[Bug target/63892] [5 Regression] gcc.dg/sibcall-3.c fails on darwin with -m32

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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/63892] [5 Regression] gcc.dg/sibcall-3.c fails on darwin with -m32
Date: Sat, 21 Feb 2015 18:03:00 -0000	[thread overview]
Message-ID: <bug-63892-4-eB1D6Mi3zP@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-63892-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63892

--- Comment #16 from Iain Sandoe <iains at gcc dot gnu.org> ---
The first error that comes up is a missing
std::__codecvt_utf8_base<char32_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) [libstdc++ reference to itself]

===

And indeed, if prevent the redirect_callers for darwin (by putting in the &&
sem_item::target_supports_symbol_aliases_p ()), then we get:

nm -P x86_64-apple-darwin12/libstdc++-v3/src/c++11/codecvt.o |c++filt |grep
do_unshift
std::__codecvt_utf8_base<char32_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const T 1540 0
std::__codecvt_utf8_base<char16_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const T 1530 0
std::__codecvt_utf8_base<wchar_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const T 1550 0
std::__codecvt_utf16_base<char32_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const T 1570 0
std::__codecvt_utf16_base<char16_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const T 1560 0
std::__codecvt_utf16_base<wchar_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const T 1580 0
std::__codecvt_utf8_utf16_base<char32_t>::do_unshift(__mbstate_t&, char*,
char*, char*&) const T 1500 0
std::__codecvt_utf8_utf16_base<char16_t>::do_unshift(__mbstate_t&, char*,
char*, char*&) const T 1590 0
std::__codecvt_utf8_utf16_base<wchar_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const T 1f0 0
std::codecvt<char32_t, char, __mbstate_t>::do_unshift(__mbstate_t&, char*,
char*, char*&) const T 1520 0
std::codecvt<char16_t, char, __mbstate_t>::do_unshift(__mbstate_t&, char*,
char*, char*&) const T 1510 0

when that is removed:
$ nm -P codecvt.o |c++filt |grep do_unshift
std::__codecvt_utf8_base<char32_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const U 0 0
std::__codecvt_utf8_base<char16_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const U 0 0
std::__codecvt_utf8_base<wchar_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const U 0 0
std::__codecvt_utf16_base<char32_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const U 0 0
std::__codecvt_utf16_base<char16_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const U 0 0
std::__codecvt_utf16_base<wchar_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const U 0 0
std::__codecvt_utf8_utf16_base<char32_t>::do_unshift(__mbstate_t&, char*,
char*, char*&) const U 0 0
std::__codecvt_utf8_utf16_base<char16_t>::do_unshift(__mbstate_t&, char*,
char*, char*&) const U 0 0
std::__codecvt_utf8_utf16_base<wchar_t>::do_unshift(__mbstate_t&, char*, char*,
char*&) const T 1f0 0
std::codecvt<char32_t, char, __mbstate_t>::do_unshift(__mbstate_t&, char*,
char*, char*&) const U 0 0
std::codecvt<char16_t, char, __mbstate_t>::do_unshift(__mbstate_t&, char*,
char*, char*&) const U 0 0

===

So now to figure out what's missing from the conditions used to decide on
removal of the alias.

next prev parent reply	other threads:[~2015-02-21 17:07 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-15 16:21 [Bug target/63892] New: [5.0 regression] " fxcoudert at gcc dot gnu.org
2014-11-15 16:22 ` [Bug target/63892] " fxcoudert at gcc dot gnu.org
2014-11-15 16:27 ` dominiq at lps dot ens.fr
2014-11-17  9:32 ` rguenth at gcc dot gnu.org
2014-12-10 15:28 ` rguenth at gcc dot gnu.org
2015-02-18 19:49 ` [Bug target/63892] [5 Regression] " law at redhat dot com
2015-02-20  9:32 ` jakub at gcc dot gnu.org
2015-02-20 10:41 ` jakub at gcc dot gnu.org
2015-02-20 12:00 ` marxin at gcc dot gnu.org
2015-02-20 13:04 ` jakub at gcc dot gnu.org
2015-02-20 16:50 ` jakub at gcc dot gnu.org
2015-02-20 16:51 ` jakub at gcc dot gnu.org
2015-02-21 12:51 ` dominiq at lps dot ens.fr
2015-02-21 13:29 ` iains at gcc dot gnu.org
2015-02-21 13:29 ` iains at gcc dot gnu.org
2015-02-21 14:47 ` iains at gcc dot gnu.org
2015-02-21 18:03 ` iains at gcc dot gnu.org [this message]
2015-02-22  4:59 ` iains at gcc dot gnu.org
2015-02-22 13:10 ` iains at gcc dot gnu.org
2015-02-22 16:55 ` iains at gcc dot gnu.org
2015-02-22 22:27 ` howarth at bromo dot med.uc.edu
2015-02-22 23:57 ` iains at gcc dot gnu.org
2015-02-23  8:45 ` iains at gcc dot gnu.org
2015-02-23 11:15 ` jakub at gcc dot gnu.org
2015-02-23 11:15 ` jakub at gcc dot gnu.org
2015-02-27  7:44 ` mrs at gcc dot gnu.org

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