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[AMDGPU] Prevent post-RA scheduler from breaking memory clauses

Description

[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

Details

Committed
rampitecSep 19 2017, 1:54 PM
Differential Revision
D38014: [AMDGPU] Prevent post-RA scheduler from breaking memory clauses
Parents
rL313669: [SystemZ] Fix truncstore + bswap codegen bug
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