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[Bug target/103623] New: error: unable to generate reloads (ICE in curr_insn_transform, at lra-constraints.c:4132), or error: insn does not satisfy its constraints (ICE in extract_constrain_insn_cached, at recog.c:2682)
2021-12-22 10:48 UTC (2+ messages)
` [Bug target/103623] [12 Regression] "
[Bug middle-end/99633] New: s1113 benchmark of TSVC is unrolled by icc and not by gcc and runs faster on znver3
2021-12-22 10:42 UTC (2+ messages)
` [Bug tree-optimization/99633] "
[Bug middle-end/99408] New: s3251 benchmark of TSVC vectorized by clang runs about 7 times faster compared to gcc
2021-12-22 10:42 UTC (2+ messages)
` [Bug tree-optimization/99408] "
[Bug tree-optimization/92492] AVX512: Missed vectorization opportunity
2021-12-22 10:41 UTC
[Bug c++/96750] New: 10-12% performance decrease in benchmark going from GCC8 to GCC9/GCC10
2021-12-22 10:41 UTC (2+ messages)
` [Bug ipa/96750] [9/10/11/12 Regression] "
[Bug ipa/44612] -flto -fwhole-program: Never read variable not optimized away
2021-12-22 10:21 UTC
[Bug other/96281] New: TBAA does not work as expected for a simple test case
2021-12-22 10:20 UTC (2+ messages)
` [Bug tree-optimization/96281] "
[Bug middle-end/95794] New: strnlen of a constant string plus variable offset not folded when bound exceeds size
2021-12-22 10:14 UTC (2+ messages)
` [Bug tree-optimization/95794] "
[Bug tree-optimization/92714] [missed-optimization] aggregate initialization of an array fills the whole array with zeros first, including leading non-zero elements
2021-12-22 10:06 UTC
[Bug tree-optimization/93939] missing optimization for floating-point expression converted to integer whose result is known at compile time
2021-12-22 10:05 UTC
[Bug middle-end/93902] conversion from 64-bit long or unsigned long to double prevents simple optimization
2021-12-22 9:58 UTC
[Bug tree-optimization/45274] __restrict__ type qualifier does not work on pointers to bitfields
2021-12-22 9:53 UTC
[Bug middle-end/68360] GCC bitfield processing code is very inefficient
2021-12-22 9:52 UTC
[Bug target/92183] gcc tries to create a relocation in a mergeable section
2021-12-22 9:49 UTC
[Bug middle-end/89889] worse code compared to clang with alloca()
2021-12-22 9:37 UTC (2+ messages)
[Bug tree-optimization/89922] Loop on fixed size array is not unrolled and poorly optimized at -O2
2021-12-22 9:35 UTC
[Bug middle-end/87654] Information about constants from condition is not propagated
2021-12-22 9:31 UTC (2+ messages)
[Bug middle-end/87655] `i = i % constant` for static local `i` is not optimized
2021-12-22 9:28 UTC (2+ messages)
[Bug tree-optimization/103803] New: i++; i = i % constant -> i >= constant-1 ? 0 : i+1
2021-12-22 9:27 UTC
[Bug tree-optimization/103797] New: Clang vectorized LightPixel while GCC does not
2021-12-22 9:21 UTC (5+ messages)
` [Bug tree-optimization/103797] "
[Bug driver/93645] Support Clang 12 --ld-path=
2021-12-22 9:16 UTC (2+ messages)
[Bug middle-end/83384] Optimize heap allocation as stack allocation
2021-12-22 9:15 UTC (2+ messages)
[Bug middle-end/103802] New: [12 regression] recip-3.c fails after r12-6087 on Power m32
2021-12-22 9:06 UTC (2+ messages)
` [Bug middle-end/103802] "
