Fix typo.

llvm-svn: 126467
diff --git a/llvm/lib/Target/ARM/ARMFrameLowering.cpp b/llvm/lib/Target/ARM/ARMFrameLowering.cpp
index e248699..68c33f0 100644
--- a/llvm/lib/Target/ARM/ARMFrameLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMFrameLowering.cpp
@@ -218,7 +218,7 @@
   if (DPRCSSize > 0) {
     MBBI++;
     // Since vpush register list cannot have gaps, there may be multiple vpush
-    // instructions in the epilogue.
+    // instructions in the prologue.
     while (MBBI->getOpcode() == ARM::VSTMDDB_UPD)
       MBBI++;
   }