https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
Tamar Christina changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #16 from GCC Commits ---
The master branch has been updated by Tamar Christina :
https://gcc.gnu.org/g:28310b3ff84616cea242cb4cef8f16b4538dbd22
commit r16-2633-g28310b3ff84616cea242cb4cef8f16b4538dbd22
Author: Pengfei Li
Date: W
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #15 from Pengfei Li ---
(In reply to Sam James from comment #14)
> (In reply to Pengfei Li from comment #13)
> > https://gcc.gnu.org/pipermail/gcc-patches/2025-July/690065.html
>
> No issues reported with the two patches applied eit
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #14 from Sam James ---
(In reply to Pengfei Li from comment #13)
> https://gcc.gnu.org/pipermail/gcc-patches/2025-July/690065.html
No issues reported with the two patches applied either.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #13 from Pengfei Li ---
https://gcc.gnu.org/pipermail/gcc-patches/2025-July/690065.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
Sam James changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned at g
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #11 from Pengfei Li ---
Hi Sam, Following your steps, so far I’ve identified two different issues.
- One is related to my previous patch. [This bug]
- The other appears to be an existing issue in GCC 15. [PR121190]
I’ve just filed
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
Sam James changed:
What|Removed |Added
Last reconfirmed||2025-07-20
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #10 from Pengfei Li ---
(In reply to Sam James from comment #9)
> (In reply to Sam James from comment #8)
>
> FWIW, I've checked that this reproduces it in a Debian stable container too
> (i.e. there's nothing special that the stage
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #9 from Sam James ---
(In reply to Sam James from comment #8)
FWIW, I've checked that this reproduces it in a Debian stable container too
(i.e. there's nothing special that the stage1 gcc-trunk/g++-trunk that CC/CXX
should point to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #8 from Sam James ---
(In reply to Pengfei Li from comment #7)
> Hi Sam, sorry about the issue. I just followed your build steps (make
> command revised) but didn't reproduce it. I also tried valgrind but it
> exited with no error. I
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #7 from Pengfei Li ---
Hi Sam, sorry about the issue. I just followed your build steps (make command
revised) but didn't reproduce it. I also tried valgrind but it exited with no
error. I was trying on an Intel CPU with avx512. Could
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
Richard Biener changed:
What|Removed |Added
Target||x86_64-*-*
Priority|P3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
Sam James changed:
What|Removed |Added
Keywords|needs-bisection |
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #5 from Sam James ---
(In reply to Sam James from comment #0)
> $ make -j$(nproc) -l$(nproc)
This should read:
$ make -j$(nproc) -l$(nproc) STAGE1_C{,XX}FLAGS="-O3 -march=znver2 -ggdb3"
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #4 from Sam James ---
I'll bisect it now, I won't have a chance to try reduce until the weekend.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #3 from Sam James ---
(In reply to Sam James from comment #2)
> Created attachment 61828 [details]
> genrecog.ii.xz
>
> genrecog.o itself is miscompiled.
$ g++ -std=c++14 -c -ggdb3 -o build/genrecog.o /tmp/genrecog.ii -O2
-fno-vect
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #2 from Sam James ---
Created attachment 61828
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61828&action=edit
genrecog.ii.xz
genrecog.o itself is miscompiled.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
Sam James changed:
What|Removed |Added
Component|c |tree-optimization
Target Milestone|---
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