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• 2026/09/17 [Bug middle-end/127378] widening _BitInt store leaves most significant limb unwritten on PPC64 (big-endian) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127410] SLP node data recording is not idempotent; re-analysis discards the recorded result ptomsich at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127405] [14/15/16 Regression] wrong code at -O3 with a reverse loop over std::vector<struct-of-2-doubles> rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug c++/127395] [17 Regression] ICE on abseil-cpp-20260817: in verify_ctor_sanity, at cp/constexpr.cc:7362 since r17-4199 iains at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127405] [14/15/16/17 Regression] wrong code at -O3 with a reverse loop over std::vector<struct-of-2-doubles> cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127452] [17 Regression] forwprop generates 128bit multiplication even if not supported by the target since r17-3437 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127454] New: false-postive -Wuninitialized warning with -ftrivial-auto-var-init= arnd at linaro dot org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127452] [17 Regression] forwprop generates 128bit multiplication even if not supported by the target since r17-3437 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127452] [17 Regression] forwprop generates 128bit multiplication even if not supported by the target since r17-3437 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127452] [17 Regression] forwprop generates 128bit multiplication even if not supported by the target since r17-3437 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127410] SLP node data recording is not idempotent; re-analysis discards the recorded result rguenther at suse dot de via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127452] [17 Regression] forwprop generates 128bit multiplication even if not supported by the target rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug target/127449] MIPS: R6 forbidden slots not avoided for the purpose of debugging (-Og, etc.) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127405] [14/15/16/17 Regression] wrong code at -O3 with a reverse loop over std::vector<struct-of-2-doubles> rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127452] [17 Regression] forwprop generates 128bit multiplication even if not supported by the target rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127407] [14/15/16/17 Regression] wrong code with store group and negative dependence distance since r6-4137-g90a7a1b5b2c551 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug c++/127453] New: internal compiler error: in declare_module 0599jiangyc at gmail dot com via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127452] New: [17 Regression] forwprop generates 128bit multiplication even if not supported by the target rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug c++/127451] New: internal compiler error: in cp_check_omp_declare_reduction 0599jiangyc at gmail dot com via Gcc-bugs
• 2026/09/17 [Bug c++/127450] New: internal compiler error: in check_noexcept_r 0599jiangyc at gmail dot com via Gcc-bugs
• 2026/09/17 [Bug target/120165] [m68k] gfortran segfaults when built with LRA enabled bernie at codewiz dot org via Gcc-bugs
• 2026/09/17 [Bug target/127432] [17 Regression] 17% slowdown of calculix on aarch64 since r17-4170-g81d25063773b48 rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug fortran/127448] Array pointer assignment doesn't correctly set the span mikael at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug target/127432] [17 Regression] 17% slowdown of calculix on aarch64 since r17-4170-g81d25063773b48 jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug fortran/127448] Array pointer assignment doesn't correctly set the span mikael at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug target/127449] New: MIPS: R6 forbidden slots not avoided for the purpose of debugging (-Og, etc.) macro at orcam dot me.uk via Gcc-bugs
• 2026/09/17 [Bug fortran/127413] Array pointer assignment doesn't correctly set the element length mikael at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug rtl-optimization/127367] [17 Regression] RISC-V: wrong code for unsigned _BitInt(96) % chenzhongyao.hit at gmail dot com via Gcc-bugs
• 2026/09/17 [Bug fortran/127413] Array pointer assignment doesn't correctly set the element length mikael at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug target/120165] [m68k] gfortran segfaults when built with LRA enabled schwab--- via Gcc-bugs
• 2026/09/17 [Bug target/113939] Switch m68k to LRA schwab--- via Gcc-bugs
• 2026/09/17 [Bug target/127441] [M68K] [LRA] wrong code at -Os: va_list argument slot updated with a stale stack offset after push schwab--- via Gcc-bugs
