[7u6] Request for approval for CR 7171223 - Building ExtensionSubtables.cpp should use -fno-strict-aliasing

Edvard Wendelin edvard.wendelin at oracle.com
Tue Jun 12 01:44:21 PDT 2012


Looks good!

Cheers,
Edvard

On 06/12/2012 01:20 AM, Andrew Hughes wrote:
> Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7171223
> Changeset: http://hg.openjdk.java.net/jdk8/2d/jdk/rev/c892ca15ca52
> Review thread: http://mail.openjdk.java.net/pipermail/2d-dev/2012-May/002517.html
> Reviewers: prr, ohair
>
> Without this, GCC 4.4 and later produce a warning and bad code may be produced
> as a result.
>
> It's down to the addition of:
>
> #define READ_LONG(code) (le_uint32)((SWAPW(*(le_uint16*)&code)<<  16) + SWAPW(*(((le_uint16*)&code) + 1)))
>
> in:
>
> changeset:   3171:1d4340015b85
> user:        srl
> date:        Mon Dec 06 16:10:01 2010 -0800
> summary:     6886358: layout code update
>
> Ok for backport?



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