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• 2026/09/03 [Bug tree-optimization/108477] fwprop over-optimizes conversion from + to | roger at nextmovesoftware dot com via Gcc-bugs
• 2026/09/03 [Bug fortran/104750] Parameterized derived type extension from outside the host module cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/03 [Bug analyzer/127198] New: [16/17 Regression] ICE: in validate, at analyzer/store.cc:720 with -Og -fanalyzer zsojka at seznam dot cz via Gcc-bugs
• 2026/09/03 [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 haochen.jiang at intel dot com via Gcc-bugs
• 2026/09/03 [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 haochen.jiang at intel dot com via Gcc-bugs
• 2026/09/03 [Bug tree-optimization/127195] [17 Regression] ice in flow_bb_inside_loop_p at cfgloop.cc:846 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/03 [Bug c++/127109] [C++26] P0963 structured binding as a condition rejected during constant evaluation when the type uses the tuple protocol cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/03 [Bug tree-optimization/127195] [17 Regression] ice in flow_bb_inside_loop_p at cfgloop.cc:846 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/03 [Bug tree-optimization/89007] [SVE] Implement generic vector average expansion cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/119447] [14/15/16/17 Regression] ICE Segmentation fault with incorrect template class declaration syntax and varadic parameter since r14-9374 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/117351] [14/15/16/17 Regression] ICE while reporting invalid template error pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/119447] [14/15/16/17 Regression] ICE Segmentation fault with incorrect template class declaration syntax and varadic parameter since r14-9374 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/117351] [14/15/16/17 Regression] ICE while reporting invalid template error pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/119447] [14/15/16/17 Regression] ICE Segmentation fault with incorrect template class declaration syntax and varadic parameter since r14-9374 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/127086] RISC-V: mode-switching fails to hoist VXRM writes out of some vectorized loops anton at ozlabs dot org via Gcc-bugs
• 2026/09/02 [Bug demangler/102702] libiberty: heap/stack buffer overflow when decoding user input pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug fortran/124661] [16 Regression] SIGSEGV with -fcheck=bounds from type-bound procedure pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug fortran/127197] [16 Regression] -fcheck=bounds generates a check that reads an uninitialised stack temporary, causing a segfault or a bogus bounds violation pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug fortran/127197] New: [16 Regression] -fcheck=bounds generates a check that reads an uninitialised stack temporary, causing a segfault or a bogus bounds violation dylan.jayatilaka at gmail dot com via Gcc-bugs
• 2026/09/02 [Bug c++/127196] New: [contracts] redeclaration of function with type dependent param used in postcondition accepts non-const param waffl3x at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/126096] ICE while folding predicate-as-counter svwhilelt variant cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c/127192] -Wunused-value warns about static_assert in expression pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/113609] EQ/NE comparison between avx512 kmask and -1 can be optimized with kxortest with checking CF. pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/117232] EQ/NE comparison between avx512 kmask and -1 can be optimized with kxortest with checking CF when using cmov pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/127177] __builtin_isinf vectorization incorrectly signals FE_INVALID pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug modula2/126847] [17 Regression] modula2: Build/install broken for LTO and some platforms after r17-3227-gb3275d4a1f199 gaius at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/113609] EQ/NE comparison between avx512 kmask and -1 can be optimized with kxortest with checking CF. iains at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/127147] [reflection] ICE when splicing reflection of a variably-modified type dschooner05 at gmail dot com via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127195] [17 Regression] ice in flow_bb_inside_loop_p at cfgloop.cc:846 pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/125595] Using inplace_vector across module boundaries causes corrupt gcm ppalka at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/127194] failed to load pendings when using std::inplace_vector with modules ppalka at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127195] ice in flow_bb_inside_loop_p at cfgloop.cc:846 dcb314 at hotmail dot com via Gcc-bugs
