https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60212
Eric Gallager <egallager at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |diagnostic
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-23
CC| |egallager at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
Confirmed that clang warns while g++ doesn't.
$ /usr/local/bin/g++ -fwhole-program -O3 -std=c++11 -Wall -Wextra -Wunused
-pedantic -o 60212.exe 60212.cc
$ /sw/opt/llvm-3.1/bin/clang++ -fwhole-program -O3 -std=c++11 -Wall -Wextra
-Wunused -pedantic -o 60212c.exe 60212.cc
clang-3: warning: argument unused during compilation: '-fwhole-program'
60212.cc:5:7: warning: unused variable 'x' [-Wunused-variable]
S x(a);
^
1 warning generated.
$
