[Bug sanitizer/99418] sanitizer checks for accessing multidimentional VLA-array

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99418 --- Comment #2 from Ivan Sorokin --- It looks like this is related to ignore_off_by_one parameter of ubsan_instrument_bounds. As can be seen in gimple the problematic .UBSAN_BOUNDS checks against array size plus 1.

[Bug gcov-profile/99440] New: [GCOV] Wrong coverage with callsite

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99440 Bug ID: 99440 Summary: [GCOV] Wrong coverage with callsite Product: gcc Version: 10.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: gcov-profile

[Bug rtl-optimization/95405] Unnecessary stores with std::optional

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95405 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement Ever confirmed|0

[Bug debug/95432] inconsistent behaviors at -O2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95432 --- Comment #2 from Andrew Pinski --- Assembly: .loc 1 12 3 is_stmt 1 view .LVU12 .loc 1 10 8 is_stmt 0 view .LVU13 movaps %xmm0, (%rsp) .loc 1 11 8 view .LVU14 movaps %xmm0, 32(%rsp) .loc 1 12 13

[Bug debug/95431] inconsistent behaviors at -O2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95431 --- Comment #2 from Andrew Pinski --- Looks correct at the gimple level: [t.c:6:3] # DEBUG BEGIN_STMT [t.c:6:16] one.0_1 ={v} one; [t.c:6:16] _2 = (char) one.0_1; [t.c:6:8] a1[0] = _2; [t.c:6:8] MEM [(char *)&a1 + 1B] = 770; [t.c:6:8

[Bug libstdc++/99439] New: use_facet> (l); get() API with kMonthDayYearFormat = L"%m/%d/%Y" should allow missing leading zero

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99439 Bug ID: 99439 Summary: use_facet> (l); get() API with kMonthDayYearFormat = L"%m/%d/%Y" should allow missing leading zero Product: gcc Version: 10.2.0

[Bug middle-end/98865] Missed transform of (a >> 63) * b

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98865 Andrew Pinski changed: What|Removed |Added Last reconfirmed||2021-03-07 Severity|normal

[Bug target/99422] [11 Regression] ICE in extract_constrain_insn building glibc pthread_create

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422 Andrew Pinski changed: What|Removed |Added CC||gerald at pfeifer dot com --- Comment #5

[Bug bootstrap/99438] [11 regression] libgcc/soft-fp/divtf3.c:51:1: error: unrecognizable insn

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99438 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug target/99422] [11 Regression] ICE in extract_constrain_insn building glibc pthread_create

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422 Andrew Pinski changed: What|Removed |Added CC||italolmm2018 at outlook dot com --- Comm

[Bug target/99432] ICE in extract_constrain_insn, at recog.c:2670 when building libgcc for i686

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99432 Andrew Pinski changed: What|Removed |Added Resolution|--- |DUPLICATE Status|UNCONFIRMED

[Bug target/99195] Optimise away vec_concat of 64-bit AdvancedSIMD operations with zeroes in aarch64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99195 Andrew Pinski changed: What|Removed |Added Ever confirmed|0 |1 Severity|normal

[Bug middle-end/99370] calling a virtual function in insufficient space silently folded to __builtin_unreachable

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99370 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement

[Bug target/99312] __ARM_ARCH is not implemented correctly when compiled with -march=armv8.1-a

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99312 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug target/98792] Fail to use SHRN instructions for narrowing shift on aarch64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98792 Andrew Pinski changed: What|Removed |Added Last reconfirmed||2021-03-07 Status|UNCONFIRME

[Bug bootstrap/99438] New: [11 regression] libgcc/soft-fp/divtf3.c:51:1: error: unrecognizable insn

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99438 Bug ID: 99438 Summary: [11 regression] libgcc/soft-fp/divtf3.c:51:1: error: unrecognizable insn Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal

[Bug target/99437] [11 Regression] Error: immediate value out of range 1 to 8 at operand 3 -- `shrn v1.8b,v1.8h,15'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99437 Andrew Pinski changed: What|Removed |Added Last reconfirmed||2021-03-07 Ever confirmed|0

[Bug c/99420] New warning -Warray-parameter

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99420 Eric Gallager changed: What|Removed |Added CC||egallager at gcc dot gnu.org,

