re PR tree-optimization/66233 (internal compiler error: in expand_fix, at optabs.c:5358)

	PR tree-optimization/66233
	* match.pd (ocvt (icvt@1 @0)): Don't handle vector types.
	Simplify.

	* gcc.c-torture/execute/pr66233.c: New test.

From-SVN: r223500

gcc/ChangeLog

+2015-05-21  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/66233
+	* match.pd (ocvt (icvt@1 @0)): Don't handle vector types.
+	Simplify.
+
 2015-05-21  Jeff Law  <law@redhat.com>
 
 	* config/pa/pa.md (add-with-constant splitter): Use ASHIFT rather

gcc/match.pd

@@ -730,16 +730,12 @@ along with GCC; see the file COPYING3.  If not see
       (for integers).  Avoid this if the final type is a pointer since
       then we sometimes need the middle conversion.  Likewise if the
       final type has a precision not equal to the size of its mode.  */
-   (if (((inter_int && inside_int)
-	 || (inter_float && inside_float)
-	 || (inter_vec && inside_vec))
+   (if (((inter_int && inside_int) || (inter_float && inside_float))
+	&& (final_int || final_float)
 	&& inter_prec >= inside_prec
-	&& (inter_float || inter_vec
-	    || inter_unsignedp == inside_unsignedp)
-	&& ! (final_prec != GET_MODE_PRECISION (element_mode (type))
-	      && element_mode (type) == element_mode (inter_type))
-	&& ! final_ptr
-	&& (! final_vec || inter_prec == inside_prec))
+	&& (inter_float || inter_unsignedp == inside_unsignedp)
+	&& ! (final_prec != GET_MODE_PRECISION (TYPE_MODE (type))
+	      && TYPE_MODE (type) == TYPE_MODE (inter_type)))
     (ocvt @0))
 
    /* If we have a sign-extension of a zero-extended value, we can

gcc/testsuite/ChangeLog

+2015-05-21  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/66233
+	* gcc.c-torture/execute/pr66233.c: New test.
+
 2015-05-21  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/66176

gcc/testsuite/gcc.c-torture/execute/pr66233.c

+/* PR tree-optimization/66233 */
+
+unsigned int v[8];
+
+__attribute__((noinline, noclone)) void
+foo (void)
+{
+  int i;
+  for (i = 0; i < 8; i++)
+    v[i] = (float) i;
+}
+
+int
+main ()
+{
+  unsigned int i;
+  foo ();
+  for (i = 0; i < 8; i++)
+    if (v[i] != i)
+      __builtin_abort ();
+  return 0;
+}