From 6c18b66b6f4cc904065f8abaa442fd112493a36c Mon Sep 17 00:00:00 2001
From: Sergey Andreenko <seandree@microsoft.com>
Date: Thu, 5 Oct 2017 11:21:19 -0700
Subject: [PATCH] fix gtDispTree (#14326)

* fix gtDispTree

It is legal situation when we pass ILNone (for example for local stores:
gtDispChild(tree->gtOp.gtOp1, indentStack, IINone);). In this code we
poped value and didn't push anything back, it ended with the stack
underflow.
---
 src/jit/gentree.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/jit/gentree.cpp b/src/jit/gentree.cpp
index c3fbc27..c095507 100644
--- a/src/jit/gentree.cpp
+++ b/src/jit/gentree.cpp
@@ -10939,8 +10939,12 @@ void Compiler::gtDispTree(GenTreePtr   tree,
                 indentStack->Push(IIEmbedded);
                 lowerArc = IIEmbedded;
                 break;
+            case IINone:
+                indentStack->Push(IINone);
+                lowerArc = IINone;
+                break;
             default:
-                // Should never get here; just use IINone.
+                unreached();
                 break;
         }
     }
-- 
2.7.4