2013-04-18 Tobias Burnus <burnus@net-b.de>

        * expr.c (find_array_element): Don't copy expr.
        * data.c (create_character_initializer): Free expr.
        * frontend-passes.c (combine_array_constructor): Ditto.
        * match.c (match_typebound_call, gfc_match_select_type): Ditto.
        * resolve.c (resolve_typebound_function): Free gfc_ref.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198068 138bc75d-0d04-0410-961f-82ee72b054a4

6 files changed, 27 insertions, 5 deletions

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 0421d18d314..2f2d5ee440d 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,5 +1,13 @@
 2013-04-18  Tobias Burnus  <burnus@net-b.de>
 
+	* expr.c (find_array_element): Don't copy expr.
+	* data.c (create_character_initializer): Free expr.
+	* frontend-passes.c (combine_array_constructor): Ditto.
+	* match.c (match_typebound_call, gfc_match_select_type): Ditto.
+	* resolve.c (resolve_typebound_function): Free gfc_ref.
+
+2013-04-18  Tobias Burnus  <burnus@net-b.de>
+
 	PR fortran/56994
 	* invoke.texi (NEAREST): S argument is not optional.
 
diff --git a/gcc/fortran/data.c b/gcc/fortran/data.c
index f297ef56faf..a1c89fa1f06 100644
--- a/gcc/fortran/data.c
+++ b/gcc/fortran/data.c
@@ -106,6 +106,7 @@ create_character_initializer (gfc_expr *init, gfc_typespec *ts,
 {
   int len, start, end;
   gfc_char_t *dest;
+  bool alloced_init = false;
 	    
   gfc_extract_int (ts->u.cl->length, &len);
 
@@ -114,6 +115,7 @@ create_character_initializer (gfc_expr *init, gfc_typespec *ts,
       /* Create a new initializer.  */
       init = gfc_get_character_expr (ts->kind, NULL, NULL, len);
       init->ts = *ts;
+      alloced_init = true;
     }
 
   dest = init->value.character.string;
@@ -134,6 +136,10 @@ create_character_initializer (gfc_expr *init, gfc_typespec *ts,
 	{
 	  gfc_error ("failure to simplify substring reference in DATA "
 		     "statement at %L", &ref->u.ss.start->where);
+	  gfc_free_expr (start_expr);
+	  gfc_free_expr (end_expr);
+	  if (alloced_init)
+	    gfc_free_expr (init);
 	  return NULL;
 	}
 
diff --git a/gcc/fortran/expr.c b/gcc/fortran/expr.c
index 490cdaaf2d8..ab62c180d3d 100644
--- a/gcc/fortran/expr.c
+++ b/gcc/fortran/expr.c
@@ -1209,7 +1209,7 @@ find_array_element (gfc_constructor_base base, gfc_array_ref *ar,
 	  goto depart;
 	}
 
-      e = gfc_copy_expr (ar->start[i]);
+      e = ar->start[i];
       if (e->expr_type != EXPR_CONSTANT)
 	{
 	  cons = NULL;
@@ -1258,8 +1258,6 @@ depart:
   mpz_clear (offset);
   mpz_clear (span);
   mpz_clear (tmp);
-  if (e)
-    gfc_free_expr (e);
   *rval = cons;
   return t;
 }
diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c
index 3946c0c3461..68e7e053056 100644
--- a/gcc/fortran/frontend-passes.c
+++ b/gcc/fortran/frontend-passes.c
@@ -1073,6 +1073,7 @@ combine_array_constructor (gfc_expr *e)
 
   gfc_free_expr (op1);
   gfc_free_expr (op2);
+  gfc_free_expr (scalar);
 
   e->value.constructor = newbase;
   return true;
diff --git a/gcc/fortran/match.c b/gcc/fortran/match.c
index b5e9609d965..07f8f638727 100644
--- a/gcc/fortran/match.c
+++ b/gcc/fortran/match.c
@@ -4077,11 +4077,15 @@ match_typebound_call (gfc_symtree* varst)
   if (m == MATCH_NO)
     gfc_error ("Expected component reference at %C");
   if (m != MATCH_YES)
-    return MATCH_ERROR;
+    {
+      gfc_free_expr (base);
+      return MATCH_ERROR;
+    }
 
   if (gfc_match_eos () != MATCH_YES)
     {
       gfc_error ("Junk after CALL at %C");
+      gfc_free_expr (base);
       return MATCH_ERROR;
     }
 
@@ -4093,6 +4097,7 @@ match_typebound_call (gfc_symtree* varst)
     {
       gfc_error ("Expected type-bound procedure or procedure pointer component "
 		 "at %C");
+      gfc_free_expr (base);
       return MATCH_ERROR;
     }
   new_st.expr1 = base;
@@ -5371,7 +5376,7 @@ gfc_match_select_type (void)
     {
       m = gfc_match (" %e ", &expr1);
       if (m != MATCH_YES)
-	goto cleanup;
+	return m;
     }
 
   m = gfc_match (" )%t");
@@ -5417,6 +5422,8 @@ gfc_match_select_type (void)
   return MATCH_YES;
 
 cleanup:
+  gfc_free_expr (expr1);
+  gfc_free_expr (expr2);
   return m;
 }
 
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index 90bce536c2d..6e1f56f707d 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -5719,6 +5719,8 @@ resolve_typebound_function (gfc_expr* e)
 	correct typespec.  */
       e->ts = ts;
     }
+  else if (new_ref)
+    gfc_free_ref_list (new_ref);
 
   return true;
 }