* tree-complex.c (expand_complex_div_wide): Don't create CONDs that
	trap.
	* tree-gimple.c (is_gimple_condexpr): Check that the expression doesn't
	trap and that both operands are gimple values.
	(canonicalize_cond_expr_cond): Use is_gimple_condexpr.
	* gcc/tree-eh.c (tree_could_trap_p): Correctly detect if a comparison
	is a fp operation.

	* gcc/testsuite/gcc.dg/vect/vect-111.c: Rename to no-trapping-math-vect-111.c
	* gcc/testsuite/gcc.dg/vect/vect-ifcvt-11.c: Rename to no-trapping-math-vect-ifcvt-11.c
	* gcc/testsuite/gcc.dg/vect/vect-ifcvt-12.c: Rename to no-trapping-math-vect-ifcvt-12.c
	* gcc/testsuite/gcc.dg/vect/vect-ifcvt-13.c: Rename to no-trapping-math-vect-ifcvt-13.c
	* gcc/testsuite/gcc.dg/vect/vect-ifcvt-14.c: Rename to no-trapping-math-vect-ifcvt-14.c
	* gcc/testsuite/gcc.dg/vect/vect-ifcvt-15.c: Rename to no-trapping-math-vect-ifcvt-15.c

From-SVN: r135093