diff --git a/bolt/test/AArch64/Inputs/plt-gnu-ld.yaml b/bolt/test/AArch64/Inputs/plt-gnu-ld.yaml
--- a/bolt/test/AArch64/Inputs/plt-gnu-ld.yaml
+++ b/bolt/test/AArch64/Inputs/plt-gnu-ld.yaml
@@ -175,6 +175,7 @@
         Symbol:          .text
         Type:            R_AARCH64_ADD_ABS_LO12_NC
         Addend:          56
+      - Offset:          0x400540
         Symbol:          '__libc_start_main@@GLIBC_2.17'
         Type:            R_AARCH64_CALL26
       - Offset:          0x400544
diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/select-int-ext.mir b/llvm/test/CodeGen/AArch64/GlobalISel/select-int-ext.mir
--- a/llvm/test/CodeGen/AArch64/GlobalISel/select-int-ext.mir
+++ b/llvm/test/CodeGen/AArch64/GlobalISel/select-int-ext.mir
@@ -128,7 +128,6 @@
 ---
 name:            anyext_v2s64_from_v2s32
 alignment:       4
-tracksRegLiveness: true
 legalized:       true
 regBankSelected: true
 tracksRegLiveness: true
diff --git a/llvm/test/CodeGen/ARM/machine-sink-multidef.mir b/llvm/test/CodeGen/ARM/machine-sink-multidef.mir
--- a/llvm/test/CodeGen/ARM/machine-sink-multidef.mir
+++ b/llvm/test/CodeGen/ARM/machine-sink-multidef.mir
@@ -40,7 +40,6 @@
 liveins:
   - { reg: '$r0', virtual-reg: '%8' }
   - { reg: '$r1', virtual-reg: '%9' }
-liveins:         []
 body:             |
   ; CHECK-LABEL: name: g
   ; CHECK: bb.0:
diff --git a/llvm/test/CodeGen/PowerPC/jump-tables-collapse-rotate-remove-SrcMI.mir b/llvm/test/CodeGen/PowerPC/jump-tables-collapse-rotate-remove-SrcMI.mir
--- a/llvm/test/CodeGen/PowerPC/jump-tables-collapse-rotate-remove-SrcMI.mir
+++ b/llvm/test/CodeGen/PowerPC/jump-tables-collapse-rotate-remove-SrcMI.mir
@@ -31,7 +31,6 @@
 frameInfo:
   maxAlignment:    1
 machineFunctionInfo: {}
-body:             |
 body:             |
   bb.0.entry:
     liveins: $x3, $x4
diff --git a/llvm/test/CodeGen/PowerPC/mi-peephole.mir b/llvm/test/CodeGen/PowerPC/mi-peephole.mir
--- a/llvm/test/CodeGen/PowerPC/mi-peephole.mir
+++ b/llvm/test/CodeGen/PowerPC/mi-peephole.mir
@@ -15,7 +15,6 @@
 frameInfo:
   maxAlignment:    1
 machineFunctionInfo: {}
-body:             |
 body:             |
   bb.0.entry:
     liveins: $x3, $x4
diff --git a/llvm/test/CodeGen/X86/fixup-bw-inst.mir b/llvm/test/CodeGen/X86/fixup-bw-inst.mir
--- a/llvm/test/CodeGen/X86/fixup-bw-inst.mir
+++ b/llvm/test/CodeGen/X86/fixup-bw-inst.mir
@@ -139,7 +139,8 @@
 alignment:       16
 tracksRegLiveness: true
 liveins:
-  - { reg: '$ch', reg: '$bl' }
+  - { reg: '$ch' }
+  - { reg: '$bl' }
 body:             |
   bb.0:
     liveins: $ch, $bl
diff --git a/llvm/test/tools/llvm-objcopy/COFF/redefine-symbol.test b/llvm/test/tools/llvm-objcopy/COFF/redefine-symbol.test
--- a/llvm/test/tools/llvm-objcopy/COFF/redefine-symbol.test
+++ b/llvm/test/tools/llvm-objcopy/COFF/redefine-symbol.test
@@ -39,7 +39,6 @@
   - Name:            .text
     Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
   - Name:            .rdata
-    Characteristics: [  ]
     Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
 symbols:
   - Name:            .text
diff --git a/llvm/test/tools/llvm-objcopy/ELF/strip-all-gnu.test b/llvm/test/tools/llvm-objcopy/ELF/strip-all-gnu.test
--- a/llvm/test/tools/llvm-objcopy/ELF/strip-all-gnu.test
+++ b/llvm/test/tools/llvm-objcopy/ELF/strip-all-gnu.test
@@ -25,9 +25,8 @@
     Type:            SHT_STRTAB
     Flags:           [ SHF_ALLOC ]
   - Name:            .symtab.dyn
-    Type:            SHT_SYMTAB
-    Flags:           [ SHF_ALLOC ]
     Type:            SHT_NOBITS
+    Flags:           [ SHF_ALLOC ]
   - Name:            .text
     Type:            SHT_PROGBITS
     Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
diff --git a/llvm/test/tools/llvm-reduce/mir/preserve-func-info.mir b/llvm/test/tools/llvm-reduce/mir/preserve-func-info.mir
--- a/llvm/test/tools/llvm-reduce/mir/preserve-func-info.mir
+++ b/llvm/test/tools/llvm-reduce/mir/preserve-func-info.mir
@@ -45,7 +45,6 @@
 tracksDebugUserValues: true
 callsEHReturn: true
 callsUnwindInit: true
-callsUnwindInit: true
 hasEHCatchret: true
 hasEHScopes: true
 hasEHFunclets: true
diff --git a/llvm/unittests/Support/YAMLIOTest.cpp b/llvm/unittests/Support/YAMLIOTest.cpp
--- a/llvm/unittests/Support/YAMLIOTest.cpp
+++ b/llvm/unittests/Support/YAMLIOTest.cpp
@@ -105,6 +105,18 @@
   EXPECT_TRUE(!!yin.error());
 }
 
+//
+// Test the reading of a map containing duplicated keys
+//
+TEST(YAMLIO, TestMapDuplicatedKeysRead) {
+  FooBar doc;
+  // YAML spec: "The content of a mapping node is an unordered set of key/value
+  // node pairs, with the restriction that each of the keys is unique."
