[NFC] fix trivial typos in comments and documents
"in in" -> "in", "on on" -> "on" etc.
llvm-svn: 323508
diff --git a/llvm/lib/CodeGen/ImplicitNullChecks.cpp b/llvm/lib/CodeGen/ImplicitNullChecks.cpp
index a10bb01..f9853a4 100644
--- a/llvm/lib/CodeGen/ImplicitNullChecks.cpp
+++ b/llvm/lib/CodeGen/ImplicitNullChecks.cpp
@@ -134,7 +134,7 @@
// The block branched to if the pointer is null.
MachineBasicBlock *NullSucc;
- // If this is non-null, then MemOperation has a dependency on on this
+ // If this is non-null, then MemOperation has a dependency on this
// instruction; and it needs to be hoisted to execute before MemOperation.
MachineInstr *OnlyDependency;