Eli Bendersky 85af3e7445 Fix the test: DCE optimized away everything.
Use volatile store to protect the generated PTX from DCE.

Patch by Jingyue Wu.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206763 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-21 17:23:12 +00:00
..