From a35a93f09cc111a53d00efc567ad678583dd5ac7 Mon Sep 17 00:00:00 2001
From: Mingye Wang <arthur200126@gmail.com>
Date: Thu, 17 Sep 2020 17:39:26 +0800
Subject: Pass tune-cpu to LLVM

I think this is how it should work...
---
 compiler/rustc_codegen_ssa/src/traits/backend.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'compiler/rustc_codegen_ssa/src')

diff --git a/compiler/rustc_codegen_ssa/src/traits/backend.rs b/compiler/rustc_codegen_ssa/src/traits/backend.rs
index 3522ea01153..98cd5d82813 100644
--- a/compiler/rustc_codegen_ssa/src/traits/backend.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/backend.rs
@@ -116,4 +116,5 @@ pub trait ExtraBackendMethods: CodegenBackend + WriteBackendMethods + Sized + Se
         opt_level: config::OptLevel,
     ) -> Arc<dyn Fn() -> Result<Self::TargetMachine, String> + Send + Sync>;
     fn target_cpu<'b>(&self, sess: &'b Session) -> &'b str;
+    fn tune_cpu<'b>(&self, sess: &'b Session) -> Option<&'b str>;
 }
-- 
cgit 1.4.1-3-g733a5