Bug 143733 - Rationalize DFG OSR exit liveness
Summary: Rationalize DFG OSR exit liveness
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Nobody
Depends on: 143734 143735 143736
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Reported: 2015-04-14 15:53 PDT by Filip Pizlo
Modified: 2015-05-14 12:29 PDT (History)
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Description Filip Pizlo 2015-04-14 15:53:18 PDT
Currently we keep things that are dead-in-DFG alive for OSR by using Phantoms.  Phantoms are fine as a backend hack in the DFG, but they are really hard to preserve soundly through serious compiler transformations.  We should rationalize this so that we have fewer bugs to fix.
Comment 1 Filip Pizlo 2015-05-14 12:29:28 PDT
This is done!