re PR middle-end/64292 (FAIL: g++.dg/torture/pr60474.C -O1 (internal compiler error))

	PR middle-end/64292
	* fold-const.c (negate_expr_p): Add INTEGRAL_TYPE_P check.

From-SVN: r218745

gcc/ChangeLog

+2014-12-15  Marek Polacek  <polacek@redhat.com>
+
+	PR middle-end/64292
+	* fold-const.c (negate_expr_p): Add INTEGRAL_TYPE_P check.
+
 2014-12-15  Renlin Li  <renlin.li@arm.com>
 
 	* config/aarch64/aarch64.h (CLZ_DEFINED_VALUE_AT_ZERO): Return 2.

gcc/fold-const.c

@@ -400,7 +400,7 @@ negate_expr_p (tree t)
   switch (TREE_CODE (t))
     {
     case INTEGER_CST:
-      if (TYPE_OVERFLOW_WRAPS (type))
+      if (INTEGRAL_TYPE_P (type) && TYPE_OVERFLOW_WRAPS (type))
 	return true;
 
       /* Check that -CST will not overflow type.  */