[Bug middle-end/80399] Premature optimization with unsigned
2021-12-22 9:04 UTC
[Bug tree-optimization/103800] New: ICE in vectorizable_phi, at tree-vect-loop.c:7861 with -O3 -march=skylake-avx512
2021-12-22 9:00 UTC (4+ messages)
` [Bug tree-optimization/103800] [12 Regression] ICE in vectorizable_phi, at tree-vect-loop.c:7861 with -O3
` [Bug tree-optimization/103800] [12 Regression] ICE in vectorizable_phi, at tree-vect-loop.c:7861 with -O3 since r12-5626-g0194d92c35ca8b3a
[Bug tree-optimization/103799] New: switch expansion could be smarter
2021-12-22 8:56 UTC (3+ messages)
` [Bug tree-optimization/103799] "
[Bug fortran/103796] New: ICE in gfc_conv_expr_val, at fortran/trans-expr.c:9446
2021-12-22 8:45 UTC (2+ messages)
` [Bug fortran/103796] ICE in gfc_conv_expr_val, at fortran/trans-expr.c:9446 since r8-6395-gf8862a1b2afad9d1
[Bug middle-end/78399] g++ generates sub-optimal assembler code when structs aren't explicitly aligned
2021-12-22 8:45 UTC
[Bug middle-end/47341] New: unnecessary versioning in the vectorizer
2021-12-22 8:44 UTC (2+ messages)
` [Bug tree-optimization/47341] unnecessary versioning in the vectorizer, not implemented affine-affine test
[Bug fortran/103795] New: ICE in gfc_conv_array_constructor_expr, at fortran/trans-expr.c:8325
2021-12-22 8:44 UTC (2+ messages)
` [Bug fortran/103795] ICE in gfc_conv_array_constructor_expr, at fortran/trans-expr.c:8325 since r7-1821-g20d0bfcefd6caf09
[Bug debug/103788] New: [9/10/11/12 Regression] '-fcompare-debug' failure (length) w/ -O1
2021-12-22 8:42 UTC (8+ messages)
` [Bug debug/103788] "
[Bug tree-optimization/96114] New: ICE in make_ssa_name_fn, at tree-ssanames.c:279 since r7-536-g381cdae49785fc4b
2021-12-22 8:37 UTC (2+ messages)
` [Bug c/96114] "
[Bug libstdc++/103801] New: Link tests are not allowed after GCC_NO_EXECUTABLES. for pdp11-aout target
2021-12-22 8:27 UTC (2+ messages)
` [Bug libstdc++/103801] "
[Bug tree-optimization/95821] New: Failure to optimize strchr to use memchr for string constant
2021-12-22 7:39 UTC (3+ messages)
` [Bug tree-optimization/95821] "
[Bug libstdc++/103798] New: Missed optimization: char_traits<char>::find (and thus string_view::find_first_of) is slow when invoked with short strings
2021-12-22 7:24 UTC (2+ messages)
` [Bug tree-optimization/103798] memchr with a (small) constant string should be expanded inline
[Bug c++/103490] New: Linkage type of typeinfo of polymorphic object with OOL functions
2021-12-22 7:07 UTC (5+ messages)
` [Bug c++/103490] "
[Bug c++/86126] Note when linking libraries built with different -std options
2021-12-22 3:58 UTC
[Bug c++/98500] New: ICE template template parameter with default parameter lambda
2021-12-22 3:52 UTC (2+ messages)
` [Bug c++/98500] "
[Bug c++/54367] New: [meta-bug] [C++11] lambda expressions
2021-12-22 3:47 UTC (2+ messages)
` [Bug c++/54367] [meta-bug] "
[Bug c++/97458] New: C++ parsing fails when calling specialized template method inside lambda
2021-12-22 3:47 UTC (2+ messages)
` [Bug c++/97458] "
[Bug c++/82980] [9/10/11/12 Regression] template keyword should not be required for captured decl of the "base" type
2021-12-22 3:47 UTC (2+ messages)
[Bug c++/82326] static_cast should be allowed when converting between vectors of just different signedness
