From: Steven G. Kargl <kargl@gcc.gnu.org>
Date: Fri, 25 May 2018 19:54:51 +0000 (+0000)
Subject: re PR fortran/85780 (ICE in resolve_fl_procedure, at fortran/resolve.c:12504)
X-Git-Tag: releases/gcc-6.5.0~303
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e11cea4333ced567eae1592b485fcc67eb99b3c;p=thirdparty%2Fgcc.git

re PR fortran/85780 (ICE in resolve_fl_procedure, at fortran/resolve.c:12504)

2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85780
	Backport from trunk
	* resolve.c (resolve_fl_procedure): Avoid NULL dereference.

2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85780
	Backport from trunk
	* gfortran.dg/pr85780.f90: New test.

From-SVN: r260777
---

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 116750cc641d..6280088da0d2 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/85780
+	Backport from trunk
+	* resolve.c (resolve_fl_procedure): Avoid NULL dereference.
+
 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/85779
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index 001705b1bb70..548ce8e92a7f 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -11998,7 +11998,7 @@ resolve_fl_procedure (gfc_symbol *sym, int mp_flag)
       while (curr_arg != NULL)
         {
           /* Skip implicitly typed dummy args here.  */
-	  if (curr_arg->sym->attr.implicit_type == 0)
+	  if (curr_arg->sym && curr_arg->sym->attr.implicit_type == 0)
 	    if (!gfc_verify_c_interop_param (curr_arg->sym))
 	      /* If something is found to fail, record the fact so we
 		 can mark the symbol for the procedure as not being
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e80ae13e58e6..154d42ac4003 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/85780
+	Backport from trunk
+	* gfortran.dg/pr85780.f90: New test.
+
 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/85779
diff --git a/gcc/testsuite/gfortran.dg/pr85780.f90 b/gcc/testsuite/gfortran.dg/pr85780.f90
new file mode 100644
index 000000000000..ad6b27fc4db4
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr85780.f90
@@ -0,0 +1,5 @@
+! { dg-do compile }
+! { dg-options "-std=legacy" }
+! PR fortran/85780
+subroutine s(*) bind(c)
+end