• 2026/09/02 [Bug c/127195] ice in flow_bb_inside_loop_p at cfgloop.cc:846 dcb314 at hotmail dot com via Gcc-bugs
• 2026/09/02 [Bug c/127195] New: ice in flow_bb_inside_loop_p at cfgloop.cc:846 dcb314 at hotmail dot com via Gcc-bugs
• 2026/09/02 [Bug c++/126679] ICE segfault with reflection mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/126680] ICE: in set_decl_context_in_fn, at cp/name-lookup.cc:3675 mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/127147] [reflection] ICE when splicing reflection of a variably-modified type mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/127194] New: failed to load pendings when using std::inplace_vector with modules andrey.antufyev at yandex dot ru via Gcc-bugs
• 2026/09/02 [Bug c++/125555] [16/17 Regression] error: mangling of ... conflicts with a previous mangle [import std] oliver.rosten at googlemail dot com via Gcc-bugs
• 2026/09/02 [Bug c++/124241] [reflection] internal compiler error: in friend_accessible_p, at cp/search.cc:817 mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/123615] (c++-reflection) - [meta-bug] reflection issue mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/126906] back threader does not thread paths into unreachable edges but DOM does aldyh at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/126906] back threader does not thread paths into unreachable edges but DOM does cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/106495] [13 Regression] Build fails gcc/tree-ssa-threadbackward.cc:22: gcc/vec.h:890:19: error: array subscript 4294967294 is above array bounds of 'basic_block_def* [1]' [-Werror=array-bounds] cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/122258] ICE on invalid friend declaration with an explicit object parameter imlunex2011 at gmail dot com via Gcc-bugs
• 2026/09/02 [Bug libgomp/127186] [OpenMP] With GOMP_RUNTIME_USM, in 'target'/'target data' still map static global variables (declare target) burnus at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/123615] (c++-reflection) - [meta-bug] reflection issue mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/123609] [reflection] invalid annotation accepted mpolacek at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/125557] Missed if-conversion of load addresses cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug libstdc++/126800] Heterogeneous insertion into unordered_map doesn't work. ncm at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/126906] back threader does not thread paths into unreachable edges but DOM does cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug testsuite/126866] rs6000: gcc.target/powerpc/mma-double-test.c fails on Power10 big-endian. jskumari at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug libstdc++/124268] `import std` initializer symbol is not shipped in `libstdc++` iains at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/126463] [15/16/17 Regression] ICE at -O1 on aarch64 during RTL pass: final rearnsha at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug libgomp/127186] [OpenMP] With GOMP_RUNTIME_USM, in 'target'/'target data' still map static global variables (declare target) cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug fortran/127187] [14/15/16 Regression] ICE (segfault) with ASSOCIATE selector containing %LEN inquiry of deferred-length character jvdelisle at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/126671] bitreverse could be hooked up for zbkb vincenzo.romano at gmail dot com via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127092] [17 Regression] Ranger folds CEIL_DIV_EXPR and ROUND_DIV_EXPR to zero for some nonnegative operands that satisfy a < b pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127092] [17 Regression] Ranger folds CEIL_DIV_EXPR and ROUND_DIV_EXPR to zero for some nonnegative operands that satisfy a < b cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 Re: [PATCH] c++: fix lookup into enclosing scope when instantiating nested class bases Jason Merrill via Gcc-bugs
• 2026/09/02 [Bug libgomp/127186] [OpenMP] With GOMP_RUNTIME_USM, in 'target'/'target data' still map static global variables (declare target) burnus at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero jamborm at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/126906] back threader does not thread paths into unreachable edges but DOM does aldyh at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug demangler/102702] libiberty: heap/stack buffer overflow when decoding user input sowmya.sathram at blackfigtech dot com via Gcc-bugs
