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[DSE] Remove dead stores in end blocks containing fence

Description

[DSE] Remove dead stores in end blocks containing fence

We can remove dead stores in the presence of fence instructions. Fence
does not change an otherwise thread local store to visible.

reviewers: reames, dexonsmith, jfb
Differential Revision: http://reviews.llvm.org/D22001

Details

Committed
annatJul 7 2016, 1:51 PM
Differential Revision
D22001: [DSE] Remove dead stores in end blocks containing fence
Parents
rL274794: Add a missing semicolon.
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