From: "H.J. Lu" <hjl.tools@gmail.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Jason Merrill <jason@redhat.com>,
Richard Henderson <rth@redhat.com>,
gcc-patches@gcc.gnu.org, Steve Ellcey <sje@cup.hp.com>
Subject: Re: [PATCH] Fix up typed DWARF stack support for POINTERS_EXTEND_UNSIGNED targets (PR debug/48853)
Date: Thu, 12 May 2011 17:38:00 -0000 [thread overview]
Message-ID: <BANLkTikY3OFT1KuuZSSxMVxyLusvhf+p9A@mail.gmail.com> (raw)
In-Reply-To: <20110512145610.GL17079@tyan-ft48-01.lab.bos.redhat.com>
On Thu, May 12, 2011 at 7:56 AM, Jakub Jelinek <jakub@redhat.com> wrote:
> On Wed, May 11, 2011 at 12:28:18PM -0700, H.J. Lu wrote:
>> This patch restores the old behavior for Pmode. OK for trunk if there
>> are no regressions?
>
> That is IMHO wrong, ignoring subregs is a very bad idea.
> While you can workaround generation of the DW_OP_GNU_convert that way
> (why do you want that?, just install newer gdb that has typed dwarf stack
> support, coming hopefully soon), you'd get incorrect debug info for
> long long to int casts.
>
I will wait for the new gdb.
Thanks.
--
H.J.
next prev parent reply other threads:[~2011-05-12 15:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-05 9:22 Jakub Jelinek
2011-05-05 14:53 ` Jason Merrill
2011-05-05 15:24 ` Jakub Jelinek
2011-05-05 15:29 ` Jason Merrill
2011-05-07 5:21 ` H.J. Lu
2011-05-09 19:24 ` Jason Merrill
2011-05-11 22:14 ` H.J. Lu
2011-05-12 16:40 ` Jakub Jelinek
2011-05-12 17:38 ` H.J. Lu [this message]
2011-05-12 19:55 ` Tom Tromey
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