• 2026/09/02 [Bug libstdc++/124268] `import std` initializer symbol is not shipped in `libstdc++` redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/127193] New: Alignment problem when using modules sss--- via Gcc-bugs
• 2026/09/02 [Bug c++/81932] Template arguments of type unsigned generate incorrect debugging information simon.marchi at polymtl dot ca via Gcc-bugs
• 2026/09/02 [Bug libstdc++/124268] `import std` initializer symbol is not shipped in `libstdc++` bugzilla.gcc at me dot benboeckel.net via Gcc-bugs
• 2026/09/02 [Bug target/127191] arc: gcc.c-torture/execute/pr68185.c fails since GCC 16 for ARC60x and ARC700 michiel at derhaeg dot be via Gcc-bugs
• 2026/09/02 [Bug target/127188] [avr] gcc.dg/pr45865.c: -fcompare-debug failure pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug ipa/127162] [15/16/17 Regression] internal compiler error: in verify_mask, at value-range.cc:3125 with -O2 since r15-41-gd71308d5a681de aldy at quesejoda dot com via Gcc-bugs
• 2026/09/02 [Bug target/127177] __builtin_isinf vectorization incorrectly signals FE_INVALID mkretz at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c/127192] New: -Wunused-value warns about unused static_assert in expression eczbek.void at gmail dot com via Gcc-bugs
• 2026/09/02 [Bug libstdc++/124268] `import std` initializer symbol is not shipped in `libstdc++` redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug ipa/127162] [15/16/17 Regression] internal compiler error: in verify_mask, at value-range.cc:3125 with -O2 since r15-41-gd71308d5a681de jamborm at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug c++/114804] [13/14/15/16/17 Regression] using of a static variable inside a template is not found for use of a base class template of an inner class during instantiation since r11-6815 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/105679] [12 Regression] extra -Warray-bounds warning added with -fsanitize=shift due to jump threading cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127190] [17 Regression] ICE in vect_create_constant_vectors at tree-vect-slp.cc:10912 since r17-3793 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127190] [17 Regression] ICE in vect_create_constant_vectors at tree-vect-slp.cc:10912 since r17-3793 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug preprocessor/121508] ICE after error with __has_include leom.hardt at inf dot ufrgs.br via Gcc-bugs
• 2026/09/02 [Bug target/126196] The vsm3me.vv instruction (Zvksh, SM3 message expansion) is documented as a reserved encoding when the destination register group (vd) overlaps the first source register group (vs2). When compiling code that uses the __riscv_vsm3me_vv_u32m1 / __riscv_vsm3 majin at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero dcb314 at hotmail dot com via Gcc-bugs
• 2026/09/02 [Bug testsuite/127182] rs6000: gcc.dg/vect/vect-reduc-chain-3.c fails SAD_EXPR vectorization scan on POWER8 (passes on POWER9) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/127188] [avr] gcc.dg/pr45865.c: -fcompare-debug failure gjl at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127149] Wrong code with vectorisation of popcount of bitint cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/127191] New: arc: gcc.c-torture/execute/pr68185.c fails since GCC 16 for ARC60x and ARC700 michiel at derhaeg dot be via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127190] [17 Regression] ICE in vect_create_constant_vectors at tree-vect-slp.cc:10912 since r17-3793 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug testsuite/127189] New: rs6000: Few vsx-{load,store}-element* tests fail in power10 BE target avinashd at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug fortran/127187] [14/15/16 Regression] ICE (segfault) with ASSOCIATE selector containing %LEN inquiry of deferred-length character rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127190] [17 Regression] ICE in vect_create_constant_vectors at tree-vect-slp.cc:10912 since r17-3793 dhruvc at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug analyzer/127181] [16/17 Regression] ICE: in maybe_get_value_range, at analyzer/svalue.h:200 with -fanalyzer rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127190] New: [17 Regression] ICE in vect_create_constant_vectors at tree-vect-slp.cc:10912 since r17-3793 dhruvc at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/127182] rs6000: gcc.dg/vect/vect-reduc-chain-3.c fails SAD_EXPR vectorization scan on POWER8 (passes on POWER9) rguenther at suse dot de via Gcc-bugs
• 2026/09/02 [Bug target/127182] rs6000: gcc.dg/vect/vect-reduc-chain-3.c fails SAD_EXPR vectorization scan on POWER8 (passes on POWER9) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero rguenther at suse dot de via Gcc-bugs
• 2026/09/02 [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 haochen.jiang at intel dot com via Gcc-bugs
