2013-11-06 Richard Biener <rguenther@suse.de>
* tree.c (drop_tree_overflow): New function.
* tree.h (drop_tree_overflow): Declare.
* gimplify.c (gimplify_expr): Drop TREE_OVERFLOW.
* tree-vrp.c (range_int_cst_singleton_p): Use
is_overflow_infinity instead of testing TREE_OVERFLOW.
(extract_range_from_assert): Likewise.
(zero_nonzero_bits_from_vr): Likewise.
(extract_range_basic): Likewise.
(register_new_assert_for): Use drop_tree_overflow.
(vrp_visit_phi_node): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204454 138bc75d-0d04-0410-961f-82ee72b054a4