diff --git a/lib/Target/ARM/ARMConstantIslandPass.cpp b/lib/Target/ARM/ARMConstantIslandPass.cpp
index e27e11c39ad..d01be5c5844 100644
--- a/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -467,8 +467,8 @@ bool ARMConstantIslands::runOnMachineFunction(MachineFunction &mf) {
     bool CPChange = false;
     for (unsigned i = 0, e = CPUsers.size(); i != e; ++i)
       // For most inputs, it converges in no more than 5 iterations.
-      // If it doens't end in 10, the input may have huge BB or many CPEs.
-      // In this case, we will try differnt heuristics.
+      // If it doesn't end in 10, the input may have huge BB or many CPEs.
+      // In this case, we will try different heuristics.
       CPChange |= handleConstantPoolUser(i, NoCPIters >= CPMaxIteration / 2);
     if (CPChange && ++NoCPIters > CPMaxIteration)
       report_fatal_error("Constant Island pass failed to converge!");
diff --git a/unittests/ProfileData/InstrProfTest.cpp b/unittests/ProfileData/InstrProfTest.cpp
index a80be3d444a..e3999a4ed0b 100644
--- a/unittests/ProfileData/InstrProfTest.cpp
+++ b/unittests/ProfileData/InstrProfTest.cpp
@@ -482,7 +482,7 @@ TEST_P(MaybeSparseInstrProfTest, get_icall_data_merge1) {
                               {uint64_t(callee3), 3}};
   Record11.addValueData(IPVK_IndirectCallTarget, 4, VD4, 3, nullptr);
 
-  // A differnt record for the same caller.
+  // A different record for the same caller.
   Record12.reserveSites(IPVK_IndirectCallTarget, 5);
   InstrProfValueData VD02[] = {{uint64_t(callee2), 5}, {uint64_t(callee3), 3}};
   Record12.addValueData(IPVK_IndirectCallTarget, 0, VD02, 2, nullptr);