Bug 63669 - DFG JIT - fix spectral-norm regression
Summary: DFG JIT - fix spectral-norm regression
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-06-29 16:35 PDT by Gavin Barraclough
Modified: 2011-06-29 21:54 PDT (History)
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Description Gavin Barraclough 2011-06-29 16:35:40 PDT
The problem is a mis-speculation leading to us falling off the speculative path.  Make the speculation logic slightly smarter, don't predict int if one of the operands is already loaded as a double (we use this logic already for compares).
Comment 1 Gavin Barraclough 2011-06-29 21:54:29 PDT
Fixed in r90065