• 2026/09/17 [Bug fortran/127448] New: Array pointer assignment doesn't correctly set the span mikael at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127410] SLP node data recording is not idempotent; re-analysis discards the recorded result ptomsich at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug target/127432] [17 Regression] 17% slowdown of calculix on aarch64 since r17-4170-g81d25063773b48 rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug c++/127434] [14/15/16/17 regression] IPA-SRA introduces unconditional load from conditionally accessed indexing header at -O2 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127407] [14/15/16/17 Regression] wrong code with store group and negative dependence distance since r6-4137-g90a7a1b5b2c551 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug libstdc++/123409] negative_binomial_distribution::param() does not modify member gamma_distribution tkaminsk at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug libstdc++/123409] negative_binomial_distribution::param() does not modify member gamma_distribution cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127447] [15/16/17 Regression] Wrong code issue at -O2 and above from GCC-15.1 to 17.0 (trunk) versions since r15-6173 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug libgomp/125691] ICE when parsing malformed #pragma omp simd loop with missing for parentheses burnus at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug target/127191] arc: gcc.c-torture/execute/pr68185.c fails since GCC 16 for ARC60x and ARC700 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug target/126243] arc: vectorization emits incorrect scalar ops cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127447] [15/16/17 Regression] Wrong code issue at -O2 and above from GCC-15.1 to 17.0 (trunk) versions since r15-6173 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug middle-end/127213] [OpenMP] 'requires self_map/USM' leads to wrong code burnus at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug c++/127439] [17 regression] ICE building clang-23.1.1: unexpected expression ‘(const llvm::StringRef)"algorithm"’ of kind implicit_conv_expr since r17-4199 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127447] [15/16/17 Regression] Wrong code issue at -O2 and above from GCC-15.1 to 17.0 (trunk) versions since r15-6173 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug target/127445] [17 Regression] ICE: in df_refs_verify, at df-scan.cc:4012 with -Os -finstrument-functions-once -fzero-call-used-regs=all-gpr-arg ktkachov at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127447] [15/16/17 Regression] Wrong code issue at -O2 and above from GCC-15.1 to 17.0 (trunk) versions since r15-6173 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug rtl-optimization/127443] [17 Regression] ICE: in simplify_subreg_concatn, at lower-subreg.cc:678 with -O -g rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127405] [14/15/16/17 Regression] wrong code at -O3 with a reverse loop over std::vector<struct-of-2-doubles> rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug rtl-optimization/127438] [17 Regression] ICE: maximum number of LRA assignment passes is achieved (30) with -fvpt -fprofile-arcs -fharden-compares rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug middle-end/127446] [17 Regression] small 3% performance regression for perl around August 19th rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127444] `x sCMP -x` should be simplified into x sCMP 0 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/127447] New: Wrong code issue at -O2 and above from GCC-15.1 to 17.0 (trunk) versions haoxintu at gmail dot com via Gcc-bugs
• 2026/09/17 [Bug tree-optimization/126332] -ftracer makes it harder to do ifcvt (like path splitting) rguenther at suse dot de via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127447] [15/16/17 Regression] Wrong code issue at -O2 and above from GCC-15.1 to 17.0 (trunk) versions pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127447] [15/16/17 Regression] Wrong code issue at -O2 and above from GCC-15.1 to 17.0 (trunk) versions pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127433] wrong aligned info with mutual alignment peeling caused segfault linkw at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127439] [17 regression] ICE building clang-23.1.1: unexpected expression ‘(const llvm::StringRef)"algorithm"’ of kind implicit_conv_expr ted.d.rodgers at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug lto/126841] [LTO] -ffunction-sections can emit multiple distinct functions into one native section luolongjuna at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug middle-end/127446] New: [17 Regression] small 3% performance regression for perl around August 19th pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug lto/126841] [LTO] -ffunction-sections can emit multiple distinct functions into one native section cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127445] [17 Regression] ICE: in df_refs_verify, at df-scan.cc:4012 with -Os -finstrument-functions-once -fzero-call-used-regs=all-gpr-arg pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127445] New: [17 Regression] ICE: in df_refs_verify, at df-scan.cc:4012 with -Os -finstrument-functions-once -fzero-call-used-regs=all-gpr-arg zsojka at seznam dot cz via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127443] [17 Regression] ICE: in simplify_subreg_concatn, at lower-subreg.cc:678 with -O -g pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127442] [14 Regression] RISC‑V: auto-vectorization emits illegal vsetivli e32,mf2 for Zve32f target pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127444] New: `x sCMP -x` should be simplified into x sCMP 0 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127443] New: [17 Regression] ICE: in simplify_subreg_concatn, at lower-subreg.cc:678 with -O -g zsojka at seznam dot cz via Gcc-bugs
• 2026/09/16 [Bug c/127442] New: [14 Regression] RISC‑V: auto-vectorization emits illegal vsetivli e32,mf2 for Zve32f target bigmagicreadsun at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug c/127441] New: [M68K] [LRA] wrong code at -Os: va_list argument slot updated with a stale stack offset after push bernie at codewiz dot org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127440] cond_store_replacement_limited should support diamond shapped bb pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127440] New: cond_store_replacement_limited should support diamond shapped bb pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/126195] [15 Regression] 737.gmsh_r validation error with "-O3 -march=native" haochen.jiang at intel dot com via Gcc-bugs
• 2026/09/16 [Bug cobol/127412] error: iconv_open: cannot convert to 'CP1140' from 'CP1252' kargl at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/113381] FAIL: g++.dg/cpp2a/consteval-prop6.C -std=c++20 at line 58 (test for warnings, line 57) danglin at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug cobol/127412] error: iconv_open: cannot convert to 'CP1140' from 'CP1252' kargl at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127103] code from std::vector::push_back can be optimized away pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug middle-end/118130] std::vector code quality issues pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127103] code from std::vector::push_back can be optimized away cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127356] Need a version of overflow_free_p which does not assume TYPE_OVERFLOW_UNDEFINED cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127103] code from std::vector::push_back can be optimized away cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug modula2/126174] Documentation generation produces warnings when generating gm2.info gaius at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug modula2/126174] Documentation generation produces warnings when generating gm2.info cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127439] [17 regression] ICE building clang-23.1.1: unexpected expression ‘(const llvm::StringRef)"algorithm"’ of kind implicit_conv_expr sjames at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/126195] [15 Regression] 737.gmsh_r validation error with "-O3 -march=native" madhavmj at yahoo dot com via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/126332] -ftracer makes it harder to do ifcvt (like path splitting) pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127433] wrong aligned info with mutual alignment peeling caused segfault pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127433] wrong aligned info with mutual alignment peeling caused segfault pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127439] New: ICE with ted.d.rodgers at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug c++/127371] [modules][reflection] ICE in walk_namespace_bindings when namespaces are supplied via partitions w15developer at proton dot me via Gcc-bugs
• 2026/09/16 [Bug c++/127371] [modules][reflection] ICE in walk_namespace_bindings when namespaces are supplied via partitions w15developer at proton dot me via Gcc-bugs
• 2026/09/16 [Bug c/127383] [C23 _BitInt] wrong code for complement of unsigned _BitInt(63) converted to unsigned long long cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127371] [modules][reflection] ICE in walk_namespace_bindings when namespaces are supplied via partitions w15developer at proton dot me via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127438] New: [17 Regression] ICE: maximum number of LRA assignment passes is achieved (30) with -fvpt -fprofile-arcs -fharden-compares zsojka at seznam dot cz via Gcc-bugs
