyVid> for TyVidEqKey<'tcx> {
+    #[inline] // make this function eligible for inlining - it is quite hot.
     fn from(vid: ty::TyVid) -> Self {
         TyVidEqKey { vid, phantom: PhantomData }
     }