diff --git a/src/librustc/ty/codec.rs b/src/librustc/ty/codec.rs
index d5e7ac19263a..b3ef3217ec6a 100644
--- a/src/librustc/ty/codec.rs
+++ b/src/librustc/ty/codec.rs
@@ -76,7 +76,10 @@ pub fn encode_with_shorthand<E, T, M>(encoder: &mut E,
 
     // The shorthand encoding uses the same usize as the
     // discriminant, with an offset so they can't conflict.
+    #[cfg(bootstrap)]
     let discriminant = unsafe { intrinsics::discriminant_value(variant) };
+    #[cfg(not(bootstrap))]
+    let discriminant = intrinsics::discriminant_value(variant);
     assert!(discriminant < SHORTHAND_OFFSET as u64);
     let shorthand = start + SHORTHAND_OFFSET;
 
diff --git a/src/test/ui/enum-discriminant/discriminant_value.rs b/src/test/ui/enum-discriminant/discriminant_value.rs
index b7000015c71d..32d2d40241c8 100644
--- a/src/test/ui/enum-discriminant/discriminant_value.rs
+++ b/src/test/ui/enum-discriminant/discriminant_value.rs
@@ -51,34 +51,31 @@ enum Mixed {
 }
 
 pub fn main() {
-    unsafe {
+    assert_eq!(discriminant_value(&CLike1::A), 0);
+    assert_eq!(discriminant_value(&CLike1::B), 1);
+    assert_eq!(discriminant_value(&CLike1::C), 2);
+    assert_eq!(discriminant_value(&CLike1::D), 3);
 
-        assert_eq!(discriminant_value(&CLike1::A), 0);
-        assert_eq!(discriminant_value(&CLike1::B), 1);
-        assert_eq!(discriminant_value(&CLike1::C), 2);
-        assert_eq!(discriminant_value(&CLike1::D), 3);
+    assert_eq!(discriminant_value(&CLike2::A), 5);
+    assert_eq!(discriminant_value(&CLike2::B), 2);
+    assert_eq!(discriminant_value(&CLike2::C), 19);
+    assert_eq!(discriminant_value(&CLike2::D), 20);
 
-        assert_eq!(discriminant_value(&CLike2::A), 5);
-        assert_eq!(discriminant_value(&CLike2::B), 2);
-        assert_eq!(discriminant_value(&CLike2::C), 19);
-        assert_eq!(discriminant_value(&CLike2::D), 20);
+    assert_eq!(discriminant_value(&CLike3::A), 5);
+    assert_eq!(discriminant_value(&CLike3::B), 6);
+    assert_eq!(discriminant_value(&CLike3::C), -1_i8 as u64);
+    assert_eq!(discriminant_value(&CLike3::D), 0);
 
-        assert_eq!(discriminant_value(&CLike3::A), 5);
-        assert_eq!(discriminant_value(&CLike3::B), 6);
-        assert_eq!(discriminant_value(&CLike3::C), -1_i8 as u64);
-        assert_eq!(discriminant_value(&CLike3::D), 0);
+    assert_eq!(discriminant_value(&ADT::First(0,0)), 0);
+    assert_eq!(discriminant_value(&ADT::Second(5)), 1);
 
-        assert_eq!(discriminant_value(&ADT::First(0,0)), 0);
-        assert_eq!(discriminant_value(&ADT::Second(5)), 1);
+    assert_eq!(discriminant_value(&NullablePointer::Nothing), 1);
+    assert_eq!(discriminant_value(&NullablePointer::Something(&CONST)), 0);
 
-        assert_eq!(discriminant_value(&NullablePointer::Nothing), 1);
-        assert_eq!(discriminant_value(&NullablePointer::Something(&CONST)), 0);
+    assert_eq!(discriminant_value(&10), 0);
+    assert_eq!(discriminant_value(&"test"), 0);
 
-        assert_eq!(discriminant_value(&10), 0);
-        assert_eq!(discriminant_value(&"test"), 0);
-
-        assert_eq!(3, discriminant_value(&Mixed::Unit));
-        assert_eq!(2, discriminant_value(&Mixed::Tuple(5)));
-        assert_eq!(1, discriminant_value(&Mixed::Struct{a: 7, b: 11}));
-    }
+    assert_eq!(3, discriminant_value(&Mixed::Unit));
+    assert_eq!(2, discriminant_value(&Mixed::Tuple(5)));
+    assert_eq!(1, discriminant_value(&Mixed::Struct{a: 7, b: 11}));
 }
diff --git a/src/test/ui/issues/issue-43398.rs b/src/test/ui/issues/issue-43398.rs
index ae52e8f3f6b4..f0b762c6254a 100644
--- a/src/test/ui/issues/issue-43398.rs
+++ b/src/test/ui/issues/issue-43398.rs
@@ -7,9 +7,7 @@
 enum Big { A, B }
 
 fn main() {
-    unsafe {
-        println!("{} {:?}",
-            std::intrinsics::discriminant_value(&Big::A),
-            std::mem::discriminant(&Big::B));
-    }
+    println!("{} {:?}",
+        std::intrinsics::discriminant_value(&Big::A),
+        std::mem::discriminant(&Big::B));
 }
diff --git a/src/test/ui/issues/issue-51582.rs b/src/test/ui/issues/issue-51582.rs
index 63ef05729bc5..40a70c623a74 100644
--- a/src/test/ui/issues/issue-51582.rs
+++ b/src/test/ui/issues/issue-51582.rs
@@ -14,5 +14,5 @@ fn main() {
     assert_eq!(1, make_b() as u8);
     assert_eq!(1, make_b() as i32);
     assert_eq!(1, make_b() as u32);
-    assert_eq!(1, unsafe { std::intrinsics::discriminant_value(&make_b()) });
+    assert_eq!(1, std::intrinsics::discriminant_value(&make_b()));
 }