[PATCH 1/2] Add gcc/typed-splay-tree.h

Jeff Law law@redhat.com
Wed Jul 1 17:35:00 GMT 2015


On 06/29/2015 11:36 AM, David Malcolm wrote:
> On Thu, 2015-06-25 at 13:18 -0600, Jeff Law wrote:
>> On 06/25/2015 01:13 PM, David Malcolm wrote:
>>> I found when implementing switch statements for the jit that it
>>> was much easier to work with libiberty's splay-tree.h by first
>>> wrapping it in a C++ wrapper to add typesafety.
>>>
>>> This patch adds such a wrapper, implementing the methods I needed.
>>>
>>> It's unused in this patch, but is used in the followup patch (which only
>>> touches the jit).
>>>
>>> OK for trunk?
>>>
>>> gcc/ChangeLog:
>>> 	* typed-splay-tree.h: New file.
>> OK.
>
> Well, this is embarrassing, it seems the patch I posted to the list
> doesn't actually compile.
It happens.  It's one of the reasons why we have the rules around 
bootstrap testing :-)  I can't count how many of these kinds of goofs 
I've made through the years.


>
> The underlying splay_tree_insert returns a splay_tree_node, I had the
> typed_splay_tree::insert returning a value_type.  I dropped this bogus
> return type from the "insert" method in the implementation, in favor of
> "void", but I forgot to update the declaration, leading to errors when
> attempting to actually compile this (via jit/jit-recording.c in the
> followup patch).
>
> The attached one-liner patch drops it from the declaration, and applies
> to [PATCH 1/2].  I don't know if I can count this as "obvious"...  It
> does compile now, and "make check-jit" looks good.
I'd think this qualifies :-)

jeff



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