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LLVM
3.7.0
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A live range for subregisters. More...
#include <LiveInterval.h>
Public Member Functions | |
| SubRange (unsigned LaneMask) | |
| Constructs a new SubRange object. More... | |
| SubRange (unsigned LaneMask, const LiveRange &Other, BumpPtrAllocator &Allocator) | |
Constructs a new SubRange object by copying liveness from Other. More... | |
Public Member Functions inherited from llvm::LiveRange | |
| iterator | begin () |
| iterator | end () |
| const_iterator | begin () const |
| const_iterator | end () const |
| vni_iterator | vni_begin () |
| vni_iterator | vni_end () |
| const_vni_iterator | vni_begin () const |
| const_vni_iterator | vni_end () const |
| LiveRange (bool UseSegmentSet=false) | |
| Constructs a new LiveRange object. More... | |
| LiveRange (const LiveRange &Other, BumpPtrAllocator &Allocator) | |
| Constructs a new LiveRange object by copying segments and valnos from another LiveRange. More... | |
| iterator | advanceTo (iterator I, SlotIndex Pos) |
| advanceTo - Advance the specified iterator to point to the Segment containing the specified position, or end() if the position is past the end of the range. More... | |
| const_iterator | advanceTo (const_iterator I, SlotIndex Pos) const |
| iterator | find (SlotIndex Pos) |
| find - Return an iterator pointing to the first segment that ends after Pos, or end(). More... | |
| const_iterator | find (SlotIndex Pos) const |
| void | clear () |
| size_t | size () const |
| bool | hasAtLeastOneValue () const |
| bool | containsOneValue () const |
| unsigned | getNumValNums () const |
| VNInfo * | getValNumInfo (unsigned ValNo) |
| getValNumInfo - Returns pointer to the specified val#. More... | |
| const VNInfo * | getValNumInfo (unsigned ValNo) const |
| bool | containsValue (const VNInfo *VNI) const |
| containsValue - Returns true if VNI belongs to this range. More... | |
| VNInfo * | getNextValue (SlotIndex def, VNInfo::Allocator &VNInfoAllocator) |
| getNextValue - Create a new value number and return it. More... | |
| VNInfo * | createDeadDef (SlotIndex Def, VNInfo::Allocator &VNInfoAllocator) |
| createDeadDef - Make sure the range has a value defined at Def. More... | |
| VNInfo * | createValueCopy (const VNInfo *orig, VNInfo::Allocator &VNInfoAllocator) |
| Create a copy of the given value. More... | |
| void | RenumberValues () |
| RenumberValues - Renumber all values in order of appearance and remove unused values. More... | |
| VNInfo * | MergeValueNumberInto (VNInfo *V1, VNInfo *V2) |
| MergeValueNumberInto - This method is called when two value numbers are found to be equivalent. More... | |
| void | MergeSegmentsInAsValue (const LiveRange &RHS, VNInfo *LHSValNo) |
| Merge all of the live segments of a specific val# in RHS into this live range as the specified value number. More... | |
| void | MergeValueInAsValue (const LiveRange &RHS, const VNInfo *RHSValNo, VNInfo *LHSValNo) |
| MergeValueInAsValue - Merge all of the segments of a specific val# in RHS into this live range as the specified value number. More... | |
| bool | empty () const |
| SlotIndex | beginIndex () const |
| beginIndex - Return the lowest numbered slot covered. More... | |
| SlotIndex | endIndex () const |
| endNumber - return the maximum point of the range of the whole, exclusive. More... | |
| bool | expiredAt (SlotIndex index) const |
| bool | liveAt (SlotIndex index) const |
| const Segment * | getSegmentContaining (SlotIndex Idx) const |
| Return the segment that contains the specified index, or null if there is none. More... | |
| Segment * | getSegmentContaining (SlotIndex Idx) |
| Return the live segment that contains the specified index, or null if there is none. More... | |
| VNInfo * | getVNInfoAt (SlotIndex Idx) const |
| getVNInfoAt - Return the VNInfo that is live at Idx, or NULL. More... | |
| VNInfo * | getVNInfoBefore (SlotIndex Idx) const |
| getVNInfoBefore - Return the VNInfo that is live up to but not necessarilly including Idx, or NULL. More... | |
| iterator | FindSegmentContaining (SlotIndex Idx) |
| Return an iterator to the segment that contains the specified index, or end() if there is none. More... | |
