[PATCH C++] Fix PR82357 - bogus "cannot bind bitfield" error

[Markus Trippelsdorf]

r253266 introduced a bogus "cannot bind bitfield" error that breaks
building Chromium and Node.js.
Fix by removing the ugly goto.

Tested on ppc64le.
Ok for trunk?
Thanks.

        PR c++/82357
        * typeck.c (build_static_cast): Handle processing_template_decl
        without using goto.

diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index 08b2ae555e63..00688a21421c 100644
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -7059,9 +7059,8 @@ build_static_cast (tree type, tree oexpr, tsubst_flags_t 
complain)
 
   bool dependent = (dependent_type_p (type)
                    || type_dependent_expression_p (expr));
-  if (dependent)
+  if (dependent || processing_template_decl)
     {
-    tmpl:
       expr = build_min (STATIC_CAST_EXPR, type, oexpr);
       /* We don't know if it will or will not have side effects.  */
       TREE_SIDE_EFFECTS (expr) = 1;
@@ -7084,8 +7083,6 @@ build_static_cast (tree type, tree oexpr, tsubst_flags_t 
complain)
          maybe_warn_about_useless_cast (type, expr, complain);
          maybe_warn_about_cast_ignoring_quals (type, complain);
        }
-      if (processing_template_decl)
-       goto tmpl;
       return result;
     }
 
diff --git a/gcc/testsuite/g++.dg/template/bitfield4.C 
b/gcc/testsuite/g++.dg/template/bitfield4.C
new file mode 100644
index 000000000000..d53b0d406275
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/bitfield4.C
@@ -0,0 +1,6 @@
+// PR c++/82357
+
+template <typename> struct A {
+  A() { x |= 0; } // { dg-bogus "cannot bind bitfield" }
+  int x : 8;
+};
-- 
Markus