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<!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>174846</bug_id>
          
          <creation_ts>2017-07-25 17:09:38 -0700</creation_ts>
          <short_desc>Remove Broken CompareEq constant folding phase.</short_desc>
          <delta_ts>2017-08-16 19:58:55 -0700</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>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Keith Miller">keith_miller</reporter>
          <assigned_to name="Keith Miller">keith_miller</assigned_to>
          <cc>buildbot</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>1332175</commentid>
    <comment_count>0</comment_count>
    <who name="Keith Miller">keith_miller</who>
    <bug_when>2017-07-25 17:09:38 -0700</bug_when>
    <thetext>This phase is broken because it can lead to patterns that we don&apos;t know how to generate.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1332178</commentid>
    <comment_count>1</comment_count>
    <who name="Keith Miller">keith_miller</who>
    <bug_when>2017-07-25 17:11:45 -0700</bug_when>
    <thetext>rdar://problem/32978808</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1332182</commentid>
    <comment_count>2</comment_count>
      <attachid>316409</attachid>
    <who name="Keith Miller">keith_miller</who>
    <bug_when>2017-07-25 17:19:19 -0700</bug_when>
    <thetext>Created attachment 316409
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1332185</commentid>
    <comment_count>3</comment_count>
      <attachid>316411</attachid>
    <who name="Keith Miller">keith_miller</who>
    <bug_when>2017-07-25 17:20:41 -0700</bug_when>
    <thetext>Created attachment 316411
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1332189</commentid>
    <comment_count>4</comment_count>
      <attachid>316411</attachid>
    <who name="Saam Barati">saam</who>
    <bug_when>2017-07-25 17:34:31 -0700</bug_when>
    <thetext>Comment on attachment 316411
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=316411&amp;action=review

&gt; Source/JavaScriptCore/dfg/DFGConstantFoldingPhase.cpp:138
&gt; +                // FIXME: We should add back the broken folding phase here for comparisions with thing we prove one side has type SpecOther. 

thing =&gt; things.

Also, please add bug URL or remove FIXME.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1332190</commentid>
    <comment_count>5</comment_count>
      <attachid>316411</attachid>
    <who name="Keith Miller">keith_miller</who>
    <bug_when>2017-07-25 17:44:25 -0700</bug_when>
    <thetext>Comment on attachment 316411
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=316411&amp;action=review

&gt;&gt; Source/JavaScriptCore/dfg/DFGConstantFoldingPhase.cpp:138
&gt;&gt; +                // FIXME: We should add back the broken folding phase here for comparisions with thing we prove one side has type SpecOther. 
&gt; 
&gt; thing =&gt; things.
&gt; 
&gt; Also, please add bug URL or remove FIXME.

Fixed.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1332195</commentid>
    <comment_count>6</comment_count>
    <who name="Keith Miller">keith_miller</who>
    <bug_when>2017-07-25 17:49:31 -0700</bug_when>
    <thetext>Landed in: https://trac.webkit.org/changeset/219895/webkit</thetext>
  </long_desc>
      
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            <delta_ts>2017-07-25 17:20:40 -0700</delta_ts>
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