Fangrui Song 488f1c4893 [X86][test] Add a regression test for lock cmpxchg16b on a global variable with offset ...

Add a test for a bug (uncovered by D88808) fixed by f34bb06935.
Also delete cmpxchg16b.ll which is covered by atomic128.ll

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D89163

2020-10-09 15:44:32 -07:00

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