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(parent: c732a52) | patch
linux-user: Rewrite __get_user/__put_user with __builtin_choose_expr
authorRichard Henderson <rth@twiddle.net>
Sat, 5 Jan 2013 00:39:31 +0000 (16:39 -0800)
committerBlue Swirl <blauwirbel@gmail.com>
Sat, 12 Jan 2013 12:24:47 +0000 (12:24 +0000)
commit658f2dc970996d547a641b5685e384ebe6f2648e
treec88fc8c6d516caac5942676f65bcb7cb1f5788fftree
parentc732a52d3e3b7ed42d7daa94ba40a83408cd6f22commit | diff
linux-user: Rewrite __get_user/__put_user with __builtin_choose_expr

The previous formuation with multiple assignments to __typeof(*hptr) falls
down when hptr is qualified const.  E.g. with const struct S *p, p->f is
also qualified const.

With this formulation, there's no assignment to any local variable.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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