re PR rtl-optimization/68392 (ICE: SIGSEGV in update_uses (fwprop.c:896) with -fno-checking)

	PR rtl-optimization/68392
	* g++.dg/pr68392.C: New test.

From-SVN: r230818

gcc/testsuite/ChangeLog

+2015-11-24  Michael Matz  <matz@suse.de>
+
+	PR rtl-optimization/68392
+	* g++.dg/pr68392.C: New test.
+
 2015-11-24  Nathan Sidwell  <nathan@acm.org>
 
 	* gcc.dg/sso/dump.h: Force IO to be putchar function call on nvptx.

gcc/testsuite/g++.dg/pr68392.C

+// PR rtl-optimization/68392
+// { dg-do compile }
+// { dg-options "-O -fno-checking" }
+
+void tool_cleanup(bool from_signal)
+{
+  tool_cleanup(from_signal);
+}