• 2026/09/16 [Bug c++/127395] [17 Regression] ICE on abseil-cpp-20260817: in verify_ctor_sanity, at cp/constexpr.cc:7362 since r17-4199 iains at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127395] [17 Regression] ICE on abseil-cpp-20260817: in verify_ctor_sanity, at cp/constexpr.cc:7362 since r17-4199 iains at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127430] Wrong preprocessor guard at libstdc++-v3/config/io/basic_file_stdio.cc cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/117154] Aggregate initialization with protected destructor in Base class: GCC vs Clang difference carlosgalvezp at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127130] [14/15/16 Regression] wrong code at -O{2,3} on x86_64-linux-gnu cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug cobol/126633] cobol1: FR add STORED-CHAR-LENGTH function (available at least in Fujitsu and GnuCOBOL) simonsobisch at gnu dot org via Gcc-bugs
• 2026/09/16 [Bug c++/127395] [17 Regression] ICE on abseil-cpp-20260817: in verify_ctor_sanity, at cp/constexpr.cc:7362 since r17-4199 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127437] ICE when compiling static constexpr class member in folly v2024.06.24.00 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127437] New: ICE when compiling static constexpr class member in folly v2024.06.24.00 emcdonou at qti dot qualcomm.com via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127424] 27_io testsuite: opening a FIFO with O_RDWR is undefined in POSIX; 9964.cc also stopped testing PR 9964 in 2004 gokbeykeskin at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127430] Wrong preprocessor guard at libstdc++-v3/config/io/basic_file_stdio.cc cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 Worth a website update? Jackson Michael via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127049] [15/16 Regression] -O2 auto-vectorizer emits aligned movaps to unaligned address -> SIGSEGV cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug modula2/127359] building modula2 support requires bash installed in path cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127431] struct field default = address of label can cause assembly with reference to undefined local label pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127431] struct field default = address of label can cause assembly with reference to undefined local label pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug modula2/127359] building modula2 support requires bash installed in path ro at CeBiTec dot Uni-Bielefeld.DE via Gcc-bugs
• 2026/09/16 [Bug c++/127434] [14/15/16/17 regression] IPA-SRA introduces unconditional load from conditionally accessed indexing header at -O2 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127422] [16/17 Regression] -fcompare-debug failure in combine when a DEBUG_INSN retains a volatile MEM since r16-5947 yqtian668 at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/126760] [16 Regression] Wrong code at -O2 on x86_64-pc-linux-gnu since r16-6679 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127425] testsuite: __gnu_test::semaphore exits 0 when SysV semaphores are unavailable, so 10 tests report PASS without executing redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127432] [17 Regression] 17% slowdown of calculix on aarch64 since r17-4170-g81d25063773b48 rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127424] 27_io testsuite: opening a FIFO with O_RDWR is undefined in POSIX; 9964.cc also stopped testing PR 9964 in 2004 redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127434] [14/15/16/17 regression] IPA-SRA introduces unconditional load from conditionally accessed indexing header at -O2 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c/127436] ICE: Segmentation fault on store_expr pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug cobol/126611] cobol1: COBOL-WORDS directive broken (and possibly reserved words leaking into preprocessor-reserved words) simonsobisch at gnu dot org via Gcc-bugs
• 2026/09/16 [Bug c/127436] New: ICE: Segmentation fault on store_expr kyuwoncho18 at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/125945] factor_out_conditional_load could use better heurstic for pre-vectorization pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127424] 27_io testsuite: opening a FIFO with O_RDWR is undefined in POSIX; 9964.cc also stopped testing PR 9964 in 2004 redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127429] 4% slowdown of calculix on aarch64 since r17-4214-ga426e0a8c5ee9c rguenther at suse dot de via Gcc-bugs
• 2026/09/16 [Bug fortran/125690] [PDT] ice in wide_int_to_tree_1, at tree.cc:1900 pault at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug fortran/127413] Array pointer assignment doesn't correctly set the element length mikael at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127432] [17 Regression] 17% slowdown of calculix on aarch64 since r17-4170-g81d25063773b48 rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/126760] [16 Regression] Wrong code at -O2 on x86_64-pc-linux-gnu since r16-6679 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127432] [17 Regression] 17% slowdown of calculix on aarch64 since r17-4170-g81d25063773b48 rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127403] Internally surrounding a statement expression with #pragma's erroneously voids it in C++ mode redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127429] 4% slowdown of calculix on aarch64 since r17-4214-ga426e0a8c5ee9c jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug jit/127435] New: jit.dg/test-sized-float.c fails to compile on some targets due to unconditional use of __float128 dmalcolm at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127434] [14/15/16/17 regression] IPA-SRA introduces unconditional load from conditionally accessed indexing header at -O2 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127433] wrong aligned info with mutual alignment peeling caused segfault rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/101179] y % (x ? 