[issue41323] Perform "peephole" optimization directly on control-flow graph.

Inada Naoki added the comment: New changeset 8a232c7b17a2e41ae14d8bb7937ddfea69301dce by Inada Naoki in branch 'master': bpo-41323: compiler: Reuse tuple in constant tuple folding (GH-25419) https://github.com/python/cpython/commit/8a232c7b17a2e41ae14d8bb7937ddfea69301dce --

[issue41323] Perform "peephole" optimization directly on control-flow graph.

Change by Inada Naoki : -- nosy: +methane nosy_count: 4.0 -> 5.0 pull_requests: +24150 pull_request: https://github.com/python/cpython/pull/25419 ___ Python tracker ___

[issue41323] Perform "peephole" optimization directly on control-flow graph.

Mark Shannon added the comment: New changeset 6e8128f02e1d36e38e5866f9dc36e051caa47bc9 by Mark Shannon in branch 'master': bpo-41323: Perform 'peephole' optimizations directly on the CFG. (GH-21517) https://github.com/python/cpython/commit/6e8128f02e1d36e38e5866f9dc36e051caa47bc9

[issue41323] Perform "peephole" optimization directly on control-flow graph.

Change by Mark Shannon : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___ ___

[issue41323] Perform "peephole" optimization directly on control-flow graph.

Change by Raymond Hettinger : -- nosy: +tim.peters ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue41323] Perform "peephole" optimization directly on control-flow graph.

Raymond Hettinger added the comment: +1 This looks like a nice improvement. I've long wanted the optimizations to be moved upstream. At the time the peephole logic was first written, operating directly on the code object was the only option that kept optimizations separate from the core

[issue41323] Perform "peephole" optimization directly on control-flow graph.

Change by Brett Cannon : -- nosy: +vstinner ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue41323] Perform "peephole" optimization directly on control-flow graph.

Change by Mark Shannon : -- keywords: +patch pull_requests: +20653 stage: needs patch -> patch review pull_request: https://github.com/python/cpython/pull/21517 ___ Python tracker

[issue41323] Perform "peephole" optimization directly on control-flow graph.

New submission from Mark Shannon : Currently we perform various bytecode improvements as a pass on the code objects after generating the code object. This requires parsing the bytecode to find instructions, recreating the CFG, and rewriting the line number table. If we perform the