re PR tree-optimization/53748 (ice in fold_convert_loc)

	PR tree-optimization/53748
	* tree-ssa-phiopt.c (conditional_replacement): Only optimize
	if arg0/arg1 have integral or pointer types.

	* gcc.c-torture/compile/pr53748.c: New test.

From-SVN: r188975

gcc/ChangeLog

+2012-06-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/53748
+	* tree-ssa-phiopt.c (conditional_replacement): Only optimize
+	if arg0/arg1 have integral or pointer types.
+
 2012-06-25  Richard Henderson  <rth@redhat.com>
 
 	* config/i386/sse.md (sse2_sse4_1): Remove code attr.

gcc/testsuite/ChangeLog

+2012-06-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/53748
+	* gcc.c-torture/compile/pr53748.c: New test.
+
 2012-06-25  Jason Merrill  <jason@redhat.com>
 
 	PR c++/53498

gcc/testsuite/gcc.c-torture/compile/pr53748.c

+/* PR tree-optimization/53748 */
+
+typedef unsigned int V __attribute__ ((__vector_size__ (sizeof (int) * 4)));
+
+void
+foo (int x, V *y)
+{
+  *y = x ? ((V) { ~0U, ~0U, ~0U, ~0U }) : ((V) { 0, 0, 0, 0 });
+}

gcc/tree-ssa-phiopt.c

@@ -615,8 +615,12 @@ conditional_replacement (basic_block cond_bb, basic_block middle_bb,
   bool neg;
 
   /* FIXME: Gimplification of complex type is too hard for now.  */
-  if (TREE_CODE (TREE_TYPE (arg0)) == COMPLEX_TYPE
-      || TREE_CODE (TREE_TYPE (arg1)) == COMPLEX_TYPE)
+  /* We aren't prepared to handle vectors either (and it is a question
+     if it would be worthwhile anyway).  */
+  if (!(INTEGRAL_TYPE_P (TREE_TYPE (arg0))
+	|| POINTER_TYPE_P (TREE_TYPE (arg0)))
+      || !(INTEGRAL_TYPE_P (TREE_TYPE (arg1))
+	   || POINTER_TYPE_P (TREE_TYPE (arg1))))
     return false;
 
   /* The PHI arguments have the constants 0 and 1, or 0 and -1, then