https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52869

denin at mail dot ru changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |denin at mail dot ru

--- Comment #6 from denin at mail dot ru ---
Reproduced in 8.1.1:

$ cat nyan.cpp 
struct Nyan {
        constexpr Nyan &operator++() noexcept { return *this; }
        constexpr void omg() noexcept(noexcept(++*this)) {}
};

int main() {}

$ g++ -Wall -Wextra nyan.cpp 
nyan.cpp:3:44: error: invalid use of ‘this’ at top level
  constexpr void omg() noexcept(noexcept(++*this)) {}
                                            ^~~~
$ clang++ nyan.cpp 

$ g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib
--libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info
--with-bugurl=https://bugs.archlinux.org/
--enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared
--enable-threads=posix --enable-libmpx --with-system-zlib --with-isl
--enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu
--disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object
--enable-linker-build-id --enable-lto --enable-plugin
--enable-install-libiberty --with-linker-hash-style=gnu
--enable-gnu-indirect-function --enable-multilib --disable-werror
--enable-checking=release --enable-default-pie --enable-default-ssp
Thread model: posix
gcc version 8.1.1 20180531 (GCC) 

$ uname -a
Linux home 4.17.10-1-ARCH #1 SMP PREEMPT Wed Jul 25 11:23:00 UTC 2018 x86_64
GNU/Linux

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