<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>194937</bug_id>
          
          <creation_ts>2019-02-22 00:53:55 -0800</creation_ts>
          <short_desc>Avoid hashing CompactVariableEnvironment when decoding CompactVariableMap::Handle</short_desc>
          <delta_ts>2019-02-25 12:16:34 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>JavaScriptCore</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          <dependson>194706</dependson>
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Tadeu Zagallo">tzagallo</reporter>
          <assigned_to name="Tadeu Zagallo">tzagallo</assigned_to>
          <cc>commit-queue</cc>
    
    <cc>ews-watchlist</cc>
    
    <cc>keith_miller</cc>
    
    <cc>mark.lam</cc>
    
    <cc>msaboff</cc>
    
    <cc>saam</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1508930</commentid>
    <comment_count>0</comment_count>
    <who name="Tadeu Zagallo">tzagallo</who>
    <bug_when>2019-02-22 00:53:55 -0800</bug_when>
    <thetext>Per Saam&apos;s suggestion in https://bugs.webkit.org/show_bug.cgi?id=194706, hashing the CompactVariableEnvironment is expensive and we could avoid it when decoding multiple handles to the same environment.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1508931</commentid>
    <comment_count>1</comment_count>
      <attachid>362705</attachid>
    <who name="Tadeu Zagallo">tzagallo</who>
    <bug_when>2019-02-22 00:59:26 -0800</bug_when>
    <thetext>Created attachment 362705
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1509665</commentid>
    <comment_count>2</comment_count>
      <attachid>362908</attachid>
    <who name="Tadeu Zagallo">tzagallo</who>
    <bug_when>2019-02-25 10:16:54 -0800</bug_when>
    <thetext>Created attachment 362908
Patch

Rebase</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1509717</commentid>
    <comment_count>3</comment_count>
      <attachid>362908</attachid>
    <who name="Saam Barati">saam</who>
    <bug_when>2019-02-25 11:27:52 -0800</bug_when>
    <thetext>Comment on attachment 362908
Patch

r=me</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1509743</commentid>
    <comment_count>4</comment_count>
      <attachid>362908</attachid>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2019-02-25 12:15:59 -0800</bug_when>
    <thetext>Comment on attachment 362908
Patch

Clearing flags on attachment: 362908

Committed r242054: &lt;https://trac.webkit.org/changeset/242054&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1509744</commentid>
    <comment_count>5</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2019-02-25 12:16:00 -0800</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1509745</commentid>
    <comment_count>6</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2019-02-25 12:16:34 -0800</bug_when>
    <thetext>&lt;rdar://problem/48372417&gt;</thetext>
  </long_desc>
      
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            <delta_ts>2019-02-25 10:16:43 -0800</delta_ts>
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            <attacher name="Tadeu Zagallo">tzagallo</attacher>
            
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