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• 2026/09/11 [Bug tree-optimization/126595] [14/15/16/17 Regression] Wrong code with loop distribution on SVE and compute_alias_check_pairs jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/115219] [14/15/16/17 Regression] [c++17+] ICE on dependent noexcept class operator delete jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug analyzer/111305] [14/15/16/17 Regression] GCC Static Analyzer -Wanalyzer-out-of-bounds false postive jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/113584] [14/15/16/17 Regression] ICE in unify, at cp/pt.cc:24640 with template specialization on 2 matching template template parameter jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/111750] [14/15/16/17 regression] Spurious -Warray-bounds warning when using member function pointers jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/112867] [14/15/16/17 Regression] extern function declaration inside a generic (templated) lambda inside a template function goes wrong jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/111073] [14/15/16/17 regression] False-positive -Wstringop-overflow when building gdb from trunk with -D_GLIBCXX_ASSERTIONS jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/103724] [13 Regression] invalid warning: iteration 7 invokes undefined behavior jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/127306] [16 Regression] RISC-V bclr_lowest_set_bit pass produces wrong code law at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/107549] [14/15/16/17 Regression] heap-buffer-overflow in xt_true_regnum since r13-3376-g4f3f0296acbb99 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/123398] [14/15/16/17 Regression] ICE: Segmentation fault in tsubst_expr jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/104049] [14/15/16/17 Regression] vec_select to subreg lowering causes superfluous moves jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug go/84948] [14/15/16/17 regression] ICE in set_from, at go/gofrontend/types.cc:2660 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/110370] [14/15/16/17 regression] wrong code on x86_64-linux-gnu with sel-scheduling jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug driver/102437] [14/15/16/17 Regression] gcc-11 and later started recognising -R option jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/106438] [14/15/16/17 regression] powerpc: ICE when building libgfortran with -flto: in insert_value_copy_on_edge, at tree-outof-ssa.cc:334 since r13-1324-g133d0d422ebd18 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/121655] [14/15/16/17 Regression] struct binding as template argument vs reinterpret_cast since r8-4678 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/127323] [17 Regression] ICE in extract_integral_bit_field building povray. rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/57218] [14/15/16/17 Regression] Excessive inlining even at -Os jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/101929] [14/15/16/17 Regression] r12-7319 regress x264_r by 4% on CLX. jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/120078] [14/15 Regression] -Wjump-misses-init should be enabled by -Wc++-compat jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/90291] [14/15/16/17 Regression] Inline namespace erroneously extends another namespace jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/120274] [14/15/16/17 Regression] internal compiler error: in tsubst_expr when trying to call a concept inside a template since GCC 10 using -std=c++20/-fconcepts jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/110896] [14/15/16/17 Regression] gcc.dg/ubsan/pr81981.c is xfailed jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/91355] [14/15/16/17 Regression] optimized code does not call destructor while unwinding after exception jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/95558] [14/15/16/17 Regression] Invalid IPA optimizations based on weak definition jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/91201] [14/15/16/17 Regression] SIMD not generated for horizontal sum of bytes in array jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/102593] [14/15/16/17 Regression] ICE in cp_oacc_check_attachments, at cp/semantics.c:6561 since r10-5596-g519d7496beac32c2 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/127336] wrong code with __atomic_add_fetch() at -O1 and above on x86 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127297] [c++26][contracts] the postcondition const-parameter diagnostic is emitted twice for a non-template function berne at notadragon dot com via Gcc-bugs