2021-12-22 3:32 UTC
[Bug c++/81973] alias virtual function does not cause the vtable to be emitted even if the aliased function is defined in the TU
2021-12-22 3:31 UTC
[Bug d/103604] New: [12 Regression] trunk 20210506 fails to build in libphobos on mips64el-linux-gnu
2021-12-22 3:03 UTC (6+ messages)
` [Bug d/103604] "
[Bug driver/81371] Too many C++ templates output in build error
2021-12-22 2:56 UTC
[Bug c++/79424] dtor synthesized before abstractness correctly determined
2021-12-22 2:50 UTC
[Bug testsuite/103270] New: [12 regression] gcc.dg/vect/pr96698.c inner loop turned from hot to cold after r12-4526
2021-12-22 2:49 UTC (3+ messages)
` [Bug testsuite/103270] "
[Bug c++/35606] Unresolved #pragma weak prevents all function aliasing in C++
2021-12-22 2:09 UTC
[Bug middle-end/36282] [4.7 Regression] Spurious warning "asm declaration ignored due to conflict with previous rename"
2021-12-22 2:09 UTC
[Bug tree-optimization/103793] New: [12 Regression] ICE: in to_reg_br_prob_base, at profile-count.h:277 with -O3 -fno-guess-branch-probability
2021-12-22 1:59 UTC (3+ messages)
` [Bug tree-optimization/103793] [12 Regression] ICE: in to_reg_br_prob_base, at profile-count.h:277 with -O3 -fno-guess-branch-probability since r12-6086-gcd5ae148c47c6dee
[Bug c++/85461] A simple recursive TMP static const initializer defeats gcc
2021-12-22 1:45 UTC
[Bug c++/66153] New: Internal compiler error in nested template function
2021-12-21 21:58 UTC (5+ messages)
` [Bug c++/66153] "
[Bug target/103611] New: GCC generates suboptimal code for SSE2/SSE4.1 64-bit integer element extraction on 32-bit x86 targets
2021-12-21 21:30 UTC (2+ messages)
` [Bug target/103611] "
[Bug d/103739] New: Bootstrap broken on powerpc64-linux
2021-12-21 20:45 UTC (2+ messages)
` [Bug d/103739] "
[Bug d/103528] New: [12 regression] d21 doesn't build on Solaris
2021-12-21 20:30 UTC (2+ messages)
` [Bug d/103528] "
[Bug fortran/103794] New: ICE in gfc_check_reshape, at fortran/check.c:4727
2021-12-21 20:09 UTC (2+ messages)
` [Bug fortran/103794] "
[Bug c++/100673] New: [coroutines] Non-template, UDT await_suspend return-type results in ICE
2021-12-21 19:38 UTC (2+ messages)
` [Bug c++/100673] "
[Bug c++/103790] New: internal compiler error: Segmentation fault when playing with coroutine
2021-12-21 19:38 UTC (6+ messages)
` [Bug c++/103790] "
[Bug c/103791] New: A "segmentation fault" error appears when trying to compile a kernel
2021-12-21 19:35 UTC (3+ messages)
` [Bug c/103791] "
` [Bug middle-end/103791] "
[Bug fortran/103766] New: [12 Regression] Initialization of variable passed via static chain is lost
2021-12-21 19:10 UTC (2+ messages)
` [Bug ipa/103766] "
[Bug driver/82534] [meta-bug] POSIX compliant compiler options
2021-12-21 19:08 UTC
[Bug objc++/58783] Fast enumeration is not supported for Objective-C++
2021-12-21 19:03 UTC
[Bug target/103773] New: wrong code at -Oz due to sign extension
2021-12-21 15:50 UTC (3+ messages)
` [Bug target/103773] "
[Bug tree-optimization/103173] New: strncpy output may be truncated copying 32 bytes from a string of length 1439 (bogus) [-Werror=stringop-truncation]
2021-12-21 15:35 UTC (3+ messages)
