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[combine] Don't create LSHIFTRT of zero bits in change_zero_ext
authorKyrylo Tkachov <kyrylo.tkachov@arm.com>
Mon, 14 Dec 2015 11:33:00 +0000 (11:33 +0000)
committerKyrylo Tkachov <ktkachov@gcc.gnu.org>
Mon, 14 Dec 2015 11:33:00 +0000 (11:33 +0000)
commitadb48173b8a6e7cba100e890c0ec60a9fb2188c6
tree67a99df131f3aa22aba42eb7b4005cdcdb13ed87tree
parentf5a8c224d1f8289dd8da6b15b86956684d002a08commit | diff
[combine] Don't create LSHIFTRT of zero bits in change_zero_ext

* combine.c (change_zero_ext): Do not create a shift of zero length.

From-SVN: r231613
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