• 2026/09/02 [Bug target/127177] __builtin_isinf vectorization incorrectly signals FE_INVALID liuhongt at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/122535] PowerPC: --with-long-double-64 ignored during configure cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/127177] __builtin_isinf vectorization incorrectly signals FE_INVALID liuhongt at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug fortran/127187] [14/15/16 Regression] ICE (segfault) with ASSOCIATE selector containing %LEN inquiry of deferred-length character ivan.pribec at gmail dot com via Gcc-bugs
• 2026/09/02 [Bug debug/127188] New: [avr] gcc.dg/pr45865.c: -fcompare-debug failure gjl at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug fortran/127187] New: [14/15/16 Regression] ICE (segfault) with ASSOCIATE selector containing %LEN inquiry of deferred-length character ivan.pribec at gmail dot com via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/120763] [meta-bug] Tracker for bugs to visit during weekly RISC-V meeting ktkachov at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127166] [17 Regression] Recent saturation/clipping match.pd changes regressing on RISC-V ktkachov at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/127166] [17 Regression] Recent saturation/clipping match.pd changes regressing on RISC-V cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/127114] i386: Bad convert-storm on _Float16 builtin_round vectorization cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug tree-optimization/126906] back threader does not thread paths into unreachable edges but DOM does rguenther at suse dot de via Gcc-bugs
• 2026/09/02 [Bug libgomp/127186] New: [OpenMP] With GOMP_RUNTIME_USM, in 'target'/'target data' still map static global variables (declare target) burnus at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug target/127119] add vectorization for 'round' with flag_trapping_math hongyuw at gcc dot gnu.org via Gcc-bugs
• 2026/09/02 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127177] __builtin_isinf vectorization incorrectly signals FE_INVALID mkretz at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/125138] Instrinsic vec_permx generates incorrect code jeevitha at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c++/120127] [13/14/15/16/17 Regression] ICE in GCC when calling destructor of undefined type name in lambda (lookup_template_class crash) imlunex2011 at gmail dot com via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/126906] back threader does not thread paths into unreachable edges but DOM does aldyh at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/126906] back threader does not thread paths into unreachable edges but DOM does aldyh at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c++/125957] Error when splicing reflection of private member function jasio.lpn at gmail dot com via Gcc-bugs
• 2026/09/01 [Bug middle-end/127185] New: non-call and large struct copies pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug middle-end/127184] New: non-call exception vs function lhs pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127134] [16 Regression] lim at -Ofast incorrectly assumes a store to this (const) will not trap pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127133] [17 Regression] cond_store_replacement_limited mishandles const this pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127183] [16/17 Regression] non-call exceptions for write to this->a is considered as not throw pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127183] [16/17 Regression] non-call exceptions for write to this->a is considered as not throw pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127183] New: [16/17 Regression] non-call exceptions for write to this->a is considered as not throw pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127133] [17 Regression] cond_store_replacement_limited mishandles const this cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127134] [16/17 Regression] lim at -Ofast incorrectly assumes a store to this (const) will not trap cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127134] [16/17 Regression] lim at -Ofast incorrectly assumes a store to this (const) will not trap pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127134] [16/17 Regression] lim at -Ofast incorrectly assumes a store to this (const) will not trap pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127182] rs6000: gcc.dg/vect/vect-reduc-chain-3.c fails SAD_EXPR vectorization scan on POWER10 (passes on POWER9) jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/123492] -mcpu=tt-ascalon-d8 doesn't enable every extension implemented in Ascalon cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/123492] -mcpu=tt-ascalon-d8 doesn't enable every extension implemented in Ascalon cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/120277] [16 Regression] Crash at -O2: in upper_bound, at value-range.h:1181 since r16-577-gc40a4cc2d943d8 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127177] __builtin_isinf vectorization incorrectly signals FE_INVALID mkretz at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127182] New: rs6000: gcc.dg/vect/vect-reduc-chain-3.c fails SAD_EXPR vectorization scan on POWER10 (passes on POWER9) siddhesh at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c++/127132] [17 Regression] ICE in expand_expr_real_1, at expr.cc vladislav.semykin at gmail dot com via Gcc-bugs