• 2026/09/11 [Bug libstdc++/127342] std::system_category().default_error_condition should map Winsock WSAE* error codes to the corresponding errno values on MinGW targets redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/118201] [14/15/16/17 regression] ICE: in maybe_explain_implicit_delete, at cp/method.cc:3143 since r11-1350 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/99332] [14/15/16/17 Regression] ICE:in reset_sched_cycles_in_current_ebb, at sel-sched.c:7147 with -fprofile-generate -O3 -fselective-scheduling -fselective-scheduling2 -fsel-sched-pipelining jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/124270] [14/15/16/17 Regression] constexpr routine into wrong value with -O1 -Wall jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/124502] [14/15/16/17 Regression] Segmentation fault on invalid namespace definition after anonymous inline namespace and enum redeclaration jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/124500] [14/15/16/17 Regression] Segmentation fault on invalid template default argument with enum and sizeof... jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/108367] [13 Regression] ICE: verify_ssa failed (error: definition in block 4 does not dominate use in block 3) since r12-5138-ge82c382971664d6f jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/89976] [14/15/16/17 Regression] missing -Wuninitialized for struct member due to sra and TREE_NO_WARNING/suppress_warning jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/127351] New: internal compiler error: in assign_stack_local_1, at function.cc:429 fcasas at codeweavers dot com via Gcc-bugs
• 2026/09/11 [Bug debug/107231] [13 Regression] c-c++-common/goacc/kernels-loop-g.c: '-fcompare-debug' failure (length) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/121829] [14/15 Regression] Trigger error at -O2/O3 during GIMPLE pass: optimized with asm goto with label being the next statement and loop afterwards jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/65673] [14/15/16/17 Regression] Compound literal with initializer for zero-sized array drops other initializers jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/127350] New: Missed optimization of multiple strcmp (p, c) == 0 for strlen (c) == 1 kaelfandrew at gmail dot com via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/108792] [14/15/16/17 Regression] ICE in reset_sched_cycles_in_current_ebb, at sel-sched.cc:7147 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/106786] [14/15/16/17 Regression] SRA regression causes extra instructions sometimes since r12-1529-gd7deee423f993bee jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/122430] [14/15/16/17 Regression] Call to empty interposable function is optimized away with -flto -fPIC -fsemantic-interposition since r12-5236-g5aa91072e24c1e jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/127256] [16 regression] libjxl build ICEs in simplify_gen_subreg_concatn, at lower-subreg.cc:744 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127339] GCC should allow using builtin type traits in mangled names redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/84050] [14/15/16/17 Regression] missing -Warray-bounds accessing a struct array member jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/110361] [13 Regression] Missed Dead Code Elimination when using __builtin_unreachable since r13-2020-g16b013c9d9b jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/110694] [14/15/16/17 Regression] False Positive -Werror=free-nonheap-object jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/107986] [14/15/16/17 Regression] Bogus -Warray-bounds diagnostic with std::sort jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/107991] [14 Regression] Extra mov instructions with ternary on x86 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/127244] [x86-64] asm "=rm" output operand spilled through stack slot unnecessarily when result is live across a call cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/93808] [14/15/16/17 Regression] [SH] Ruby crashes with 'Illegal Instruction' with -fcrossjumping jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/84318] attribute deprecated on function templates different than class templates jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/108197] [14/15/16/17 Regression] -Wstringop-overread emitted on simple boost small_vector code jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug preprocessor/117977] [14/15/16/17 Regression] duplicated warnings output for _Pragma GCC warning with macros jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/120254] [14/15/16/17 regression] wrong code at -O3 -fwrapv on x86_64-pc-linux-gnu (-floop-interchange) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/26163] [meta-bug] missed optimization in SPEC (2026, 2k17, 2k and 2k6 and 95) rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/111499] [14/15/16/17 Regression] -Wstringop-overread warning in std::vector<uint8_t> less operator< for __builtin_memcmp call jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/121916] [14/15/16/17 Regression] GCC rejects variable/function template declarations of fully qualified-ids with parentheses and -std=c++20 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/111602] [14/15/16/17 Regression] "Error: symbol is already defined" for variable template dependent on default argument lambda of class dependent on local type used in sfinae and non-sfinae contexts jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/118012] [avr][14/15/16/17 Regression] Expensive code (bit extract + extend + neg + and) instead of bit test jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/122163] [14 Regression] Lambda use of rvalue ref not considered an lvalue jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug libstdc++/120384] [14 