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• 2026/04/30 [Bug target/123102] [13/14/15 Regression] [ARM] Different runtime with -O1 for csmith code cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/124957] [15/16/17 Regression] [modules] mismatching abi tags for ‘...’ with no tags ppalka at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/125112] New: Missing freestanding header: bits/binders.h felix.morgner at gmail dot com via Gcc-bugs
• 2026/04/30 [Bug target/59968] Unused BT patterns b.buschinski at googlemail dot com via Gcc-bugs
• 2026/04/30 [Bug libstdc++/123165] Optimize chrono::__detail::__get_leap_second_info redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/110339] Implement C++26 library features redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/119794] [C++26] P2075R6 Philox Engine redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/120029] Dangling iterator usage in std::filesystem::path::operator+=(const std::filesystem::path &p) when this == p redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/120029] Dangling iterator usage in std::filesystem::path::operator+=(const std::filesystem::path &p) when this == p redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/125079] [13/14/15/16/17 Regression] tree-ssa-strlen get_string_length: __strcat_chk -> __stpcpy_chk drops bound subtract jakub at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/118665] std::uniform_int_distribution infinite loop with generator returning 0 redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/118260] Automatically add some 'skip's from gdb helper code redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/125111] New: [reflection] "internal compiler error: error reporting routines re-entered" when calling`std::meta::extract` with reference to function ensadc at mailnesia dot com via Gcc-bugs
• 2026/04/30 [Bug target/124933] [13/14 regression] Error: selected processor does not support `vld1.16 {d7[2]},[r5]' in Thumb mode rearnsha at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124933] [13/14 regression] Error: selected processor does not support `vld1.16 {d7[2]},[r5]' in Thumb mode cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/125110] New: miniBUDE NVIDIA GPU OpenMP offloading performance vs. 'omp_max_simt_vf' tschwinge at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/125109] AMD GPU offloading performance pessimized if also compiling for NVIDIA GPU offloading jakub at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/125109] AMD GPU offloading performance pessimized if also compiling for NVIDIA GPU offloading ams at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/125109] AMD GPU offloading performance pessimized if also compiling for NVIDIA GPU offloading rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124142] [14/15 Regression] Bad early-break vectorization of loop with integer modulo jchrist at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/125109] New: AMD GPU offloading performance pessimized if also compiling for NVIDIA GPU offloading tschwinge at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/125039] [14/15 regression] internal compiler error: in lower_bound, at value-range.h:636 since r14-4153 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124133] [14/15 Regression] ICE in decompose, at wide-int.h:1049 on powerpc64le-linux-gnu since r14-4793 jakub at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/123635] _BitInt bitint_extended vs. abi_limb_prec > limb_prec or even just bitint_extended jakub at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/120763] [meta-bug] Tracker for bugs to visit during weekly RISC-V meeting jakub at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124988] wrong code with __builtin_mul_overflow() and shift of _BitInt() on riscv jakub at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/125024] [reflection] `std::is_scalar_v<std::meta::info>` incorrectly yields `false` cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/123635] _BitInt bitint_extended vs. abi_limb_prec > limb_prec or even just bitint_extended cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/125039] [14/15/16 regression] internal compiler error: in lower_bound, at value-range.h:636 since r14-4153 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124988] wrong code with __builtin_mul_overflow() and shift of _BitInt() on riscv cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124133] [14/15/16 Regression] ICE in decompose, at wide-int.h:1049 on powerpc64le-linux-gnu since r14-4793 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/123635] _BitInt bitint_extended vs. abi_limb_prec > limb_prec or even just bitint_extended cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124988] wrong code with __builtin_mul_overflow() and shift of _BitInt() on riscv cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ada/125044] task returned by function whose result type is class-wide not activated ebotcazou at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125057] LoongArch LASX: GCC 16 ICE in RTL split2 with __lasx_cast_128(__lsx_vld(...)) followed by __lasx_vext2xv_* chenglulu at loongson dot cn via Gcc-bugs