• 2026/09/01 [Bug c++/125845] [C++26] P3726R2, Adjustments to Union Lifetime Rules jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c++/99000] [modules] merging of textual redefinitions: declaration std::__copy_move_a2 conflicts with import jason at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/121035] [15 Regression] ICE on valid code at -O{2,3} with "-fno-tree-dce -fno-tree-dse -fno-expensive-optimizations -fno-ssa-phiopt" on x86_64-linux-gnu: Segmentation fault cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug libstdc++/126399] [15/16/17 Regression] __gthread_trigger() is missing hidden visibility on FreeBSD/Solaris vedran at miletic dot net via Gcc-bugs
• 2026/09/01 [Bug rtl-optimization/119160] wrong code with -O2 -finstrument-functions-once -favoid-store-forwarding -fnon-call-exceptions -fschedule-insns -mgeneral-regs-only cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/121468] [16 regression] compiler hang at -Os on x86_64-linux-gnu since r16-1674-g3b84d180fa840a cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug analyzer/127181] New: [16/17 Regression] ICE: in maybe_get_value_range, at analyzer/svalue.h:200 with -fanalyzer zsojka at seznam dot cz via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/123109] `a >> (bits-1) != 0` is not optimized to `a < 0` by match cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/126536] [13/14/15/16/17 Regression] ICE with -funswitch-loops cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/93231] [10 Regression] ICEs since r280132 cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/126463] [15/16/17 Regression] ICE at -O1 on aarch64 during RTL pass: final rearnsha at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/126983] [17 Regression] AArch64 emits fp16 fmov when fp16 is not available rearnsha at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/126977] [17 Regression] factor_out_conditional_operation breaks __builtin_crc* handling pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/126977] [17 Regression] factor_out_conditional_operation breaks __builtin_crc* handling cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127177] __builtin_isinf vectorization incorrectly signals FE_INVALID mkretz at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127086] RISC-V: mode-switching fails to hoist VXRM writes out of some vectorized loops law at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/124328] asm-hard-reg-6.c:61:3: error: register r3 for operand 1 isn't suitable for data type rearnsha at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/110061] [13 only] libatomic: 128-bit atomics should be lock-free on AArch64 wilco at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127039] [17 Regression] forwprop never terminates on a reduction pair against a vector constant (RVV, SVE) cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/123792] aarch64: stdc_bit_ceil generates inefficient code wilco at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127177] __builtin_isinf vectorization incorrectly signals FE_INVALID amonakov at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c/127127] Provide built-in macro __SSIZE_TYPE__ for ssize_t jsm28 at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c++/127097] [modules] Alternate include of a header unit reads stdin cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug middle-end/118012] [avr][13/14/15/16/17 Regression] Expensive code (bit extract + extend + neg + and) instead of bit test gjl at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug bootstrap/127151] -Werror=maybe-uninitialized when compiling GCC trunk from source redi at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug middle-end/118012] [avr][13/14/15/16/17 Regression] Expensive code (bit extract + extend + neg + and) instead of bit test gjl at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127180] missed PHI eliding rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127130] [14/15/16/17 Regression] wrong code at -O{2,3} on x86_64-linux-gnu cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127180] New: missed PHI eliding rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug fortran/127179] New: [OOP] ICE in gfc_conv_structure for CLASS pointer component with an initial data target federico.perini at gmail dot com via Gcc-bugs
