tree 58d144157b7a24bbdf7f8892631a15abeefa2c9f
parent 2eb5168bd9e43b80452eaee5be32c063e124886e
author Serban Constantinescu <serban.constantinescu@arm.com> 1424638293 +0000
committer Serban Constantinescu <serban.constantinescu@arm.com> 1425305816 +0000

Opt Compiler: ARM64: Enable explicit memory barriers over acquire/release

Implement remaining explicit memory barrier code paths and temporarily
enable the use of explicit memory barriers for testing.

This CL also enables the use of instruction set features in the ARM64
backend. kUseAcquireRelease has been replaced with PreferAcquireRelease(),
which for now is statically set to false (prefer explicit memory barriers).

Please note that we still prefer acquire-release for the ARM64 Optimizing
Compiler, but we would like to exercise the explicit memory barrier code
path too.

Change-Id: I84e047ecd43b6fbefc5b82cf532e3f5c59076458
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>