diff options
Diffstat (limited to 'include/llvm/CodeGen/LiveRegMatrix.h')
| -rw-r--r-- | include/llvm/CodeGen/LiveRegMatrix.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveRegMatrix.h b/include/llvm/CodeGen/LiveRegMatrix.h index fa6827f6b1f9..f62a55c73085 100644 --- a/include/llvm/CodeGen/LiveRegMatrix.h +++ b/include/llvm/CodeGen/LiveRegMatrix.h @@ -107,6 +107,13 @@ public: /// with the highest enum value is returned. InterferenceKind checkInterference(LiveInterval &VirtReg, unsigned PhysReg); + /// Check for interference in the segment [Start, End) that may prevent + /// assignment to PhysReg. If this function returns true, there is + /// interference in the segment [Start, End) of some other interval already + /// assigned to PhysReg. If this function returns false, PhysReg is free at + /// the segment [Start, End). + bool checkInterference(SlotIndex Start, SlotIndex End, unsigned PhysReg); + /// Assign VirtReg to PhysReg. /// This will mark VirtReg's live range as occupied in the LiveRegMatrix and /// update VirtRegMap. The live range is expected to be available in PhysReg. |