From 09b37d743328bd497939bd27135f82350f1b0bd7 Mon Sep 17 00:00:00 2001
From: Cameron Steffen <cam.steffen94@gmail.com>
Date: Tue, 21 Sep 2021 00:56:45 -0500
Subject: Use ZST for fmt unsafety

This allows the format_args! macro to keep the pre-expansion code out of
the unsafe block without doing gymnastics with nested `match`
expressions. This reduces codegen.
---
 compiler/rustc_span/src/symbol.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'compiler/rustc_span/src')

diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 322bea3806c..be6f5fc2978 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -253,6 +253,7 @@ symbols! {
         TyCtxt,
         TyKind,
         Unknown,
+        UnsafeArg,
         Vec,
         Yield,
         _DECLS,
-- 
cgit 1.4.1-3-g733a5