From 1c08ced99589114164f057bc4cd020a6bad48af9 Mon Sep 17 00:00:00 2001
From: Oliver Scherer <github35764891676564198441@oli-obk.de>
Date: Wed, 14 Nov 2018 13:28:38 +0100
Subject: [PATCH] Explain early abort legality

---
 src/librustc_mir/interpret/validity.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/librustc_mir/interpret/validity.rs b/src/librustc_mir/interpret/validity.rs
index 4b9ded4c17ee..8ce5a0365cf6 100644
--- a/src/librustc_mir/interpret/validity.rs
+++ b/src/librustc_mir/interpret/validity.rs
@@ -522,6 +522,7 @@ impl<'rt, 'a, 'mir, 'tcx, M: Machine<'a, 'mir, 'tcx>>
                     _ => false,
                 }
             } => {
+                // bailing out for zsts is ok, since the array element type can only be int/float
                 if op.layout.is_zst() {
                     return Ok(());
                 }