[Bug target/98743] ICE in convert_move, at expr.c:220

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98743 --- Comment #3 from Kito Cheng --- Seems like g:3e60ddeb8220ed388819bb3f14e8caa9309fd3c2 is the real root cause

[Bug tree-optimization/98786] ICE: SSA corruption (Unable to coalesce ssa_names 2 and 10 which are marked as MUST COALESCE.)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98786 Richard Biener changed: What|Removed |Added Last reconfirmed||2021-01-22 Status|UNCONFIRM

[Bug target/98784] [8/9/10/11 Regression] sparcv8 regression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98784 Richard Biener changed: What|Removed |Added Target Milestone|--- |8.5

[Bug target/98519] rs6000: @pcrel unsupported on this instruction error in pveclib

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98519 Alan Modra changed: What|Removed |Added CC||amodra at gmail dot com --- Comment #18 fro

[Bug target/98348] [10/11 Regression] GCC 10.2 AVX512 Mask regression from GCC 9

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98348 --- Comment #18 from Hongtao.liu --- Fix on trunk sofar, as jakub suggests, not back port to gcc10.

[Bug target/98348] [10/11 Regression] GCC 10.2 AVX512 Mask regression from GCC 9

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98348 --- Comment #17 from CVS Commits --- The master branch has been updated by hongtao Liu : https://gcc.gnu.org/g:ee78c20e74d30284fee36e22a64e86e45e676029 commit r11-6849-gee78c20e74d30284fee36e22a64e86e45e676029 Author: liuhongt Date: Fri Dec

[Bug target/96891] [AVX512] For vector compare to dest vector, avx512 vector compare could be lowered to avx version

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96891 --- Comment #2 from CVS Commits --- The master branch has been updated by hongtao Liu : https://gcc.gnu.org/g:ee78c20e74d30284fee36e22a64e86e45e676029 commit r11-6849-gee78c20e74d30284fee36e22a64e86e45e676029 Author: liuhongt Date: Fri Dec 1

[Bug rtl-optimization/98786] New: ICE: SSA corruption (Unable to coalesce ssa_names 2 and 10 which are marked as MUST COALESCE.)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98786 Bug ID: 98786 Summary: ICE: SSA corruption (Unable to coalesce ssa_names 2 and 10 which are marked as MUST COALESCE.) Product: gcc Version: 11.0 Status: UNCONFIRMED

[Bug target/95095] Feature request: support -fno-unique-section-names

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95095 --- Comment #5 from Fangrui Song --- Linux kernel include/asm-generic/vmlinux.lds.h currently has #define TEXT_TEXT \ ALIGN_FUNCTION(); \

[Bug target/98697] shl not vectorized for v16qi and v8hi with MVE

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98697 --- Comment #4 from Hongtao.liu --- (In reply to Hongtao.liu from comment #3) > (In reply to Christophe Lyon from comment #2) > > Why would this be different from right shift, where we don't miss the > > optimization? > > It's supposed to be han

[Bug libstdc++/98785] New: _Unwind_ForcedUnwind going through a non-empty exception specification

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98785 Bug ID: 98785 Summary: _Unwind_ForcedUnwind going through a non-empty exception specification Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal

[Bug target/98697] shl not vectorized for v16qi and v8hi with MVE

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98697 --- Comment #3 from Hongtao.liu --- (In reply to Christophe Lyon from comment #2) > Why would this be different from right shift, where we don't miss the > optimization? It's supposed to be handled in vect_recog_over_widening_pattern, but failed

[Bug c++/97966] [10 Regression] maybe_instantiate_noexcept

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97966 Marek Polacek changed: What|Removed |Added Summary|[10/11 Regression] |[10 Regression] |maybe

[Bug c++/97966] [10/11 Regression] maybe_instantiate_noexcept

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97966 --- Comment #4 from CVS Commits --- The master branch has been updated by Marek Polacek : https://gcc.gnu.org/g:bca467e56fe111fa6d876656c60d5704065e83fe commit r11-6848-gbca467e56fe111fa6d876656c60d5704065e83fe Author: Marek Polacek Date: Tu

[Bug target/95095] Feature request: support -fno-unique-section-names

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95095 --- Comment #4 from Segher Boessenkool --- On Sat, Jan 16, 2021 at 09:00:56PM +, i at maskray dot me wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95095 > > --- Comment #3 from Fangrui Song --- > (In reply to Segher Boessenkool from

[Bug sanitizer/91707] [10/11 Regression] spurious stringop-overflow warning with -fsanitize=undefined

