re PR tree-optimization/14470 ([tree-ssa] trouble with post-increment)

	PR middle-end/14470
	* expr.c (store_expr): Call emit_queue before generating the move
	from the temporary to the original target.  Protect the temporary
	from emit_queue.

From-SVN: r79452

gcc/ChangeLog

+2004-03-13  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
+	PR middle-end/14470
+	* expr.c (store_expr): Call emit_queue before generating the move
+	from the temporary to the original target.  Protect the temporary
+	from emit_queue.
+
 2004-03-13  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/14533

gcc/expr.c

@@ -4245,7 +4245,9 @@ store_expr (tree exp, rtx target, int want_value)
 	 bit-initialized.  */
       && expr_size (exp) != const0_rtx)
     {
+      emit_queue();
       target = protect_from_queue (target, 1);
+      temp = protect_from_queue (temp, 0);
       if (GET_MODE (temp) != GET_MODE (target)
 	  && GET_MODE (temp) != VOIDmode)
 	{

gcc/testsuite/ChangeLog

+2004-03-13  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
+	* gcc.c-torture/execute/20040313-1.c: New test.
+
 2004-03-13  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/14533
@@ -21388,3 +21392,4 @@ rlsruhe.de>
 	correspond to c-torture	1.11.
 
 	* New file.
+

gcc/testsuite/gcc.c-torture/execute/20040313-1.c

+/* PR middle-end/14470 */
+/* Origin: Lodewijk Voge <lvoge@cs.vu.nl> */
+
+extern void abort(void);
+
+int main()
+{
+  int t[1025] = { 1024 }, d;
+
+  d = 0;
+  d = t[d]++;
+  if (t[0] != 1025)
+    abort();
+  if (d != 1024)
+    abort();
+  return 0;
+}