Changed slot index ranges for MachineBasicBlocks to be exclusive of endpoint.
This fixes an in-place update bug where code inserted at the end of basic blocks may not be covered by existing intervals which were live across the entire block. It is also consistent with the way ranges are specified for live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91859 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CalcSpillWeights.cpp b/lib/CodeGen/CalcSpillWeights.cpp
index dcffb8a..a7e798e 100644
--- a/lib/CodeGen/CalcSpillWeights.cpp
+++ b/lib/CodeGen/CalcSpillWeights.cpp
@@ -95,7 +95,7 @@
SlotIndex defIdx = lis->getInstructionIndex(mi).getDefIndex();
const LiveRange *dlr =
lis->getInterval(reg).getLiveRangeContaining(defIdx);
- if (dlr->end > mbbEnd)
+ if (dlr->end >= mbbEnd)
weight *= 3.0F;
}
regInt.weight += weight;