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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>164026</bug_id>
          
          <creation_ts>2016-10-26 11:52:15 -0700</creation_ts>
          <short_desc>[cmake][MinGW] Don&apos;t use MS bitfield layout to reduce sizes of data structures</short_desc>
          <delta_ts>2016-11-03 15:26:24 -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>Tools / Tests</component>
          <version>WebKit Local 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></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Konstantin Tokarev">annulen</reporter>
          <assigned_to name="Konstantin Tokarev">annulen</assigned_to>
          <cc>achristensen</cc>
    
    <cc>commit-queue</cc>
    
    <cc>lforschler</cc>
    
    <cc>mcatanzaro</cc>
    
    <cc>ossy</cc>
    
    <cc>pvollan</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1244862</commentid>
    <comment_count>0</comment_count>
    <who name="Konstantin Tokarev">annulen</who>
    <bug_when>2016-10-26 11:52:15 -0700</bug_when>
    <thetext>With MS bitfileds RegisterAtOffset becomes wider than ptrdiff_t because of different alignment requirements, invoking static_assert. Instead of muting assert for MinGW like it&apos;s done for MSVC, it&apos;s a better choice to use more dense layout, as bitfields are not used in public APIs.
    
Also, suppress MinGW warnings from &quot;#pragma warning&quot; which it doesn&apos;t understand.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1244864</commentid>
    <comment_count>1</comment_count>
      <attachid>292953</attachid>
    <who name="Konstantin Tokarev">annulen</who>
    <bug_when>2016-10-26 11:54:09 -0700</bug_when>
    <thetext>Created attachment 292953
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1244892</commentid>
    <comment_count>2</comment_count>
      <attachid>292953</attachid>
    <who name="Michael Catanzaro">mcatanzaro</who>
    <bug_when>2016-10-26 13:59:30 -0700</bug_when>
    <thetext>Comment on attachment 292953
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=292953&amp;action=review

&gt; ChangeLog:8
&gt; +        With MS bitfileds RegisterAtOffset becomes wider than ptrdiff_t because of

bitfileds -&gt; bitfields</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1247887</commentid>
    <comment_count>3</comment_count>
      <attachid>292953</attachid>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2016-11-03 15:26:20 -0700</bug_when>
    <thetext>Comment on attachment 292953
Patch

Clearing flags on attachment: 292953

Committed r208350: &lt;http://trac.webkit.org/changeset/208350&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1247888</commentid>
    <comment_count>4</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2016-11-03 15:26:24 -0700</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc>
      
          <attachment
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            <attachid>292953</attachid>
            <date>2016-10-26 11:54:09 -0700</date>
            <delta_ts>2016-11-03 15:26:20 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-164026-20161026215021.patch</filename>
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            <size>1876</size>
            <attacher name="Konstantin Tokarev">annulen</attacher>
            
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    </bug>

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