diff --git a/llvm/include/llvm/MC/MCInstrDesc.h b/llvm/include/llvm/MC/MCInstrDesc.h
index 1cb8934c3d68..b2f621fb491e 100644
--- a/llvm/include/llvm/MC/MCInstrDesc.h
+++ b/llvm/include/llvm/MC/MCInstrDesc.h
@@ -174,8 +174,8 @@ public:
   // deprecated due to a "complex" reason, below.
   int64_t DeprecatedFeature;
 
-  // A complex method to determine if a certain is deprecated or not, and return
-  // the reason for deprecation.
+  // A complex method to determine if a certain instruction is deprecated or
+  // not, and return the reason for deprecation.
   bool (*ComplexDeprecationInfo)(MCInst &, const MCSubtargetInfo &,
                                  std::string &);
 
diff --git a/llvm/include/llvm/Support/SMLoc.h b/llvm/include/llvm/Support/SMLoc.h
index 5b8be5505540..c74feff378d6 100644
--- a/llvm/include/llvm/Support/SMLoc.h
+++ b/llvm/include/llvm/Support/SMLoc.h
@@ -44,8 +44,8 @@ public:
 /// Represents a range in source code.
 ///
 /// SMRange is implemented using a half-open range, as is the convention in C++.
-/// In the string "abc", the range (1,3] represents the substring "bc", and the
-/// range (2,2] represents an empty range between the characters "b" and "c".
+/// In the string "abc", the range [1,3) represents the substring "bc", and the
+/// range [2,2) represents an empty range between the characters "b" and "c".
 class SMRange {
 public:
   SMLoc Start, End;
@@ -54,7 +54,7 @@ public:
   SMRange(NoneType) {}
   SMRange(SMLoc St, SMLoc En) : Start(St), End(En) {
     assert(Start.isValid() == End.isValid() &&
-           "Start and end should either both be valid or both be invalid!");
+           "Start and End should either both be valid or both be invalid!");
   }
 
   bool isValid() const { return Start.isValid(); }