16 : 4) and y % (4 << (2 * (bool)x)) produce different code daniel.barboza at oss dot qualcomm.com via Gcc-bugs
• 2026/09/16 [Bug c++/127434] [14/15/16/17 regression] IPA-SRA introduces unconditional load from conditionally accessed indexing header at -O2 sjames at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/101179] y % (x ? 16 : 4) and y % (4 << (2 * (bool)x)) produce different code daniel.barboza at oss dot qualcomm.com via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/126658] [16 Regression] Wrong code at -O1 on x86_64-pc-linux-gnu cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127390] [15/16 Regression] wrong code vectorizing signed _BitInt(24) comparison at -O3 (early exit) cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127423] [RISC-V] -fcompare-debug failure in noce_get_alt_condition when a DEBUG_INSN overlaps if_info->x yqtian668 at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug c++/127434] New: 13/14/15/16/17] IPA-SRA introduces unconditional load from conditionally accessed indexing header at -O2 clopez at igalia dot com via Gcc-bugs
• 2026/09/16 [Bug middle-end/127273] [OpenMP] with 'link' clause, ICE (segfault) in ipa_reference_var_uid / symtab_node::ultimate_alias_target cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug fortran/127233] ASSOCIATED ignores element length mikael at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug middle-end/126153] [14/15/16 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug middle-end/126153] [14/15/16 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug middle-end/126153] [14/15/16 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127431] struct field default = address of label can cause assembly with reference to undefined local label rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127433] New: wrong aligned info with mutual alignment peeling caused segfault linkw at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/125848] [C++26] P3769R1, Clarification of placement new deallocation jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/126658] [16 Regression] Wrong code at -O1 on x86_64-pc-linux-gnu rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127421] [SPARC] -fcompare-debug failure because DEBUG_INSNs consume redundant_insn search budget - yqtian668 at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127391] [16 Regression] Wrong code at -O3 on x86_64-pc-linux-gnu rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127377] [13/14/16 Regression] Wrong code at -O3 on x86_64-pc-linux-gnu cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127262] [14/15/16 Regression] ICE at -O1 -Wall cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127000] [14/15/16 Regression] ICE at -O2 during GIMPLE pass: fre cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127391] [16 Regression] Wrong code at -O3 on x86_64-pc-linux-gnu cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127432] [17 Regression] 17% slowdown of calculix on aarch64 since r17-4170-g81d25063773b48 jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127000] [14/15/16 Regression] ICE at -O2 during GIMPLE pass: fre cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/88259] vectorization failure for a typical loop for getting max value and index konstantinos.eleftheriou at vrull dot eu via Gcc-bugs
• 2026/09/16 [Bug target/127432] New: [17 Regression] 17% slowdown of calculix on aarch64 since r17-4170-g81d25063773b48 jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug modula2/127359] building modula2 support requires bash installed in path gaius at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127035] [17 Regression] 25% slowdown of imagick_r on Zen2 since r17-3484-g89f8552e424c43 jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127426] New: [C++23] ICE in dependent_type_p with concept lambda and std::generator zhenyefan at 163 dot com via Gcc-bugs
