• Austin Clements's avatar
    runtime: remove legacy eager write barrier · 20101894
    Austin Clements authored
    Now that the buffered write barrier is implemented for all
    architectures, we can remove the old eager write barrier
    implementation. This CL removes the implementation from the runtime,
    support in the compiler for calling it, and updates some compiler
    tests that relied on the old eager barrier support. It also makes sure
    that all of the useful comments from the old write barrier
    implementation still have a place to live.
    
    Fixes #22460.
    
    Updates #21640 since this fixes the layering concerns of the write
    barrier (but not the other things in that issue).
    
    Change-Id: I580f93c152e89607e0a72fe43370237ba97bae74
    Reviewed-on: https://go-review.googlesource.com/92705
    Run-TryBot: Austin Clements <austin@google.com>
    Reviewed-by: 's avatarRick Hudson <rlh@golang.org>
    TryBot-Result: Gobot Gobot <gobot@golang.org>
    20101894
asm_amd64.s 54.5 KB