[Bug 242067] libc: r354823 riscv64 has a fault in printf() where IEEE754-2008 fp128 data is output wrong

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Jun 23 20:38:38 UTC 2020


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242067

Mitchell Horne <mhorne at freebsd.org> changed:

           What    |Removed                     |Added
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             Status|Open                        |In Progress

--- Comment #8 from Mitchell Horne <mhorne at freebsd.org> ---
Hi Dennis,

Thanks for the detailed report. I was finally able to find the source of the
issue: GCC used to generate 64-bit long doubles and the workaround for that was
still enabled.

I've posted a patch addressing the issue here:
https://reviews.freebsd.org/D25420

The test program gives the expected output for me, but if you'd like to verify
the fix at well it would be helpful.

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