Summary:
The option allows to disable specific target library builtin functions,
instead of -disable-simplify-libcalls, which disables all of them.
This is a prerequisite for D70143, which fixes PR43081.
Reviewers: xbolva00, spatel, jdoerfert, efriedma
Reviewed By: efriedma
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70193
Dimitry Andric