[libc-dev] Adding the Arm optimized math routines to LLVM libc
Siva Chandra via libc-dev
libc-dev at lists.llvm.org
Thu Mar 12 14:10:03 PDT 2020
Krystof Beyls has recently uploaded a patch which contributes the Arm
optimized math routines (AOR) to LLVM libc: https://reviews.llvm.org/D75355.
To take this forward, I would like to propose the following sequence of
Step 1: Submit this patch as is .
Step 2: Add a step on the libc builders to run tests from the AOR directory
Step 3: Move the implementations from the AOR directory in parts over to
their right place in the LLVM-libc tree. This will have to be done in many
small patches which go through the normal code review process.
Step 4: Setup benchmarking and fuzzing infrastructure for the math
 - This will give up proper diffs to look at during code reviews et al.
 - The math functions in the AOR directory are built on a common
infrastructure residing within the AOR directory. As we move parts of AOR
to their right place, we will have to update/move this common
infrastructure. Hence, running the tests on the bots helps us ensure that
our changes do not break the parts which have not yet been moved to their
right place in the LLVM-libc tree.
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