[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #32 from Florian Weimer --- There's this in standards.texi: Most of the compiler support routines used by GCC are present in @file{libgcc}, but there are a few exceptions. GCC requires the freestanding environment provide @code{memc

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #33 from rguenther at suse dot de --- On Thu, 23 Nov 2023, fw at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 > > --- Comment #32 from Florian Weimer --- > There's this in standards.texi: > > Most of

[Bug c++/110348] [C++26] P2741R3 - User-generated static_assert messages

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110348 --- Comment #14 from CVS Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:6ce952188ab39e303e4f63e474b5cba83b5b12fd commit r14-5771-g6ce952188ab39e303e4f63e474b5cba83b5b12fd Author: Jakub Jelinek Date:

[Bug target/112672] [14 Regression] wrong code with __builtin_parityl() at -O and above on x86_64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112672 Richard Biener changed: What|Removed |Added Priority|P3 |P1

[Bug tree-optimization/112673] [14 Regression] ICE verify_gimple failed since r14-5557-g6dd4c703be17fa

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112673 Richard Biener changed: What|Removed |Added Target Milestone|--- |14.0

[Bug debug/112674] [14 Regression] Compare-debug failure after recent change on c6x

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112674 Richard Biener changed: What|Removed |Added Last reconfirmed||2023-11-23 Assignee|unassign

[Bug target/112675] [14 Regression] r14-5385-g0a140730c97087 caused regression on testcases for i386

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112675 Richard Biener changed: What|Removed |Added Keywords||testsuite-fail, wrong-code Target Mi

[Bug target/112676] [14 regression] ICE in extract_insn, at recog.cc:2804

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112676 Richard Biener changed: What|Removed |Added Target||x86_64-*-* Target Milestone|---

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #34 from CVS Commits --- The master branch has been updated by Richard Biener : https://gcc.gnu.org/g:7758cb4b53e8a33642709402ce582f769eb9fd18 commit r14-5772-g7758cb4b53e8a33642709402ce582f769eb9fd18 Author: Richard Biener Date:

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #35 from Jakub Jelinek --- Note, clang makes the same assumption apparently (while MSVC emits rep movs inline and ICC either that, or calls _intel_fast_memcpy). As I mentioned earlier, if glibc and other libraries provide an alias to

[Bug c++/110348] [C++26] P2741R3 - User-generated static_assert messages

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110348 Jakub Jelinek changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug c++/110338] Implement C++26 language features

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110338 Bug 110338 depends on bug 110348, which changed state. Bug 110348 Summary: [C++26] P2741R3 - User-generated static_assert messages https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110348 What|Removed |Added ---

[Bug c++/110345] [C++26] P2552R3 - On the ignorability of standard attributes

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110345 --- Comment #2 from Jakub Jelinek --- The fallthrough stuff is still outstanding I think and I'll have a look. part is done in r14-5561-g52eedfa00960f2d255ec542626e3531a65aa8bb8 The rest unresolved.

[Bug target/111170] [13/14 regression] Malformed manifest does not allow to run gcc on Windows XP (Accessing a corrupted shared library) since r13-6552-gd11e088210a551

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70 --- Comment #12 from Costas Argyris --- I think this can be considered as fixed now, since the new --disable-win32-utf8-manifest configure option leaves out the utf8 manifest and you shouldn't have a problem running gcc even on XP if you configu

[Bug c++/110348] [C++26] P2741R3 - User-generated static_assert messages

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110348 --- Comment #16 from corentinjabot at gmail dot com --- (In reply to Jakub Jelinek from comment #15) > Now implemented for GCC 14. Thanks for working on this > As I wrote already in the PR, in addition to looking through the paper > I l

[Bug target/112547] 9% exec time regression of 462.libquantum SPEC on AMD zen4 CPU

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112547 Filip Kastl changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug middle-end/26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163 Bug 26163 depends on bug 112547, which changed state. Bug 112547 Summary: 9% exec time regression of 462.libquantum SPEC on AMD zen4 CPU https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112547 What|Removed |Added -

[Bug target/112672] [14 Regression] wrong code with __builtin_parityl() at -O and above on x86_64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112672 Uroš Bizjak changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned at

