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-rw-r--r--lib/CodeGen/LiveIntervalAnalysis.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 196109b..83df4d1 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -366,7 +366,7 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb,
for (unsigned i = 0, e = vi.AliveBlocks.size(); i != e; ++i) {
if (vi.AliveBlocks[i]) {
LiveRange LR(getMBBStartIdx(i),
- getMBBEndIdx(i),
+ getMBBEndIdx(i)+1, // MBB ends at -1.
ValNo);
interval.addRange(LR);
DOUT << " +" << LR;