diff options
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp b/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp index fc5ed6e9c8c..7aed5d65600 100644 --- a/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp +++ b/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp @@ -1706,8 +1706,10 @@ bool AArch64LoadStoreOpt::runOnMachineFunction(MachineFunction &Fn) { return Modified; } -// FIXME: Do we need/want a pre-alloc pass like ARM has to try to keep -// loads and stores near one another? +// FIXME: Do we need/want a pre-alloc pass like ARM has to try to keep loads and +// stores near one another? Note: The pre-RA instruction scheduler already has +// hooks to try and schedule pairable loads/stores together to improve pairing +// opportunities. Thus, pre-RA pairing pass may not be worth the effort. // FIXME: When pairing store instructions it's very possible for this pass to // hoist a store with a KILL marker above another use (without a KILL marker). |