• 2026/09/01 [Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug middle-end/127178] New: [OpenMP] With requires unified_shared_memory/self_maps: missing implicit declare target (link) for variables burnus at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127177] New: __builtin_isinf vectorization incorrectly signals FE_INVALID mkretz at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/126932] GCC's RISC-V auto-vectorizer emits FMA instructions with -ffp-contract=off rdapp at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/126932] GCC's RISC-V auto-vectorizer emits FMA instructions with -ffp-contract=off pinskia at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127130] [14/15/16/17 Regression] wrong code at -O{2,3} on x86_64-linux-gnu rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug libfortran/118935] Segmentation fault in 'libgomp.fortran/rwlock_1.f90' when compiling libgfortran with '-O0' huangpei at loongson dot cn via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127154] [17 Regression] valgrind "Conditional jump or move depends on uninitialised value(s)" in eq_p<generic_wide_int<wide_int_storage>, int> (wide-int.h:2254) cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127130] [14/15/16/17 Regression] wrong code at -O{2,3} on x86_64-linux-gnu rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug gcov-profile/127038] [17 Regression] ASAN reports heap-buffer-overflow in gcov cvs-commit at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug gcov-profile/127038] [17 Regression] ASAN reports heap-buffer-overflow in gcov j at lambda dot is via Gcc-bugs
• 2026/09/01 [Bug testsuite/126866] rs6000: gcc.target/powerpc/mma-double-test.c fails on Power10 big-endian. mmatti at linux dot vnet.ibm.com via Gcc-bugs
• 2026/09/01 [Bug target/117584] PowerPC ABI for BitInt needs to be done mmatti at linux dot vnet.ibm.com via Gcc-bugs
• 2026/09/01 [Bug rtl-optimization/126747] [16 Regression] aarch64: wrong code with -Os ktkachov at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug libstdc++/126399] [15/16/17 Regression] __gthread_trigger() is missing hidden visibility on FreeBSD/Solaris andy at omnios dot org via Gcc-bugs
• 2026/09/01 [Bug c++/127081] Within std::format, constexpr expansion of std::basic_format_string errors with: strong_ordering is not a member of 'std' nshead at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127161] [MIPS] cc1 hangs in LRA on indexed loads with a frame-pointer base (-march=octeon2 -O2) orgads at gmail dot com via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127149] Wrong code with vectorisation of popcount of bitint jakub at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug target/127176] New: ICE in require, at machmode.h: 323 with -foffload=amdgcn-amdhsa -O2 chilikin.k at gmail dot com via Gcc-bugs
• 2026/09/01 [Bug testsuite/127175] New: rs6000: vec-replace-word-runnable tests fail on BE target avinashd at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug libstdc++/126949] [15/16/17 Regression] Can't construct an unordered set with a hasher whose ctor is explicit gnu.ojxq8 at dralias dot com via Gcc-bugs
• 2026/09/01 [Bug target/127157] rs6000: xxgenpc-runnable.c test fails on BE, vec_genpcvm generates wrong results on LE as well avinashd at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug libfortran/118935] Segmentation fault in 'libgomp.fortran/rwlock_1.f90' when compiling libgfortran with '-O0' xry111 at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c/127174] New: [OpenMP] declare target does not check for invalid 'device_type' burnus at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c++/127173] [c++] Segfault with fno-enforce-eh-specs on a function with noexcept and a contract saaadhu at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug gcov-profile/127038] [17 Regression] ASAN reports heap-buffer-overflow in gcov jamborm at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug ipa/127160] [13/14/15/16/17 Regression] wrong code at -O2 rguenth at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug c++/127173] New: [c++] Segfault with fno-enforce-eh-specs on a function with noexcept and a contract saaadhu at gcc dot gnu.org via Gcc-bugs
• 2026/09/01 [Bug libfortran/118935] Segmentation fault in 'libgomp.fortran/rwlock_1.f90' when compiling libgfortran with '-O0' huangpei at loongson dot cn via Gcc-bugs
• 2026/09/01 [Bug tree-optimization/127163] [17 Regression] ICE: tree check: expected integer_cst, have complex_cst in to_wide, at tree.h:6744 with division rguenth at gcc dot gnu.org via Gcc-bugs

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