Index: llvm/test/tools/llvm-readobj/ELF/note-llvmompoffload.test
===================================================================
--- /dev/null
+++ llvm/test/tools/llvm-readobj/ELF/note-llvmompoffload.test
@@ -0,0 +1,68 @@
+## Test that llvm-readobj is able to recognize LLVMOMPOFFLOAD ELF notes.
+
+# RUN: yaml2obj %s -o %t.64le -DBITS=64 -DENCODING=LSB
+# RUN: llvm-readobj --notes %t.64le | FileCheck %s --match-full-lines --check-prefix=NOTES
+# RUN: llvm-readelf --notes %t.64le | FileCheck %s --match-full-lines --check-prefix=NOTES-GNU
+# RUN: yaml2obj %s -o %t.64be -DBITS=64 -DENCODING=MSB
+# RUN: llvm-readobj --notes %t.64be | FileCheck %s --match-full-lines --check-prefix=NOTES
+# RUN: llvm-readelf --notes %t.64be | FileCheck %s --match-full-lines --check-prefix=NOTES-GNU
+# RUN: yaml2obj %s -o %t.32le -DBITS=32 -DENCODING=LSB
+# RUN: llvm-readobj --notes %t.32le | FileCheck %s --match-full-lines --check-prefix=NOTES
+# RUN: llvm-readelf --notes %t.32le | FileCheck %s --match-full-lines --check-prefix=NOTES-GNU
+# RUN: yaml2obj %s -o %t.32be -DBITS=32 -DENCODING=MSB
+# RUN: llvm-readobj --notes %t.32be | FileCheck %s --match-full-lines --check-prefix=NOTES
+# RUN: llvm-readelf --notes %t.32be | FileCheck %s --match-full-lines --check-prefix=NOTES-GNU
+
+# NOTES:      Notes [
+# NOTES-NEXT:   NoteSection {
+# NOTES-NEXT:     Name: .note.openmp
+# NOTES-NEXT:     Offset: {{.*}}
+# NOTES-NEXT:     Size: {{.*}}
+# NOTES-NEXT:     Note {
+# NOTES-NEXT:       Owner: LLVMOMPOFFLOAD
+# NOTES-NEXT:       Data size: 0x3
+# NOTES-NEXT:       Type: NT_LLVM_OPENMP_OFFLOAD_VERSION (image format version)
+# NOTES-NEXT:       Version: 1.0
+# NOTES-NEXT:     }
+# NOTES-NEXT:     Note {
+# NOTES-NEXT:       Owner: LLVMOMPOFFLOAD
+# NOTES-NEXT:       Data size: 0x4
+# NOTES-NEXT:       Type: NT_LLVM_OPENMP_OFFLOAD_PRODUCER (producing toolchain)
+# NOTES-NEXT:       Producer: LLVM
+# NOTES-NEXT:     }
+# NOTES-NEXT:     Note {
+# NOTES-NEXT:       Owner: LLVMOMPOFFLOAD
+# NOTES-NEXT:       Data size: 0x9
+# NOTES-NEXT:       Type: NT_LLVM_OPENMP_OFFLOAD_PRODUCER_VERSION (producing toolchain version)
+# NOTES-NEXT:       Producer version: 13.0.0git
+# NOTES-NEXT:     }
+# NOTES-NEXT:   }
+# NOTES-NEXT: ]
+
+# NOTES-GNU:      Displaying notes found in: .note.openmp
+# NOTES-GNU-NEXT:   Owner                Data size        Description
+# NOTES-GNU-NEXT:   LLVMOMPOFFLOAD       0x00000003       NT_LLVM_OPENMP_OFFLOAD_VERSION (image format version)
+# NOTES-GNU-NEXT:     Version: 1.0
+# NOTES-GNU-NEXT:   LLVMOMPOFFLOAD       0x00000004       NT_LLVM_OPENMP_OFFLOAD_PRODUCER (producing toolchain)
+# NOTES-GNU-NEXT:     Producer: LLVM
+# NOTES-GNU-NEXT:   LLVMOMPOFFLOAD       0x00000009       NT_LLVM_OPENMP_OFFLOAD_PRODUCER_VERSION (producing toolchain version)
+# NOTES-GNU-NEXT:     Producer version: 13.0.0git
+
+--- !ELF
+FileHeader:
+  Class: ELFCLASS[[BITS]]
+  Data:  ELFDATA2[[ENCODING]]
+  Type:  ET_REL
+Sections:
+  - Name: .note.openmp
+    Type: SHT_NOTE
+    Notes:
+      - Name: LLVMOMPOFFLOAD
+        Type: 1 # NT_LLVM_OPENMP_OFFLOAD_VERSION
+        Desc: '312e30'
+      - Name: LLVMOMPOFFLOAD
+        Type: 2 # NT_LLVM_OPENMP_OFFLOAD_PRODUCER
+        Desc: '4c4c564d'
+      - Name: LLVMOMPOFFLOAD
+        Type: 3 # NT_LLVM_OPENMP_OFFLOAD_PRODUCER_VERSION
+        Desc: '31332e302e30676974'
Index: llvm/tools/llvm-readobj/ELFDumper.cpp
===================================================================
--- llvm/tools/llvm-readobj/ELFDumper.cpp
+++ llvm/tools/llvm-readobj/ELFDumper.cpp
@@ -4906,7 +4906,7 @@
   return OS.str();
 }
 
-static StringRef getGNUGoldVersion(ArrayRef<uint8_t> Desc) {
+static StringRef getDescAsStringRef(ArrayRef<uint8_t> Desc) {
   return StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size());
 }
 
