diff --git a/llvm/lib/MC/MCParser/AsmParser.cpp b/llvm/lib/MC/MCParser/AsmParser.cpp
--- a/llvm/lib/MC/MCParser/AsmParser.cpp
+++ b/llvm/lib/MC/MCParser/AsmParser.cpp
@@ -358,7 +358,6 @@
   enum class AssignmentKind {
     Set,
     Equiv,
-    Equal,
     LTOSetConditional,
   };
 
@@ -1975,7 +1974,7 @@
     // identifier '=' ... -> assignment statement
     Lex();
 
-    return parseAssignment(IDVal, AssignmentKind::Equal);
+    return parseAssignment(IDVal, AssignmentKind::Set);
 
   default: // Normal instruction or directive.
     break;
@@ -2938,8 +2937,7 @@
   MCSymbol *Sym;
   const MCExpr *Value;
   SMLoc ExprLoc = getTok().getLoc();
-  bool AllowRedef =
-      Kind == AssignmentKind::Set || Kind == AssignmentKind::Equal;
+  bool AllowRedef = Kind == AssignmentKind::Set;
   if (MCParserUtils::parseAssignmentExpression(Name, AllowRedef, *this, Sym,
                                                Value))
     return true;
@@ -2956,13 +2954,9 @@
 
   // Do the assignment.
   switch (Kind) {
-  case AssignmentKind::Equal:
-    Out.emitAssignment(Sym, Value);
-    break;
   case AssignmentKind::Set:
   case AssignmentKind::Equiv:
     Out.emitAssignment(Sym, Value);
-    Out.emitSymbolAttribute(Sym, MCSA_NoDeadStrip);
     break;
   case AssignmentKind::LTOSetConditional:
     if (Value->getKind() != MCExpr::SymbolRef)
diff --git a/llvm/test/MC/MachO/absolute.s b/llvm/test/MC/MachO/absolute.s
--- a/llvm/test/MC/MachO/absolute.s
+++ b/llvm/test/MC/MachO/absolute.s
@@ -79,9 +79,8 @@
 // CHECK:     Type: Section (0xE)
 // CHECK:     Section: __text (0x1)
 // CHECK:     RefType: UndefinedNonLazy (0x0)
-// CHECK:     Flags [ (0x220)
+// CHECK:     Flags [ (0x200)
 // CHECK:       AltEntry (0x200)
-// CHECK:       NoDeadStrip (0x20)
 // CHECK:     ]
 // CHECK:     Value: 0xFFFF0001
 // CHECK:   }
@@ -90,8 +89,7 @@
 // CHECK:     Type: Abs (0x2)
 // CHECK:     Section:  (0x0)
 // CHECK:     RefType: UndefinedNonLazy (0x0)
-// CHECK:     Flags [ (0x20)
-// CHECK:       NoDeadStrip (0x20)
+// CHECK:     Flags [ (0x0)
 // CHECK:     ]
 // CHECK:     Value: 0xFFFF0001
 // CHECK:   }
@@ -120,9 +118,8 @@
 // CHECK:     Type: Section (0xE)
 // CHECK:     Section: __text (0x1)
 // CHECK:     RefType: UndefinedNonLazy (0x0)
-// CHECK:     Flags [ (0x220)
-// CHECK:	AltEntry (0x200)
-// CHECK:       NoDeadStrip (0x20)
+// CHECK:     Flags [ (0x200)
+// CHECK:       AltEntry (0x200)
 // CHECK:     ]
 // CHECK:     Value: 0xFFFF0001
 // CHECK:   }
@@ -132,8 +129,7 @@
 // CHECK:     Type: Abs (0x2)
 // CHECK:     Section:  (0x0)
 // CHECK:     RefType: UndefinedNonLazy (0x0)
-// CHECK:     Flags [ (0x20)
-// CHECK:       NoDeadStrip (0x20)
+// CHECK:     Flags [ (0x0)
 // CHECK:     ]
 // CHECK:     Value: 0xFFFF0001
 // CHECK:   }
diff --git a/llvm/test/MC/WebAssembly/weak-alias.s b/llvm/test/MC/WebAssembly/weak-alias.s
--- a/llvm/test/MC/WebAssembly/weak-alias.s
+++ b/llvm/test/MC/WebAssembly/weak-alias.s
@@ -193,7 +193,7 @@
 # CHECK-NEXT:       - Index:           3
 # CHECK-NEXT:         Kind:            FUNCTION
 # CHECK-NEXT:         Name:            foo_alias
-# CHECK-NEXT:         Flags:           [ BINDING_WEAK, VISIBILITY_HIDDEN, NO_STRIP ]
+# CHECK-NEXT:         Flags:           [ BINDING_WEAK, VISIBILITY_HIDDEN ]
 # CHECK-NEXT:         Function:        0
 # CHECK-NEXT:       - Index:           4
 # CHECK-NEXT:         Kind:            FUNCTION
@@ -226,7 +226,7 @@
 # CHECK-NEXT:       - Index:           9
 # CHECK-NEXT:         Kind:            DATA
 # CHECK-NEXT:         Name:            bar_alias
-# CHECK-NEXT:         Flags:           [ BINDING_WEAK, VISIBILITY_HIDDEN, NO_STRIP ]
+# CHECK-NEXT:         Flags:           [ BINDING_WEAK, VISIBILITY_HIDDEN ]
 # CHECK-NEXT:         Segment:         0
 # CHECK-NEXT:         Size:            4
 # CHECK-NEXT:     SegmentInfo:
@@ -366,7 +366,7 @@
 # REF-NEXT:       - Index:           3
 # REF-NEXT:         Kind:            FUNCTION
 # REF-NEXT:         Name:            foo_alias
-# REF-NEXT:         Flags:           [ BINDING_WEAK, VISIBILITY_HIDDEN, NO_STRIP ]
+# REF-NEXT:         Flags:           [ BINDING_WEAK, VISIBILITY_HIDDEN ]
 # REF-NEXT:         Function:        0
 # REF-NEXT:       - Index:           4
 # REF-NEXT:         Kind:            FUNCTION
@@ -404,7 +404,7 @@
 # REF-NEXT:       - Index:           10
 # REF-NEXT:         Kind:            DATA
 # REF-NEXT:         Name:            bar_alias
-# REF-NEXT:         Flags:           [ BINDING_WEAK, VISIBILITY_HIDDEN, NO_STRIP ]
+# REF-NEXT:         Flags:           [ BINDING_WEAK, VISIBILITY_HIDDEN ]
 # REF-NEXT:         Segment:         0
 # REF-NEXT:         Size:            4
 # REF-NEXT:     SegmentInfo: