This passes all tests in the Android environment.

The performance after this change is slightly worse for 32 bit, but not by much. and a lot of time seems to be within the variance However, it dramatically reduces the RSS for dex2oat, where it's much closer to jemalloc. It also reduces some of the traces RSS, but not by a large margin.

The performance is about the same as previous and it does shave about 1MB to 2MB of RSS in many cases. It also decrease the camera process by about 2MB.

Update the mallopt and remove the ability to set the
primary and secondary differently.

Add static_casts where needed.

Created a min and max release to OS value for the allocators.

• Merge branch 'master' of https://github.com/llvm/llvm-project

I added a parameter to the primary and secondary, but I'm not sure when to set using the default. Right now, if the flag release_to_os_interval is set to -1, then it uses the default. I think that it would be better to have the default always override, but what do you think?

Changed this enough, so I'm abandoning this.

This fixes the build failure for me.

I do see RSS benefits in 32 bit, but the benefits are much larger in 64 bit runs. I see some performance fluctuations, but it looks like some got faster, some got slower, so probably in the noise.

Removed the minimum flags and create and Android specific mallopt setting.

Updated mallopt for android.

LGTM

I verified this fixes the case of building bionic on linux, and it also builds properly in the normal android build.

This isn't quite right for the way people expect this to compile, so abandon this change.