[Bug target/117955] New: [15 Regression] GCC generate illegal riscv instruction `vsetvli zero,zero,e64,mf4,ta,ma` with -O2 and -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117955 Bug ID: 117955 Summary: [15 Regression] GCC generate illegal riscv instruction `vsetvli zero,zero,e64,mf4,ta,ma` with -O2 and -O3 Product: gcc Version: 15.0 Status: UNCO

[Bug tree-optimization/117954] [15 Regression] gcc.dg/tree-ssa/pr111456-1.c FAILs for non-LOGICAL_OP_NON_SHORT_CIRCUIT after r15-5646-gd1cf0d7a0f27fd

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117954 --- Comment #2 from Andrew Pinski --- Looking into this further. It looks like if ifcombine was after thread1, then pre would have caught it. Note r15-5022-gadd4bb94459d6c and related patches I did were designed to fix the issue when `--param l

[Bug tree-optimization/117954] [15 Regression] gcc.dg/tree-ssa/pr111456-1.c FAILs for non-LOGICAL_OP_NON_SHORT_CIRCUIT after r15-5646-gd1cf0d7a0f27fd

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117954 Andrew Pinski changed: What|Removed |Added Last reconfirmed||2024-12-08 Target Milestone|---

[Bug tree-optimization/117954] New: [15 Regression] gcc.dg/tree-ssa/pr111456-1.c FAILs for non-LOGICAL_OP_NON_SHORT_CIRCUIT after r15-5646-gd1cf0d7a0f27fd

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117954 Bug ID: 117954 Summary: [15 Regression] gcc.dg/tree-ssa/pr111456-1.c FAILs for non-LOGICAL_OP_NON_SHORT_CIRCUIT after r15-5646-gd1cf0d7a0f27fd Product: gcc Versi

[Bug target/117953] New: [15 Regression] GCC miscompile rvv intrinsics at `-O2` and `-O3`, missing `csrwi` to modify `vxrm`

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117953 Bug ID: 117953 Summary: [15 Regression] GCC miscompile rvv intrinsics at `-O2` and `-O3`, missing `csrwi` to modify `vxrm` Product: gcc Version: 15.0 Status: UNCONFIRMED

[Bug target/117938] [15 Regression] wrong code with -O2 --param=max-cse-insns=1 with late-combine (since r15-1735-ge62ea4fb8ffcab)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117938 --- Comment #2 from Andrew Pinski --- I don't see anything that late combine would do that would be wrong.

[Bug target/117952] host_detect_local_cpu returns NULL when built with Clang

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117952 --- Comment #3 from Sam James --- (Thank you!)

[Bug target/117952] host_detect_local_cpu returns NULL when built with Clang

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117952 --- Comment #2 from Andrew Pinski --- "Currently, we use %rbx as REAL_PIC_OFFSET_TABLE_REGNUM on x86_64." That changed in GCC 5 and that is the point there. So -mcpu=native will only fails with stage1 but will work with stage 2/3. This means t

[Bug target/117952] host_detect_local_cpu returns NULL when built with Clang

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117952 --- Comment #1 from Andrew Pinski --- +/* If we are compiling with GCC where %EBX register is fixed, then the + driver will just ignore -march and -mtune "native" target and will leave + to the newly built compiler to generate code for its d

[Bug target/117952] New: host_detect_local_cpu returns NULL when built with Clang

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117952 Bug ID: 117952 Summary: host_detect_local_cpu returns NULL when built with Clang Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal Prio

[Bug tree-optimization/117935] [14/15 Regression] [[likely]] attribute is lost by phiopt1 in some cases since r14-203-ga2339e0fe9dbef

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117935 Andrew Pinski changed: What|Removed |Added Known to work||13.3.0 Summary|[[likely]] at

[Bug tree-optimization/117935] [[likely]] attribute is lost by phiopt1 in some cases

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117935 --- Comment #3 from Andrew Pinski --- Created attachment 59817 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59817&action=edit Something like this I have not tested this nor compiled it so there might be some typos in it. But I wanted to

[Bug tree-optimization/117935] [[likely]] attribute is lost by phiopt1 in some cases

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117935 Andrew Pinski changed: What|Removed |Added Summary|[[likely]] attribute not|[[likely]] attribute is

[Bug c++/77958] printf format checking -vs- variadic template functions

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77958 --- Comment #6 from Sam James --- This came up when earlier we couldn't build LLVM's liboffload with GCC and it turns out that Clang supports this variant of gnu::format (https://github.com/llvm/llvm-project/issues/119069).

