RFR: 8286562: GCC 12 reports some compiler warnings [v5]

[Yasumasa Suenaga]

On Tue, 17 May 2022 04:52:44 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> src/hotspot/share/opto/memnode.cpp line 1413:
>> 
>>> 1411:                    bt == T_BYTE    || bt == T_SHORT ||
>>> 1412:                    bt == T_INT     || bt == T_LONG, "wrong type = %s", type2name(bt));
>>> 1413: PRAGMA_DIAG_POP
>> 
>> The problem here is the definition of type2name, which returns NULL for an unknown BasicType.  It would probably be better if it returned a recognizable string for that situation, eliminating this warning at it's source.
>
> While looking at type2name, I noticed the comment for the immediately preceding type2name_tab is wrong.

The warning has gone in new commit, and I fixed the comment for `type2name_tab` in it.

-------------

PR: https://git.openjdk.java.net/jdk/pull/8646