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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-29 21:08:52 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-29 21:08:52 +0000 |
| commit | ad7ebc2aebd94ec9e0bd01e1735d06cfe067368b (patch) | |
| tree | f0e82cfe34644a2dcfa2123f1edb7360a654ff7d /lib/CodeGen/MachineInstr.cpp | |
| parent | 0d7585839540abb9ab661a741dc3e0c2c860bceb (diff) | |
| download | llvm-ad7ebc2aebd94ec9e0bd01e1735d06cfe067368b.tar.gz llvm-ad7ebc2aebd94ec9e0bd01e1735d06cfe067368b.tar.bz2 llvm-ad7ebc2aebd94ec9e0bd01e1735d06cfe067368b.tar.xz | |
Add MachineMemOperand::isUnordered().
This means the same as LoadInst/StoreInst::isUnordered(), and implies
!isVolatile().
Atomic loads and stored are also ordered, and this is the right method
to check if it is safe to reorder memory operations. Ordered atomics
can't be reordered wrt normal loads and stores, which is a stronger
constraint than volatile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162859 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineInstr.cpp')
0 files changed, 0 insertions, 0 deletions