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[Bug target/50038] redundant zero extensions


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50038

tocarip.intel at gmail dot com changed:

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                 CC|                            |tocarip.intel at gmail dot
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--- Comment #3 from tocarip.intel at gmail dot com 2011-09-30 14:51:31 UTC ---
So assuming this approach (modify implicit-zee pass) is right, we'll have to
enable this pass at least on x86 (32 bit). Is it ok ?

P. S.
I forgot to mention that this patch bootstraps/passes ,make check.


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