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91707 Martin Sebor changed: What|Removed |Added Last reconfirmed|2019-09-09 00:00:00 |2021-1-21 Known to fail|10.0

[Bug testsuite/98771] [10/11 regression] gcc.dg/strcmpopt_8.c FAILs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98771 Martin Sebor changed: What|Removed |Added Ever confirmed|0 |1 Last reconfirmed|

[Bug c++/98659] [11 Regression] ICE tree check: expected tree that contains ‘decl common’ structure, have ‘error_mark’ in maybe_instantiate_noexcept, at cp/pt.c:25445 since r11-6476-gaf362af18f405c34

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98659 --- Comment #5 from Marek Polacek --- (In reply to Matthias Klose from comment #4) > I got reports for this issue for the gcc-10 branch as well. Please could you > consider a backport? That must be a different problem, perhaps 98333.

[Bug tree-optimization/96963] [10/11 Regression] -Wstringop-overflow false positive on -O3 or -O2 -ftree-vectorize when assigning consecutive char struct members

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96963 Martin Sebor changed: What|Removed |Added Last reconfirmed|2020-09-07 00:00:00 |2021-1-21 Keywords|

[Bug c++/98659] [11 Regression] ICE tree check: expected tree that contains ‘decl common’ structure, have ‘error_mark’ in maybe_instantiate_noexcept, at cp/pt.c:25445 since r11-6476-gaf362af18f405c34

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98659 Matthias Klose changed: What|Removed |Added CC||doko at debian dot org --- Comment #4 f

[Bug tree-optimization/94655] [10/11 Regression] -Wstringop-overflow on implicit string assignment with vectorized char store

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94655 Martin Sebor changed: What|Removed |Added Keywords||patch --- Comment #15 from Martin Sebor

[Bug c/98784] [gcc 8.4/9.3/10] sparcv8 regression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98784 --- Comment #3 from Eric Botcazou --- > So -fPIE is not used here but there is a side effect when the patch is > applied. You need to look at the output of 'gcc -v' to be sure of that.

[Bug c/98784] [gcc 8.4/9.3/10] sparcv8 regression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98784 --- Comment #2 from Romain Naour --- Hello, The kernel and userland are built with the same toolchain, but this is the userpace program (such busybox) that crash. Busybox is built with the following flags: Toolchain wrapper executing: 'qem

[Bug target/97969] [9/10/11 Regression][ARM/Thumb] Certain combo of codegen options leads to compilation infinite loop with growing memory use

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97969 --- Comment #22 from Vladimir Makarov --- (In reply to Vladimir Makarov from comment #21) > Additional fix for PR98722 is necessary for this PR. > > 4334b524274203125193a08a8485250c41c2daa9 Sorry, one more fix for PR98777 is necessary for the P

[Bug rtl-optimization/98777] [11 Regression] ICE in update_equiv at gcc/lra-constraints.c:504 since r11-6819-g4334b52427420312

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98777 --- Comment #2 from CVS Commits --- The master branch has been updated by Vladimir Makarov : https://gcc.gnu.org/g:68ba1039c7daf0485b167fe199ed7e8031158091 commit r11-6844-g68ba1039c7daf0485b167fe199ed7e8031158091 Author: Vladimir N. Makarov D

[Bug c/98784] [gcc 8.4/9.3/10] sparcv8 regression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98784 Eric Botcazou changed: What|Removed |Added Ever confirmed|0 |1 Status|UNCONFIRMED

[Bug tree-optimization/88443] [meta-bug] bogus/missing -Wstringop-overflow warnings

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88443 Bug 88443 depends on bug 95353, which changed state. Bug 95353 Summary: [10 Regression] spurious -Wstringop-overflow writing to a trailing array plus offset https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95353 What|Removed

[Bug tree-optimization/95353] [10 Regression] spurious -Wstringop-overflow writing to a trailing array plus offset

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95353 Martin Sebor changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug middle-end/96725] warn for uses of global nonconstant unterminated char arrays where strings are required

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96725 Martin Sebor changed: What|Removed |Added Blocks|88443 |97048 Status|UNCONFIRMED

[Bug tree-optimization/94335] [10/11 Regression] False positive -Wstringop-overflow warning with -O2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94335 Martin Sebor changed: What|Removed |Added Last reconfirmed|2020-03-26 00:00:00 |2021-1-21 --- Comment #10 from Martin Seb

