[Bug ipa/81146] Wine 2.10 cannot be compiled with -flto

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81146 Artem S. Tashkinov changed: What|Removed |Added URL||https://bugs.winehq.org/sho

[Bug rtl-optimization/104663] New: A 50% C-Ray regression in GCC 12.0 for ADL at -O2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104663 Bug ID: 104663 Summary: A 50% C-Ray regression in GCC 12.0 for ADL at -O2 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component

[Bug target/104663] [12 Regression] C-ray 1.1 performance is 50% worse at -O2 in GCC 12 than before on alderlake

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104663 --- Comment #3 from Artem S. Tashkinov --- Also -O3 is 50% faster which sounds unreasonable. -O2 with GCC12 is 75% slower than -O3 for GCC 11.

[Bug target/105700] GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 Artem S. Tashkinov changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug c/105688] New: Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 Bug ID: 105688 Summary: Cannot build GCC 11.3 on Fedora 36 Product: gcc Version: 11.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c

[Bug c/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #1 from Artem S. Tashkinov --- In /tmp/OBJDIR/x86_64-pc-linux-gnu/libstdc++-v3/src/.libs I replaced the built libstdc++.so.29 _three times_ with the system one (libstdc++.so.30) and it all worked. Still this looks like a serious bug

[Bug c/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #2 from Artem S. Tashkinov --- This workaround of mine is not really good: after `make install` you end up with /opt/gcc/lib64/libstdc++.so.6.0.29 which is not GCC's but the system one (/usr/lib64/libstdc++.so.6.0.30.so).

[Bug c/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #4 from Artem S. Tashkinov --- (In reply to Andrew Pinski from comment #3) > How are you building gcc? > What configure options are being passed? > What make options are being passed? > Do you have any env variables set that might ef

[Bug c/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #5 from Artem S. Tashkinov --- Using the official tar.xz file of course, without any changes/modifications/patches.

[Bug bootstrap/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #10 from Artem S. Tashkinov --- (In reply to Andrew Pinski from comment #8) > Do you have the full log? The full build log? I can generate one right away. (In reply to Andrew Pinski from comment #9) > Also can you provide the full

[Bug c/105700] New: GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 Bug ID: 105700 Summary: GCC miscompiles? wine when using -march=pentium-m Product: gcc Version: 12.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Compone

[Bug target/105700] GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 --- Comment #1 from Artem S. Tashkinov --- If I enable core dump gdb rejects the resulting core file as invalid.

[Bug target/105700] GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 --- Comment #2 from Artem S. Tashkinov --- This bug doesn't require any extensive debugging. You just 1. wget https://dl.winehq.org/wine/source/7.x/wine-7.9.tar.xz 2. tar xf wine-7.9.tar.xz 3. cd wine-7.9 4. build using the instructions above

[Bug target/105700] GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 --- Comment #4 from Artem S. Tashkinov --- (In reply to Alexander Monakov from comment #3) > It seems you're already getting some good advice on the Wine Bugzilla > (thanks for linking it in the URL field). > > There should be a note in dmesg w

[Bug target/105700] GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 --- Comment #6 from Artem S. Tashkinov --- (In reply to Alexander Monakov from comment #5) > (In reply to Artem S. Tashkinov from comment #4) > > > There should be a note in dmesg when a process segfaults outside of a > > > debugger. If you run

[Bug target/105700] GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 --- Comment #8 from Artem S. Tashkinov --- (In reply to Richard Biener from comment #7) > It's only a guess but since GCC 12 we enable vectorization by default and > with wine and 32bit apps the stack might not be always aligned properly. So >

[Bug target/105700] GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 --- Comment #9 from Artem S. Tashkinov --- The crash is in ntdll.dll.so but that's a huge library: $ ls -la ntdll*so* -rwxr-xr-x. 1 root root 926240 May 23 09:42 ntdll.dll.so.o2 -rwxr-xr-x. 1 root root 950816 May 23 09:46 ntdll.dll.so.pentiumm

