diff --git a/clang/lib/StaticAnalyzer/Checkers/CheckObjCInstMethSignature.cpp b/clang/lib/StaticAnalyzer/Checkers/CheckObjCInstMethSignature.cpp
index 175dfcef0df4..a13de306eac8 100644
--- a/clang/lib/StaticAnalyzer/Checkers/CheckObjCInstMethSignature.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/CheckObjCInstMethSignature.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This file defines a CheckObjCInstMethSignature, a flow-insenstive check
+//  This file defines a CheckObjCInstMethSignature, a flow-insensitive check
 //  that determines if an Objective-C class interface incorrectly redefines
 //  the method signature in a subclass.
 //
diff --git a/clang/lib/StaticAnalyzer/Checkers/NSErrorChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/NSErrorChecker.cpp
index 90c5583d8969..dcca8be55e33 100644
--- a/clang/lib/StaticAnalyzer/Checkers/NSErrorChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/NSErrorChecker.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This file defines a CheckNSError, a flow-insenstive check
+//  This file defines a CheckNSError, a flow-insensitive check
 //  that determines if an Objective-C class interface correctly returns
 //  a non-void return type.
 //
diff --git a/compiler-rt/test/profile/Linux/instrprof-cs.c b/compiler-rt/test/profile/Linux/instrprof-cs.c
index d825525a532d..0ad6f0350c56 100644
--- a/compiler-rt/test/profile/Linux/instrprof-cs.c
+++ b/compiler-rt/test/profile/Linux/instrprof-cs.c
@@ -8,7 +8,7 @@
 // RUN: %clang_profgen=%t.profraw -o %t.gen.cis -O2 %s
 // RUN: %run %t.gen.cis
 // RUN: llvm-profdata merge -o %t.cis.profdata %t.profraw
-// Check context insenstive profile
+// Check context insensitive profile
 // RUN: %clang_profuse=%t.cis.profdata  -O2 -emit-llvm -S %s -o - | FileCheck %s --check-prefix=CIS
 int g1 = 1;
 int volatile g2 = 2;
diff --git a/llvm/include/llvm/Transforms/Instrumentation.h b/llvm/include/llvm/Transforms/Instrumentation.h
index 03108bacb0da..0c822999aecf 100644
--- a/llvm/include/llvm/Transforms/Instrumentation.h
+++ b/llvm/include/llvm/Transforms/Instrumentation.h
@@ -78,7 +78,7 @@ struct GCOVOptions {
 ModulePass *createGCOVProfilerPass(const GCOVOptions &Options =
                                    GCOVOptions::getDefault());
 
-// PGO Instrumention. Parameter IsCS indicates if this is the context senstive
+// PGO Instrumention. Parameter IsCS indicates if this is the context sensitive
 // instrumentation.
 ModulePass *createPGOInstrumentationGenLegacyPass(bool IsCS = false);
 ModulePass *
@@ -138,7 +138,7 @@ struct InstrProfOptions {
 };
 
 /// Insert frontend instrumentation based profiling. Parameter IsCS indicates if
-// this is the context senstive instrumentation.
+// this is the context sensitive instrumentation.
 ModulePass *createInstrProfilingLegacyPass(
     const InstrProfOptions &Options = InstrProfOptions(), bool IsCS = false);
 
diff --git a/llvm/lib/ProfileData/SampleProfReader.cpp b/llvm/lib/ProfileData/SampleProfReader.cpp
index 6058eddb13dc..a801ca1ef36d 100644
--- a/llvm/lib/ProfileData/SampleProfReader.cpp
+++ b/llvm/lib/ProfileData/SampleProfReader.cpp
@@ -53,7 +53,7 @@ using namespace sampleprof;
 // For ext-binary format profiles, the flag is set in the summary.
 static cl::opt<bool> ProfileIsFSDisciminator(
     "profile-isfs", cl::Hidden, cl::init(false),
-    cl::desc("Profile uses flow senstive discriminators"));
+    cl::desc("Profile uses flow sensitive discriminators"));
 
 /// Dump the function profile for \p FName.
 ///