tree 8037d97ff929047f99995e68d486aecbdfa743a5
parent f205292227abb41a9a6d0f5e174c7860be2eabee
author Martin Kustermann <kustermann@google.com> 1544803913 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1544803913 +0000

[VM] Bare instructions - Part 5: Get rid of CODE_REG indirection in SwitchableCalls

If the --use-bare-instructions flag is enabled we will:

  * Make call sites load the target directly from the pool (instead of
    the code object) - this saves one instruction (and an indirect load)

  * Ensure the object pool will have direct entry addresses by:

     - Letting the clustered snapshot reader change any StubCode::UnlinkedCall()
       in the object pool by it's monomorphic entry
     - Change the code patcher to patch SwitchableCalls by writing the
       monomorphic entry into the pool (instead of the code object)

Issue https://github.com/dart-lang/sdk/issues/33274

Change-Id: I4e41fc8e4461bde477cc559a6a4fccaaf3a350b5
Reviewed-on: https://dart-review.googlesource.com/c/86160
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>