[Bug target/105700] GCC miscompiles? wine when using -march=pentium-m

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105700 --- Comment #10 from Artem S. Tashkinov --- I'm not a programmer at all (not to mention that I know nothing about CPU instruction set, assembler, etc.), debugging GCC (!) and Wine (!) libraries is quite complicated for me, so I have a strong des

[Bug bootstrap/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #11 from Artem S. Tashkinov --- Created attachment 53020 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53020&action=edit gcc-11.3.0.build.log.xz

[Bug bootstrap/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #14 from Artem S. Tashkinov --- Created attachment 53022 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53022&action=edit lddebug.tar.xz (In reply to Andrew Pinski from comment #13) > Can you run the following command: > > In

[Bug bootstrap/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #18 from Artem S. Tashkinov --- (In reply to Sam James from comment #17) > libtool recently got a new maintainer and had a new release (2.4.7). It's > possible 2.4.7 is related. Fedora 36 still features an old version: libtool-2.4.6

[Bug bootstrap/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #19 from Artem S. Tashkinov --- I'm curious: Fedora 36 takes probably half an hour to be downloaded and installed in a VM/chroot/etc., so you could probably debug the issue in a few minutes ;-)

[Bug bootstrap/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #25 from Artem S. Tashkinov --- (In reply to Jonathan Wakely from comment #22) > (In reply to Artem S. Tashkinov from comment #19) > > I'm curious: Fedora 36 takes probably half an hour to be downloaded and > > installed in a VM/chro

[Bug bootstrap/105688] Cannot build GCC 11.3 on Fedora 36

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #28 from Artem S. Tashkinov --- (In reply to Jonathan Wakely from comment #27) > (In reply to Artem S. Tashkinov from comment #25) > > Can you please try with the script I posted in comment #4? > > That works fine on F35 and F36. I

[Bug bootstrap/105688] GCC 11.3 doesn't build with the GNU gold linker (version 2.37-27.fc36) 1.16: libstdc++.so.6: version `GLIBCXX_3.4.30' not found

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 Artem S. Tashkinov changed: What|Removed |Added Summary|Cannot build GCC 11.3 on|GCC 11.3 doesn't build with

[Bug bootstrap/105688] GCC 11.3 doesn't build with the GNU gold linker (version 2.37-27.fc36) 1.16: libstdc++.so.6: version `GLIBCXX_3.4.30' not found

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #30 from Artem S. Tashkinov --- I'm not sure why certain headers file in the resulting build have changed: diff -urN gcc/lib/gcc/x86_64-pc-linux-gnu/11/include/omp.h gcc.123/lib/gcc/x86_64-pc-linux-gnu/11/include/omp.h --- gcc/lib/g

[Bug bootstrap/105688] GCC 11.3 doesn't build with the GNU gold linker (version 2.37-27.fc36) 1.16: libstdc++.so.6: version `GLIBCXX_3.4.30' not found

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #31 from Artem S. Tashkinov --- And one final tidbit, `make LD=ld.bfd install prefix=/tmp/GCC-11.3` fails: make[3]: Entering directory '/tmp/OBJDIR/libcc1' make[3]: Nothing to be done for 'install-exec-am'. /usr/bin/mkdir -p '/tmp/

[Bug bootstrap/105688] GCC 11.3 doesn't build with the GNU gold linker (version 2.37-27.fc36) 1.16: libstdc++.so.6: version `GLIBCXX_3.4.30' not found

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #40 from Artem S. Tashkinov --- (In reply to Vincent Lefèvre from comment #39) > (In reply to Jonathan Wakely from comment #38) > > (In reply to Vincent Lefèvre from comment #35) > > > (I reported it in 2012, with Jonathan Nieder's p

[Bug bootstrap/105688] GCC 11.3 doesn't build with the GNU gold linker (version 2.37-27.fc36) 1.16: libstdc++.so.6: version `GLIBCXX_3.4.30' not found