` [Bug tree-optimization/103173] "
[Bug sanitizer/103792] New: stack-use-after-scope false positive with exceptions on ARM EABI
2021-12-21 15:31 UTC (2+ messages)
` [Bug sanitizer/103792] "
[Bug ada/103785] New: [12 Regression] Ada LTO+PGO bootstrap ICEs on i586
2021-12-21 15:28 UTC (6+ messages)
` [Bug ada/103785] "
` [Bug target/103785] "
` [Bug target/103785] [12 Regression] Ada bootstrap ICEs on i?86
[Bug target/92137] [ia32] Missing documentation for ia32 builtins
2021-12-21 14:36 UTC
[Bug target/63281] New: powerpc64le creates 64 bit constants from scratch instead of loading them
2021-12-21 14:36 UTC (5+ messages)
` [Bug rtl-optimization/63281] "
[Bug fortran/103789] New: ICE when providing kind argument to mask{l,r}
2021-12-21 13:58 UTC (3+ messages)
` [Bug fortran/103789] "
[Bug c/99578] New: gcc-11 -Warray-bounds or -Wstringop-overread warning when accessing a pointer from integer literal
2021-12-21 13:53 UTC (2+ messages)
` [Bug middle-end/99578] [11/12 Regression] "
[Bug target/49001] New: GCC uses VMOVAPS/PD AVX instructions to access stack variables that are not 32-byte aligned
2021-12-21 12:35 UTC (2+ messages)
` [Bug target/49001] "
[Bug target/93002] while(i--) optimization
2021-12-21 11:43 UTC
[Bug target/93130] PPC simple memset not inlined
2021-12-21 11:43 UTC
[Bug target/69143] PowerPC64: aggregate results are badly handled
2021-12-21 11:42 UTC
[Bug target/30354] -Os doesn't optimize a/CONST even if it saves size
2021-12-21 11:42 UTC
[Bug target/91502] suboptimal atomic_fetch_sub and atomic_fetch_add
2021-12-21 11:40 UTC
[Bug target/86011] Inefficient code generated for ldivmod with constant value
2021-12-21 11:39 UTC
[Bug target/92549] Use x86 xchg instruction more
2021-12-21 11:36 UTC
[Bug target/80517] [missed optimization] constant propagation through Intel intrinsics
2021-12-21 11:33 UTC
[Bug target/92135] Implement popcountsi expansion for arm
2021-12-21 11:29 UTC
[Bug target/87206] Suboptimal code generation for __atomic_compare_exchange_n followed by a comparison
2021-12-21 11:28 UTC
[Bug target/82328] x86 rdrand: flags not used directly when branching on success/failure
2021-12-21 11:25 UTC
[Bug target/90622] Suboptimal code generated for __builtin_avr_insert_bits
2021-12-21 11:17 UTC
[Bug target/88013] can't vectorize rgb to grayscale conversion code
2021-12-21 11:17 UTC
[Bug target/88402] inefficient code generation for mask from CC
2021-12-21 11:13 UTC
[Bug target/87601] Missed opportunity for flag reuse and macro-op fusion on x86
2021-12-21 11:09 UTC (2+ messages)
` [Bug tree-optimization/87601] "
[Bug target/87565] suboptimal memory-indirect tailcalls on arm
2021-12-21 11:05 UTC
[Bug target/87548] Optimize fetch atomics with unused results
2021-12-21 11:04 UTC (2+ messages)
[Bug target/87223] -Os produces sub-optimal x86 machine code for initialization with zero
2021-12-21 10:57 UTC
[Bug target/103787] New: [12 regression] SEGV in gnat1 breaks i?86 bootstrap
2021-12-21 10:49 UTC (3+ messages)
` [Bug target/103787] "
[Bug fortran/77525] wrong requirement of an upper bound for an array argument
2021-12-21 10:02 UTC
[Bug libstdc++/100017] New: error: 'fenv_t' has not been declared in '::' x86_64-w64-mingw32 host cross toolchain fails to build