Regression] _BinaryPredicateConcept checks in std::unique_copy are wrong jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/111655] [14/15/16/17 Regression] wrong code generated for __builtin_signbit and 0./0. on x86-64 -O2 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug analyzer/108400] [14/15 Regression] -Wanalyzer-null-dereference false positive on SoftEtherVPN's src/Cedar/WebUI.c jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/122454] [14/15/16/17 Regression] gcc suboptimal int128 compare jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/123364] [14/15/16/17 Regression] ICE with 2 input operands with constraints of "0" where 0 constraint is "=t" jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/97490] [13/14/15/16/17 Regression] false-positive -Wstringop-overflow= with address sanitizer since r10-5451-gef29b12cfbb4979a migliorelia at gmail dot com via Gcc-bugs
• 2026/09/11 [Bug go/118152] [14/15/16/17 regression] libgo sync/atomic fails since g:8a8a7d332d5d01db5aea7336a36d9fd71a679fb1 on arm jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/118089] [14/15/16/17 regression] arm thumb2 return sequence is suboptimal, especially at -O2 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/114790] [13 Regression] ICE when building intel-compute-runtime (error: direct call to ... speculative call sequence has no speculative flag) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/61577] [14/15/16/17 Regression] can't compile on hp-ux v3 ia64 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/100529] [14/15/16/17 Regression] ICE at -O3: in force_constant_size, at gimplify.c:733 since r11-4494-ga4223abb3deb24e8 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/99987] [14/15/16/17 Regression] missed optimization for dead code elimination at -O3 (vs. -O2) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127349] New: [reflection] wrong lookup of template in spliced namespace mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127349] [reflection] wrong lookup of template in spliced namespace mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/127348] [X86] (a & 1) == 0 not using test + sete pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/90777] [14/15/16/17 Regression] pr84828 testcase ICEs for m32 x86_64,i686-darwin* jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/118867] [14/15/16/17 regression] -Wfree-nonheap-object false positive jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/125306] [14/15/16/17 Regression] ICE when optimizing generic lambda returning nested lambda with dependent parameter pack jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/126095] [14/15/16/17 Regression] ICE in gimplify_var_or_parm_decl, at gimplify.cc:3060 with c++20 ?: since r13-2964 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/127348] New: [X86] (a & 1) == 0 not using test + sete kaelfandrew at gmail dot com via Gcc-bugs
• 2026/09/11 [Bug c/109113] [14/15/16/17 Regression] internal compiler error: in output_constructor_regular_field, at varasm.cc:5521 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/106992] [14/15/16/17 Regression] aarch64: Unexpected maybe-uninitialized warning when compiling fdlibm jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/117468] [14/15/16/17 Regression] arm thumb1 high reg restoration trashes register reserved with -ffixed-reg jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/126463] [15/16/17 Regression] ICE at -O1 on aarch64 during RTL pass: final cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/90663] [14/15/16/17 Regression] strcmp (&a[i], a + i) not folded for arrays and constant index jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/100320] [14/15/16/17 Regression] 32-bit x86 memcpy is suboptimal jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/88443] [meta-bug] bogus/missing -Wstringop-overflow warnings jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/125732] [14/15/16/17 Regression] ICE when using typeid after a custom, invalid definition of std::type_info is provided and bits/exception_ptr.h is included jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/114592] [14/15/16/17 regression] Bogus `maybe-uninitialized` on std::variant with std::string with -O3 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/89270] [13 regression] AVR ICE: verify_gimple failed jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug sanitizer/91707] [14/15/16/17 Regression] spurious stringop-overflow warning with -fsanitize=undefined jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/116601] [14 Regression] during GIMPLE pass: fab ICE: verify_gimple failed: statement marked for throw, but doesn't with -O -fnon-call-exceptions jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/116526] [14/15/16/17 Regression] ICE: in get_partitioning_class, at symtab.cc:2190 with -O -fopenacc -fprofile-generate -flto jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/122135] [14/15/16/17 Regression] accepts redeclaration of default template argument on inner template class definition jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug libfortran/127347] New: [COARRAY] Wrong code at runtime can hang. jvdelisle