* trans.h (struct gfc_ss): New field parent.

[pf3gnuchains/gcc-fork.git] / gcc / fortran / trans-expr.c

diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c
index e091c89..72d35f8 100644 (file)
--- a/gcc/fortran/trans-expr.c
+++ b/gcc/fortran/trans-expr.c
@@ -83,6 +83,7 @@ void
 gfc_advance_se_ss_chain (gfc_se * se)
 {
   gfc_se *p;
+  gfc_ss *ss;
 
   gcc_assert (se != NULL && se->ss != NULL && se->ss != gfc_ss_terminator);
 
@@ -93,7 +94,15 @@ gfc_advance_se_ss_chain (gfc_se * se)
       /* Simple consistency check.  */
       gcc_assert (p->parent == NULL || p->parent->ss == p->ss);
 
-      p->ss = p->ss->next;
+      /* If we were in a nested loop, the next scalarized expression can be
+        on the parent ss' next pointer.  Thus we should not take the next
+        pointer blindly, but rather go up one nest level as long as next
+        is the end of chain.  */
+      ss = p->ss;
+      while (ss->next == gfc_ss_terminator && ss->parent != NULL)
+       ss = ss->parent;
+
+      p->ss = ss->next;
 
       p = p->parent;
     }