[Bug ipa/64163] [5 Regression] r218024 causes qt5 build failure

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64163

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
With the unreduced testcase this issue also happens on x86_64 with gold:

markus@x4 /tmp % g++ -w -shared -fPIC -O2 -fvisibility=hidden -std=c++0x
qmimeglobpattern.ii qmimeprovider.ii
markus@x4 /tmp % g++ -w -shared -fPIC -O3 -fvisibility=hidden -std=c++0x
qmimeglobpattern.ii qmimeprovider.ii
/usr/bin/ld: error: /tmp/ccpdsACp.o: requires dynamic R_X86_64_PC32 reloc
against '_ZN5QListI7QStringED1Ev' which may overflow at runtime; recompile with
-fPIC
/tmp/ccpdsACp.o:qmimeprovider.cpp:function QMimeXMLProvider::ensureLoaded():
warning: relocation refers to discarded section
/tmp/ccpdsACp.o:qmimeprovider.cpp:function
QMimeXMLProvider::listAliases(QString const&): warning: relocation refers to
discarded section
/tmp/ccpdsACp.o:qmimeprovider.cpp:function
QMimeXMLProvider::listAliases(QString const&): warning: relocation refers to
discarded section
/tmp/ccpdsACp.o:qmimeprovider.cpp:function QMimeBinaryProvider::checkCache():
warning: relocation refers to discarded section
/tmp/ccpdsACp.o:qmimeprovider.cpp:function
QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate&): warning:
relocation refers to discarded section
/tmp/ccpdsACp.o:qmimeprovider.cpp:function
QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate&): warning:
relocation refers to discarded section
/tmp/ccpdsACp.o:qmimeprovider.cpp:function
QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate&): warning:
relocation refers to discarded section
collect2: error: ld returned 1 exit status

(ld.bfd is fine:)

markus@x4 /tmp % g++ -w -shared -fPIC -O3 -fvisibility=hidden -std=c++0x
qmimeglobpattern.ii qmimeprovider.ii
markus@x4 /tmp %