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Re: [lmi] 'zero_test.cpp' crashes clang++ with '-O2 -ffp-model=strict'
From: |
Vadim Zeitlin |
Subject: |
Re: [lmi] 'zero_test.cpp' crashes clang++ with '-O2 -ffp-model=strict' |
Date: |
Sat, 25 Jun 2022 23:37:50 +0200 |
On Sat, 25 Jun 2022 20:22:18 +0000 Greg Chicares <gchicares@sbcglobal.net>
wrote:
GC> [effective workaround given below]
GC>
GC> Using...
GC>
GC> $ clang++ --version
GC> Debian clang version 13.0.1-6
GC> Target: x86_64-pc-linux-gnu
GC> Thread model: posix
GC> InstalledDir: /usr/bin
GC>
GC> ...this crashes clang++:
GC>
GC> $ clang++ -c -I . -fPIC -ffp-model=strict -std=c++20 -O2
-Wno-string-plus-int zero_test.cpp -ozero_test.o 2>&1 |less -S
FWIW this exact command line works for me with Debian clang version
14.0.5-1 from Debian experimental, even though I can confirm that it exits
with an internal compiler error when using clang version from above, so it
looks like this is "just" a compiler bug and has been already fixed.
Regards,
VZ
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