Michael Jones 377b82a088 [libc] add exception to atof differential fuzz
The differential fuzzer for atof found a bug in glibc's handling of
hexadecimal rounding. Since we can't easily update glibc and we want to
avoid false positives when running the fuzzer, I've added an exception
to skip all hexadecimal subnormal cases.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D149359
2023-04-28 13:50:40 -07:00
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