Index: include/llvm/BinaryFormat/COFF.h
===================================================================
--- include/llvm/BinaryFormat/COFF.h
+++ include/llvm/BinaryFormat/COFF.h
@@ -376,7 +376,8 @@
   IMAGE_REL_ARM_MOV32T = 0x0011,
   IMAGE_REL_ARM_BRANCH20T = 0x0012,
   IMAGE_REL_ARM_BRANCH24T = 0x0014,
-  IMAGE_REL_ARM_BLX23T = 0x0015
+  IMAGE_REL_ARM_BLX23T = 0x0015,
+  IMAGE_REL_ARM_PAIR = 0x0016,
 };
 
 enum RelocationTypesARM64 : unsigned {
@@ -397,6 +398,7 @@
   IMAGE_REL_ARM64_ADDR64 = 0x000E,
   IMAGE_REL_ARM64_BRANCH19 = 0x000F,
   IMAGE_REL_ARM64_BRANCH14 = 0x0010,
+  IMAGE_REL_ARM64_REL32 = 0x0011,
 };
 
 enum COMDATType : unsigned {
Index: lib/Object/COFFObjectFile.cpp
===================================================================
--- lib/Object/COFFObjectFile.cpp
+++ lib/Object/COFFObjectFile.cpp
@@ -1243,6 +1243,7 @@
     LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH20T);
     LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BRANCH24T);
     LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_BLX23T);
+    LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM_PAIR);
     default:
       return "Unknown";
     }
@@ -1266,6 +1267,7 @@
     LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM64_ADDR64);
     LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM64_BRANCH19);
     LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM64_BRANCH14);
+    LLVM_COFF_SWITCH_RELOC_TYPE_NAME(IMAGE_REL_ARM64_REL32);
     default:
       return "Unknown";
     }
Index: lib/ObjectYAML/COFFYAML.cpp
===================================================================
--- lib/ObjectYAML/COFFYAML.cpp
+++ lib/ObjectYAML/COFFYAML.cpp
@@ -194,6 +194,7 @@
   ECase(IMAGE_REL_ARM_BRANCH20T);
   ECase(IMAGE_REL_ARM_BRANCH24T);
   ECase(IMAGE_REL_ARM_BLX23T);
+  ECase(IMAGE_REL_ARM_PAIR);
 }
 
 void ScalarEnumerationTraits<COFF::RelocationTypesARM64>::enumeration(
@@ -215,6 +216,7 @@
   ECase(IMAGE_REL_ARM64_ADDR64);
   ECase(IMAGE_REL_ARM64_BRANCH19);
   ECase(IMAGE_REL_ARM64_BRANCH14);
+  ECase(IMAGE_REL_ARM64_REL32);
 }
 
 void ScalarEnumerationTraits<COFF::WindowsSubsystem>::enumeration(