at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/106514] [14/15/16/17 Regression] ranger slowness in path query jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/83851] [14/15/16/17 regression] gcc.dg/vect/pr53185-2.c fails on armeb after r256634 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/104995] [14/15/16/17 Regression] access checking for function pointer template parameters takes place at call site inside a templated (generic) lambda jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/116833] [14/15/16/17 Regression] Symbian: incorrect configuration for crtfastmath.o jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/105135] [14/15/16/17 Regression] Optimization regression for handrolled branchless assignment since r11-4717-g3e190757fa332d32 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/117440] [14/15/16/17 regression] ICE: in merge, at ipa-modref.cc:2138 at -Os jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/100853] [14/15/16/17 Regression] internal compiler error: in cp_tree_equal, at cp/tree.c:4148 since r11-2275-g5324a3e621d9a2ee jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/94094] [meta-bug] store-merging and/or bswap load/store-merging missed optimizations jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/99959] [14/15 Regression] missing -Wuninitialized for an esra variable with TREE_NO_WARNING jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug libstdc++/127342] New: std::system_category().default_error_condition should map Winsock WSAE* error codes to the corresponding errno values on MinGW targets awsmadi at amazon dot com via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/98563] [14/15/16/17 Regression] vectorization fails while it worked on gcc 9 and earlier since since r10-2271-gd81ab49d0586fca0 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/124677] [13 Regression] ICE on valid code at -O3 with "-fno-tree-copy-prop" on x86_64-linux-gnu: verify_ssa failed jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127276] P3598R0 testcase fails to compile cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/109184] [14/15/16/17 Regression] csmith: 2017 bug with -floop-interchange since r8-5164-gfbdec14e80e9399cd301ed jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/127330] [17 Regression] valgrind "Conditional jump or move depends on uninitialised value(s)" in extract_insn_cached(rtx_insn*) (recog.cc:2782) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug sanitizer/108083] [14/15/16/17 regression] Missed memory leak detection (code with memory leak does not get triggered when I run the executable) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/109431] [14 Regression] ICE in output_constructor_regular_field with static constexpr array inside a template constexpr function since r9-1483-g307193b82cecb8 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug driver/70936] [14/15/16/17 Regression] Hard-coded C++ header paths and relocation problem jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug libstdc++/124121] Missed optimization in initialization of std::inplace_vector with std::initializer_list cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/123465] [14/15/16/17 Regression] ICE in handle_access_attribute after redeclaration error jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127346] New: [16/17 Regression] [modules] "conflicting declaration" when redeclaring an extern "C++" class whose definition is reachable but not visible samuelgardner101 at gmail dot com via Gcc-bugs
• 2026/09/11 [Bug c/23144] [14/15/16/17 Regression] invalid parameter forward declarations not diagnosed jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/102513] [14/15/16/17 Regression] Many false positive warnings with recursive function jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug debug/104277] [meta-bug] gstatement-frontiers issues jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/98028] [14 Regression] __builtin_sub_overflow_p not folded to const when some constraints are known jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/24012] [14/15/16/17 regression] #define _POSIX_C_SOURCE breaks #include <iostream> redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/117108] [14/15/16/17 Regression] internal compiler error: error reporting routines re-entered at build_c_cast(unsigned int, tree_node*, cp_expr) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/93055] [14/15/16/17 Regression] accumulation loops in stepanov_vector benchmark use more instruction level parpallelism jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/94106] [14/15/16/17 Regression] error on a function redeclaration with attribute transaction_safe jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/125962] [14/15/16/17 Regression] ICE on invalid code on x86_64-linux-gnu: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in element_mode, at tree.cc:13731 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/113407] [14 Regression] internal_error with const char* as non-type template parameter with index parameter pack in fold expression jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/127345] [16/17 Regression] wrong code storing a signed _BitInt(N) struct since r16-4708 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127344] [reflection] internal compiler error: in make_typename_type, at cp/decl.cc:5079 mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug libstdc++/127342] std::system_category().default_error_condition should map Winsock WSAE* error codes to the corresponding errno values on MinGW targets redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/127336] wrong code with __atomic_add_fetch() at -O1 and above on x86 ubizjak at gmail dot com via Gcc-bugs
