paul99/v8m-rb — comment on commit 6230c5c57c4d81f159f7e43bcb05a3e2f4270d47
File: src/mips/code-stubs-mips.cc line 4081
By kalmard:

There is a new function that does this, InitializeRootRegister().
Also, if this is present here, shouldn't it be removed from builtins-mips.cc?
Also we started using kRootRegister instead of s6, although this is not really consistent in the mips codebase yet at the moment.