[Bug tree-optimization/94655] [10/11 Regression] -Wstringop-overflow on implicit string assignment with vectorized char store

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94655 Martin Sebor changed: What|Removed |Added Status|NEW |ASSIGNED See Also|

[Bug c/98784] New: [gcc 8.4/9.3/10] sparcv8 regression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98784 Bug ID: 98784 Summary: [gcc 8.4/9.3/10] sparcv8 regression Product: gcc Version: 10.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c

[Bug c++/96188] -Wstringop-overflow false positive on std::vector::push_back with -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96188 Martin Sebor changed: What|Removed |Added Last reconfirmed|2020-07-13 00:00:00 |2021-1-21 Known to fail|

[Bug libfortran/98129] Failure on reading big chunk of /dev/urandom

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98129 anlauf at gcc dot gnu.org changed: What|Removed |Added Attachment #49687|0 |1 is obsolete|

[Bug c++/98463] [11 Regression] internal compiler error: in output_constructor_regular_field, at varasm.c:5491 by r11-2720

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98463 Marek Polacek changed: What|Removed |Added CC||gcc-bugs at marehr dot dialup.fu-b

[Bug c++/96863] [9/10/11 Regression] ICE: in output_constructor_regular_field, at varasm.c:5223

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96863 Marek Polacek changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug tree-optimization/96963] [10/11 Regression] -Wstringop-overflow false positive on -O3 or -O2 -ftree-vectorize when assigning consecutive char struct members

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96963 Martin Sebor changed: What|Removed |Added Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org

[Bug rtl-optimization/98777] [11 Regression] ICE in update_equiv at gcc/lra-constraints.c:504 since r11-6819-g4334b52427420312

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98777 --- Comment #1 from Vladimir Makarov --- Thank you for reporting this. I've reproduced the bug on riscv64 and started to work on fixing it.

[Bug c++/96623] [11 Regression] ICE in inject_parm_decls, at cp/parser.c:23893

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96623 --- Comment #4 from Marek Polacek --- And an extended test to check that various variables are in scope: constexpr int x = 0; struct A { int a1; void foo (int p) { int foovar; struct B { int b1; void bar1 () noexcept(x);

[Bug c++/71879] Error in unevaluated context breaks SFINAE

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71879 Patrick Palka changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug c++/71879] Error in unevaluated context breaks SFINAE

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71879 --- Comment #3 from CVS Commits --- The master branch has been updated by Patrick Palka : https://gcc.gnu.org/g:f645da0e4ab9438dfd0c047c710c7ec6a7d6d8f3 commit r11-6842-gf645da0e4ab9438dfd0c047c710c7ec6a7d6d8f3 Author: Patrick Palka Date: Th

[Bug driver/98783] Wrong ouput of "-O3 -Q --help=optimizers" on gcc built with --enable-frame-pointer

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98783 Martin Liška changed: What|Removed |Added Ever confirmed|0 |1 Assignee|unassigned at gcc do

[Bug fortran/98573] Dynamic type lost on assignment

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98573 Dominique d'Humieres changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed|

[Bug middle-end/90248] [8/9/10/11 Regression] larger than 0 compare fails with -ffinite-math-only -funsafe-math-optimizations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90248 --- Comment #15 from Jakub Jelinek --- Created attachment 50024 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50024&action=edit gcc11-pr90248.patch So, I think at minimum we want this, i.e. turn the bogus simplifications into simplificati

[Bug other/63426] [meta-bug] Issues found with -fsanitize=undefined

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426 Bug 63426 depends on bug 98624, which changed state. Bug 98624 Summary: UBSAN: gcc/cp/module.cc:5895:29: runtime error: member call on null pointer of type 'struct module_state' https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98624 What

[Bug c++/98624] UBSAN: gcc/cp/module.cc:5895:29: runtime error: member call on null pointer of type 'struct module_state'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98624 Nathan Sidwell changed: What|Removed |Added Resolution|--- |FIXED Status|REOPENED

[Bug c++/98624] UBSAN: gcc/cp/module.cc:5895:29: runtime error: member call on null pointer of type 'struct module_state'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98624 --- Comment #4 from CVS Commits --- The master branch has been updated by Nathan Sidwell : https://gcc.gnu.org/g:7944753fad501194eb8a828d6b74270e79d14a4d commit r11-6841-g7944753fad501194eb8a828d6b74270e79d14a4d Author: Nathan Sidwell Date:

[Bug fortran/98573] Dynamic type lost on assignment

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98573 Paul Thomas changed: What|Removed |Added CC||pault at gcc dot gnu.org Assigne

[Bug c++/97742] [10/11 Regression] endless loop with code reduced by creduce/cvise

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97742 Marek Polacek changed: What|Removed |Added CC||mpolacek at gcc dot gnu.org --- Comment

[Bug target/98618] aarch64: oob adrp offset causes relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98618 Wilco changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug target/98618] aarch64: oob adrp offset causes relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98618 --- Comment #7 from CVS Commits --- The releases/gcc-8 branch has been updated by Wilco Dijkstra : https://gcc.gnu.org/g:c9569046bd8ba2671833d600b3bdbdb7de593873 commit r8-10736-gc9569046bd8ba2671833d600b3bdbdb7de593873 Author: Wilco Dijkstra

[Bug target/98730] vceqzq_p64 does not generate vceq with immediate 0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98730 --- Comment #4 from rsandifo at gcc dot gnu.org --- Hmm, yeah, looks like it might be a cost issue then. arm_rtx_costs_internal seems to give CONST_VECTOR a cost of 1 or 4 instructions, whereas a zero CONST_VECTOR is free in this context. Altho

[Bug c++/97597] [11 Regression] ICE in build_over_call, at cp/call.c:9034

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97597 Jason Merrill changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug c++/98531] [11 Regression] g++.dg/modules/xtreme-header-2_a.H etc. FAIL

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98531 --- Comment #5 from Nathan Sidwell --- Created attachment 50022 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50022&action=edit reduced testcase, this is not solaris-specific, but solaris happened to tickle it uniquely

[Bug target/97981] [11 regression] 32-bit x86 'gcc.dg/atomic/c11-atomic-exec-1.c' execution test since r11-5188-g32934a4f45a72144

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97981 Jakub Jelinek changed: What|Removed |Added Resolution|--- |FIXED Status|NEW

[Bug c++/98672] constexpr function - for loop with return statement doesn't get recognized as constexpr subexpression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98672 --- Comment #3 from Jakub Jelinek --- Fixed on the trunk. I think we need to backport this at least to 10.3 eventually.

[Bug c++/98672] constexpr function - for loop with return statement doesn't get recognized as constexpr subexpression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98672 --- Comment #2 from CVS Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:0fb7aa205afebe178c06683037ccd4c41104337a commit r11-6840-g0fb7aa205afebe178c06683037ccd4c41104337a Author: Jakub Jelinek Date: Th

[Bug target/92095] [8/9/10 regression] internal error with -O1 -mcpu=niagara2 -fPIE

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92095 --- Comment #10 from Eric Botcazou --- > This patch produce a regression on sparcv8 SS10 platform. > > In Buildroot we have a defconfig qemu_sparc_ss10_defconfig that was working > (booting) with gcc 7.4, 8.3 and 9.2. But it doesn't boot anymore

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #13 from Jakub Jelinek --- Created attachment 50021 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50021&action=edit gcc11-pr98255.patch The full patch would be I think this. Am going to bootstrap/regtest it just to see what i

[Bug target/98730] vceqzq_p64 does not generate vceq with immediate 0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98730 --- Comment #3 from Christophe Lyon --- At expand time, we have: (insn 13 12 14 2 (set (reg:V2SI 121 [ _11 ]) (neg:V2SI (eq:V2SI (subreg:V2SI (reg:DI 116 [ _6 ]) 0) (subreg:V2SI (reg:DI 118 [ _8 ]) 0 "arm_neon.h":2404:

[Bug tree-optimization/98772] Widening patterns causing missed vectorization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98772 rsandifo at gcc dot gnu.org changed: What|Removed |Added Last reconfirmed||2021-01-21

[Bug other/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 John David Anglin changed: What|Removed |Added Summary|FAIL: |[11 Regression] FAIL:

[Bug ipa/93385] [10/11 Regression] wrong code with u128 modulo at -O2 -fno-dce -fno-ipa-cp -fno-tree-dce

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93385 --- Comment #39 from Jakub Jelinek --- What happened to that patch series? Has it been committed without showing it up in the PR, something else?