+  Input yin("{foo: 3\n bar: 5\nfoo: 3}", nullptr, suppressErrorMessages);
+  yin >> doc;
+  EXPECT_TRUE(!!yin.error());
+}
+
 //
 // Test the reading of a yaml sequence of mappings
 //
diff --git a/llvm/unittests/TextAPI/TextStubV4Tests.cpp b/llvm/unittests/TextAPI/TextStubV4Tests.cpp
--- a/llvm/unittests/TextAPI/TextStubV4Tests.cpp
+++ b/llvm/unittests/TextAPI/TextStubV4Tests.cpp
@@ -936,7 +936,8 @@
   static const char TBDv4File[] =
       "--- !tapi-tbd\n"
       "tbd-version: 4\n"
-      "targets:  [ i386-macos, x86_64-macos, x86_64-ios ]\n"
+      "targets:  [ i386-macos, x86_64-macos, x86_64-ios, i386-maccatalyst, "
+      "x86_64-maccatalyst ]\n"
       "uuids:\n"
       "  - target: i386-macos\n"
       "    value: 00000000-0000-0000-0000-000000000000\n"
@@ -944,6 +945,10 @@
       "    value: 11111111-1111-1111-1111-111111111111\n"
       "  - target: x86_64-ios\n"
       "    value: 11111111-1111-1111-1111-111111111111\n"
+      "  - target: i386-maccatalyst\n"
+      "    value: 00000000-0000-0000-0000-000000000000\n"
+      "  - target: x86_64-maccatalyst\n"
+      "    value: 11111111-1111-1111-1111-111111111111\n"
       "flags: [ flat_namespace, installapi ]\n"
       "install-name: Umbrella.framework/Umbrella\n"
       "current-version: 1.2.3\n"
@@ -970,6 +975,13 @@
       "    symbols: [_symB]\n"
       "  - targets: [ x86_64-macos, x86_64-ios ]\n"
       "    symbols: [_symAB]\n"
+      "  - targets: [ i386-maccatalyst ]\n"
+      "    weak-symbols: [ _symC ]\n"
+      "  - targets: [ i386-maccatalyst, x86_64-maccatalyst ]\n"
+      "    symbols: [ _symA ]\n"
+      "    objc-classes: [ Class1 ]\n"
+      "  - targets: [ x86_64-maccatalyst ]\n"
+      "    symbols: [ _symAB ]\n"
       "reexports:\n"
       "  - targets: [ i386-macos ]\n"
       "    symbols: [_symC]\n"
@@ -986,22 +998,6 @@
       "    objc-ivars: []\n"
       "    weak-symbols: []\n"
       "    thread-local-symbols: []\n"
-      "tbd-version:     4\n"
-      "targets:         [ i386-maccatalyst, x86_64-maccatalyst ]\n"
-      "uuids:\n"
-      "  - target:          i386-maccatalyst\n"
-      "    value:           00000000-0000-0000-0000-000000000000\n"
-      "  - target:          x86_64-maccatalyst\n"
-      "    value:           11111111-1111-1111-1111-111111111111\n"
-      "install-name:    '/System/Library/Frameworks/A.framework/A'\n"
-      "exports:\n"
-      "  - targets:         [ i386-maccatalyst ]\n"
-      "    weak-symbols:    [ _symC ]\n"
-      "  - targets:         [ i386-maccatalyst, x86_64-maccatalyst ]\n"
-      "    symbols:         [ _symA ]\n"
-      "    objc-classes:    [ Class1 ]\n"
-      "  - targets:         [ x86_64-maccatalyst ]\n"
-      "    symbols:         [ _symAB ]\n"
       "...\n";
 
   Expected<TBDFile> ResultA =