diff --git a/llvm/docs/ProgrammersManual.rst b/llvm/docs/ProgrammersManual.rst
--- a/llvm/docs/ProgrammersManual.rst
+++ b/llvm/docs/ProgrammersManual.rst
@@ -214,7 +214,7 @@
 
 It can be implicitly constructed using a C style null-terminated string, an
 ``std::string``, or explicitly with a character pointer and length.  For
-example, the ``StringRef`` find function is declared as:
+example, the ``StringMap`` find function is declared as:
 
 .. code-block:: c++
 
diff --git a/llvm/include/llvm/Support/Chrono.h b/llvm/include/llvm/Support/Chrono.h
--- a/llvm/include/llvm/Support/Chrono.h
+++ b/llvm/include/llvm/Support/Chrono.h
@@ -22,13 +22,13 @@
 namespace sys {
 
 /// A time point on the system clock. This is provided for two reasons:
-/// - to insulate us agains subtle differences in behavoir to differences in
-///   system clock precision (which is implementation-defined and differs between
-///   platforms).
+/// - to insulate us against subtle differences in behavior to differences in
+///   system clock precision (which is implementation-defined and differs
+///   between platforms).
 /// - to shorten the type name
-/// The default precision is nanoseconds. If need a specific precision specify
-/// it explicitly. If unsure, use the default. If you need a time point on a
-/// clock other than the system_clock, use std::chrono directly.
+/// The default precision is nanoseconds. If you need a specific precision
+/// specify it explicitly. If unsure, use the default. If you need a time point
+/// on a clock other than the system_clock, use std::chrono directly.
 template <typename D = std::chrono::nanoseconds>
 using TimePoint = std::chrono::time_point<std::chrono::system_clock, D>;