From 284fdc4c1595dba3140d29c453f4966d3e97dfd5 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Wed, 30 Jan 2019 15:57:46 +0000
Subject: [PATCH] compiler: support alias to pointer type as method receiver

    Fixes golang/go#28252.

    Reviewed-on: https://go-review.googlesource.com/c/160077

From-SVN: r268397
---
 gcc/go/gofrontend/MERGE   | 2 +-
 gcc/go/gofrontend/gogo.cc | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 10e20cebfcd..c9d68e1d6a4 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-5af8ee0693944c280b1f529450dbfd4ec1ee451d
+2206f40fc1e0e1e2ba3eacb7388dd26b72729bde
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/gcc/go/gofrontend/gogo.cc b/gcc/go/gofrontend/gogo.cc
index d0d6f3b3b54..b03051c2e80 100644
--- a/gcc/go/gofrontend/gogo.cc
+++ b/gcc/go/gofrontend/gogo.cc
@@ -1944,6 +1944,10 @@ Gogo::start_function(const std::string& name, Function_type* type,
 	  go_assert(at_top_level);
 	  Type* rtype = type->receiver()->type();
 
+	  while (rtype->named_type() != NULL
+		 && rtype->named_type()->is_alias())
+	    rtype = rtype->named_type()->real_type()->forwarded();
+
 	  // We want to look through the pointer created by the
 	  // parser, without getting an error if the type is not yet
 	  // defined.