• 2026/09/11 [Bug target/114591] [14/15/16/17 Regression] register allocators introduce an extra load operation since gcc-12 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/100052] [14/15/16/17 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/101974] [14/15/16/17 Regression] ICE on compilable code: in from_mode_char, at attribs.h:304 since r10-4929-g54aa6b58fe2fe73b jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/101630] [13 Regression] ICE with -Wall: in get_constant, at c-family/c-format.c:325 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug libstdc++/127342] std::system_category().default_error_condition should map Winsock WSAE* error codes to the corresponding errno values on MinGW targets awsmadi at amazon dot com via Gcc-bugs
• 2026/09/11 [Bug c++/101990] [14/15/16/17 Regression] ICE after parse error with concepts jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/101995] [14 Regression] regression built-in memset missed-optimization arm -Os since r9-3594 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/114545] [14/15/16/17 Regression] Missed optimization for CSE jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/116032] [14/15/16/17 Regression] gcc.target/arm/pr40457-2.c produces larger code for armv7ve+neon jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/125023] [14/15/16/17 Regression] x86_64: Inconsistent ABI behaviour when passing a structure with a zero-sized multidimensional array by value. jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/116215] [14/15/16/17 regression] -Wstringop-overflow in i386-expand.cc since r12-2132-ga110855667782d jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/115880] [14/15/16/17 regression] GCC 14+ fails to parse CoreFoundation header jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/124673] [14/15/16/17 Regression] ICE: in extract_insn, at recog.cc:2892 (unrecognizable insn) with -mbig-endian and __sync_bool_compare_and_swap() on __int128 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/84652] [14/15/16/17 Regression] internal compiler error: in cp_parser_template_id, at cp/parser.c:15860 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/98800] [14/15/16/17 Regression] ICE on invalid use of non-static member function in trailing return type since r8-2724 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/93554] [14/15/16/17 Regression] ICE in expand_oacc_for, at omp-expand.c:6035 since r6-4364-ge4834818d22f5c66 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/113048] [13 Regression] ICE: in lra_split_hard_reg_for, at lra-assigns.cc:1862 (unable to find a register to spill) {*andndi3_doubleword_bmi} with -march=cascadelake since r13-1716 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug fortran/127208] Teams don't work correctly with -fcoarray=single jvdelisle at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/120396] [14/15/16/17 Regression] unprofitable SLP vectorization, leaves scalar parts live jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/111958] [14/15/16/17 Regression] Line number debugging information indicates wrong file jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127344] [reflection] internal compiler error: in make_typename_type, at cp/decl.cc:5079 mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127344] New: [reflection] internal compiler error: in make_typename_type, at cp/decl.cc:5079 mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/120105] [14/15/16/17 Regression] -Wpadded leads to internal_error jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/127336] wrong code with __atomic_add_fetch() at -O1 and above on x86 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/14179] [14/15/16/17 Regression] out of memory while parsing array with many initializers jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/114858] [14/15/16/17 regression] Compilation Hang and Excessive RAM Consumption in GCC with invalid input since r0-128725 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/123535] [14/15/16/17 Regression] ICE in tsubst_expr, at cp/pt.cc:22369 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/123843] [14/15/16/17 Regression] during GIMPLE pass: forwprop ICE: verify_gimple failed: statement marked for throw, but doesn't with -O -ftrapv -finstrument-functions -fnon-call-exceptions since r12-6577 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/108422] [14/15/16/17 Regression] ICE: base pointer cycle detected since r13-2661-gb57abd072dd319a7 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/108517] [14/15/16/17 Regression] std::sort of empty range yield "warning: 'this' pointer is null" jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/105180] [14/15/16/17 Regression] K&R style definition does not evaluate array size jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/123050] [15/16/17 Regression] RISC-V rv64gcv: miscompile at -O2/O3 Milan.Tripkovic--- via Gcc-bugs
