diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachinePipeliner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachinePipeliner.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/MachinePipeliner.cpp b/llvm/lib/CodeGen/MachinePipeliner.cpp index fab44512914..1e729d4851a 100644 --- a/llvm/lib/CodeGen/MachinePipeliner.cpp +++ b/llvm/lib/CodeGen/MachinePipeliner.cpp @@ -2766,7 +2766,9 @@ void SwingSchedulerDAG::updateMemOperands(MachineInstr &NewMI, return; SmallVector<MachineMemOperand *, 2> NewMMOs; for (MachineMemOperand *MMO : NewMI.memoperands()) { - if (MMO->isVolatile() || (MMO->isInvariant() && MMO->isDereferenceable()) || + // TODO: Figure out whether isAtomic is really necessary (see D57601). + if (MMO->isVolatile() || MMO->isAtomic() || + (MMO->isInvariant() && MMO->isDereferenceable()) || (!MMO->getValue())) { NewMMOs.push_back(MMO); continue; |