• 2026/04/30 [Bug ada/125044] task returned by function whose result type is class-wide not activated cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ada/125044] task returned by function whose result type is class-wide not activated cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ada/125044] task returned by function whose result type is class-wide not activated cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125107] [17 Regression] 6-7% slowdown of milc on Zen2 since r17-142-g91cc9b3402bb33 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125106] [17 Regression] 5% slowdown of milc on Zen2 with PGO since r17-140-gf8d911e6ae3fc1 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/125105] -fno-signed-zeros and -ffinite-math-only generates sqrt() function call rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ada/125044] task returned by function whose result type is class-wide not activated cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/125108] New: [reflection] template_arguments_of gives underlying entity of alias template jolly.j.chen at gmail dot com via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/125104] `(a & ~CST) ^ CST` -> `a | CST` rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/125088] [17 Regression] [Coverity] gcc/tree-vect-slp.cc: 9480: UNEXPECTED_CONTROL_FLOW rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/125088] [17 Regression] [Coverity] gcc/tree-vect-slp.cc: 9480: UNEXPECTED_CONTROL_FLOW cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/102181] [DR 3197] std::advance and std::views::iota<std::int64_t> don't work redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/115402] std::atomic_ref<volatile T> compile-error in compare_exchange_[weak/strong]() and wait() redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/122289] std::tuple allocator-extended constructors should use std::make_obj_using_allocator for each element redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/99552] FAIL: 29_atomics/atomic/wait_notify/bool.cc (test for excess errors) redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/111589] Use relaxed atomic increment (but not decrement!) in shared_ptr redi at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125107] [17 Regression] 6-7% slowdown of milc on Zen2 since r17-142-g91cc9b3402bb33 jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125107] New: [17 Regression] 6-7% slowdown of milc on Zen2 since r17-142-g91cc9b3402bb33 jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124933] [13/14 regression] Error: selected processor does not support `vld1.16 {d7[2]},[r5]' in Thumb mode cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125106] [17 Regression] 5% slowdown of milc on Zen2 with PGO since r17-140-gf8d911e6ae3fc1 jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125106] New: [17 Regression] 5% slowdown of milc on Zen2 with PGO since r17-140-gf8d911e6ae3fc1 jmelcr at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/125105] New: -fno-signed-zeros and -ffinite-math-only generates sqrt() function call manu at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/120375] [14/15 Regression] arc: -mcpu=em x >> 31 clobber of CC isn't respected michiel at derhaeg dot be via Gcc-bugs
• 2026/04/30 [Bug cobol/124626] [16/17 Regression] Cobol build fails on *-*-darwin* rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124619] [16/17 Regression] FAIL/XPASS: g++.dg/warn/Wstringop-overflow-3.C test for warnings rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug plugins/124400] [16/17 regression] gcc.dg/plugin/cpython-plugin-test-PyList_Append.c etc. FAIL rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rust/124013] [16/17 regression] -Wodr issues in Rust rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug fortran/123938] [16 Regression] Memory leak on assignment rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/123713] [16/17 Regression] ICE in composite_type_cond with ms_abi and old style function declaration rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ipa/123459] [16/17 Regression] speculative devirtualization and always_inline doesn't play nice together rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/123199] [15/16/17 regression] gcc.dg/vect/vect-86.c FAILs rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/123196] [16/17 regression] gcc.dg/vect/vect-105.c FAILs rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/123159] [16/17 Regression] building insn-extract.cc from an aarch64-linux-gnu cross compiler fails on x86_64-linux-gnux32 with out of memory rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/123070] [16/17 Regression] pr90178.c -m32 starts to fail since r16-5975 (make_forwarders_with_degenerate_phis ) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/123051] [16/17 Regression] 25-30% slowdown of 470.lbm on Zen5 since r16-5902-g1da0e5c1405e87 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125026] [17 regression] ICE on valid code at -O{2,3} on x86_64-linux-gnu: in extract_insn, at recog.cc:2892 hjl.tools at gmail dot com via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124609] [16/17 Regression] 5-8% slowdown of mcf on x86 since r16-8128-g5f1024922d3f67 with PGO rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/122660] [16/17 Regression] uninit predicated analysis not strong enough (derived from uninit-pred-7_a.c) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug testsuite/124329] [16/17 regression] c-c++-common/analyzer/flex-without-call-summaries.c XPASSes rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/110339] Implement C++26 library features tkaminsk at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124133] [14/15/16 Regression] ICE in decompose, at wide-int.h:1049 on powerpc64le-linux-gnu since r14-4793 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125100] CONST_VECTOR in REG_EQUAL note isn't checked hjl.tools at gmail dot com via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/122585] [16/17 Regression] 4-5% slowdown of 433.milc on AMD zen4 since r16-4469-gd6986e06db5eeb rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124127] [16/17 Regression] 9% slowdown of 503.bwaves_r on Zen3 since r16-1644-gaba3b9d3a48a07 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/122557] [16/17 regression] FAIL: 29_atomics/atomic_ref/op_support.cc & requirements.cc on power32 starting with - r16-4349-g90dde804626f13 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124963] [16/17 Regression] 4-5% slowdown of xalancbmk_r on Zen4 with PGO since r16-8697-g4a3ad71a20b62c rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/123524] [16/17 Regression] 6% performance regression in gcc-16 compared to gcc-15 when compiling an interpreter rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug jit/125047] [16/17 regression] ICE in get_int_type, at jit/jit-recording.cc:838 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125102] *mov<mode>_imm doesn't take TARGET_LCP_STALL into account hjl.tools at gmail dot com via Gcc-bugs
