Inline TokenStreamBuilder::push.

nnethercote · nnethercote · commit ddf62b5bd40c · 2022-08-01T08:27:41.000+10:00
Because it's small and hot.
diff --git a/compiler/rustc_parse/src/lexer/tokentrees.rs b/compiler/rustc_parse/src/lexer/tokentrees.rs
@@ -277,6 +277,7 @@ struct TokenStreamBuilder {
 }
 
 impl TokenStreamBuilder {
+    #[inline(always)]
     fn push(&mut self, tree: TokenTree) {
         if let Some(TokenTree::Token(prev_token, Spacing::Joint)) = self.buf.last()
             && let TokenTree::Token(token, joint) = &tree

Original file line number	Diff line number	Diff line change
`@@ -277,6 +277,7 @@ struct TokenStreamBuilder {`
`277`	`277`	`}`
`278`	`278`
`279`	`279`	`impl TokenStreamBuilder {`
	`280`	`+ #[inline(always)]`
`280`	`281`	`fn push(&mut self, tree: TokenTree) {`
`281`	`282`	`if let Some(TokenTree::Token(prev_token, Spacing::Joint)) = self.buf.last()`
`282`	`283`	`&& let TokenTree::Token(token, joint) = &tree`