SuccessChanges

Summary

  1. [libc] Add implementations of nextafter[f|l] functions. (details)
Commit 7f7b0dc4e15fac5f91f8f6dcc7f91c9025f41ae0 by sivachandra
[libc] Add implementations of nextafter[f|l] functions.

A differential fuzzer for these functions has also been added.
Along the way, a small correction has been done to the normal/subnormal
limits of x86 long double values.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D94109
The file was addedlibc/src/math/nextafter.cpp
The file was modifiedlibc/utils/FPUtil/ManipulationFunctions.h
The file was modifiedlibc/spec/stdc.td
The file was addedlibc/src/math/nextafterf.h
The file was modifiedlibc/config/linux/x86_64/entrypoints.txt
The file was addedlibc/test/src/math/nextafterf_test.cpp
The file was addedlibc/src/math/nextafterl.h
The file was addedlibc/fuzzing/math/nextafter_differential_fuzz.cpp
The file was modifiedlibc/src/math/CMakeLists.txt
The file was addedlibc/test/src/math/NextAfterTest.h
The file was modifiedlibc/config/linux/aarch64/entrypoints.txt
The file was modifiedlibc/utils/FPUtil/LongDoubleBitsX86.h
The file was modifiedlibc/fuzzing/math/Compare.h
The file was addedlibc/test/src/math/nextafterl_test.cpp
The file was addedlibc/test/src/math/nextafter_test.cpp
The file was addedlibc/src/math/nextafterf.cpp
The file was addedlibc/utils/FPUtil/NextAfterLongDoubleX86.h
The file was addedlibc/src/math/nextafter.h
The file was modifiedlibc/test/src/math/CMakeLists.txt
The file was addedlibc/src/math/nextafterl.cpp
The file was modifiedlibc/fuzzing/math/CMakeLists.txt