diff options
Diffstat (limited to 'lib/CodeGen/SplitKit.h')
| -rw-r--r-- | lib/CodeGen/SplitKit.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/CodeGen/SplitKit.h b/lib/CodeGen/SplitKit.h index 1a4937ccda..5abdd4c62e 100644 --- a/lib/CodeGen/SplitKit.h +++ b/lib/CodeGen/SplitKit.h @@ -250,6 +250,10 @@ private: /// The current spill mode, selected by reset(). ComplementSpillMode SpillMode; + /// Parent interval values where the complement interval may be overlapping + /// other intervals. + SmallPtrSet<const VNInfo*, 8> OverlappedComplement; + typedef IntervalMap<SlotIndex, unsigned> RegAssignMap; /// Allocator for the interval map. This will eventually be shared with @@ -296,6 +300,17 @@ private: /// of the number of defs. void markComplexMapped(unsigned RegIdx, const VNInfo *ParentVNI); + /// markOverlappedComplement - Mark ParentVNI as being overlapped in the + /// complement interval. The complement interval may overlap other intervals + /// after overlapIntv has been called, or when in spill mode. + void markOverlappedComplement(const VNInfo *ParentVNI); + + /// needsRecompute - Returns true if the live range of ParentVNI needs to be + /// recomputed in RegIdx using LiveRangeCalc::extend. This is the case if + /// the value has been rematerialized, or when back-copies have been hoisted + /// in spill mode. + bool needsRecompute(unsigned RegIdx, const VNInfo *ParentVNI); + /// defFromParent - Define Reg from ParentVNI at UseIdx using either /// rematerialization or a COPY from parent. Return the new value. VNInfo *defFromParent(unsigned RegIdx, |