[Bug target/98730] vceqzq_p64 does not generate vceq with immediate 0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98730 rsandifo at gcc dot gnu.org changed: What|Removed |Added CC||rsandifo at gcc dot gnu.org

[Bug testsuite/98325] [11 regression] gcc.dg/pr25376.c fails after r11-5027

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98325 seurer at gcc dot gnu.org changed: What|Removed |Added Resolution|FIXED |--- Status|RESOLV

[Bug driver/98783] New: Wrong ouput of "-O3 -Q --help=optimizers" on gcc built with --enable-frame-pointer

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98783 Bug ID: 98783 Summary: Wrong ouput of "-O3 -Q --help=optimizers" on gcc built with --enable-frame-pointer Product: gcc Version: 10.2.0 Status: UNCONFIRMED Seve

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 Jakub Jelinek changed: What|Removed |Added CC||ebotcazou at gcc dot gnu.org --- Comment

[Bug target/98697] shl not vectorized for v16qi and v8hi with MVE

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98697 --- Comment #2 from Christophe Lyon --- Why would this be different from right shift, where we don't miss the optimization?

[Bug rtl-optimization/98782] IRA artificially creating spills due to BB frequencies

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98782 James Greenhalgh changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug rtl-optimization/98782] New: IRA artificially creating spills due to BB frequencies

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98782 Bug ID: 98782 Summary: IRA artificially creating spills due to BB frequencies Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: ra Severity: normal Prior

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #11 from Richard Biener --- (In reply to Richard Biener from comment #9) > (In reply to Jakub Jelinek from comment #8) > > 503 poly_offset_int woffset > > 504 = wi::sext (wi::to_poly_offset (index) >

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #10 from Martin Jambor --- OK, adding an additional check whether tree_could_trap_p is of course easy. I'll wait a little while if the discussion about get_ref_base_and_extent perhaps leads to a different solution but if not, I will

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #9 from Richard Biener --- (In reply to Jakub Jelinek from comment #8) > 503 poly_offset_int woffset > 504 = wi::sext (wi::to_poly_offset (index) > 505 - wi::to_pol

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #8 from Jakub Jelinek --- 503 poly_offset_int woffset 504 = wi::sext (wi::to_poly_offset (index) 505 - wi::to_poly_offset (low_bound), 506

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #7 from Martin Jambor --- Even our constant folding thinks the unsigned expression wraps around. If I tell SRA to fold the expression if the base is a string_cst, the invalid dereference is avoided. My experiment was (I am not propo

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #6 from Jakub Jelinek --- get_ref_base_and_extent is not the right API to check for the UBs caused by out of bounds accesses, tree_could_trap_p is.

[Bug sanitizer/95693] [8/9/10/11 Regression] Incorrect error from undefined behavior sanitizer

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95693 Jakub Jelinek changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned a

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #5 from Martin Jambor --- Right, the issue is that SRA depends on get_ref_base_and_extent to figure out what is being accessed (and so whether it is safe) and that function believes the load is safely from within the array.

[Bug ada/98773] [11 regression] Bootstrap failure: "Trmsgggg" conflicts with declaration

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98773 Rainer Orth changed: What|Removed |Added CC||rguenth at gcc dot gnu.org --- Comment #2

[Bug target/98348] [10/11 Regression] GCC 10.2 AVX512 Mask regression from GCC 9

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98348 --- Comment #16 from Hongtao.liu --- (In reply to Jakub Jelinek from comment #15) > I haven't seen the patch posted to gcc-patches, have I missed it? > Patch review should happen there. https://gcc.gnu.org/pipermail/gcc-patches/2021-January/5629

[Bug target/96372] [11 regression] arm/ivopts.c fails since r11-2012

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96372 --- Comment #3 from CVS Commits --- The master branch has been updated by Andrea Corallo : https://gcc.gnu.org/g:0568f801effcea6f4e066c40bc346513d6b946c5 commit r11-6836-g0568f801effcea6f4e066c40bc346513d6b946c5 Author: Andrea Corallo Date:

[Bug tree-optimization/98772] Widening patterns causing missed vectorization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98772 --- Comment #3 from Richard Biener --- But the issue seems to be t.c:3:22: note: ==> examining statement: _34 = *pix1_19; t.c:3:22: missed: permutation requires at least three vectors _34 = *pix1_19; t.c:3:22: missed: unsupported load perm

[Bug libgomp/98738] task-detach-6.f90 hangs intermittently

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98738 --- Comment #10 from Jakub Jelinek --- I've been wondering whether it wouldn't be best to pass through omp_eventhandle_t the pointer to the gomp_task rather than some particular semaphore and in omp_fulfill_event then decide based on that task,

