Hi gcc-patches mailing list, dkm via Sourceware Forge <[email protected]> has requested that the following forgejo pull request be published on the mailing list.
Created on: 2026-05-28 20:29:27+00:00 Latest update: 2026-05-28 20:29:41+00:00 Changes: 1 changed files, 10 additions, 1 deletions Head revision: dkm/gcc-TEST ref dkm/gccrs_fix commit b44e8937258316e8769b7657f2efb9b491c95625 Base revision: gcc/gcc-TEST ref trunk commit 1bf4a46e9b5c2253afba434895e071ed0e95fc93 r17-918-g1bf4a46e9b5c22 Merge base: 1bf4a46e9b5c2253afba434895e071ed0e95fc93 Full diff url: https://forge.sourceware.org/gcc/gcc-TEST/pulls/162.diff Discussion: https://forge.sourceware.org/gcc/gcc-TEST/pulls/162 Requested Reviewers: cohenarthur Recent change gives: In file included from /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/string:45, from ../../gcc/rust/rust-system.h:34, from ../../gcc/rust/lex/rust-token.cc:19: In static member function 'static constexpr std::char_traits<char>::char_type* std::char_traits<char>::copy(char_type*, const char_type*, std::size_t)', inlined from 'static constexpr void std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_S_copy(_CharT*, const _CharT*, size_type) [with _CharT = char; _Traits = std: :char_traits<char>; _Alloc = std::allocator<char>]' at /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_string.h:4 87:21, inlined from 'static constexpr void std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_S_copy(_CharT*, const _CharT*, size_type) [with _CharT = char; _Traits = std: :char_traits<char>; _Alloc = std::allocator<char>]' at /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_string.h:4 82:7, inlined from 'constexpr void std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_M_mutate(size_type, size_type, const _CharT*, size_type) [with _CharT = char; _Trait s = std::char_traits<char>; _Alloc = std::allocator<char>]' at /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_st ring.tcc:403:15, inlined from 'constexpr std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_M_append(const _CharT*, size_type) [ with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]' at /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc+ +-v3/include/bits/basic_string.tcc:498:17, inlined from 'constexpr std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::append(const _CharT*, size_type) [wit h _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]' at /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc++-v 3/include/bits/basic_string.h:1624:18, inlined from 'constexpr _Str std::__str_concat(const typename _Str::value_type*, typename _Str::size_type, const typename _Str::value_type*, typename _Str::size_type, const typename _Str::allocator_type&) [with _Str = __cxx11::basic_string<char>]' at /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/ include/bits/basic_string.h:3908:19, inlined from 'constexpr std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(const __cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*) [with _CharT = char; _Traits = char_traits<char>; _Alloc = allocator<char>]' at /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bi ts/basic_string.h:3984:31, inlined from 'std::string Rust::Token::as_string() const' at ../../gcc/rust/lex/rust-token.cc:251:45: /gccrs/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/bits/char_traits.h:432:56: error: 'void* __builtin_memcpy(void*, const void* , long unsigned int)' accessing 18446744073709551609 or more bytes at offsets 0 and 0 overlaps 9223372036854775795 bytes at offset -9223372036854775802 [-Werror=restrict] 432 | return static_cast<char_type*>(__builtin_memcpy(__s1, __s2, __n)); | ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ Split the concatenation to avoid the warning. gcc/rust/ChangeLog: PR tree-optimization/114385 * lex/rust-token.cc (Token::as_string): split concatenation. Co-authored-by: Andreas Schwab <[email protected]> Thanks for taking the time to contribute to GCC! Please be advised that https://forge.sourceware.org/ is currently a trial that is being used by the GCC community to experiment with a new workflow based on pull requests. Pull requests sent here may be forgotten or ignored. Patches that you want to propose for inclusion in GCC should use the existing email-based workflow, see https://gcc.gnu.org/contribute.html Changed files: - M: gcc/rust/lex/rust-token.cc Marc Poulhiès (1): gccrs: workaround -Wrestrict false positive [PR114385] gcc/rust/lex/rust-token.cc | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) -- 2.54.0
