[Bug lto/59626] [4.8 Regression] /usr/include/bits/unistd.h:173:1: error: inlining failed in call to always_inline 'readlinkat': recursive inlining

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59626

--- Comment #25 from Arseny Solokha <asolokha at gmx dot com> ---
I observe it when building gcc-6.0.0_alpha20150517 snapshot using gcc 5.1.0
without LTO:

/bin/bash ./libtool --tag=CXX   --mode=compile powerpc-e500v2-linux-gnuspe-c++
-B/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/build/powerpc-e500v2-linux-gnuspe/libstdc++-v3/src/.libs
-B/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/build/powerpc-e500v2-linux-gnuspe/libstdc++-v3/libsupc++/.libs
  -DHAVE_CONFIG_H -I.
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm

-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/linux/powerpc
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/linux
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/powerpc
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/posix
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/generic
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm
 -ftls-model=initial-exec -mhtm -Wall -Werror  -Wc,-pthread -std=gnu++0x
-funwind-tables -fno-exceptions -fno-rtti -fabi-version=4 -g -O2 -pipe
-D_GNU_SOURCE -MT util.lo -MD -MP -MF .deps/util.Tpo -c -o util.lo
/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/util.cc
libtool: compile:  powerpc-e500v2-linux-gnuspe-c++
-B/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/build/powerpc-e500v2-linux-gnuspe/libstdc++-v3/src/.libs
-B/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/build/powerpc-e500v2-linux-gnuspe/libstdc++-v3/libsupc++/.libs
-DHAVE_CONFIG_H -I.
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/linux/powerpc
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/linux
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/powerpc
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/posix
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/config/generic
-I/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm
-ftls-model=initial-exec -mhtm -Wall -pthread -Werror -std=gnu++0x
-funwind-tables -fno-exceptions -fno-rtti -fabi-version=4 -g -O2 -pipe
-D_GNU_SOURCE -MT util.lo -MD -MP -MF .deps/util.Tpo -c
/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/util.cc
 -fPIC -DPIC -o .libs/util.o
In file included from
/usr/powerpc-e500v2-linux-gnuspe/usr/include/stdio.h:936:0,
                 from
/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/util.cc:27:
/usr/powerpc-e500v2-linux-gnuspe/usr/include/bits/stdio2.h: In function 'void
GTM::gtm_verror(const char*, __va_list_tag*)':
/usr/powerpc-e500v2-linux-gnuspe/usr/include/bits/stdio2.h:124:1: error:
inlining failed in call to always_inline 'int vfprintf(FILE*, const char*,
__va_list_tag*)': function body can be overwritten at link time
 vfprintf (FILE *__restrict __stream,
 ^
/usr/powerpc-e500v2-linux-gnuspe/tmp/portage/sys-devel/gcc-6.0.0_alpha20150517/work/gcc-6-20150517/libitm/util.cc:35:31:
error: called from here
   vfprintf (stderr, fmt, list);
                               ^