[Bug c++/110348] [C++26] P2741R3 - User-generated static_assert messages

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110348 --- Comment #17 from Jakub Jelinek --- (In reply to corentinjabot from comment #16) > Clang always evaluate if i recall, the error is actually a warning that > defaults to error. I initially had a warning for it, but Jason preferred not to warn

[Bug target/112677] New: ASAN reports stack-buffer-overflow in tree-vect-loop.cc vect_is_simple_use when compiling with -mavx512

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112677 Bug ID: 112677 Summary: ASAN reports stack-buffer-overflow in tree-vect-loop.cc vect_is_simple_use when compiling with -mavx512 Product: gcc Version: 14.0

[Bug libstdc++/110879] [14 Regression] Unnecessary reread from memory in a loop with std::vector

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110879 --- Comment #5 from CVS Commits --- The master branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:256d64b3460807f33ff2f70e676801bdcf908c1c commit r14-5774-g256d64b3460807f33ff2f70e676801bdcf908c1c Author: Jonathan Wakely Date:

[Bug middle-end/112336] fsanitize=address vs _BitInt with a non-mode size (smaller than max mode size)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112336 --- Comment #5 from CVS Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:f9982ef4f55bd3a63745e03ac6d68b4a92fa8bce commit r14-5776-gf9982ef4f55bd3a63745e03ac6d68b4a92fa8bce Author: Jakub Jelinek Date: T

[Bug middle-end/112336] fsanitize=address vs _BitInt with a non-mode size (smaller than max mode size)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112336 Jakub Jelinek changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug middle-end/112406] [14 Regression] Several SPECCPU 2017 benchmarks fail with on internal compiler error: in expand_insn, at optabs.cc:8305 after g:01c18f58d37865d5f3bbe93e666183b54ec608c7

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112406 Tamar Christina changed: What|Removed |Added Status|REOPENED|RESOLVED Resolution|---

[Bug target/112670] RISC-V: Run fail on pr65518.c with -flto

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112670 --- Comment #2 from CVS Commits --- The master branch has been updated by Robin Dapp : https://gcc.gnu.org/g:35a688f434159a923420310860c5bc721e29a741 commit r14-5777-g35a688f434159a923420310860c5bc721e29a741 Author: Juzhe-Zhong Date: Thu No

[Bug target/112599] RISC-V regression testsuite errors with rv64gcv_zvl1024b

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112599 --- Comment #3 from CVS Commits --- The master branch has been updated by Robin Dapp : https://gcc.gnu.org/g:35a688f434159a923420310860c5bc721e29a741 commit r14-5777-g35a688f434159a923420310860c5bc721e29a741 Author: Juzhe-Zhong Date: Thu No

[Bug target/112670] RISC-V: Run fail on pr65518.c with -flto

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112670 JuzheZhong changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug tree-optimization/112678] New: Massive slowdown of compilation time with PGO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112678 Bug ID: 112678 Summary: Massive slowdown of compilation time with PGO Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: compile-time-hog Severity: normal

[Bug tree-optimization/110279] [14 Regression] Regressions on aarch64 cause by handing FMA in reassoc (510.parest_r, 508.namd_r)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110279 --- Comment #2 from CVS Commits --- The master branch has been updated by Di Zhao : https://gcc.gnu.org/g:746344dd53807d840c29f52adba10d0ab093bd3d commit r14-5779-g746344dd53807d840c29f52adba10d0ab093bd3d Author: Di Zhao Date: Thu Nov 9 15:

[Bug middle-end/112679] New: ICE in expand_float, at optabs.cc:5724 with bitint

t/GCC/master/gcc/cfgexpand.cc:6835 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER

[Bug target/112676] [14 regression] ICE in extract_insn, at recog.cc:2804

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112676 --- Comment #1 from Manuel Lauss --- Created attachment 56671 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56671&action=edit another testcase Another testcase, one of a few from virtualbox: g++ -O2 -march=znver4 -mtune=znver4 -mno-avx

[Bug tree-optimization/112678] [14 regression] Massive slowdown of compilation time with PGO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112678 Sam James changed: What|Removed |Added Target Milestone|--- |14.0

[Bug c++/112680] New: g++-13 segfault on std::regex_match with c++11 or above -O2 and lto