• 2026/09/16 [Bug target/122535] PowerPC: --with-long-double-64 ignored during configure cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127424] 27_io testsuite: opening a FIFO with O_RDWR is undefined in POSIX; 9964.cc also stopped testing PR 9964 in 2004 redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c/122050] statement expressions with an empty expression at the end have different behavior between C and C++ foss+gcc--- via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127382] [16/17 Regression] ICE in range_of_cond_expr during vectorization with _BitInt jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127430] Wrong preprocessor guard at libstdc++-v3/config/io/basic_file_stdio.cc redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug gcov-profile/127427] New: GCC is too quick to reject reflecting types that involves names introduced by using-declarations programmer00001h at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127425] testsuite: __gnu_test::semaphore exits 0 when SysV semaphores are unavailable, so 10 tests report PASS without executing redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug c++/127431] New: struct field default = address of label can cause assembly with reference to undefined local label alanas.00 at mail dot ru via Gcc-bugs
• 2026/09/16 [Bug middle-end/26163] [meta-bug] missed optimization in SPEC (2026, 2k17, 2k and 2k6 and 95) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127429] 4% slowdown of calculix on aarch64 since r17-4214-ga426e0a8c5ee9c rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127382] [16/17 Regression] ICE in range_of_cond_expr during vectorization with _BitInt jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127430] New: Wrong preprocessor guard at libstdc++-v3/config/io/basic_file_stdio.cc gokbeykeskin at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug target/127429] New: 4% slowdown of calculix on aarch64 since r17-4214-ga426e0a8c5ee9c jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127382] [16/17 Regression] ICE in range_of_cond_expr during vectorization with _BitInt rguenther at suse dot de via Gcc-bugs
• 2026/09/16 [Bug c++/127428] New: [C++26] ICE (segfault) in poplevel (decl.cc:783) with lambda in contract precondition and deducing-this template vincent.liu at arista dot com via Gcc-bugs
• 2026/09/16 [Bug bootstrap/127376] [17 Regression] boostrap-lto fails with a compare error pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug bootstrap/127376] [17 Regression] boostrap-lto fails with a compare error rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127382] [16/17 Regression] ICE in range_of_cond_expr during vectorization with _BitInt jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127420] Emit UD2 after indirect jump liuhongt at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug bootstrap/127376] [17 Regression] boostrap-lto fails with a compare error pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127382] [16/17 Regression] ICE in range_of_cond_expr during vectorization with _BitInt jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug bootstrap/127376] [17 Regression] boostrap-lto fails with a compare error ktkachov at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127422] [16/17 Regression] -fcompare-debug failure in combine when a DEBUG_INSN retains a volatile MEM since r16-5947 hjl.tools at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127382] [16/17 Regression] ICE in range_of_cond_expr during vectorization with _BitInt rguenther at suse dot de via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127382] [16/17 Regression] ICE in range_of_cond_expr during vectorization with _BitInt jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127382] [16/17 Regression] ICE in range_of_cond_expr during vectorization with _BitInt rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127420] Emit UD2 after indirect jump hjl.tools at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug testsuite/127418] [16/17] vect: failing tests with --with-arch=x86-64-v3 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127410] SLP node data recording is not idempotent; re-analysis discards the recorded result ptomsich at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127420] Emit UD2 after indirect jump hjl.tools at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug c++/127424] New: 27_io testsuite: opening a FIFO with O_RDWR is undefined in POSIX; 9964.cc also stopped testing PR 9964 in 2004 gokbeykeskin at gmail dot com via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127422] [16/17 Regression] -fcompare-debug failure in combine when a DEBUG_INSN retains a volatile MEM since r16-5947 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug rtl-optimization/127421] [SPARC] -fcompare-debug failure because DEBUG_INSNs consume redundant_insn search budget - rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug target/127420] Emit UD2 after indirect jump rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug tree-optimization/127410] SLP node data recording is not idempotent; re-analysis discards the recorded result rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/16 [Bug libstdc++/127425] New: estsuite: __gnu_test::semaphore exits 0 when SysV semaphores are unavailable, so 10 tests report PASS without executing gokbeykeskin at gmail dot com via Gcc-bugs

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