diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 368094396b0..c0fc477fe6d 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -103,7 +103,7 @@ void LiveIntervals::releaseMemory() {
   VNInfoAllocator.Reset();
 }
 
-/// runOnMachineFunction - Register allocate the whole function
+/// runOnMachineFunction - calculates LiveIntervals
 ///
 bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {
   MF = &fn;