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Added methods to get the live range immediately before a given slot. Intended to parallel the getVNInfoBefore method.

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llvm-svn: 148453
This commit is contained in:
Lang Hames 2012-01-19 01:36:06 +00:00
parent 9888a01041
commit 059e79c753
1 changed files with 8 additions and 0 deletions
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8
include/llvm/CodeGen/LiveInterval.h
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@ -405,6 +405,14 @@ namespace llvm {
return I == end() ? 0 : &*I;
}
const LiveRange *getLiveRangeBefore(SlotIndex Idx) const {
return getLiveRangeContaining(Idx.getPrevSlot());
}
LiveRange *getLiveRangeBefore(SlotIndex Idx) {
return getLiveRangeContaining(Idx.getPrevSlot());
}
/// getVNInfoAt - Return the VNInfo that is live at Idx, or NULL.
VNInfo *getVNInfoAt(SlotIndex Idx) const {
const_iterator I = FindLiveRangeContaining(Idx);