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112680 Bug ID: 112680 Summary: g++-13 segfault on std::regex_match with c++11 or above -O2 and lto Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/112678] [14 regression] Massive slowdown of compilation time with PGO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112678 Richard Biener changed: What|Removed |Added CC||rguenth at gcc dot gnu.org,

[Bug target/112681] New: [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp()

th-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r14-5779-20231123205631-g746344dd538-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231123 (experimental) (GCC)

[Bug libstdc++/112682] New: More efficient std::basic_string move construction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112682 Bug ID: 112682 Summary: More efficient std::basic_string move construction Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug libstdc++/111641] FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++23 execution test

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111641 Rainer Orth changed: What|Removed |Added Host|hppa*-*-linux* |hppa*-*-linux*, |

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #36 from Rich Felker --- > the assembly generated by the current implementations already supports that > case. Our memcpy is not written in asm but in C, and it has the restrict qualifier on src and dest. This entitles a compiler to

[Bug libstdc++/112569] libstdc++-v3/include/ranges:1456: missing check for self-assignment

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112569 TC changed: What|Removed |Added CC||rs2740 at gmail dot com --- Comment #1 from TC --

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #37 from Rich Felker --- Also: has anyone even looked at what happens if a C memcpy with proper use of restrict gets LTO-inlined into a caller with GCC-generated memcpy calll where src==dest? That sounds like a case likely to blow up.

[Bug libstdc++/112593] FAIL: 26_numerics/headers/cmath/equivalent_functions.cc on Solaris

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112593 Rainer Orth changed: What|Removed |Added Summary|FAIL: |FAIL: |26_numerics/head

[Bug target/112681] [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp()

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112681 Richard Biener changed: What|Removed |Added Target Milestone|--- |14.0

[Bug libstdc++/111948] subrange modifies a const size object

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111948 Jonathan Wakely changed: What|Removed |Added Depends on||112439 Assignee|unassigned

[Bug tree-optimization/112683] New: Optimizing memcpy range by extending to word bounds

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112683 Bug ID: 112683 Summary: Optimizing memcpy range by extending to word bounds Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: normal

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #38 from Tim Ruffing --- (In reply to Rich Felker from comment #36) > If you're happy with a branch, you could probably take restrict off the > arguments and do something like: > > if (src==dest) return; > const char *restrict src2 =

[Bug libstdc++/112593] FAIL: 26_numerics/headers/cmath/equivalent_functions.cc on Solaris

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112593 Jonathan Wakely changed: What|Removed |Added Last reconfirmed||2023-11-23 Ever confirmed|0

[Bug tree-optimization/112678] [14 regression] Massive slowdown of compilation time with PGO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112678 --- Comment #2 from Jan Hubicka --- Seems we changed default to locking increments. jh@ryzen4:/tmp> cat t.C void test() { } jh@ryzen4:/tmp> ~/trunk-install/bin/g++ -O2 -fprofile-generate t.C -S ; grep lock t.s lock addl $1, __gcov

[Bug tree-optimization/112678] [14 regression] Massive slowdown of compilation time with PGO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112678 --- Comment #3 from CVS Commits --- The master branch has been updated by Sebastian Huber : https://gcc.gnu.org/g:8674d70ce37ca3249a641fb418c6849d4f95f348 commit r14-5783-g8674d70ce37ca3249a641fb418c6849d4f95f348 Author: Sebastian Huber Date:

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #39 from Tim Ruffing --- (In reply to Rich Felker from comment #36) > Our memcpy is not written in asm but in C, and it has the restrict qualifier > on src and dest. For my curiosity, can you point me to this implementation? I coul

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #40 from Sam James --- https://git.musl-libc.org/cgit/musl/tree/src/string/memcpy.c#n5

[Bug lto/112680] g++-13 segfault on std::regex_match with c++11 or above -O2 and lto

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112680 Jonathan Wakely changed: What|Removed |Added Ever confirmed|0 |1 Status|UNCONFIRMED

[Bug c++/112666] Missed optimization: Value initialization zero-initializes members with user-defined constructor

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112666 --- Comment #2 from Francisco Paisana --- Jonathan Wakely, thanks a lot for your clarification. I finally got it. In summary, we established that: 1. if a type T (in my case C) has no user-defined ctor, it will be zero-initialized. 2. and for

