Updating SVN tree U gcc/ChangeLog A gcc/testsuite/gcc.dg/tree-ssa/pr66726.c A gcc/testsuite/gcc.dg/tree-ssa/pr66726-2.c U gcc/testsuite/ChangeLog A gcc/testsuite/g++.dg/tree-ssa/pr66726.c U gcc/cse.c U gcc/tree-ssa-phiopt.c U gcc/emit-rtl.c Updated to revision 225722. Adjusting file timestamps