--- a/gcc/go/lang.opt	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/go/lang.opt	Thu Oct 25 07:37:49 2018 +0900
@@ -1,6 +1,6 @@
 ; lang.opt -- Options for the gcc Go front end.
 
-; Copyright (C) 2009-2017 Free Software Foundation, Inc.
+; Copyright (C) 2009-2018 Free Software Foundation, Inc.
 ;
 ; This file is part of GCC.
 ;
@@ -58,7 +58,7 @@
 -fgo-dump-<type>	Dump Go frontend internal information.
 
 fgo-optimize-
-Go Joined RejectNegative
+Go Joined
 -fgo-optimize-<type>	Turn on optimization passes in the frontend.
 
 fgo-pkgpath=
@@ -81,6 +81,10 @@
 Go Joined UInteger Var(go_debug_escape_level) Init(0)
 Emit debugging information related to the escape analysis pass when run with -fgo-optimize-allocs.
 
+fgo-debug-escape-hash=
+Go Joined RejectNegative Var(go_debug_escape_hash) Init(0)
+-fgo-debug-escape-hash=<string>	Hash value to debug escape analysis.
+
 o
 Go Joined Separate
 ; Documented in common.opt