[Bug c++/112680] g++-13 segfault on std::regex_match with c++11 or above -O2 and lto

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112680 Jonathan Wakely changed: What|Removed |Added Component|lto |c++ --- Comment #1 from Jonathan Wake

[Bug c++/112680] g++-13 segfault on std::regex_match with c++11 or above -O2 and lto

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112680 Jonathan Wakely changed: What|Removed |Added Blocks||102445 --- Comment #2 from Jonathan W

[Bug c++/112666] Missed optimization: Value initialization zero-initializes members with user-defined constructor

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112666 Francisco Paisana changed: What|Removed |Added Resolution|--- |FIXED Status|UNCONFIRME

[Bug target/89316] ICE with -mforce-indirect-call and -fsplit-stack

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89316 --- Comment #15 from CVS Commits --- The master branch has been updated by Uros Bizjak : https://gcc.gnu.org/g:2f3f8952ff1736dd6a087ddb4106077db3502bb9 commit r14-5784-g2f3f8952ff1736dd6a087ddb4106077db3502bb9 Author: Uros Bizjak Date: Thu N

[Bug middle-end/112653] PTA should handle correctly escape information of values returned by a function

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112653 --- Comment #7 from Jan Hubicka --- Thanks for explanation. I think it is quite common pattern that new object is construted and worked on and later returned, so I think we ought to handle this correctly. Another example just came up in https:

[Bug target/112672] [14 Regression] wrong code with __builtin_parityl() at -O and above on x86_64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112672 --- Comment #5 from CVS Commits --- The master branch has been updated by Uros Bizjak : https://gcc.gnu.org/g:b2d17bdd45b582b93e89c00b04763a45f97d7a34 commit r14-5785-gb2d17bdd45b582b93e89c00b04763a45f97d7a34 Author: Uros Bizjak Date: Thu N

[Bug target/89316] ICE with -mforce-indirect-call and -fsplit-stack

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89316 Uroš Bizjak changed: What|Removed |Added Status|ASSIGNED|RESOLVED Target Milestone|---

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #41 from post+gcc at ralfj dot de --- > This entitles a compiler to emit asm equivalent to if (src==dest) system("rm > -rf /") if it likes. No it does not. restrict causes UB if the two pointers are used to access the same memory. It

[Bug c++/112666] Missed optimization: Value initialization zero-initializes members with user-defined constructor

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112666 --- Comment #4 from Francisco Paisana --- One last thing, I might have misread this as well. > "Zero-initialization is performed in the following situations: > ... > 2) As part of value-initialization sequence [...] for members of > value-init

[Bug c++/112666] Missed optimization: Value initialization zero-initializes members with user-defined constructor

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112666 --- Comment #5 from Jonathan Wakely --- (In reply to Francisco Paisana from comment #4) > One last thing, I might have misread this as well. > > > "Zero-initialization is performed in the following situations: > > ... > > 2) As part of value-i

[Bug middle-end/112679] ICE in expand_float, at optabs.cc:5724 with bitint

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112679 Jakub Jelinek changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Ever confirmed|0

[Bug c++/112666] Missed optimization: Value initialization zero-initializes members with user-defined constructor

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112666 Sam James changed: What|Removed |Added Resolution|FIXED |INVALID

[Bug libstdc++/112541] FAIL: 19_diagnostics/stacktrace/current.cc

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112541 Jonathan Wakely changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug libstdc++/111641] FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++23 execution test

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111641 Jonathan Wakely changed: What|Removed |Added CC||redi at gcc dot gnu.org --- Comment #

[Bug libstdc++/111641] FAIL: 19_diagnostics/stacktrace/current.cc -std=gnu++23 execution test

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111641 Jonathan Wakely changed: What|Removed |Added Host|hppa*-*-linux*, | |*-*-solaris2.11

[Bug tree-optimization/112673] [14 Regression] ICE verify_gimple failed since r14-5557-g6dd4c703be17fa

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112673 Jakub Jelinek changed: What|Removed |Added CC|jakub at redhat dot com|jakub at gcc dot gnu.org --- Com

[Bug tree-optimization/112673] [14 Regression] ICE verify_gimple failed since r14-5557-g6dd4c703be17fa

