gcse.c (record_one_set): Prepend instead of append onto reg_set_table, making it O(n) instead O(n^2).
* gcse.c (record_one_set): Prepend instead of append onto
reg_set_table, making it O(n) instead O(n^2).
* lcm.c (compute_antinout_edge,compute_laterin,compute_available):
Use a queue instead of a stack as worklist.
From-SVN: r35158
