[Sparc] Atomics pass changes to make work with SparcV8 back-ends.

This change reverts a "false" test that was placed to avoid regressions while the atomics pass was completed for the Sparc back-ends.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273949 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed