diff --git a/llvm/test/tools/llvm-cxxfilt/delimiters.test b/llvm/test/tools/llvm-cxxfilt/delimiters.test
--- a/llvm/test/tools/llvm-cxxfilt/delimiters.test
+++ b/llvm/test/tools/llvm-cxxfilt/delimiters.test
@@ -29,7 +29,11 @@
 RUN:      '_Z3Foo~,,' \
 RUN:      '_Z3Foo⦙_Z3Bar' \
 RUN:      '_Z3Foo,,_Z3Bar::_Z3Baz  _Z3Foo,_Z3Bar:_Z3Baz' \
-RUN:      '_Z3Foo$ ._Z3Foo' | llvm-cxxfilt -n | FileCheck %s
+COM: Piping the echo output causes '⦙' to be converted to '?' in some
+COM: builds/environments. Redirect echo output to and from %t to work
+COM: around this. See D111072.
+RUN:      '_Z3Foo$ ._Z3Foo' > %t
+RUN:      llvm-cxxfilt -n < %t | FileCheck %s
 
 CHECK: ,,Foo!
 CHECK: Foo"