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Commit a9f4d928 authored by Andrew Trick's avatar Andrew Trick
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When folding memory operands, preserve existing MachineMemOperands.

This comes into play with patchpoint, which can fold multiple
operands. Since the patchpoint is already treated as a call, the
machine mem operands won't affect anything, and there's nothing to
test. But we still want to do the right thing here to be sure that our
MIs obey the rules.

llvm-svn: 194750
parent 855e0b71
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