From 18d1696e6a505fedc30dba2a681d0f4e9f9309dc Mon Sep 17 00:00:00 2001
From: Jameson Nash <vtjnash@gmail.com>
Date: Mon, 4 Apr 2016 20:45:24 -0400
Subject: [PATCH] make == type comparisions much cheaper and faster

ref #11425
---
 base/operators.jl | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/base/operators.jl b/base/operators.jl
index cbe42c6c3339b..8129af377f5e4 100644
--- a/base/operators.jl
+++ b/base/operators.jl
@@ -19,8 +19,14 @@ isless(x::AbstractFloat, y::AbstractFloat) = (!isnan(x) & isnan(y)) | (signbit(x
 isless(x::Real,          y::AbstractFloat) = (!isnan(x) & isnan(y)) | (signbit(x) & !signbit(y)) | (x < y)
 isless(x::AbstractFloat, y::Real         ) = (!isnan(x) & isnan(y)) | (signbit(x) & !signbit(y)) | (x < y)
 
-=={T}(::Type{T}, ::Type{T}) = true  # encourage more specialization on types (see #11425)
-==(T::Type, S::Type)        = typeseq(T, S)
+function ==(T::Type, S::Type)
+    @_pure_meta
+    typeseq(T, S)
+end
+function !==(T::Type, S::Type)
+    @_pure_meta
+    !(T == S)
+end
 
 ## comparison fallbacks ##