diff --git a/llvm/test/tools/llvm-dwarfdump/X86/output.s b/llvm/test/tools/llvm-dwarfdump/X86/output.s
--- a/llvm/test/tools/llvm-dwarfdump/X86/output.s
+++ b/llvm/test/tools/llvm-dwarfdump/X86/output.s
@@ -1,21 +1,21 @@
-# RUN: rm -f %t1.txt %t2.txt %t3.txt
-# RUN: llvm-mc %S/brief.s -filetype obj -triple x86_64-apple-darwin -o %t.o
-
-# RUN: llvm-dwarfdump -o=- %t.o | FileCheck %s
-
-# RUN: llvm-dwarfdump -o=%t1.txt %t.o
-# RUN: FileCheck %s --input-file %t1.txt
-
-# RUN: touch %t2.txt
-# RUN: llvm-dwarfdump -o=%t2.txt %t.o
-# RUN: FileCheck %s --input-file %t2.txt
-
-# RUN: touch %t3.txt
-# RUN: chmod 444 %t3.txt
-# RUN: not llvm-dwarfdump -o=%t3.txt %t.o 2>&1 | FileCheck %s  --check-prefix=ERROR1 -DFILE=%t3.txt
-
-# RUN: not llvm-dwarfdump -o= %t.o 2>&1 | FileCheck %s  --check-prefix=ERROR2
-
-# CHECK: DW_TAG_compile_unit
-# ERROR1: unable to open output file [[FILE]]: {{[pP]}}ermission denied
-# ERROR2: unable to open output file : {{[nN]}}o such file or directory
+# RUN: rm -f %t1.txt %t2.txt %t3.txt
+# RUN: llvm-mc %S/brief.s -filetype obj -triple x86_64-apple-darwin -o %t.o
+
+# RUN: llvm-dwarfdump -o=- %t.o | FileCheck %s
+
+# RUN: llvm-dwarfdump -o=%t1.txt %t.o
+# RUN: FileCheck %s --input-file %t1.txt
+
+# RUN: touch %t2.txt
+# RUN: llvm-dwarfdump -o=%t2.txt %t.o
+# RUN: FileCheck %s --input-file %t2.txt
+
+# RUN: touch %t3.txt
+# RUN: chmod 444 %t3.txt
+# RUN: not llvm-dwarfdump -o=%t3.txt %t.o 2>&1 | FileCheck %s  --check-prefix=ERROR1 -DFILE=%t3.txt -DMSG=%errc_EACCES
+
+# RUN: not llvm-dwarfdump -o= %t.o 2>&1 | FileCheck %s  --check-prefix=ERROR2 -DMSG=%errc_ENOENT
+
+# CHECK: DW_TAG_compile_unit
+# ERROR1: unable to open output file [[FILE]]: [[MSG]]
+# ERROR2: unable to open output file : [[MSG]]