Elimination of duplicate sign extensions

Fu, Chao-Ying fu@mips.com
Tue Sep 25 23:43:00 GMT 2007

Mark Shinwell wrote:
> Sorry about that; an oversight on my part.  If no promotions happen
> then we must make sure (as the old code did) that we don't
> inadvertently mark the relevant arguments as already being
> sign/zero extended.
> That below fixes your testcase for me.  OK to apply pending the
> running of the testsuite on a MIPS target and x86-64 bootstrap?

  Thanks for the patch!  However, I don't have the right to
approve the patch.


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