[Bug tree-optimization/58483] missing optimization opportunity for const std::vector compared to std::array

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58483 --- Comment #16 from dennis luehring --- the sample still gets reduced by clang to 160 with -O2 or -O3 clang: main: # @main mov eax, 160 ret and gcc 11.2/trunk producing -O2 main:

[Bug c++/103232] scoped template specalization is not supported (not with C+17 nor C++20)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103232 --- Comment #1 from dennis luehring --- gcc 11.2 https://gcc.godbolt.org/z/jG8f6Phjc clang 7 https://gcc.godbolt.org/z/c4Md5Yh1x

[Bug c++/103232] New: scoped template specalization is not supported (not with C+17 nor C++20)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103232 Bug ID: 103232 Summary: scoped template specalization is not supported (not with C+17 nor C++20) Product: gcc Version: 11.2.0 Status: UNCONFIRMED Severity:

[Bug c++/103186] redefinition of template symbol error with strange error diagnostic

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103186 --- Comment #5 from dennis luehring --- -DTEST=1 compiles under Ubuntu 21.04 with g++ 10.3.0 Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/10/lto-wrapper

[Bug c++/103186] redefinition of template symbol error with strange error diagnostic

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103186 --- Comment #4 from dennis luehring --- (In reply to Andrew Pinski from comment #3) > >gcc -Wall -Wextra -std=c++17 test.cpp -DTEST=2 > > > This is wrong, you should use g++ to link as you need to link against > libstdc++ which gcc does not

[Bug c++/103186] redefinition of template symbol error with strange error diagnostic

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103186 --- Comment #2 from dennis luehring --- Created attachment 51766 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51766=edit s-file output of "gcc -Wall -Wextra -std=c++17 test.cpp -DTEST=1 -save-temps"

[Bug c++/103186] redefinition of template symbol error with strange error diagnostic

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103186 --- Comment #1 from dennis luehring --- Created attachment 51765 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51765=edit ii-file output of "gcc -Wall -Wextra -std=c++17 test.cpp -DTEST=1 -save-temps"

[Bug c++/103186] New: redefinition of template symbol error with strange error diagnostic

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103186 Bug ID: 103186 Summary: redefinition of template symbol error with strange error diagnostic Product: gcc Version: 11.2.0 Status: UNCONFIRMED Severity: normal