[Bug target/99437] [11 Regression] Error: immediate value out of range 1 to 8 at operand 3 -- `shrn v1.8b,v1.8h,15'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99437 Andrew Pinski changed: What|Removed |Added Summary|Error: immediate value out |[11 Regression] Error:

[Bug target/99437] Error: immediate value out of range 1 to 8 at operand 3 -- `shrn v1.8b,v1.8h,15'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99437 --- Comment #1 from Khem Raj --- the version of gcc in use is gcc version 11.0.1 20210306 (experimental) (GCC)

[Bug target/99437] New: Error: immediate value out of range 1 to 8 at operand 3 -- `shrn v1.8b,v1.8h,15'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99437 Bug ID: 99437 Summary: Error: immediate value out of range 1 to 8 at operand 3 -- `shrn v1.8b,v1.8h,15' Product: gcc Version: 11.0 Status: UNCONFIRMED Severity:

[Bug sanitizer/99418] sanitizer checks for accessing multidimentional VLA-array

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99418 --- Comment #1 from Ivan Sorokin --- Here is the reduced example. It doesn't SIGSEGV, but it doesn't report any sanitizer errors either: $ g++ -g -fsanitize=bounds 3.cpp $ cat 3.cpp #include void escape(int& a) {} void test(size_t n, size_t m

[Bug target/99434] std::bit_cast generates more instructions than __builtin_bit_cast and memcpy with -march=native

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99434 --- Comment #3 from Andrew Pinski --- (In reply to cqwrteur from comment #2) > (In reply to Andrew Pinski from comment #1) > > This is just a register allocation issue dealing with mulx and TImode. > > > > If mulq was used instead (that is witho

[Bug c/99295] [9/10 Regression] documentation on __attribute__((malloc)) is wrong

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99295 --- Comment #6 from Roland Illig --- Thank you for updating the documentation. It reads really nice now and explains everything I would need or like to know when I stumble upon this function attribute.

[Bug c++/99287] std::source_location::function_name breaks constexpr

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99287 Patrick Palka changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug c++/99287] std::source_location::function_name breaks constexpr

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99287 --- Comment #7 from CVS Commits --- The master branch has been updated by Patrick Palka : https://gcc.gnu.org/g:d1bba463bd0d5692b7fa58ee37a61a55b2517456 commit r11-7546-gd1bba463bd0d5692b7fa58ee37a61a55b2517456 Author: Patrick Palka Date: Sa

[Bug middle-end/98689] [11 Regression] FAIL: gcc.dg/torture/stackalign/builtin-return-1.c -O1 execution test

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98689 --- Comment #3 from John David Anglin --- Created attachment 50320 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50320&action=edit .s diff to gcc10 .s The following code is wrong in gcc-11: - ldw 12(%r3),%r28 + ldw 12(%r3),%r

[Bug target/99434] std::bit_cast generates more instructions than __builtin_bit_cast and memcpy with -march=native

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99434 --- Comment #2 from cqwrteur --- (In reply to Andrew Pinski from comment #1) > This is just a register allocation issue dealing with mulx and TImode. > > If mulq was used instead (that is without -march=native), all of the > functions are done c

[Bug target/99434] std::bit_cast generates more instructions than __builtin_bit_cast and memcpy with -march=native

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99434 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement Target|

[Bug c++/99436] New: ICE in get_cxx_dialect_name, at cp/name-lookup.c:6955 when using modules on C++23

Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: italolmm2018 at outlook dot com Target Milestone: --- ICE when trying to 'export module' under C++23/C++2B: gcc version 11.0.1 20210306 (experimental), confi

[Bug target/99432] ICE in extract_constrain_insn, at recog.c:2670 when building libgcc for i686

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99432 Andrew Pinski changed: What|Removed |Added Depends on||99422 --- Comment #1 from Andrew Pinski

[Bug target/99435] New: avr: incorrect I/O address ranges for some cores

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99435 Bug ID: 99435 Summary: avr: incorrect I/O address ranges for some cores Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component

[Bug tree-optimization/99434] New: std::bit_cast generates more instructions than __builtin_bit_cast and memcpy with -march=native

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99434 Bug ID: 99434 Summary: std::bit_cast generates more instructions than __builtin_bit_cast and memcpy with -march=native Product: gcc Version: 11.0 Status: UNCONFIRMED

[Bug c++/99433] New: custom friend pipe-operator| conflicts with range adaptor?

