GCC modified for the FreeChainXenon project
04126e46eb
Following Joseph's change for C to allow duplicate C2x standard attributes <https://gcc.gnu.org/pipermail/gcc-patches/2020-October/557272.html>, this patch does a similar thing for C++. This is DR 1914, to be resolved by <wg21.link/p2156>, which is not part of the standard yet, but has wide support so looks like a shoo-in. The duplications now produce warnings instead, but only if the attribute wasn't specified via a macro. gcc/c-family/ChangeLog: DR 1914 * c-common.c (attribute_fallthrough_p): Tweak the warning message. gcc/cp/ChangeLog: DR 1914 * parser.c (cp_parser_check_std_attribute): Return bool. Add a location_t parameter. Return true if the attribute wasn't duplicated. Give a warning instead of an error. Check more attributes. (cp_parser_std_attribute_list): Don't add duplicated attributes to the list. Pass location to cp_parser_check_std_attribute. gcc/testsuite/ChangeLog: DR 1914 * c-c++-common/attr-fallthrough-2.c: Adjust dg-warning. * g++.dg/cpp0x/fallthrough2.C: Likewise. * g++.dg/cpp0x/gen-attrs-60.C: Turn dg-error into dg-warning. * g++.dg/cpp1y/attr-deprecated-2.C: Likewise. * g++.dg/cpp2a/attr-likely2.C: Adjust dg-warning. * g++.dg/cpp2a/nodiscard-once.C: Turn dg-error into dg-warning. * g++.dg/cpp0x/gen-attrs-72.C: New test. |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| lt~obsolete.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| multilib.am | ||
| README | ||
| symlink-tree | ||
| test-driver | ||
| ylwrap | ||
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