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112673 Jakub Jelinek changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed|

[Bug libstdc++/111055] [C++23] Implement P1206R7, Conversions from ranges to containers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111055 --- Comment #3 from CVS Commits --- The master branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:7a6a29c455e7755b501c0006e39beb4e56ec2729 commit r14-5794-g7a6a29c455e7755b501c0006e39beb4e56ec2729 Author: Jonathan Wakely Date:

[Bug libstdc++/111055] [C++23] Implement P1206R7, Conversions from ranges to containers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111055 Jonathan Wakely changed: What|Removed |Added Assignee|redi at gcc dot gnu.org|unassigned at gcc dot gnu.org

[Bug target/86776] Avr port needs updating for CVE-2017-5753

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86776 --- Comment #2 from CVS Commits --- The master branch has been updated by Georg-Johann Lay : https://gcc.gnu.org/g:9a3c40af7f7dd218cc2ebaa3a70f3317f7316ceb commit r14-5796-g9a3c40af7f7dd218cc2ebaa3a70f3317f7316ceb Author: Georg-Johann Lay Date

[Bug target/86776] Avr port needs updating for CVE-2017-5753

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86776 Georg-Johann Lay changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|---

[Bug target/86772] [meta-bug] tracking port status for CVE-2017-5753

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86772 Bug 86772 depends on bug 86776, which changed state. Bug 86776 Summary: Avr port needs updating for CVE-2017-5753 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86776 What|Removed |Added --

[Bug fortran/112609] [F2023] Restrictions on integer arguments to SYSTEM_CLOCK

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112609 --- Comment #2 from CVS Commits --- The master branch has been updated by Harald Anlauf : https://gcc.gnu.org/g:0c2ecfd4a29161d6c2bd3a83335387f42ff38ffe commit r14-5797-g0c2ecfd4a29161d6c2bd3a83335387f42ff38ffe Author: Harald Anlauf Date: W

[Bug fortran/104819] Reject NULL without MOLD as actual to an assumed-rank dummy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104819 --- Comment #8 from CVS Commits --- The master branch has been updated by Harald Anlauf : https://gcc.gnu.org/g:7646b5d88056cf269ff555afe95bc361dcf5e5c0 commit r14-5798-g7646b5d88056cf269ff555afe95bc361dcf5e5c0 Author: Harald Anlauf Date: W

[Bug target/112643] [14 regression] including x86intrin.h is broken for -march=native (which adds -mno-avx10.1-256 )

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112643 --- Comment #26 from anlauf at gcc dot gnu.org --- (In reply to Urs Janßen from comment #25) > (In reply to Haochen Jiang from comment #24) > > Patch aims to fix that: > > > > https://gcc.gnu.org/pipermail/gcc-patches/2023-November/637865.html >

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #42 from Rich Felker --- > I'm not saying that such an implementation will be a good idea, but just a > remark: You could, in fact, keep restrict for the arguments in this case, > because the object pointed to by src and dest is not

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #43 from post+gcc at ralfj dot de --- That is not my reading of the standard, but absent a proper (formal, mathematical) spec I guess it is hard to tell. With your reading, "if ((uintptr_t)src == 0x400400)" is UB, since changing the "

[Bug target/112681] [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp() since r14-5747

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112681 Jakub Jelinek changed: What|Removed |Added Ever confirmed|0 |1 Summary|[14 Regression] IC

[Bug target/112681] [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp() since r14-5747

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112681 --- Comment #2 from Jakub Jelinek --- Doesn't need the virtual method nor C++: struct S { void *c; char d[16]; } a, b; int foo (void) { return __builtin_memcmp (a.d, b.d, sizeof (a.d)) != 0; }

[Bug target/112676] [14 regression] ICE in extract_insn, at recog.cc:2804

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112676 --- Comment #2 from Manuel Lauss --- I think PR112681 is the same issue.

