From 6d94a87906675510f99d54d4b5ab3cc06ca924fa Mon Sep 17 00:00:00 2001
From: chethega <chethega@gmail.com>
Date: Wed, 21 Nov 2018 20:27:20 +0100
Subject: [PATCH] avoid jl_arrayunset in dicts with bitstypes; add some more
 @inbounds

---
 base/dict.jl | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/base/dict.jl b/base/dict.jl
index 41b36eb5f65fc..44d8dfbb8efb1 100644
--- a/base/dict.jl
+++ b/base/dict.jl
@@ -571,7 +571,7 @@ function getkey(h::Dict{K,V}, key, default) where V where K
 end
 
 function _pop!(h::Dict, index)
-    val = h.vals[index]
+    @inbounds val = h.vals[index]
     _delete!(h, index)
     return val
 end
@@ -619,10 +619,10 @@ function pop!(h::Dict)
     key => val
 end
 
-function _delete!(h::Dict, index)
-    h.slots[index] = 0x2
-    ccall(:jl_arrayunset, Cvoid, (Any, UInt), h.keys, index-1)
-    ccall(:jl_arrayunset, Cvoid, (Any, UInt), h.vals, index-1)
+function _delete!(h::Dict{K,V}, index) where {K,V}
+    @inbounds h.slots[index] = 0x2
+    isbitstype(K) || ccall(:jl_arrayunset, Cvoid, (Any, UInt), h.keys, index-1)
+    isbitstype(V) || ccall(:jl_arrayunset, Cvoid, (Any, UInt), h.vals, index-1)
     h.ndel += 1
     h.count -= 1
     h.age += 1