diff --git a/llvm/include/llvm/IR/PassInstrumentation.h b/llvm/include/llvm/IR/PassInstrumentation.h
--- a/llvm/include/llvm/IR/PassInstrumentation.h
+++ b/llvm/include/llvm/IR/PassInstrumentation.h
@@ -127,8 +127,6 @@
   void addClassToPassName(StringRef ClassName, StringRef PassName);
   /// Get the pass name for a given pass class name.
   StringRef getPassNameForClassName(StringRef ClassName);
-  /// Whether or not the class to pass name map contains the pass name.
-  bool hasPassName(StringRef PassName);
 
 private:
   friend class PassInstrumentation;
diff --git a/llvm/lib/IR/PassInstrumentation.cpp b/llvm/lib/IR/PassInstrumentation.cpp
--- a/llvm/lib/IR/PassInstrumentation.cpp
+++ b/llvm/lib/IR/PassInstrumentation.cpp
@@ -22,14 +22,6 @@
   ClassToPassName[ClassName] = PassName.str();
 }
 
-bool PassInstrumentationCallbacks::hasPassName(StringRef PassName) {
-  for (const auto &E : ClassToPassName) {
-    if (E.getValue() == PassName)
-      return true;
-  }
-  return false;
-}
-
 StringRef
 PassInstrumentationCallbacks::getPassNameForClassName(StringRef ClassName) {
   return ClassToPassName[ClassName];
diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp
--- a/llvm/lib/Passes/PassBuilder.cpp
+++ b/llvm/lib/Passes/PassBuilder.cpp
@@ -459,14 +459,6 @@
 #define CGSCC_ANALYSIS(NAME, CREATE_PASS)                                      \
   PIC->addClassToPassName(decltype(CREATE_PASS)::name(), NAME);
 #include "PassRegistry.def"
-    for (const auto &P : printBeforePasses()) {
-      if (!PIC->hasPassName(P))
-        report_fatal_error("unrecognized pass name: " + P);
-    }
-    for (const auto &P : printAfterPasses()) {
-      if (!PIC->hasPassName(P))
-        report_fatal_error("unrecognized pass name: " + P);
-    }
   }
 }
 
diff --git a/llvm/test/Other/print-before-after.ll b/llvm/test/Other/print-before-after.ll
--- a/llvm/test/Other/print-before-after.ll
+++ b/llvm/test/Other/print-before-after.ll
@@ -1,5 +1,5 @@
-; RUN: not --crash opt < %s -disable-output -passes='no-op-module' -print-before=bleh 2>&1 | FileCheck %s --check-prefix=NONE --allow-empty
-; RUN: not --crash opt < %s -disable-output -passes='no-op-module' -print-after=bleh 2>&1 | FileCheck %s --check-prefix=NONE --allow-empty
+; RUN: opt < %s -disable-output -passes='no-op-module' -print-before=bleh 2>&1 | FileCheck %s --check-prefix=NONE --allow-empty
+; RUN: opt < %s -disable-output -passes='no-op-module' -print-after=bleh 2>&1 | FileCheck %s --check-prefix=NONE --allow-empty
 ; RUN: opt < %s -disable-output -passes='no-op-module' -print-before=no-op-function 2>&1 | FileCheck %s --check-prefix=NONE --allow-empty
 ; RUN: opt < %s -disable-output -passes='no-op-module' -print-after=no-op-function 2>&1 | FileCheck %s --check-prefix=NONE --allow-empty
 ; RUN: opt < %s -disable-output -passes='no-op-module,no-op-function' -print-before=no-op-module 2>&1 | FileCheck %s --check-prefix=ONCE