[Bug target/112676] [14 regression] ICE in extract_insn, at recog.cc:2804

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112676 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug target/112681] [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp() since r14-5747

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112681 Andrew Pinski changed: What|Removed |Added CC||manuel.lauss at googlemail dot com ---

[Bug target/112681] [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp() since r14-5747

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112681 --- Comment #4 from Jakub Jelinek --- Flags can be just -O2 -msse4.1 -mno-sse4.2 as well or even -O2 -msse4.2 -mno-avx. --- gcc/config/i386/i386-expand.cc.jj 2023-11-21 09:31:35.792395304 +0100 +++ gcc/config/i386/i386-expand.cc 2023-11-2

[Bug target/112681] [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp() since r14-5747

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112681 --- Comment #5 from Jakub Jelinek --- Or maybe better --- gcc/config/i386/i386-expand.cc.jj 2023-11-21 09:31:35.792395304 +0100 +++ gcc/config/i386/i386-expand.cc 2023-11-23 20:57:57.128721762 +0100 @@ -2453,7 +2453,8 @@ ix86_expand_branc

[Bug target/112681] [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp() since r14-5747

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112681 Jakub Jelinek changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned

[Bug target/112672] [14 Regression] wrong code with __builtin_parityl() at -O and above on x86_64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112672 --- Comment #6 from CVS Commits --- The releases/gcc-13 branch has been updated by Uros Bizjak : https://gcc.gnu.org/g:d035b57d51167af805ccc91ee0492c8b27e22184 commit r13-8092-gd035b57d51167af805ccc91ee0492c8b27e22184 Author: Uros Bizjak Date

[Bug other/112684] New: ICE: in main, at toplev.cc:2327 with -ftarget-help -fdiagnostics-generate-patch

nary-trunk-r14-5791-20231123115417-g24592abd68e-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231123 (experimental) (GCC)

[Bug middle-end/32667] block copy with exact overlap is expanded as memcpy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32667 --- Comment #44 from Rich Felker --- My naive expectation is that "if ((uintptr_t)src == 0x400400)" is and should be UB, but I may be misremembering the details of the formalism by which the spec for restrict is implemented. If so, that's kinda

[Bug target/112681] [14 Regression] ICE: in extract_insn, at recog.cc:2804 (unrecognizable insn) with -O2 -mfma -mno-sse4.2 and memcmp() since r14-5747

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112681 --- Comment #7 from Manuel Lauss --- (In reply to Jakub Jelinek from comment #6) > Created attachment 56676 [details] > gcc14-pr112681.patch > > Full untested patch. Fixes all ICEs I've seen today. Thank you!

[Bug fortran/112609] [F2023] Restrictions on integer arguments to SYSTEM_CLOCK

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112609 anlauf at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|

[Bug middle-end/112685] New: missed-optimization: division / modulo loops

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112685 Bug ID: 112685 Summary: missed-optimization: division / modulo loops Product: gcc Version: 13.2.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: m

[Bug middle-end/112685] missed-optimization: division / modulo loops

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112685 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement

[Bug middle-end/112685] missed-optimization: division / modulo loops

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112685 --- Comment #1 from Andrew Pinski --- I thought I had saw this a while back. Note the Linux kernel does this kind of loop explicity to avoid the division though as the cases where it does is known to be only a few iterations (1 or 2) to get the

[Bug fortran/111880] [11/12/13/14] False positive warning of obsolescent COMMON block with Fortran submodule

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111880 anlauf at gcc dot gnu.org changed: What|Removed |Added CC||anlauf at gcc dot gnu.org --

[Bug middle-end/112683] Optimizing memcpy range by extending to word bounds

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112683 Andrew Pinski changed: What|Removed |Added Component|target |middle-end --- Comment #1 from Andrew P

[Bug middle-end/112685] missed-optimization: division / modulo loops

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112685 --- Comment #2 from gooncreeper --- (In reply to Andrew Pinski from comment #1) > I thought I had saw this a while back. > > Note the Linux kernel does this kind of loop explicity to avoid the division > though as the cases where it does is kno

[Bug target/112686] New: [14 Regression] ICE: in gen_reg_rtx, at emit-rtl.cc:1176 with -fsplit-stack -mcmodel=large

//binary-trunk-r14-5791-20231123115417-g24592abd68e-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.0 20231123 (experimental) (GCC)

[Bug tree-optimization/112645] missed-optimization: cswitch optimization missed in nested if-statement

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112645 --- Comment #2 from gooncreeper --- I am going to move the second problem to it's own bug since I realize it actually quite a different problem, and deserves it's own thread of discussion.

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