http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54278
Travis Gockel <travis at gockelhut dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|unknown |4.7.0
Summary|"control reaches end of |__attribute__((noreturn))
|non-void function |called from destructor when
| |another auto-scoped
| |variable has a non-trivial
| |dtor erroneously fails with
| |"control reaches end of
| |non-void function" at -O0
--- Comment #1 from Travis Gockel <travis at gockelhut dot com> 2012-08-16
00:06:48 UTC ---
Accidentally hit enter...
The key here is that ThingWithDtor is non-trivial -- if you mark
~ThingWithDtor() as =default (or remove the declaration), it will not warn. If
you call a noreturn function directly instead of relying on ~Aborter(), it will
not warn. If both branches of the if create an Aborter, it will not warn.
Everything must be compiled with -Wreturn-type and -O0. This all compiles just
fine with g++ 4.6.3.
---
Using built-in specs.
COLLECT_GCC=g++-4.7
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.7.0-7ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs
--enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.7 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7
--libdir=/usr/lib --enable-nls --disable-bootstrap --with-sysroot=/
--enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes
--enable-gnu-unique-object --enable-plugin --enable-objc-gc --disable-werror
--with-arch-32=i686 --with-tune=generic --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.7.0 (Ubuntu/Linaro 4.7.0-7ubuntu3)