• 2026/04/30 [Bug cobol/122466] [16/17 regression] Cobol-enabled bootstrap fails for Darwin after addition of the posix support to libgcobol rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/124799] [16/17 regression] tr1/8_c_compatibility/complex/overloads_int.cc FAILs rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124408] [16/17 Regression] 4% slowdown of exchange2_r on Intel Ice Lake rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/123327] [16/17 Regression] 4% slowdown of perlbench on Zen5 since r16-6232-gb2b5ccb0a2450a rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug bootstrap/124839] [16/17 Regression] powerpc64le-unknown-linux-gnu bootstrap failure: 'rust/rust-token.o' rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/125032] [17 Regression] ICE on pixman-0.46.4 (-mmmx) since r17-33-g5df64ae7fe7904 hjl.tools at gmail dot com via Gcc-bugs
• 2026/04/30 [Bug c++/122268] [16/17 Regression][OpenMP][offload:gcn/nvptx lto1] ICE (during RTL pass: expand) in assign_temp, at function.cc:990 for libgomp.c++/target-flex-101.C (c++/16.0.0/flat_map:185:1) since r16-4212-gf256a13f8aed83 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug analyzer/123145] [16/17 Regression] -fanalyzer on qemu-7.2.0/build/target_hexagon_decode.c takes a very long time after r16-6063-g0b786d961d4426 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124142] [14/15 Regression] Bad early-break vectorization of loop with integer modulo rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/124745] [16/17 Regression]ICE in decl_mismatch_context on mismatched constrained friend declaration rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ipa/122058] [16/17 regression] ICU miscompiled with -O2 -flto -fno-semantic-interposition since r16-4000-g9ee937b2f92a93 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/124290] 23_containers/mdspan/submdspan tests time out tkaminsk at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug gcov-profile/123126] [16/17 Regression] 6-10% slowdown of xalancbmk_r on Zen{4,5} since r16-6104-gb5c64db0a49d46 with PGO rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug analyzer/123770] [16/17 Regression] Memory bloat seen when running -fanalyzer integration tests rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/123754] [16/17 Regression] ICE: in store_integral_bit_field, at expmed.cc:1069 with -O2 -favoid-store-forwarding -mbig-endian rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/121447] [16/17 Regression] ~20% slowdown of 470.lbm since r16-1644-gaba3b9d3a48a07 on AMD Zen5 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/124480] [16/17 regression] g++.dg/modules/pr99023_b.X FAILs rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug cobol/123764] [16/17 regression] cobol: regression in PICTURE handling rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/123047] [16/17 Regression] 17% slowdown of 436.cactusADM on Aarch64 with PGO rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/123536] [16/17 Regression] ICE in mark_use with lambda reference to a global without captures inside a template rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/121037] [16/17 Regression] 4-6% slowdown of 482.sphinx3 since r16-2088-ge9079e4f43d135 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/124318] [16/17 Regression] nvptx vs. "ipa-devirt: Add speculative direct calls based on stores to structures" rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/122913] [16/17 Regression] pr12392.cpp -Ofast compile time went up 15% due to switching to -std=gnu++20 by default rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/123239] [16/17 Regression] 4% slowdown of imagick_r on Aarch64 with PGO rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/120996] [16/17 regression][AArch64] 15% regression in microBUDE since r16-1108-gb7960a3f966a0f rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124113] [16/17 Regression] 6% slowdown of sphinx3 on Zen5 since r16-7359-gae04c1afd1526a rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c/123473] [16/17 Regression] ICE in expand_expr_real_1 with array in struct with bounds of `*` rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c/122595] [16/17 Regression] FAIL: gcc.dg/pr97986-1.c starting with - r16-4919-g5175ef7f7577a1 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/123190] [16/17 Regression] 8% slowdown of 433.milc on AMD zen4 since r16-5275-ga645e903e8c394 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c/123467] [16/17 Regression] ICE in force_constant_size with VLA initialized in function type definition rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/120870] [16/17 regression] CPython miscompiled with preserve_none and CFLAGS="-O2 -march=znver2 -ggdb3" rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug algol68/123785] [16/17 Regression] algol68 ftbfs on alpha-linux-gnu rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/122581] [16/17 Regression] nvptx 'g++.dg/other/pr104989.C' vs. 