[Bug rtl-optimization/117951] FAIL: 20_util/variant/run.cc -std=gnu++17 (test for excess errors)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117951 --- Comment #1 from John David Anglin --- Created attachment 59816 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59816&action=edit Reload RTL dump for function std::_UninitDestroyGuard

[Bug middle-end/77758] OpenMP sections: intermittent incorrect behavior in reduction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77758 --- Comment #1 from Sam James --- I see the same behaviour on trunk but I'm not familiar enough with OpenMP to confirm it.

[Bug rtl-optimization/117951] New: FAIL: 20_util/variant/run.cc -std=gnu++17 (test for excess errors)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117951 Bug ID: 117951 Summary: FAIL: 20_util/variant/run.cc -std=gnu++17 (test for excess errors) Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/117949] GCC fails to produce edsp vector add instruction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117949 Andrew Pinski changed: What|Removed |Added Ever confirmed|0 |1 Last reconfirmed|

[Bug tree-optimization/117950] New: vector extraction view convert not detected

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117950 Bug ID: 117950 Summary: vector extraction view convert not detected Product: gcc Version: 15.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement

[Bug middle-end/117949] GCC fails to produce edsp vector add instruction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117949 --- Comment #4 from Andrew Pinski --- Created attachment 59814 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59814&action=edit Second testcase

[Bug c/112840] feature request: warn on incorrect tagged union value access

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112840 Eric Gallager changed: What|Removed |Added CC||egallager at gcc dot gnu.org --- Commen

[Bug objc++/61759] [ICE] [objc++] reaching gcc_unreachable in objc_eh_runtime_type at objc/objc-next-runtime-abi-01.c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61759 --- Comment #19 from Eric Gallager --- (In reply to Sergey Fedorov from comment #18) > This is the same bug? > > ``` > during GIMPLE pass: eh > /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_aqua_barrier/barrier/ > work/barrier-2.4.0/src

[Bug c++/77958] printf format checking -vs- variadic template functions

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77958 Sam James changed: What|Removed |Added See Also||https://github.com/llvm/llv

[Bug middle-end/117949] GCC fails to produce edsp vector add instruction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117949 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement

[Bug target/117949] GCC fails to produce edsp vector add instruction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117949 --- Comment #2 from Andrew Pinski --- Created attachment 59813 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59813&action=edit testcase Next time please attach or place inline your testcase rather than just linking against godbolt.

[Bug target/117949] GCC fails to produce edsp vector add instruction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117949 Andrew Pinski changed: What|Removed |Added URL|https://godbolt.org/z/Y7EfY | |Yb5Y

[Bug c++/77958] printf format checking -vs- variadic template functions

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77958 Arsen Arsenović changed: What|Removed |Added CC||arsen at gcc dot gnu.org --- Comment #

[Bug modula2/117948] Forward procedure declaration should only be available in ISO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117948 Gaius Mulley changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug c/115424] 'auto' type inference not working when struct declared in rhs, even when the final type is not anonymous

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115424 uecker at gcc dot gnu.org changed: What|Removed |Added CC||uecker at gcc dot gnu.org --

[Bug modula2/117948] Forward procedure declaration should only be available in ISO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117948 --- Comment #4 from GCC Commits --- The releases/gcc-14 branch has been updated by Gaius Mulley : https://gcc.gnu.org/g:6385000d36a8b0b9dce0b8dc92e101dfcc584ec5 commit r14-11071-g6385000d36a8b0b9dce0b8dc92e101dfcc584ec5 Author: Gaius Mulley D