@@ -4930,7 +4930,7 @@
     break;
   }
   case ELF::NT_GNU_GOLD_VERSION:
-    OS << "    Version: " << getGNUGoldVersion(Desc);
+    OS << "    Version: " << getDescAsStringRef(Desc);
     break;
   case ELF::NT_GNU_PROPERTY_TYPE_0:
     OS << "    Properties:";
@@ -4942,6 +4942,26 @@
   return true;
 }
 
+template <typename ELFT>
+static bool printLLVMOMPOFFLOADNote(raw_ostream &OS, uint32_t NoteType,
+                                    ArrayRef<uint8_t> Desc) {
+  switch (NoteType) {
+  default:
+    return false;
+  case ELF::NT_LLVM_OPENMP_OFFLOAD_VERSION:
+    OS << "    Version: " << getDescAsStringRef(Desc);
+    break;
+  case ELF::NT_LLVM_OPENMP_OFFLOAD_PRODUCER:
+    OS << "    Producer: " << getDescAsStringRef(Desc);
+    break;
+  case ELF::NT_LLVM_OPENMP_OFFLOAD_PRODUCER_VERSION:
+    OS << "    Producer version: " << getDescAsStringRef(Desc);
+    break;
+  }
+  OS << '\n';
+  return true;
+}
+
 static const EnumEntry<unsigned> FreeBSDFeatureCtlFlags[] = {
     {"ASLR_DISABLE", NT_FREEBSD_FCTL_ASLR_DISABLE},
     {"PROTMAX_DISABLE", NT_FREEBSD_FCTL_PROTMAX_DISABLE},
@@ -5254,6 +5274,15 @@
     {ELF::NT_AMDGPU_METADATA, "NT_AMDGPU_METADATA (AMDGPU Metadata)"},
 };
 
+static const NoteType LLVMOMPOFFLOADNoteTypes[] = {
+    {ELF::NT_LLVM_OPENMP_OFFLOAD_VERSION,
+     "NT_LLVM_OPENMP_OFFLOAD_VERSION (image format version)"},
+    {ELF::NT_LLVM_OPENMP_OFFLOAD_PRODUCER,
+     "NT_LLVM_OPENMP_OFFLOAD_PRODUCER (producing toolchain)"},
+    {ELF::NT_LLVM_OPENMP_OFFLOAD_PRODUCER_VERSION,
+     "NT_LLVM_OPENMP_OFFLOAD_PRODUCER_VERSION (producing toolchain version)"},
+};
+
 static const NoteType CoreNoteTypes[] = {
     {ELF::NT_PRSTATUS, "NT_PRSTATUS (prstatus structure)"},
     {ELF::NT_FPREGSET, "NT_FPREGSET (floating point registers)"},
@@ -5347,6 +5376,8 @@
     return FindNote(AMDNoteTypes);
   if (Name == "AMDGPU")
     return FindNote(AMDGPUNoteTypes);
+  if (Name == "LLVMOMPOFFLOAD")
+    return FindNote(LLVMOMPOFFLOADNoteTypes);
 
   if (ELFType == ELF::ET_CORE)
     return FindNote(CoreNoteTypes);
@@ -5482,6 +5513,9 @@
         OS << "    " << N.Type << ":\n        " << N.Value << '\n';
         return Error::success();
       }
+    } else if (Name == "LLVMOMPOFFLOAD") {
+      if (printLLVMOMPOFFLOADNote<ELFT>(OS, Type, Descriptor))
+        return Error::success();
     } else if (Name == "CORE") {
       if (Type == ELF::NT_FILE) {
         DataExtractor DescExtractor(Descriptor,
@@ -6728,7 +6762,7 @@
     break;
   }
   case ELF::NT_GNU_GOLD_VERSION:
-    W.printString("Version", getGNUGoldVersion(Desc));
+    W.printString("Version", getDescAsStringRef(Desc));
     break;
   case ELF::NT_GNU_PROPERTY_TYPE_0:
     ListScope D(W, "Property");
@@ -6739,6 +6773,26 @@
   return true;
 }
 
+template <typename ELFT>
+static bool printLLVMOMPOFFLOADNoteLLVMStyle(uint32_t NoteType,
+                                             ArrayRef<uint8_t> Desc,
+                                             ScopedPrinter &W) {
+  switch (NoteType) {
+  default:
+    return false;
+  case ELF::NT_LLVM_OPENMP_OFFLOAD_VERSION:
+    W.printString("Version", getDescAsStringRef(Desc));
+    break;
+  case ELF::NT_LLVM_OPENMP_OFFLOAD_PRODUCER:
+    W.printString("Producer", getDescAsStringRef(Desc));
+    break;
+  case ELF::NT_LLVM_OPENMP_OFFLOAD_PRODUCER_VERSION:
+    W.printString("Producer version", getDescAsStringRef(Desc));
+    break;
+  }
+  return true;
+}
+
 static void printCoreNoteLLVMStyle(const CoreNote &Note, ScopedPrinter &W) {
   W.printNumber("Page Size", Note.PageSize);
   for (const CoreFileMapping &Mapping : Note.Mappings) {
@@ -6806,6 +6860,9 @@
         W.printString(N.Type, N.Value);
         return Error::success();
       }
+    } else if (Name == "LLVMOMPOFFLOAD") {
+      if (printLLVMOMPOFFLOADNoteLLVMStyle<ELFT>(Type, Descriptor, W))
+        return Error::success();
     } else if (Name == "CORE") {
       if (Type == ELF::NT_FILE) {
         DataExtractor DescExtractor(Descriptor,