* calls.c (expand_call): Likewise for
`old_stack_arg_under_construction'.
* cpphash.c (macroexpand): Likewise for `args' and `rest_zero'.
* function.c (pad_to_arg_alignment): Likewise for `save_var' and
`save_constant'.
* gcc.c (execute): Likewise for `ut' and `st'.
* genattrtab.c (attr_rtx): Likewise for `rt_val'.
* genopinit.c (gen_insn): Likewise for `m1', `m2' and `op'.
* jump.c (jump_optimize_1): Likewise for `temp2'.
* local-alloc.c (block_alloc): Likewise for `r1'.
* loop.c (recombine_givs): Likewise for `life_start' and `life_end'.
* reg-stack.c (check_asm_stack_operands): Likewise for `clobber_reg'.
(subst_asm_stack_regs): Likewise for `clobber_reg' and `clobber_loc'.
* regmove.c (fixup_match_1): Likewise for `insn_const', `dst_node'
and `set2'.
* reload.c (find_reloads): Likewise for `goal_alternative_number'
and `goal_earlyclobber'.
* scan-decls.c (scan_decls): Likewise for `prev_id_end'.
* sdbout.c (sdbout_one_type): Likewise for `member_scl'.
* stupid.c (stupid_life_analysis): Likewise for `chain'.
* unroll.c (copy_loop_body): Likewise for `copy'.
* varasm.c (output_constructor): Likewise for `byte'.
ch:
* actions.c (update_else_range_for_int_const): Initialize
variables `lowval' and `highval'.
(update_else_range_for_range): Likewise for `low_range_val' and
`high_range_val'.