[Bug c/116194] enhancement: attribute to protect tagged unions

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116194 uecker at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|

[Bug c/112840] feature request: warn on incorrect tagged union value access

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112840 --- Comment #4 from uecker at gcc dot gnu.org --- *** Bug 116194 has been marked as a duplicate of this bug. ***

[Bug rtl-optimization/117248] gcc/libgcc/libgcc2.h:232:25: internal compiler error: Arithmetic exception

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117248 --- Comment #16 from John David Anglin --- Things are improved but a similar error occurs in the second umod:SI call in /testsuite/gcc.c-torture/execute/arith-rand-ll.c: (insn 339 337 341 31 (parallel [ (set (reg:SI 29 %r29)

[Bug modula2/117948] Forward procedure declaration should only be available in ISO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117948 --- Comment #3 from GCC Commits --- The master branch has been updated by Gaius Mulley : https://gcc.gnu.org/g:41800372146f5ad15a8796b37f54965f78cc14fb commit r15-6011-g41800372146f5ad15a8796b37f54965f78cc14fb Author: Gaius Mulley Date: Sat

[Bug target/117926] [14 Regression] emits 3dnow (MMX) instruction from autovectorized GIMPLE without emms at -O2 since r14-2786-gade30fad6669e5

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117926 --- Comment #10 from Sam James --- Many thanks to you as well Uros for the quick fix. I'll try it out on FF over the weekend.

[Bug modula2/117948] Forward procedure declaration should only be available in ISO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117948 --- Comment #2 from Gaius Mulley --- Created attachment 59812 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59812&action=edit Proposed fix

[Bug modula2/117948] Forward procedure declaration should only be available in ISO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117948 Gaius Mulley changed: What|Removed |Added Last reconfirmed||2024-12-07 Status|UNCONFIRME

[Bug tree-optimization/117949] GCC fails to produce edsp vector add instruction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117949 --- Comment #1 from uis --- s/can/should be able to/

[Bug tree-optimization/117949] New: GCC fails to produce edsp vector add instruction

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117949 Bug ID: 117949 Summary: GCC fails to produce edsp vector add instruction Product: gcc Version: 15.0 URL: https://godbolt.org/z/Y7EfYYb5Y Status: UNCONFIRMED Severit

[Bug modula2/117948] New: Forward procedure declaration should only be available in ISO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117948 Bug ID: 117948 Summary: Forward procedure declaration should only be available in ISO Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal

[Bug objc++/61759] [ICE] [objc++] reaching gcc_unreachable in objc_eh_runtime_type at objc/objc-next-runtime-abi-01.c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61759 --- Comment #18 from Sergey Fedorov --- This is the same bug? ``` during GIMPLE pass: eh /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_aqua_barrier/barrier/work/barrier-2.4.0/src/lib/platform/OSXClipboard.cpp: In member function 'virtua

[Bug target/117947] New: [14/15 Regression] GCC miscompile rvv intrinsics at `-O2` and `-O3`, use `vlenb` after an inappropriate `vsetvli`

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117947 Bug ID: 117947 Summary: [14/15 Regression] GCC miscompile rvv intrinsics at `-O2` and `-O3`, use `vlenb` after an inappropriate `vsetvli` Product: gcc Version: 1

[Bug target/117930] Improve rotates by C - x or C + x where C is multiple of bitsize on x86

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117930 --- Comment #3 from GCC Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:4abcf4ad38a4081f02ed09aed7892a3a6af61cbb commit r15-6010-g4abcf4ad38a4081f02ed09aed7892a3a6af61cbb Author: Jakub Jelinek Date: S

[Bug libstdc++/102259] ifstream::read(…, count) fails when count >= 2^31 on darwin

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102259 --- Comment #11 from Michel Morin --- Brilliant, I appreciate it! I tested with an 8 GB file and confirmed that this fixes the issue on both Intel and Apple silicon Macs.

