I've committed this patch as obvious to trunk and the 4.8
4.9 branches.

2014-08-20  Steven G. Kargl  <ka...@gcc.gnu.org>

        PR libgfortran/62188
        * m4/bessel.m4: Avoid indexing off the end of an array.
        * generated/bessel_r10.c: Regenerated.
        * generated/bessel_r16.c: Ditto.
        * generated/bessel_r4.c: Ditto.
        * generated/bessel_r8.c: Ditto.

-- 
Steve

Index: generated/bessel_r10.c
===================================================================
--- generated/bessel_r10.c      (revision 214227)
+++ generated/bessel_r10.c      (working copy)
@@ -162,7 +162,7 @@ bessel_yn_r10 (gfc_array_r10 * const res
 
   x2rev = GFC_REAL_10_LITERAL(2.)/x;
 
-  for (i = 2; i <= n1+n2; i++)
+  for (i = 2; i <= n2 - n1; i++)
     {
 #if defined(GFC_REAL_10_INFINITY)
       if (unlikely (last2 == -GFC_REAL_10_INFINITY))
Index: generated/bessel_r16.c
===================================================================
--- generated/bessel_r16.c      (revision 214227)
+++ generated/bessel_r16.c      (working copy)
@@ -166,7 +166,7 @@ bessel_yn_r16 (gfc_array_r16 * const res
 
   x2rev = GFC_REAL_16_LITERAL(2.)/x;
 
-  for (i = 2; i <= n1+n2; i++)
+  for (i = 2; i <= n2 - n1; i++)
     {
 #if defined(GFC_REAL_16_INFINITY)
       if (unlikely (last2 == -GFC_REAL_16_INFINITY))
Index: generated/bessel_r4.c
===================================================================
--- generated/bessel_r4.c       (revision 214227)
+++ generated/bessel_r4.c       (working copy)
@@ -162,7 +162,7 @@ bessel_yn_r4 (gfc_array_r4 * const restr
 
   x2rev = GFC_REAL_4_LITERAL(2.)/x;
 
-  for (i = 2; i <= n1+n2; i++)
+  for (i = 2; i <= n2 - n1; i++)
     {
 #if defined(GFC_REAL_4_INFINITY)
       if (unlikely (last2 == -GFC_REAL_4_INFINITY))
Index: generated/bessel_r8.c
===================================================================
--- generated/bessel_r8.c       (revision 214227)
+++ generated/bessel_r8.c       (working copy)
@@ -162,7 +162,7 @@ bessel_yn_r8 (gfc_array_r8 * const restr
 
   x2rev = GFC_REAL_8_LITERAL(2.)/x;
 
-  for (i = 2; i <= n1+n2; i++)
+  for (i = 2; i <= n2 - n1; i++)
     {
 #if defined(GFC_REAL_8_INFINITY)
       if (unlikely (last2 == -GFC_REAL_8_INFINITY))
Index: m4/bessel.m4
===================================================================
--- m4/bessel.m4        (revision 214227)
+++ m4/bessel.m4        (working copy)
@@ -163,7 +163,7 @@ bessel_yn_r'rtype_kind` ('rtype` * const
 
   x2rev = GFC_REAL_'rtype_kind`_LITERAL(2.)/x;
 
-  for (i = 2; i <= n1+n2; i++)
+  for (i = 2; i <= n2 - n1; i++)
     {
 #if defined('rtype_name`_INFINITY)
       if (unlikely (last2 == -'rtype_name`_INFINITY))

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