| const_iterator | FindSegmentContaining (SlotIndex Idx) const |
| bool | overlaps (const LiveRange &other) const |
| overlaps - Return true if the intersection of the two live ranges is not empty. More... | |
| bool | overlaps (const LiveRange &Other, const CoalescerPair &CP, const SlotIndexes &) const |
| overlaps - Return true if the two ranges have overlapping segments that are not coalescable according to CP. More... | |
| bool | overlaps (SlotIndex Start, SlotIndex End) const |
| overlaps - Return true if the live range overlaps an interval specified by [Start, End). More... | |
| bool | overlapsFrom (const LiveRange &Other, const_iterator I) const |
| overlapsFrom - Return true if the intersection of the two live ranges is not empty. More... | |
| bool | covers (const LiveRange &Other) const |
Returns true if all segments of the Other live range are completely covered by this live range. More... | |
| iterator | addSegment (Segment S) |
| Add the specified Segment to this range, merging segments as appropriate. More... | |
| VNInfo * | extendInBlock (SlotIndex StartIdx, SlotIndex Use) |
If this range is live before Use in the basic block that starts at StartIdx, extend it to be live up to Use, and return the value. More... | |
| void | join (LiveRange &Other, const int *ValNoAssignments, const int *RHSValNoAssignments, SmallVectorImpl< VNInfo * > &NewVNInfo) |
| join - Join two live ranges (this, and other) together. More... | |
| bool | isLocal (SlotIndex Start, SlotIndex End) const |
| True iff this segment is a single segment that lies between the specified boundaries, exclusively. More... | |
| void | removeSegment (SlotIndex Start, SlotIndex End, bool RemoveDeadValNo=false) |
| Remove the specified segment from this range. More... | |
| void | removeSegment (Segment S, bool RemoveDeadValNo=false) |
| iterator | removeSegment (iterator I) |
Remove segment pointed to by iterator I from this range. More... | |
| LiveQueryResult | Query (SlotIndex Idx) const |
| Query Liveness at Idx. More... | |
| void | removeValNo (VNInfo *ValNo) |
| removeValNo - Remove all the segments defined by the specified value#. More... | |
| bool | isZeroLength (SlotIndexes *Indexes) const |
| Returns true if the live range is zero length, i.e. More... | |
| bool | operator< (const LiveRange &other) const |
| void | flushSegmentSet () |
| Flush segment set into the regular segment vector. More... | |
| void | print (raw_ostream &OS) const |
| void | dump () const |
| void | verify () const |
| Walk the range and assert if any invariants fail to hold. More... | |
Public Attributes | |
| SubRange * | Next |
| unsigned | LaneMask |
Public Attributes inherited from llvm::LiveRange | |
| Segments | segments |
| VNInfoList | valnos |
| std::unique_ptr< SegmentSet > | segmentSet |
Additional Inherited Members | |
Public Types inherited from llvm::LiveRange | |
| typedef SmallVector< Segment, 4 > | Segments |
| typedef SmallVector< VNInfo *, 4 > | VNInfoList |
| typedef std::set< Segment > | SegmentSet |
| typedef Segments::iterator | iterator |
| typedef Segments::const_iterator | const_iterator |
| typedef VNInfoList::iterator | vni_iterator |
| typedef VNInfoList::const_iterator | const_vni_iterator |
Protected Member Functions inherited from llvm::LiveRange | |
| void | append (const LiveRange::Segment S) |
| Append a segment to the list of segments. More... | |
A live range for subregisters.
The LaneMask specifies which parts of the super register are covered by the interval. (
Definition at line 595 of file LiveInterval.h.
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inline |
Constructs a new SubRange object.
Definition at line 601 of file LiveInterval.h.
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inline |
Constructs a new SubRange object by copying liveness from Other.
Definition at line 606 of file LiveInterval.h.
| unsigned llvm::LiveInterval::SubRange::LaneMask |
Definition at line 598 of file LiveInterval.h.
Referenced by llvm::LiveIntervals::addKillFlags(), llvm::LiveRangeCalc::calculate(), llvm::LiveInterval::constructMainRangeFromSubranges(), and llvm::LiveIntervals::shrinkToUses().
| SubRange* llvm::LiveInterval::SubRange::Next |
Definition at line 597 of file LiveInterval.h.
Referenced by llvm::LiveInterval::removeEmptySubRanges().
1.8.6