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| From: | Dmitri A. Sergatskov |
| Subject: | [Octave-bug-tracker] [bug #60527] Warnings during compilation and test errors with gcc 11 |
| Date: | Thu, 6 May 2021 08:59:44 -0400 (EDT) |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0 |
Follow-up Comment #10, bug #60527 (project octave):
The only other issue with gcc11/clang12 I noticed is that at higher
optimization level (-O3) on modern cpus (with avx2 instructions) we get more
precision-related failures.
Asa result, besides failing tests, some iterative solvers take much longer
time to converge.
To me, those look like compiler bugs (they do not truncate intermediate
results of avx operations?).
Dmitri.
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