On Tue, Jan 20, 2015 at 10:18:25AM +0100, Richard Biener wrote:
> On Tue, Jan 20, 2015 at 3:31 AM, <[email protected]> wrote:
> > From: Trevor Saunders <[email protected]>
> >
> > Hi,
> >
> > when doing an lto link we can have some symbols be ir only and others be
> > machine code, which trips the assert here. Just adjust the assert to handle
> > that.
> >
> > bootstrapped + regtested x86_64-linux-gnu, ok?
>
> Testcase? It's hard to understand what "machine code" is otherwise
> or why this assert would fail.
>
> Thanks,
the one in the pr, basically one file is compiled without -flto and then
linked with -flto that + an odr violation making the two object files
different sets of thunks.
does the lto test suite support not passing -flto to one compilation? it
wasn't clear to me how to put the test case in the testsuite.
Trev
> Richard.
>
> > Trev
> >
> > gcc/
> >
> > * ipa-visibility.c (update_visibility_by_resolution_info): Only
> > assert when not in lto mode.
> > ---
> > gcc/ipa-visibility.c | 18 +++++++++++++-----
> > 1 file changed, 13 insertions(+), 5 deletions(-)
> >
> > diff --git a/gcc/ipa-visibility.c b/gcc/ipa-visibility.c
> > index 71894af..0791a1c 100644
> > --- a/gcc/ipa-visibility.c
> > +++ b/gcc/ipa-visibility.c
> > @@ -425,11 +425,19 @@ update_visibility_by_resolution_info (symtab_node *
> > node)
> > if (node->same_comdat_group)
> > for (symtab_node *next = node->same_comdat_group;
> > next != node; next = next->same_comdat_group)
> > - gcc_assert (!next->externally_visible
> > - || define == (next->resolution ==
> > LDPR_PREVAILING_DEF_IRONLY
> > - || next->resolution == LDPR_PREVAILING_DEF
> > - || next->resolution == LDPR_UNDEF
> > - || next->resolution ==
> > LDPR_PREVAILING_DEF_IRONLY_EXP));
> > + {
> > + if (!next->externally_visible)
> > + continue;
> > +
> > + bool same_def
> > + = define == (next->resolution == LDPR_PREVAILING_DEF_IRONLY
> > + || next->resolution == LDPR_PREVAILING_DEF
> > + || next->resolution == LDPR_UNDEF
> > + || next->resolution ==
> > LDPR_PREVAILING_DEF_IRONLY_EXP);
> > + gcc_assert (in_lto_p || same_def);
> > + if (!same_def)
> > + return;
> > + }
> >
> > if (node->same_comdat_group)
> > for (symtab_node *next = node->same_comdat_group;
> > --
> > 2.1.4
> >
