re PR tree-optimization/66349 (ICE on valid code at -O1, -O2 and -O3 on x86_64-linux-gnu in dfs_enumerate_from, at cfganal.c:1195)

2015-06-01  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/66349
	PR tree-optimization/66352
	PR tree-optimization/66357
	* gcc.dg/torture/pr66357.c: New testcase.
	* gcc.dg/torture/pr66349.c: Likewise.
	* gfortran.fortran-torture/compile/pr66352.f90: Likewise.

From-SVN: r223980