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99433 Bug ID: 99433 Summary: custom friend pipe-operator| conflicts with range adaptor? Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Prio

[Bug target/99432] New: ICE in extract_constrain_insn, at recog.c:2670 when building libgcc for i686

: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: italolmm2018 at outlook dot com Target Milestone: --- gcc version 11.0.1 20210306 (experimental), configured with: ../configure --target=i686-elf --prefix=/home/italo/chos

[Bug target/99422] [11 Regression] ICE in extract_constrain_insn building glibc pthread_create

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422 David Binderman changed: What|Removed |Added CC||dcb314 at hotmail dot com --- Comment

[Bug c/99431] Return value of __builtin_memset() incorrect if partially optimized away

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99431 --- Comment #3 from Jonathon Reinhart --- Yep, that's it. I figured there had to be a dup, but couldn't find it. Thanks Jakub.

[Bug c/99431] Return value of __builtin_memset() incorrect if partially optimized away

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99431 Jakub Jelinek changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug tree-optimization/94130] [8 Regression] Unintended result with optimization option when assigning two structures, memset and 0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94130 Jakub Jelinek changed: What|Removed |Added CC||jonathon.reinhart at gmail dot com ---

[Bug c/99431] Return value of __builtin_memset() incorrect if partially optimized away

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99431 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #1

[Bug c++/99429] [10/11 Regression] ICE for bool return from <=>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99429 --- Comment #3 from Jakub Jelinek --- Slightly reduced: namespace std { struct strong_ordering { int _v; constexpr strong_ordering (int v) :_v(v) {} constexpr operator int (void) const { return _v; } static const strong_ordering less; s

[Bug c++/99429] [10/11 Regression] ICE for bool return from <=>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99429 Jakub Jelinek changed: What|Removed |Added Target Milestone|--- |10.3 Status|UNCONFIRMED

[Bug libfortran/99218] [8/9/10/11 Regression] matmul on temporary array accesses invalid memory (segfault)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99218 --- Comment #6 from CVS Commits --- The releases/gcc-10 branch has been updated by Harald Anlauf : https://gcc.gnu.org/g:4fbef612ca1adb71c90eab0d6a682ec6af5b7c93 commit r10-9420-g4fbef612ca1adb71c90eab0d6a682ec6af5b7c93 Author: Harald Anlauf D

[Bug c/99431] New: Return value of __builtin_memset() incorrect if partially optimized away

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99431 Bug ID: 99431 Summary: Return value of __builtin_memset() incorrect if partially optimized away Product: gcc Version: 9.3.1 Status: UNCONFIRMED Severity: normal

[Bug rtl-optimization/99421] ICE:in code_motion_process_successors, at sel-sched.c:6389 on aarch64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99421 --- Comment #2 from qinzhao at gcc dot gnu.org --- Created attachment 50318 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50318&action=edit tar ball to repeat the failure

[Bug libstdc++/99430] New: std::filesystem::path: UNC device paths with \\?\… not supported properly

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99430 Bug ID: 99430 Summary: std::filesystem::path: UNC device paths with \\?\… not supported properly Product: gcc Version: 10.2.0 Status: UNCONFIRMED Severity: norm

[Bug c++/99365] [11 Regression] ICE on partial specialization with constrained placeholder NTTP

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99365 Patrick Palka changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug c++/96330] Constexpr variables cannot be used in the template context.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96330 Patrick Palka changed: What|Removed |Added Target Milestone|--- |11.0 Resolution|---

[Bug gcov-profile/99406] [11 regression] MAP_ANONYMOUS undeclared in libgcov.h

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99406 Jakub Jelinek changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug gcov-profile/99406] [11 regression] MAP_ANONYMOUS undeclared in libgcov.h

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99406 --- Comment #5 from CVS Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:73a9216b8a47889234c94e3aaec193391ee6604d commit r11-7543-g73a9216b8a47889234c94e3aaec193391ee6604d Author: Jakub Jelinek Date: Sa

[Bug c++/99429] ICE for bool return from <=>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99429 Mike Sharov changed: What|Removed |Added Attachment #50315|0 |1 is obsolete|

[Bug c++/99429] New: ICE for bool return from <=>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99429 Bug ID: 99429 Summary: ICE for bool return from <=> Product: gcc Version: 10.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assig

