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[combine] Don't create LSHIFTRT of zero bits in change_zero_ext
authorktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
Mon, 14 Dec 2015 11:33:00 +0000 (11:33 +0000)
committerktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
Mon, 14 Dec 2015 11:33:00 +0000 (11:33 +0000)
commit4bc89ef0ff8d1b727dc79e044980fbe9577c1e53
tree67a99df131f3aa22aba42eb7b4005cdcdb13ed87tree | snapshot
parentf1cf83ef626cfdb8c85316ad7a8a5e4ade87b4f4commit | 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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231613 138bc75d-0d04-0410-961f-82ee72b054a4
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