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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2020-08-08 12:22:40 -0400 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2020-08-20 16:17:30 -0400 |
| commit | 79ce9bb3803998fc2a20ce1c88392cf292f35f92 (patch) | |
| tree | d86367187c2f2518625d928715122bdf048c4715 /llvm/lib/CodeGen/MachineInstr.cpp | |
| parent | 18b218007db69627bb651bb2a548afe92d615cd3 (diff) | |
| download | llvm-79ce9bb3803998fc2a20ce1c88392cf292f35f92.zip llvm-79ce9bb3803998fc2a20ce1c88392cf292f35f92.tar.gz llvm-79ce9bb3803998fc2a20ce1c88392cf292f35f92.tar.bz2 | |
CodeGen: Don't drop AA metadata when splitting MachineMemOperands
Assuming this is used to split a memory access into smaller pieces,
the new access should still have the same aliasing properties as the
original memory access. As far as I can tell, this wasn't
intentionally dropped. It may be necessary to drop this if you are
moving the operand outside of the bounds of the original object in
such a way that it may alias another IR object, but I don't think any
of the existing users are doing this. Some of the uses widen into
unused alignment padding, which I think is OK.
Diffstat (limited to 'llvm/lib/CodeGen/MachineInstr.cpp')
0 files changed, 0 insertions, 0 deletions