diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 3a6f9b23c79..b8ab2a9c1bc 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3663,7 +3663,7 @@ void SelectionDAGBuilder::visitTargetIntrinsic(const CallInst &I,
 ///
 ///   Op = (Op & 0x007fffff) | 0x3f800000;
 ///
-/// where Op is the hexidecimal representation of floating point value.
+/// where Op is the hexadecimal representation of floating point value.
 static SDValue
 GetSignificand(SelectionDAG &DAG, SDValue Op, DebugLoc dl) {
   SDValue t1 = DAG.getNode(ISD::AND, dl, MVT::i32, Op,
@@ -3677,7 +3677,7 @@ GetSignificand(SelectionDAG &DAG, SDValue Op, DebugLoc dl) {
 ///
 ///   (float)(int)(((Op & 0x7f800000) >> 23) - 127);
 ///
-/// where Op is the hexidecimal representation of floating point value.
+/// where Op is the hexadecimal representation of floating point value.
 static SDValue
 GetExponent(SelectionDAG &DAG, SDValue Op, const TargetLowering &TLI,
             DebugLoc dl) {
diff --git a/lib/MC/MCParser/AsmLexer.cpp b/lib/MC/MCParser/AsmLexer.cpp
index 530e94e8d37..86a9674f2f7 100644
--- a/lib/MC/MCParser/AsmLexer.cpp
+++ b/lib/MC/MCParser/AsmLexer.cpp
@@ -282,7 +282,7 @@ AsmToken AsmLexer::LexDigit() {
                     (int64_t)Result);
   }
 
-  // Either octal or hexidecimal.
+  // Either octal or hexadecimal.
   long long Value;
   unsigned Radix = doLookAhead(CurPtr, 8);
   bool isHex = Radix == 16;
diff --git a/test/MC/X86/intel-syntax-hex.s b/test/MC/X86/intel-syntax-hex.s
index 35376c611bf..b3a19fbaa34 100644
--- a/test/MC/X86/intel-syntax-hex.s
+++ b/test/MC/X86/intel-syntax-hex.s
@@ -1,7 +1,7 @@
 // RUN: llvm-mc -triple x86_64-unknown-unknown -x86-asm-syntax=intel %s | FileCheck %s
 // rdar://12470373
 
-// Checks to make sure we parse the hexidecimal suffix properly.
+// Checks to make sure we parse the hexadecimal suffix properly.
 // CHECK: movl $10, %eax
   mov eax, 10
 // CHECK: movl $16, %eax
diff --git a/utils/unittest/googletest/gtest-printers.cc b/utils/unittest/googletest/gtest-printers.cc
index ed63c7b3b91..205a39425f0 100644
--- a/utils/unittest/googletest/gtest-printers.cc
+++ b/utils/unittest/googletest/gtest-printers.cc
@@ -127,7 +127,7 @@ namespace internal {
 // Depending on the value of a char (or wchar_t), we print it in one
 // of three formats:
 //   - as is if it's a printable ASCII (e.g. 'a', '2', ' '),
-//   - as a hexidecimal escape sequence (e.g. '\x7F'), or
+//   - as a hexadecimal escape sequence (e.g. '\x7F'), or
 //   - as a special escape sequence (e.g. '\r', '\n').
 enum CharFormat {
   kAsIs,
@@ -230,7 +230,7 @@ void PrintCharAndCodeTo(Char c, ostream* os) {
     return;
   *os << " (" << String::Format("%d", c).c_str();
 
-  // For more convenience, we print c's code again in hexidecimal,
+  // For more convenience, we print c's code again in hexadecimal,
   // unless c was already printed in the form '\x##' or the code is in
   // [1, 9].
   if (format == kHexEscape || (1 <= c && c <= 9)) {