[Bug libstdc++/117560] std::views::zip incompatible with std::filesystem::directory_iterator & std::views::transform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117560 Jonathan Wakely changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug libstdc++/114394] std::bind uses std::result_of which is deprecated

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114394 Jonathan Wakely changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|---

[Bug libstdc++/117822] [C++23] basic_stacktrace allocator-extended move constructor uses _Allocator instead of _AllocTraits

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117822 --- Comment #5 from GCC Commits --- The releases/gcc-13 branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:b83a69906cafbe6b2164cc274f390afdd0f600f4 commit r13-9240-gb83a69906cafbe6b2164cc274f390afdd0f600f4 Author: Jonathan Wake

[Bug libstdc++/117560] std::views::zip incompatible with std::filesystem::directory_iterator & std::views::transform

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117560 --- Comment #6 from GCC Commits --- The releases/gcc-13 branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:59ce01a4d20c5dbf5b6ebde88c9d6dcd4588b114 commit r13-9235-g59ce01a4d20c5dbf5b6ebde88c9d6dcd4588b114 Author: Jonathan Wake

[Bug libstdc++/114394] std::bind uses std::result_of which is deprecated

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114394 --- Comment #6 from GCC Commits --- The releases/gcc-13 branch has been updated by Jonathan Wakely : https://gcc.gnu.org/g:359917755997a96f00c5bafa3a678f5545f1d03d commit r13-9234-g359917755997a96f00c5bafa3a678f5545f1d03d Author: Jonathan Wake

[Bug rtl-optimization/116778] [lra][avr] Wrong code with -mlra (bitfld-lra.c)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116778 Denis Chertykov changed: What|Removed |Added Status|NEW |WAITING

[Bug rtl-optimization/116778] [lra][avr] Wrong code with -mlra (bitfld-lra.c)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116778 --- Comment #7 from Denis Chertykov --- Committed a partial solution. https://gcc.gnu.org/pipermail/gcc-patches/2024-December/671030.html

[Bug rtl-optimization/116778] [lra][avr] Wrong code with -mlra (bitfld-lra.c)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116778 --- Comment #6 from GCC Commits --- The master branch has been updated by Denis Chertykov : https://gcc.gnu.org/g:279b3c71702de150eade19635bdbd26ba440b8eb commit r15-6008-g279b3c71702de150eade19635bdbd26ba440b8eb Author: Denis Chertykov Date:

[Bug target/117946] ICE: maximum number of generated reload insns per insn achieved (90) with -O -favoid-store-forwarding -mavx10.1 -mprefer-avx128 --param=store-forwarding-max-distance=128

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117946 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever confirmed|0

[Bug target/117930] Improve rotates by C - x or C + x where C is multiple of bitsize on x86

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117930 --- Comment #2 from Uroš Bizjak --- Comment on attachment 59799 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59799 gcc15-pr117930.patch >+;; Other rotate. >+(define_code_attr orotate [(rotate "rotatert") (rotatert "rotate")]) Can we us

[Bug target/117946] ICE: maximum number of generated reload insns per insn achieved (90) with -O -favoid-store-forwarding -mavx10.1 -mprefer-avx128 --param=store-forwarding-max-distance=128

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117946 --- Comment #1 from Andrew Pinski --- (insn 207 209 206 2 (set (reg:TI 189) (subreg:TI (reg:SI 208) 0)) "/app/example.cpp":12:3 discrim 1 94 {*movti_internal} (expr_list:REG_DEAD (reg:SI 208) (nil))) Is the insn that is ha

[Bug target/117946] New: ICE: maximum number of generated reload insns per insn achieved (90) with -O -favoid-store-forwarding -mavx10.1 -mprefer-avx128 --param=store-forwarding-max-distance=128

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117946 Bug ID: 117946 Summary: ICE: maximum number of generated reload insns per insn achieved (90) with -O -favoid-store-forwarding -mavx10.1 -mprefer-avx128 --param=sto