diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineBlockPlacement.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineBlockPlacement.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineBlockPlacement.cpp b/llvm/lib/CodeGen/MachineBlockPlacement.cpp index 048baa4..2e75848 100644 --- a/llvm/lib/CodeGen/MachineBlockPlacement.cpp +++ b/llvm/lib/CodeGen/MachineBlockPlacement.cpp @@ -3337,6 +3337,13 @@ bool MachineBlockPlacement::runOnMachineFunction(MachineFunction &MF) { TailDupSize = TailDupPlacementAggressiveThreshold; } + // If there's no threshold provided through options, query the target + // information for a threshold instead. + if (TailDupPlacementThreshold.getNumOccurrences() == 0 && + (PassConfig->getOptLevel() < CodeGenOpt::Aggressive || + TailDupPlacementAggressiveThreshold.getNumOccurrences() == 0)) + TailDupSize = TII->getTailDuplicateSize(PassConfig->getOptLevel()); + if (allowTailDupPlacement()) { MPDT = &getAnalysis<MachinePostDominatorTree>(); bool OptForSize = MF.getFunction().hasOptSize() || |