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From: "jamborm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/97578] ice during IPA pass: inline
Date: Mon, 02 Nov 2020 16:26:07 +0000 [thread overview]
Message-ID: <bug-97578-4-wTxDOhzwDh@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-97578-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97578
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jamborm at gcc dot gnu.org
--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> ---
(In reply to Jan Hubicka from comment #5)
> Hi,
> this patch fixes the ICE, though I think we do have a design issue here
> while producing debug info across ltrans boundary.
>
> Martin, Jakub: as discussed on IRC it would be nice to add predicate
> when the body is really needed and avoid materializing if it is not.
> Can you add one?
>
> Something like param_adjustemnts->need_callee_parm_decls_p ()
I think that in practice the existence of param_adjustemnts is by far
the biggest part of the test and the patch already checks for that.
A more precise check would probably be the following?
/* Return true if any of the original parameters of the function has been
removed or replaced. */
bool
ipa_param_adjustments::orig_parameter_removed_p ()
{
if (m_always_copy_start == 0)
return false;
unsigned adj_len = vec_safe_length (m_adj_params);
if (adj_len < m_always_copy_start)
return true;
unsigned i;
for (i = 0; i < m_always_copy_start; i++)
{
ipa_adjusted_param *apm = &(*m_adj_params)[i];
if (apm->op != IPA_PARAM_OP_COPY
|| apm->base_index != i)
break;
}
if (i == m_always_copy_start)
return false;
/* In all likelihood, the ith parameter has been removed, verify. */
bool complex_case = false;
for (unsigned j = i; j < adj_len; j++)
{
ipa_adjusted_param *apm = &(*m_adj_params)[j];
if (apm->op == IPA_PARAM_OP_COPY
|| apm->base_index == i)
{
complex_case = true;
break;
}
}
if (!complex_case)
return true;
auto_vec<bool, 16> kept;
kept.safe_grow_cleared (m_always_copy_start - i, true);
for (unsigned j = i; j < adj_len; j++)
{
ipa_adjusted_param *apm = &(*m_adj_params)[j];
if (apm->op == IPA_PARAM_OP_COPY)
kept[apm->base_index - i] = true;
}
for (unsigned j = 0; j < m_always_copy_start - i; j++)
if (!kept[j])
return true;
return false;
}
next prev parent reply other threads:[~2020-11-02 16:26 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 11:35 [Bug c/97578] New: " dcb314 at hotmail dot com
2020-10-26 11:46 ` [Bug c/97578] " marxin at gcc dot gnu.org
2020-10-26 12:21 ` dcb314 at hotmail dot com
2020-10-26 12:37 ` hubicka at gcc dot gnu.org
2020-10-31 12:55 ` su at cs dot ucdavis.edu
2020-11-01 14:48 ` Jan Hubicka
2020-11-01 14:48 ` hubicka at ucw dot cz
2020-11-02 16:26 ` jamborm at gcc dot gnu.org [this message]
2020-11-03 10:56 ` cvs-commit at gcc dot gnu.org
2020-11-03 11:19 ` hubicka at gcc dot gnu.org
2020-11-03 11:21 ` jakub at gcc dot gnu.org
2020-11-03 11:25 ` Jan Hubicka
2020-11-03 11:25 ` hubicka at ucw dot cz
2021-04-27 11:39 ` jakub at gcc dot gnu.org
2021-07-28 7:05 ` rguenth at gcc dot gnu.org
2022-04-13 15:07 ` [Bug c/97578] [11 Regression] " redi at gcc dot gnu.org
2022-04-13 15:09 ` jakub at gcc dot gnu.org
2022-04-13 16:23 ` dcb314 at hotmail dot com
2022-04-13 17:21 ` jamborm at gcc dot gnu.org
2022-04-21 7:48 ` rguenth at gcc dot gnu.org
2023-05-29 10:03 ` jakub at gcc dot gnu.org
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