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Update comments re GCC bugs 117423 and 119085

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Paul Eggert 2025-08-20 15:33:49 -07:00
parent 6eb6ef3d0c
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configure.ac
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@ -2232,9 +2232,9 @@ AC_CACHE_CHECK([for flag to work around GCC union bugs],
[/* Work around GCC bugs 117423 and 119085 re holes in unions:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117423
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119085
These are fixed in GCC 15.2.
These are fixed in GCC 14.4 and 15.2.
Working wround them also works around GCC bug 58416
Working around them also works around GCC bug 58416
with double in unions on x86, where the generated insns
copy non-floating-point data via fldl/fstpl instruction pairs.
This can misbehave if the data's bit pattern looks like a NaN.