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aada52189e
If there is a store followed by a store with the same value to the same location, then the store is dead/noop. It can be removed. This problem is found in spec2006-197.parser. For example, stur w10, [x11, #-4] stur w10, [x11, #-4] Then one of the two stur instructions can be removed. Patch by David Xu! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218569 91177308-0d34-0410-b5e6-96231b3b80d8
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