Ticket #2018 (closed todo: fixed)

Opened 6 years ago

Last modified 6 years ago

Improve pmc2c to support :manual_wb flag.

Reported by: bacek Owned by:
Priority: normal Milestone:
Component: none Version: 3.1.0
Severity: medium Keywords:
Cc: Language:
Patch status: Platform:



Currently pmc2c in gen_gc branch generates automatic write barriers for:

1. VTABLEs marked with :write pragma. 2. All METHODS.

It's quite suboptimal. For example FIA.set_foo_keyed_int shouldn't trigger WB. And many of METHODs aren't mutating state of PMC.

To improve it we have to suppress generation of write barriers when pragma :manual_wb is specified.

-- Bacek

Change History

Changed 6 years ago by bacek


gen_gc branch now have support for :manual_wb on VTABLEs. FIA is sample how it's can be used.

-- Bacek

Changed 6 years ago by cotto

Awesome. Once it's documented and the branch is merged into master, we can close this ticket.

Changed 6 years ago by bacek

Not so fast. Support for METHODs isn't there yet :)

Changed 6 years ago by Vasily Chekalkin

  • status changed from new to closed
  • resolution set to fixed

Implement :manual_wb for METHODs. Closes #2018.

Changeset: db775476eaeed3a3be00ba5f4efd7d15e06c1155

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