From 5bb1afc7e701594d655e3f7271adb87624b0b2ae Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Thu, 23 Apr 2020 20:13:53 +0200
Subject: [PATCH] add back Scalar::null_ptr

---
 src/librustc_middle/mir/interpret/value.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/librustc_middle/mir/interpret/value.rs b/src/librustc_middle/mir/interpret/value.rs
index 25fa3e5e8e0e3..f3c1c87dad484 100644
--- a/src/librustc_middle/mir/interpret/value.rs
+++ b/src/librustc_middle/mir/interpret/value.rs
@@ -188,6 +188,11 @@ impl<'tcx, Tag> Scalar<Tag> {
         }
     }
 
+    #[inline]
+    pub fn null_ptr(cx: &impl HasDataLayout) -> Self {
+        Scalar::Raw { data: 0, size: cx.data_layout().pointer_size.bytes() as u8 }
+    }
+
     #[inline]
     pub fn zst() -> Self {
         Scalar::Raw { data: 0, size: 0 }