From 0b315250b8888d34c5eb2b33760c46627362f8d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Mi=C4=85sko?= <tomasz.miasko@gmail.com>
Date: Wed, 12 Jan 2022 00:00:00 +0000
Subject: [PATCH] Use black_box intrinsic in out-of-stack test

---
 src/test/ui/runtime/out-of-stack.rs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/test/ui/runtime/out-of-stack.rs b/src/test/ui/runtime/out-of-stack.rs
index 2d59c9f29b1..73c31cd9721 100644
--- a/src/test/ui/runtime/out-of-stack.rs
+++ b/src/test/ui/runtime/out-of-stack.rs
@@ -6,7 +6,7 @@
 // ignore-emscripten no processes
 // ignore-sgx no processes
 
-#![feature(llvm_asm)]
+#![feature(core_intrinsics)]
 #![feature(rustc_private)]
 
 #[cfg(unix)]
@@ -16,11 +16,10 @@ use std::env;
 use std::process::Command;
 use std::thread;
 
-// lifted from the test module
 // Inlining to avoid llvm turning the recursive functions into tail calls,
 // which doesn't consume stack.
 #[inline(always)]
-pub fn black_box<T>(dummy: T) { unsafe { llvm_asm!("" : : "r"(&dummy)) } }
+pub fn black_box<T>(dummy: T) { std::intrinsics::black_box(dummy); }
 
 fn silent_recurse() {
     let buf = [0u8; 1000];