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Re: [patch] Fix node weight updates during ipa-cp (issue7812053)
- From: Teresa Johnson <tejohnson at google dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: Richard Biener <richard dot guenther at gmail dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, reply at codereview dot appspotmail dot com
- Date: Tue, 30 Apr 2013 07:02:58 -0700
- Subject: Re: [patch] Fix node weight updates during ipa-cp (issue7812053)
- References: <20130327172238 dot 545EF80580 at tjsboxrox dot mtv dot corp dot google dot com> <CAFiYyc1F7ncAXzN9eN3wuZzpZvk=mpKM7D4CcBt6hCKpeM1xtA at mail dot gmail dot com> <CAAe5K+WCmr8sqGgFm8vVqDGe5Xfe840jBn7Suf5ZGQkezO38Bg at mail dot gmail dot com> <CAMe9rOrM_f9FXimjDROU5CUDPzbELJ4bzinaoS8oqX=eKh5MdQ at mail dot gmail dot com> <CAAe5K+XcV1MT6wZVNCphuc1Mg+MEmJsOR0yLNyPJ4GTMuA=OUw at mail dot gmail dot com> <CAAe5K+WemjbyBgysqg8DDuqC1tNerPNVtwh-2kHnkq=JJ-phOA at mail dot gmail dot com> <CAMe9rOrqhGL3tny1uPDQWdibMgE5EvW35kQUvLU6PEWV0zmepQ at mail dot gmail dot com>
On Mon, Apr 29, 2013 at 12:35 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Mon, Apr 29, 2013 at 10:31 AM, Teresa Johnson <tejohnson@google.com> wrote:
>> FYI, Fixed in r198416.
>>
>> Thanks,
>> Teresa
>>
>
> I noticed that sometimes GCC generates:
>
> _8 = memcpy (ret_6, s_2(D), len_4);
> _8 = memcpy (ret_6, s_2(D), len_4);
> memcpy (_17, buffer_12(D), add_16);
> memcpy (_17, buffer_12(D), add_16);
> memcpy (_25, _28, _27);
> memcpy (_25, _28, _27);
> memcpy (_39, buffer_2, len_4);
> memcpy (_39, buffer_2, len_4);
> memcpy (_16, &fillbuf, pad_1);
> memcpy (_16, &fillbuf, pad_1);
I am getting this too with a profiledbootstrap with LTO. However, this
isn't due to my changes. I had confirmed that after reverting my
changes (r197595 and now the follow-on fix r198416) this problem still
occurs.
Teresa
> ...
>
>
>
> --
> H.J.
--
Teresa Johnson | Software Engineer | tejohnson@google.com | 408-460-2413