[Bug other/63426] [meta-bug] Issues found with -fsanitize=undefined

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426 Bug 63426 depends on bug 98624, which changed state. Bug 98624 Summary: UBSAN: gcc/cp/module.cc:5895:29: runtime error: member call on null pointer of type 'struct module_state' https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98624 What

[Bug c++/98624] UBSAN: gcc/cp/module.cc:5895:29: runtime error: member call on null pointer of type 'struct module_state'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98624 Nathan Sidwell changed: What|Removed |Added Resolution|FIXED |--- Status|RESOLVED

[Bug libgomp/98738] task-detach-6.f90 hangs intermittently

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98738 --- Comment #9 from Kwok Yeung --- I have a patch for this now. In addition to posting other semaphores in omp_fulfill_event, GOMP_taskwait also needs to be made aware of detached tasks. Also, task_running_count should not include completed tasks

[Bug c++/98530] [11 Regression] g++.dg/modules/string-1_b.C etc. FAIL

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98530 Nathan Sidwell changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug c++/98530] [11 Regression] g++.dg/modules/string-1_b.C etc. FAIL

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98530 --- Comment #4 from CVS Commits --- The master branch has been updated by Nathan Sidwell : https://gcc.gnu.org/g:3c1cf7350bff6ba03faaa61b44d74bf8a06c6543 commit r11-6834-g3c1cf7350bff6ba03faaa61b44d74bf8a06c6543 Author: Nathan Sidwell Date:

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #4 from Jakub Jelinek --- The return n[0][3][-2U]; access is UB in the program, so if it would be reached, it can do anything, but the important thing is that it is guarded with while (g) where g is always 0 during the exection of the

[Bug target/98618] aarch64: oob adrp offset causes relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98618 --- Comment #6 from CVS Commits --- The releases/gcc-9 branch has been updated by Wilco Dijkstra : https://gcc.gnu.org/g:1e18f4bbd8318db1e606f7092a224e4bb21a8a26 commit r9-9193-g1e18f4bbd8318db1e606f7092a224e4bb21a8a26 Author: Wilco Dijkstra D

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #3 from Martin Jambor --- So SRA sees statements: n[0][2] = "\t\x02\b"; and later _11 = n[0][3][4294967294]; The latter loads a scalar sitting inside what the store above initialized (according to get_ref_base_and_extent) and so

[Bug inline-asm/98778] asm() accepts certain "i" (symbol) constructs despite -fpie for x86-64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98778 --- Comment #3 from jbeulich at suse dot com --- (In reply to Jakub Jelinek from comment #2) > In particular it is up to the inline asm writer to ensure that the result is > PIC compatible through a wise choice of constraints etc. Perhaps the des

[Bug c++/97627] [9/10/11 Regression] loop end condition missing - endless loop with -fPIC

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97627 --- Comment #9 from bin cheng --- (In reply to Jakub Jelinek from comment #8) > Still broken on current 10 branch, as written works fine on the trunk due to > the C++ FE loop changes. > Bin, did you have time to look into this yet? I am very sor

[Bug c++/97627] [9/10/11 Regression] loop end condition missing - endless loop with -fPIC

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97627 --- Comment #8 from Jakub Jelinek --- Still broken on current 10 branch, as written works fine on the trunk due to the C++ FE loop changes. Bin, did you have time to look into this yet?

[Bug tree-optimization/97960] [8/9/10/11 Regression] Wrong code at -O3 since r8-6511-g3ae129323d

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97960 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #5

[Bug ipa/98690] [10/11 Regression] unexpected "'removed_return.213' may be used uninitialized in this function" causes crash since r10-3311-gff6686d2e5f797d6

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98690 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org Sta

[Bug tree-optimization/98255] [10/11 Regression] wrong code at -Os and above with -fPIC on x86_64-pc-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98255 --- Comment #2 from Jakub Jelinek --- Martin, can you please have a look? Thanks.

[Bug c++/98295] [8/9/10/11 Regression] ICE in verify_ctor_sanity, at cp/constexpr.c:4312

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98295 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org --- Comment #3

[Bug target/98348] [10/11 Regression] GCC 10.2 AVX512 Mask regression from GCC 9

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98348 --- Comment #15 from Jakub Jelinek --- I haven't seen the patch posted to gcc-patches, have I missed it? Patch review should happen there.

[Bug inline-asm/98778] asm() accepts certain "i" (symbol) constructs despite -fpie for x86-64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98778 --- Comment #2 from Jakub Jelinek --- In particular it is up to the inline asm writer to ensure that the result is PIC compatible through a wise choice of constraints etc.

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