From: Jamie Prescott <jpresss@yahoo.com>
To: Andrew Pinski <pinskia@gmail.com>
Cc: Ian Lance Taylor <iant@google.com>, gcc@gcc.gnu.org
Subject: Re: nops
Date: Thu, 21 May 2009 17:29:00 -0000 [thread overview]
Message-ID: <597785.9767.qm@web111602.mail.gq1.yahoo.com> (raw)
In-Reply-To: <de8d50360905210822ya33cc90ndc7d201094b6e300@mail.gmail.com>
> From: Andrew Pinski <pinskia@gmail.com>
> To: Jamie Prescott <jpresss@yahoo.com>
> Cc: Ian Lance Taylor <iant@google.com>; gcc@gcc.gnu.org
> Sent: Thursday, May 21, 2009 8:22:00 AM
> Subject: Re: nops
>
> On Thu, May 21, 2009 at 8:13 AM, Jamie Prescott wrote:
> > My target does not have anything special WRT alignment. I even set the
> function
> > alignment to 8, and it still issues gen_nop().
> > This seem to happen only with -O0, or at least I noticed it only under such
> condition
> > so far.
>
> so it happens at -O0 so that the debugger is able to place a
> breakpoint at some gotos.
Thanks! Makes sense, and it means that I can define to an empty insn for the
version of the VM that does not have 'nop'.
- Jamie
prev parent reply other threads:[~2009-05-21 15:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-21 4:52 nops Jamie Prescott
2009-05-21 9:16 ` nops Ian Lance Taylor
2009-05-21 15:47 ` nops Jamie Prescott
2009-05-21 16:12 ` nops Andrew Pinski
2009-05-21 17:29 ` Jamie Prescott [this message]
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