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[MachineLICM] Debug intrinsics shouldn't affect hoist decisions
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Authored by gberry on Apr 30 2018, 1:25 PM.

Details

Summary

When checking if an instruction stores to a given frame index, check
that the instruction can write to memory before looking at the memory
operands list to avoid e.g. DBG_VALUE instructions that reference a
frame index preventing a load from that index from being hoisted.

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Repository
rL LLVM

Event Timeline

gberry created this revision.Apr 30 2018, 1:25 PM
This revision is now accepted and ready to land.May 3 2018, 4:29 PM
This revision was automatically updated to reflect the committed changes.