From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Thu, 24 Feb 2011 04:02:33 +0000 (+0000)
Subject: Don't crash on type switch of untyped value.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=acabc10c983db7b55fda3b02f7c0a9d779e0245a;p=gcc.git

Don't crash on type switch of untyped value.

From-SVN: r170456
---

diff --git a/gcc/go/gofrontend/statements.cc b/gcc/go/gofrontend/statements.cc
index 629fdd81615..c87574dff1c 100644
--- a/gcc/go/gofrontend/statements.cc
+++ b/gcc/go/gofrontend/statements.cc
@@ -3911,7 +3911,11 @@ Type_switch_statement::do_lower(Gogo*, Block* enclosing)
       if (val_type->is_nil_type())
 	rhs = Expression::make_nil(loc);
       else
-	rhs = Expression::make_type_descriptor(val_type, loc);
+	{
+	  if (val_type->is_abstract())
+	    val_type = val_type->make_non_abstract_type();
+	  rhs = Expression::make_type_descriptor(val_type, loc);
+	}
       Statement* s = Statement::make_assignment(lhs, rhs, loc);
       b->add_statement(s);
     }