http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57375
Bug ID: 57375
Summary: gnu multiversioning selects different version
depending on link order
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mib.bugzilla at gmail dot com
With the attached program, a call to multiversioned foo selects either the
default or corei7 version, depending on the link order. (Platform is corei7)
Is this expected?
% /rdrive/ref/gcc/bin/g++48 mv12-aux.cc mv12-aux1.cc mv12.C
% ./a.out
foo is 7
% /rdrive/ref/gcc/bin/g++48 mv12.C mv12-aux.cc mv12-aux1.cc
% ./a.out
foo is 0
(The call to foo from different compilation units has different visibility to
which versions are available)
/rdrive/ref/gcc/bin/g++48 -v
Using built-in specs.
COLLECT_GCC=/rdrive/ref/gcc/4.8.0/rhel60/efi2/bin/g++
COLLECT_LTO_WRAPPER=/site/spt/rdrive/ref/gcc/4.8.0/rhel60/efi2/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with:
/rusers/sys_cron/grab_gcc/downloads_rel/4.8.0/gcc-4.8.0/configure
--prefix=/rdrive/ref/gcc/4.8.0/rhel60/efi2
--enable-languages=c,c++,objc,fortran --disable-multilib --enable-bootstrap
--target=x86_64-unknown-linux-gnu --disable-bootstrap --enable-decimal-float
--with-gmp=/rusers/sys_cron/grab_gcc/downloads_rel/lib/efi2
--with-mpfr=/rusers/sys_cron/grab_gcc/downloads_rel/lib/efi2
--with-mpc=/rusers/sys_cron/grab_gcc/downloads_rel/lib/efi2
Thread model: posix
gcc version 4.8.0 (GCC)