'c++: C++26 va_start - part of P3348R4 - C++26 should refer to C23 not C17' rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/122979] [16/17 Regression] wrong code at -O3 on x86_64-linux-gnu since r16-4186 (latent) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/120218] [16/17 Regression] 8% slowdown of 507.cactuBSSN_r on Intel rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/123266] [16/17 Regression] Recent change exposes failure to optimize in VRP/DOM and code quality regression rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/122757] [16/17 Regression] Copy prop for aggregates into calls makes worse code for constants in some cases (12 bytes) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/122197] [16/17 Regression] predictively devirtualization vs middle-end warnings since r16-4000 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/122586] [16/17 Regression] 4-5% slowdown of 538.imagick_r on Intel Ice Lake (3rd generation Xeon) by r16-4576-gfe9f0719d8ebd2 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/122777] [16/17 Regression] 5-8% slowdown of 454.calculix (PGO) and 548.exchange2_r (non-pgo) on AMD Zen{4,5} since r16-5258-g1d8e2d51e5c5cb rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ipa/120120] [16/17 Regression] tail call recusion interferes sometimes with IPA constant prop, x86_64 regresses at r16-170-ga670ebde399548 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/122483] [16/17 Regression] gcc.target/aarch64/sme/streaming_mode_1.c gcc.target/aarch64/sme/za_state_[12].c started to fail after r16-4667 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/121770] [16/17 Regression] 5% slowdown of 503.bwaves_r on Aarch64 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/122582] [16/17 Regression] GCN 'gcc.dg/vect/vect-alias-check-{10,11}.c' vs. 'vect: Handle grouped accesses via gather/scatter' rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/121155] [16/17 Regression] 4-6% slowdown of 444.namd since r16-2193-g363b29a9cfbb47 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/119979] [16/17 Regression] Recent promote_prototypes change breaks multiple ports rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/110352] [C++26] P2630R4 submdspan tkaminsk at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ipa/122455] [16/17 regression] Regression in Snappy tests due to excessive speculation of devirtualization targets since r16-4000 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/121393] [16/17 Regression] GCN gfx1100 offloading: 'libgomp.c-c++-common/for-{11,12,3,5,6,9}.c' execution tests rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/121991] [16/17 Regression] 15% slowdown of 436.cactusADM and 7% slowdown of 410.bwaves on Aarch64 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/117482] [13/14/15/16/17 Regression] Bogus -Wstringop-overflow warning in intrusive list implementation rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/122583] [16/17 Regression] GCN 'gcc.dg/vect/vect-align-2.c' vs. 'vect: Remove type from misalignment hook' rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/122277] [16/17 regression] Costing VF 1 instead of 4 since r16-4411-gb6e802fd55d37e rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug testsuite/122553] [16/17 regression] FAIL: g++.dg/asan/pr120608.C on Power9/10 BE rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug cobol/119896] Assertion failed: e->type == SymField, function cbl_field_of rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/122244] [16/17 Regression] copy prop for aggregates causes a regression due to phiprop not handling call arguments rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/120935] [16/17 Regression] ICE building libstdc++ for mmix rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/122487] [16/17 regression] gcc.dg/guality/pr43051-1.c FAIL starting with - r16-4438-ga93f80feeef744 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/121919] ranges::shuffle and ranges::sample assume a uniform_random_bit_generator provides result_type rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libgcc/121149] [13/14/15/16/17 Regression] build broken for bpf in libgcc rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/117092] [15/16/17 regression] gcc.target/aarch64/pr109072_1.c check-function-bodies s16x4_2 fail since r15-4235-gbcccc3221b838e (xfailed) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ipa/122096] [16/17 Regression] r16-4000 causing 523.xalancbmk_r codesize increase by 13-15% with "-Ofast -march=native -flto" on multiple platforms rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/121441] [16/17 Regression] 5% slowdown of 519.lbm_r on aarch64 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/123994] RISC-V rv64gcb: ICE at -O2 during RTL pass: late_combine rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/117467] [15/16/17 Regression] 521.wrf_r again explodes memory/compile-time wise rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/121546] [16/17 Regression] GCN: 'gfortran.fortran-torture/compile/pr66251.f90' ICE 'during RTL pass: combine', 'in require, at machmode.h:323' rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/111003] [16/17 Regression] Dead Code Elimination Regression at -O3 since r16-4603 (and previously r14-2161) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/120399] Rename and refactor std::__uninitialized_default* algos rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/120957] [16/17 Regression] 6% slowdown of 503.bwaves_r on Zen2 since r16-1647-gc06979ff957485 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/116508] [15/16/17 Regression] `popcount(char) == 1` or char no longer expands to using `(arg ^ (arg - 1)) > arg - 1` trick after r15-2946-gfcc3af99498804 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/114074] [13/14/15/16/17 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r8-343 (SCEV/chrec) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug testsuite/124872] FAIL: gcc.dg/plugin/crash-test-nested-*.c rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/121298] [16/17 Regression] Missed bswap and rotate detection from r16-2601-ge8a51144c02e1c rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/120751] [16/17 Regression] 10-15% slowdown of 454.calculix on Zen4 and Zen5 since r16-1001-g0291f53f8d2343 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug analyzer/99667] RFE: complain about uninitialized member variables in constructor rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug algol68/123006] program-9.a68 causes an ICE rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/117922] [15/16/17 Regression] fold-mem-offsets pass is slow and memory hungry because UD/UD chain usage and the RD df problem rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/120069] [16/17 Regression] Yet another imagick -march=native -flto -Ofast + PGO regression (+ wrf and lbm) since r16-270-ga0a64aa5da0af5 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/123328] 4% slowdown of povray on Zen5 since r16-6152-g4204d3c46581bf with pgo rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug algol68/123132] Tests FAIL with cannot find module rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/106477] With -fno-exception operator new(nothrow) aborts instead of returning null rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/115004] [13/14/15/16/17 Regression] Missed optimization for Dead Code Elimination rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/124481] gcc.dg/tree-ssa/ssa-dom-cse-2.c FAILs rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug ipa/119965] [16/17 Regression] 531.deepsjeng_r binary (PGO) is 50% bigger since r16-116-gcfb04e0de6aa43 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/121471] arm: mcrr2 and mrrc2 were obsoleted in arm8-a rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/108770] [13/14/15/16/17 regression] Spurious -Warray-bounds at -O2 (gcc >= 12) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/120840] Functions with no_callee_saved_registers attribute should preserve frame pointer rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug middle-end/124353] High memory usage building nodejs-24.11.1 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/115683] [15/16/17 Regression] SSE2 regressions after obselete of vcond{,u,eq}. rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug algol68/124115] ICE in a68_wrap_formal_proc_hole, at algol68/a68-low-holes.cc:89 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug d/124122] gdc.test/runnable/test20275.d etc. FAIL rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/124290] 23_containers/mdspan/submdspan tests time out rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/124732] internal compiler error: in install_entity, at cp/module.cc:8298 (building C++ modules code) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/101882] [16/17 Regression] combine vs. insn with earlyclobber and input and output set to a hard register rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/111589] Use relaxed atomic increment (but not decrement!) in shared_ptr rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug sanitizer/124401] gcc.dg/ubsan/pointer-counted-by-bounds-124230.c etc. FAIL rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug tree-optimization/59786] GIMPLE invariant motion misses opportunity to reduce register pressure rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/99552] FAIL: 29_atomics/atomic/wait_notify/bool.cc (test for excess errors) rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/121766] SVE vector cost model does not model narrowing store costs accurately rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/122274] Prevent copy propagation from a non-frame related insn to a frame related insn rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/110352] [C++26] P2630R4 submdspan rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug testsuite/116860] Move optimization from match.pd into tree-ssa-reassoc (optimize_range_tests) where it can be more effective rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/107393] Wrong TLS model for specialized template rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug debug/121903] gcc.dg/debug/ctf/ctf-struct-3.c FAILs rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/122289] std::tuple allocator-extended constructors should use std::make_obj_using_allocator for each element rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libgomp/93226] OpenACC 2.6: acc_memcpy_device runtime function missing rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug fortran/107421] problematic interaction of 'common' and 'threadprivate' rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug bootstrap/110180] On Fedora 38, egrep is now obsolescent rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug analyzer/97113] Support for RTTI within -fanalyzer rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug rtl-optimization/123055] FAIL: gcc.target/powerpc/pr116030.c starting from - r16-5947-ga6c50ec2c6ebcb rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/124100] [contracts] "contract condition is not constant" rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug libstdc++/118030] [C++23] Implement P0401R6, Providing size feedback in the Allocator interface rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug target/120933] Turn on -mtls-dialect=gnu2 by default on x86-64 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug analyzer/97111] Support for exception-handling within -fanalyzer rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug c++/90391] nonconforming value initialization when type T has a base class with a user-defined default constructor rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/04/30 [Bug fortran/122521] Use more high level internal API to manipulate array descriptors rguenth at gcc dot gnu.org via Gcc-bugs

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