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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148453 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames 2012-01-19 01:36:06 +00:00
parent 2faa5d2328
commit c2220057c0

View File

@ -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);