[Bug ipa/99122] [10/11 Regression] ICE in force_constant_size, at gimplify.c:733

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99122 David Binderman changed: What|Removed |Added CC||dcb314 at hotmail dot com --- Comment

[Bug c/99137] ICE in gimplify_scan_omp_clauses, at gimplify.c:9833

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99137 Tobias Burnus changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug c/99137] ICE in gimplify_scan_omp_clauses, at gimplify.c:9833

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99137 --- Comment #8 from CVS Commits --- The releases/gcc-9 branch has been updated by Tobias Burnus : https://gcc.gnu.org/g:47a0284fe7d4c996cc054c13e196ee3983025fb3 commit r9-9270-g47a0284fe7d4c996cc054c13e196ee3983025fb3 Author: Tobias Burnus Dat

[Bug c/99137] ICE in gimplify_scan_omp_clauses, at gimplify.c:9833

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99137 --- Comment #7 from CVS Commits --- The releases/gcc-10 branch has been updated by Tobias Burnus : https://gcc.gnu.org/g:ed8fede89a705b031d3123c502717d7bc8b29320 commit r10-9419-ged8fede89a705b031d3123c502717d7bc8b29320 Author: Tobias Burnus D

[Bug fortran/97927] gfortran: ICE in lookup_field_for_decl, at tree-nested.c:288

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97927 --- Comment #15 from Tobias Burnus --- Patch: https://gcc.gnu.org/pipermail/gcc-patches/2021-March/566366.html

[Bug target/99405] Rotate with mask not optimized on x86 for QI/HImode rotates

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99405 Bug 99405 depends on bug 99396, which changed state. Bug 99396 Summary: std::rotl and std::rotr Does not convert into ROTATE on the gimple level https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99396 What|Removed |

[Bug tree-optimization/99396] std::rotl and std::rotr Does not convert into ROTATE on the gimple level

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99396 Jakub Jelinek changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug tree-optimization/99396] std::rotl and std::rotr Does not convert into ROTATE on the gimple level

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99396 --- Comment #19 from CVS Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:84185598dc7470bad4e7f8c22b64e3c944efb670 commit r11-7542-g84185598dc7470bad4e7f8c22b64e3c944efb670 Author: Jakub Jelinek Date: S

[Bug target/99422] [11 Regression] ICE in extract_constrain_insn building glibc pthread_create

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422 --- Comment #2 from Jakub Jelinek --- I see the function is called before selecting a particular alternative, so perhaps it means to care only about constraints like "X" and "" and not say that mixed with other constraints etc. But, shouldn't the

[Bug c++/99227] [meta] [modules] Bugs relating to header-units of STL header files

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99227 Alexander Lelyakin changed: What|Removed |Added CC||alexander.lelyakin@googlema

[Bug c++/98056] ICE tree check: expected record_type or union_type or qual_union_type, have array_type in build_special_member_call, at cp/call.c:9862 since r11-2183-g0f66b8486cea8668

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98056 --- Comment #5 from Iain Sandoe --- thanks for the reports (I have some idea about where the issue is coming from, but not fixed yet).

[Bug c++/98056] ICE tree check: expected record_type or union_type or qual_union_type, have array_type in build_special_member_call, at cp/call.c:9862 since r11-2183-g0f66b8486cea8668

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98056 --- Comment #4 from Nils Gladitz --- Not sure if this is helpful at all but I think I ran into the same issue and reduced it to the following which is slightly shorter but also keeps the standard C++ includes intact (manually reintroduced them af

[Bug target/99422] [11 Regression] ICE in extract_constrain_insn building glibc pthread_create

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422 Jakub Jelinek changed: What|Removed |Added Status|UNCONFIRMED |NEW Priority|P3

[Bug target/99422] [11 Regression] ICE in extract_constrain_insn building glibc pthread_create

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #1

[Bug rtl-optimization/99421] ICE:in code_motion_process_successors, at sel-sched.c:6389 on aarch64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99421 Martin Liška changed: What|Removed |Added Status|UNCONFIRMED |WAITING Ever confirmed|0

[Bug gcov-profile/97461] [11 Regression] allocate_gcov_kvp() deadlocks in firefox LTO+PGO build (overridden malloc() recursion)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97461 --- Comment #33 from Martin Liška --- > Tested today's gcc against firefox-86 in lto+pgo mode. Built fine. Thank you! I thank you. You tested various attempts I proposed :)