[Webkit-unassigned] [Bug 149729] New: Remove unnecessary SpecialFastCaseProfiles.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Oct 1 15:38:35 PDT 2015
https://bugs.webkit.org/show_bug.cgi?id=149729
Bug ID: 149729
Summary: Remove unnecessary SpecialFastCaseProfiles.
Classification: Unclassified
Product: WebKit
Version: WebKit Local Build
Hardware: Unspecified
OS: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: JavaScriptCore
Assignee: webkit-unassigned at lists.webkit.org
Reporter: mark.lam at apple.com
The current baseline code creates special fast case profiles records for bytecodes that don't need them. This was done to keep the DFG from crashing when it searches for such a profile and don't find one. Instead, we should fix the code to check for the existence of the profile before dereferencing it to get a count.
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