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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-29 20:48:45 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-29 20:48:45 +0000 |
| commit | 0d7585839540abb9ab661a741dc3e0c2c860bceb (patch) | |
| tree | de409289982038ea7215472a88a780c84de50048 /include/llvm/CodeGen/MachineMemOperand.h | |
| parent | 688c1cd6c932ce2811905dbca64e631c7ecbbd0f (diff) | |
Don't move normal loads across volatile/atomic loads.
It is technically allowed to move a normal load across a volatile load,
but probably not a good idea.
It is not allowed to move a load across an atomic load with
Ordering > Monotonic, and we model those with MOVolatile as well.
I recently removed the mayStore flag from atomic load instructions, so
they don't need a pseudo-opcode. This patch makes up for the difference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162857 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/MachineMemOperand.h')
0 files changed, 0 insertions, 0 deletions