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105688 --- Comment #42 from Artem S. Tashkinov --- (In reply to Jonathan Wakely from comment #41) > (In reply to Artem S. Tashkinov from comment #31) > > And one final tidbit, `make LD=ld.bfd install prefix=/tmp/GCC-11.3` fails: > > Is this supposed t

[Bug tree-optimization/109811] New: libxjl 0.7 is a lot slower in GCC 13.1 vs Clang 16

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109811 Bug ID: 109811 Summary: libxjl 0.7 is a lot slower in GCC 13.1 vs Clang 16 Product: gcc Version: 13.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Compon

[Bug tree-optimization/109812] New: GraphicsMagick resize is a lot slower in GCC 13.1 vs Clang 16

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109812 Bug ID: 109812 Summary: GraphicsMagick resize is a lot slower in GCC 13.1 vs Clang 16 Product: gcc Version: 13.1.1 Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/109812] GraphicsMagick resize is a lot slower in GCC 13.1 vs Clang 16

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109812 --- Comment #1 from Artem S. Tashkinov --- Created attachment 55052 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55052&action=edit Graphs

[Bug target/109811] libxjl 0.7 is a lot slower in GCC 13.1 vs Clang 16

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109811 Artem S. Tashkinov changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug target/109812] GraphicsMagick resize is a lot slower in GCC 13.1 vs Clang 16

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109812 Artem S. Tashkinov changed: What|Removed |Added Resolution|--- |INVALID Status|WAITING

[Bug target/109812] GraphicsMagick resize is a lot slower in GCC 13.1 vs Clang 16

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109812 Artem S. Tashkinov changed: What|Removed |Added Keywords||missed-optimization St

[Bug target/109811] libjxl 0.7 is a lot slower in GCC 13.1 vs Clang 16

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109811 --- Comment #17 from Artem S. Tashkinov --- Terrific results, thanks a ton! Maybe this bug report could be closed now?

[Bug middle-end/78405] OpenSSL v1.0.1g RSA 4096 test is 20% slower under GCC 6.2 than under Clang 3.9

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78405 Artem S. Tashkinov changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug middle-end/79704] [meta-bug] Phoronix Test Suite compiler performance issues

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79704 Bug 79704 depends on bug 78405, which changed state. Bug 78405 Summary: OpenSSL v1.0.1g RSA 4096 test is 20% slower under GCC 6.2 than under Clang 3.9 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78405 What|Removed

[Bug rtl-optimization/113019] New: [NOT A BUG] Multi-architecture binaries for Linux

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113019 Bug ID: 113019 Summary: [NOT A BUG] Multi-architecture binaries for Linux Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Compon

[Bug rtl-optimization/113019] [NOT A BUG] Multi-architecture binaries for Linux

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113019 --- Comment #5 from Artem S. Tashkinov --- (In reply to ktkachov from comment #1) > GCC provides the Function Multiversioning feature that's supported on some > architectures: > https://gcc.gnu.org/onlinedocs/gcc/Function-Multiversioning.html >

[Bug rtl-optimization/113235] New: SMHasher SHA3-256 benchmark is almost 40% slower vs. Clang on AMD Zen 4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113235 Bug ID: 113235 Summary: SMHasher SHA3-256 benchmark is almost 40% slower vs. Clang on AMD Zen 4 Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal

[Bug rtl-optimization/113236] New: WebP benchmark is 20% slower vs. Clang on AMD Zen 4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113236 Bug ID: 113236 Summary: WebP benchmark is 20% slower vs. Clang on AMD Zen 4 Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Compone

[Bug target/113235] SMHasher SHA3-256 benchmark is almost 40% slower vs. Clang on AMD Zen 4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113235 --- Comment #1 from Artem S. Tashkinov --- Also valid for MTL: https://www.phoronix.com/review/intel-meteorlake-gcc-clang/2

[Bug target/113236] WebP benchmark is 20% slower vs. Clang on AMD Zen 4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113236 --- Comment #1 from Artem S. Tashkinov --- That's WebP image encode, Quality 100, highest compression. Also applies to MTL: https://www.phoronix.com/review/intel-meteorlake-gcc-clang/3