Don't use nextIndex to check for live out of instruction.
Insert copy after defining instruction.
Fix LiveIntervalMap::extendTo to properly handle live segments starting before
the current basic block.
Make sure the open live range is extended to the inserted copy's use slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115665 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SplitKit.h b/lib/CodeGen/SplitKit.h
index 3e67768..ebc783d 100644
--- a/lib/CodeGen/SplitKit.h
+++ b/lib/CodeGen/SplitKit.h
@@ -161,11 +161,6 @@
// values not present (unknown/unmapped).
ValueMap valueMap_;
- // extendTo - Find the last li_ value defined in MBB at or before Idx. The
- // parentli is assumed to be live at Idx. Extend the live range to include
- // Idx. Return the found VNInfo, or NULL.
- VNInfo *extendTo(MachineBasicBlock *MBB, SlotIndex Idx);
-
public:
LiveIntervalMap(LiveIntervals &lis,
const LiveInterval &parentli)
@@ -194,6 +189,11 @@
/// mapped value.
VNInfo *mapValue(const VNInfo *ParentVNI, SlotIndex Idx, bool *simple = 0);
+ // extendTo - Find the last li_ value defined in MBB at or before Idx. The
+ // parentli is assumed to be live at Idx. Extend the live range to include
+ // Idx. Return the found VNInfo, or NULL.
+ VNInfo *extendTo(MachineBasicBlock *MBB, SlotIndex Idx);
+
/// isMapped - Return true is ParentVNI is a known mapped value. It may be a
/// simple 1-1 mapping or a complex mapping to later defs.
bool isMapped(const VNInfo *ParentVNI) const {