Stanislav Mekhanoshin d4ae470d2e [AMDGPU] Prevent post-RA scheduler from breaking memory clauses ...

The pre-RA scheduler does load/store clustering, but post-RA
scheduler undoes it. Add mutation to prevent it.

Differential Revision: https://reviews.llvm.org/D38014

llvm-svn: 313670

2017-09-19 20:54:38 +00:00

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