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Re: [PATCH] Refactor the code to remove IS_UNKNOWN_LOCATION


On Wed, Sep 26, 2012 at 6:29 AM, Dehao Chen <dehao@google.com> wrote:
> IS_UNKNOWN_LOCATION is very misleading. This patch removes this macro
> from input.h. For sites when checking LOCUS is intended, we explicit
> use LOCATION_LOCUS and compare it to UNKNOWN_LOCATION.
>
> Bootstrapped and passed all gcc regression tests.
>
> Ok for trunk?

I thought that

   LOCATION_LOCUS (loc) != UNKNOWN_LOCATION

was very verbose and maybe renaming IS_UNKNOWN_LOCATION to

  HAS_UNKNOWN_LOCATION_LOCUS (loc)

would be an improvement.  But I see that this may be as confusing as
the original IS_UNKNOWN_LOCATION.

Thus the patch is ok if nobody objects within 24h.

Thanks,
Richard.

> Thanks,
> Dehao
>
> gcc/ChangeLog:
>
> 2012-09-25  Dehao Chen  <dehao@google.com>
>
>         * gcc/tree.h (tree_constructor): Remove IS_UNKNOWN_LOCATION.
>         (extern void protected_set_expr_location): Likewise.
>         (function_args_iter_next): Likewise.
>         (inlined_function_outer_scope_p): Likewise.
>         * gcc/input.h (IS_UNKNOWN_LOCATION): Likewise.
>         * gcc/fold-const.c (expr_location_or): Likewise.
>         * gcc/lto-cgraph.c (output_node_opt_summary): Likewise.
>         * gcc/dwarf2out.c (add_src_coords_attributes): Likewise.
>         * gcc/tree-eh.c (lower_try_finally_dup_block): Likewise.
>         * gcc/profile.c (branch_prob):
>         * gcc/cfgexpand.c (expand_gimple_cond): Likewise.
>         (expand_gimple_basic_block): Likewise.
>         (construct_exit_block): Likewise.
>         (gimple_expand_cfg): Likewise.
>         * gcc/cfgcleanup.c (try_forward_edges): Likewise.
>         * gcc/tree-ssa-live.c (remove_unused_scope_block_p): Likewise.
>         (dump_scope_block): Likewise.
>         * gcc/ipa-prop.c (ipa_write_jump_function): Likewise.
>         * gcc/rtl.h (extern void rtl_check_failed_flag): Likewise.
>         * gcc/gimple.h (gimple_set_location): Likewise.
>         (gimple_has_location): Likewise.
>         * gcc/cfgrtl.c (unique_locus_on_edge_between_p): Likewise.
>         (force_nonfallthru_and_redirect): Likewise.
>         (fixup_reorder_chain): Likewise.
>         (cfg_layout_merge_blocks): Likewise.


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