re PR fortran/77765 (ICE in gfc_match_oacc_routine, at fortran/openmp.c:1781)

	PR fortran/77765

	gcc/fortran/
	* openmp.c (gfc_match_oacc_routine): Check if proc_name exist before
	comparing the routine name against it.

	gcc/testsuite/
	* gfortran.dg/goacc/pr77765.f90: New test.

From-SVN: r249809

gcc/fortran/ChangeLog

+2017-06-29  Cesar Philippidis  <cesar@codesourcery.com>
+
+	PR fortran/77765
+	* openmp.c (gfc_match_oacc_routine): Check if proc_name exist before
+	comparing the routine name against it.
+
 2017-06-27  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
 	PR fortran/80164

gcc/fortran/openmp.c

@@ -2295,7 +2295,8 @@ gfc_match_oacc_routine (void)
 	  if (st)
 	    {
 	      sym = st->n.sym;
-	      if (strcmp (sym->name, gfc_current_ns->proc_name->name) == 0)
+	      if (gfc_current_ns->proc_name != NULL
+		  && strcmp (sym->name, gfc_current_ns->proc_name->name) == 0)
 	        sym = NULL;
 	    }
 

gcc/testsuite/ChangeLog

+2017-06-29  Cesar Philippidis  <cesar@codesourcery.com>
+
+	PR fortran/77765
+	* gfortran.dg/goacc/pr77765.f90: New test.
+
 2017-06-29  Steve Ellcey  <sellcey@cavium.com>
 
 	* gcc.target/aarch64/ccmp_2.c: New test.

gcc/testsuite/gfortran.dg/goacc/pr77765.f90

+! Test the presence of an ACC ROUTINE directive inside a function
+! containg an error.
+
+! { dg-do compile }
+
+module m
+contains
+  recursive function f(x)
+  end function f
+  recursive function f(x)
+    !$acc routine (f)
+  end function f
+end module m
+
+! { dg-error "Procedure 'f' at .1. is already defined" "" { target *-*-* } 8 }
+! { dg-error "Duplicate RECURSIVE attribute specified" "" { target *-*-* } 8 }
+! { dg-error ".1." "" { target *-*-* } 10 }
+! { dg-error "Unexpected ..ACC ROUTINE" "" { target *-*-* } 11 }
+! { dg-error "Expecting END MODULE statement" "" { target *-*-* } 12 }