2021-12-21 9:44 UTC (5+ messages)
` [Bug libstdc++/100017] [11/12 regression] error: 'fenv_t' has not been declared in '::' -- canadian compilation fails
[Bug c++/103780] New: zero pointer is considered true
2021-12-21 9:34 UTC (5+ messages)
` [Bug c++/103780] "
[Bug tree-optimization/103786] New: Suspicious code in verify_type
2021-12-21 8:49 UTC (3+ messages)
` [Bug ipa/103786] "
[Bug fortran/103782] New: internal error occurs when overloading intrinsic
2021-12-21 8:25 UTC (3+ messages)
` [Bug fortran/103782] [9/10/11/12 Regression] "
` [Bug fortran/103782] [9/10/11/12 Regression] internal error occurs when overloading intrinsic since r9-1566-g87c789f1c0b2df41
[Bug c/103645] New: Gimplifier does not remove empty struct stores in a few cases
2021-12-21 4:10 UTC (2+ messages)
` [Bug middle-end/103645] "
[Bug ipa/99419] New: possible missed optimization for dead code elimination
2021-12-21 3:16 UTC (2+ messages)
` [Bug ipa/99419] "
[Bug ipa/92800] IPA escape analysis for structs
2021-12-21 3:16 UTC
[Bug target/103784] New: suboptimal code for returning bool value on target ppc
2021-12-21 3:02 UTC (5+ messages)
` [Bug target/103784] "
[Bug middle-end/94600] New: Ignored volatile specifier on loop unrolling and bitfield misoptimization
2021-12-21 2:46 UTC (2+ messages)
` [Bug middle-end/94600] "
[Bug c++/103783] New: Ambiguous overload between constrained static member and unconstrained non-static member
2021-12-21 1:50 UTC (2+ messages)
` [Bug c++/103783] "
[Bug target/103750] New: [i386] GCC schedules KMOV instructions that destroys performance in loop
2021-12-21 1:41 UTC (2+ messages)
` [Bug target/103750] "
[Bug rtl-optimization/68150] New: postreload-gcc ignores partially clobbered registers
2021-12-20 22:23 UTC (2+ messages)
` [Bug rtl-optimization/68150] postreload-gcse "
[Bug fortran/103777] New: ICE in gfc_simplify_maskl, at fortran/simplify.c:4918
2021-12-20 22:05 UTC (4+ messages)
` [Bug fortran/103777] "
[Bug middle-end/103781] New: [AArch64, 11 regr.] Failed partial vectorization of mulv2di3
2021-12-20 21:51 UTC (5+ messages)
` [Bug middle-end/103781] "
` [Bug target/103781] Cost model for SLP for aarch64 is not so good still
` [Bug target/103781] generic/cortex-a53 cost model for SLP for aarch64 is good
[Bug fortran/103778] New: [10/11/12 Regression] ICE: Invalid expression in gfc_element_size
2021-12-20 21:19 UTC (3+ messages)
` [Bug fortran/103778] "
[Bug fortran/103776] New: ICE in gfc_compare_string, at fortran/arith.c:1118
2021-12-20 21:08 UTC (2+ messages)
` [Bug fortran/103776] "
[Bug c++/59739] New: missed optimization: attribute ((pure)) could be honored more often
2021-12-20 20:28 UTC (2+ messages)
` [Bug c++/59739] missed optimization: attribute ((pure)) with aggregate returns
[Bug tree-optimization/93540] Attributes pure and const not working with aggregate return types, even trivial ones
2021-12-20 20:28 UTC
[Bug ipa/86132] Failure to elide condition known to be non-null
2021-12-20 20:25 UTC
[Bug target/103772] New: wrong code with -mavx512fp16
2021-12-20 20:20 UTC (3+ messages)
` [Bug target/103772] [12 Regression] wrong code with -mavx512fp16 since r12-5700-g7eb961d83b0eda53
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