diff --git a/src/test/run-make-fulldeps/intrinsic-unreachable/exit-ret.rs b/src/test/run-make-fulldeps/intrinsic-unreachable/exit-ret.rs
index 2e81667cf39c..e7b9694d9f2a 100644
--- a/src/test/run-make-fulldeps/intrinsic-unreachable/exit-ret.rs
+++ b/src/test/run-make-fulldeps/intrinsic-unreachable/exit-ret.rs
@@ -1,12 +1,11 @@
-#![feature(llvm_asm)]
 #![crate_type="lib"]
+use std::arch::asm;
 
 #[deny(unreachable_code)]
 pub fn exit(n: usize) -> i32 {
     unsafe {
         // Pretend this asm is an exit() syscall.
-        llvm_asm!("" :: "r"(n) :: "volatile");
-        // Can't actually reach this point, but rustc doesn't know that.
+        asm!("/*{0}*/", in(reg) n);
     }
     // This return value is just here to generate some extra code for a return
     // value, making it easier for the test script to detect whether the
diff --git a/src/test/run-make-fulldeps/intrinsic-unreachable/exit-unreachable.rs b/src/test/run-make-fulldeps/intrinsic-unreachable/exit-unreachable.rs
index fb3848b0db61..ec85db733df0 100644
--- a/src/test/run-make-fulldeps/intrinsic-unreachable/exit-unreachable.rs
+++ b/src/test/run-make-fulldeps/intrinsic-unreachable/exit-unreachable.rs
@@ -1,5 +1,6 @@
-#![feature(llvm_asm, core_intrinsics)]
+#![feature(core_intrinsics)]
 #![crate_type="lib"]
+use std::arch::asm;
 
 use std::intrinsics;
 
@@ -7,7 +8,7 @@ use std::intrinsics;
 pub fn exit(n: usize) -> i32 {
     unsafe {
         // Pretend this asm is an exit() syscall.
-        llvm_asm!("" :: "r"(n) :: "volatile");
+        asm!("/*{0}*/", in(reg) n);
         intrinsics::unreachable()
     }
     // This return value is just here to generate some extra code for a return