• 2026/09/11 [Bug c++/123812] [14/15/16/17 Regression] Sorry unimplemented: mangling offset_ref rather than a real error message jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/47481] [14/15/16/17 Regression] spill failure with -O2 -msoft-float on Ada RTS jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/102879] [14/15/16/17 Regression] Dead Code Elimination Regression at -O3 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/97108] [14/15/16/17 Regression] -Wmaybe-uninitialized false positive jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/104789] [14/15/16/17 Regression] -Wstringop-overflow false positive at -O3 for an unrolled loop jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/123729] [13 Regression] ICE in verify_ssa: SSA_NAME_OCCURS_IN_ABNORMAL_PHI should be set during GIMPLE pass: vect jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/105771] [14/15/16/17 regression] matrix partial transposition with -O3 since r8-5159-g1cc521f1a824b591 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/104325] [14/15/16/17 Regression] undefined reference to `virtual thunk to ...' since r9-4254-g12485662c00914ed jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug modula2/127204] regression IEEE vs IBM long double pollution seen in builtin tests in testsuite gaius at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c/119991] [14/15/16/17 Regression] internal compiler error: tree check: expected class 'type', have 'exceptional' (error_mark) in create_tmp_from_val, at gimplify.cc:621 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/124691] [14/15/16/17 Regression] ICE in duplicate_decls with friend function redeclaration in class template jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/105834] [13 Regression] Dead Code Elimination Regression at -O2 (trunk vs. 12.1.0) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/123598] [14/15/16/17 Regression] ICE in emit_swap_insn, at reg-stack.cc:850 with -O2 flag jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/119006] [14/15/16 Regression] ICF merging pointer to array types which don't have the same bounds since r11-5181-g0862d007b564ec jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/85099] [meta-bug] selective scheduling issues jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/114788] [14/15/16/17 Regression] ICE on valid code at -O{2,3} on x86_64-linux-gnu (during RTL pass: sched2): in move_exprs_to_boundary, at sel-sched.cc:5236 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/114374] [14/15/16/17 Regression] snprintf Wformat-truncation jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/102027] [14/15/16/17 Regression] ABI break when using vector type in function arg/return value jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/125502] [14 Regression] ICE at -O1 during RTL pass: expand jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/114243] [14/15/16/17 Regression][avr] -fsplit-wide-types bloats code by more than 50% jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127339] GCC should allow using builtin type traits in mangled names nikolasklauser at berlin dot de via Gcc-bugs
• 2026/09/11 [Bug ipa/126268] [14/15/16/17 Regression] internal compiler error: in possible_polymorphic_call_targets with class size over 2^31 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/127339] GCC should allow using builtin type traits in mangled names pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/121230] [14/15 Regression] x86: Inefficient code generation with -m3dnow -msse since GCC 12 since r12-7612 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug ipa/105690] [14/15/16/17 regression] -Warray-bounds sensitive false positive with -O2 since r12-2591-g2e96b5f14e4025691b57d2301d71aa6092ed44bc jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/55004] [meta-bug] constexpr issues jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/120413] [14/15/16/17 Regression] C++ OpenMP 'target' SIGSEGV in 'gcc/cp/semantics.cc:finish_omp_target_clauses_r' jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/18501] [14/15/16/17 Regression] Missing 'used uninitialized' warning (CCP) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug target/95549] [14/15/16/17 regression] gnat1 doesn't link on AIX jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug c++/120012] [14/15/16/17 Regression] P1008R1 causes tail padding reuse in C++20 mode jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug rtl-optimization/87902] [14/15/16/17 Regression] Shrink-wrapping multiple conditions since r9-3594 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug tree-optimization/91954] [14/15/16/17 Regression] gcc.dg/vect/pr66142.c should not need early inlining to be vectorized since r10-3311-gff6686d2e5f797d6 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/11 [Bug middle-end/109990] [14/15/16/17 Regression] Bogus -Wuse-after-free warning after realloc jakub at gcc dot gnu.org via Gcc-bugs

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