test.cc:
class A {
void f();
}
void A::f() {
A::A();
}
g++ -c test.cc
/tmp/cciN3Byt.s: Assembler messages:
/tmp/cciN3Byt.s:18: Warning: missing operand; zero assumed
/tmp/cciN3Byt.s:18: Error: undefined symbol `_ZN1AC1Ev' in operation
/tmp/cciN3Byt.s:18: Error: undefined symbol `INTERNAL' in operation
I have no idea if this is valid, but these error messages are very confusing.
This is GCC 4.5, 20091210 snapshot, plus the patch for PR42251.
g++ -v:
Using built-in specs.
COLLECT_GCC=/usr/x86_64-pc-linux-gnu/gcc-bin/4.5.0-alpha20091210/g++
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.5.0-alpha20091210/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-4.5.0_alpha20091210/work/gcc-4.5-20091210/configure
--prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.5.0-alpha20091210
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.0-alpha20091210/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.5.0-alpha20091210
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.5.0-alpha20091210/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.5.0-alpha20091210/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.0-alpha20091210/include/g++-v4
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec
--disable-fixed-point --without-ppl --without-cloog --enable-nls
--without-included-gettext --with-system-zlib --disable-checking
--disable-werror --enable-secureplt --enable-multilib --enable-libmudflap
--disable-libssp --enable-libgomp
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/4.5.0-alpha20091210/python
--enable-java-awt=gtk --enable-languages=c,c++,java --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
--with-bugurl=http://bugs.gentoo.org/ --with-pkgversion='Gentoo
4.5.0_alpha20091210' --enable-checking
Thread model: posix
gcc version 4.5.0-alpha20091210 20091210 (experimental) (Gentoo
4.5.0_alpha20091210)
--
Summary: Bad assembly generated for constructor call
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: truedfx at gentoo dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42415
