diff --git a/llvm/test/DebugInfo/NVPTX/debug-file-loc-only.ll b/llvm/test/DebugInfo/NVPTX/debug-file-loc-only.ll
--- a/llvm/test/DebugInfo/NVPTX/debug-file-loc-only.ll
+++ b/llvm/test/DebugInfo/NVPTX/debug-file-loc-only.ll
@@ -27,8 +27,8 @@
   ret void, !dbg !11
 }
 
-; CHECK-DAG: .file [[FOO]] "/source/dir{{[/\\]}}foo.h"
-; CHECK-DAG: .file [[BAR]] "/source/dir{{[/\\]}}bar.cu"
+; CHECK-DAG: .file [[FOO]] "/source/dir{{/|\\\\}}foo.h"
+; CHECK-DAG: .file [[BAR]] "/source/dir{{/|\\\\}}bar.cu"
 
 ; CHECK-NOT: .section .debug{{.*}}
 
diff --git a/llvm/test/DebugInfo/NVPTX/debug-file-loc.ll b/llvm/test/DebugInfo/NVPTX/debug-file-loc.ll
--- a/llvm/test/DebugInfo/NVPTX/debug-file-loc.ll
+++ b/llvm/test/DebugInfo/NVPTX/debug-file-loc.ll
@@ -27,8 +27,8 @@
   ret void, !dbg !11
 }
 
-; CHECK-DAG: .file [[FOO]] "/source/dir{{[/\\]}}foo.h"
-; CHECK-DAG: .file [[BAR]] "/source/dir{{[/\\]}}bar.cu"
+; CHECK-DAG: .file [[FOO]] "/source/dir{{/\\\\}}foo.h"
+; CHECK-DAG: .file [[BAR]] "/source/dir{{/\\\\}}bar.cu"
 ; CHECK: .section .debug_abbrev
 ; CHECK-NEXT: {
 ; CHECK-NEXT: .b8 1                                // Abbreviation Code
diff --git a/llvm/test/DebugInfo/NVPTX/dwarf-file-dir.ll b/llvm/test/DebugInfo/NVPTX/dwarf-file-dir.ll
--- a/llvm/test/DebugInfo/NVPTX/dwarf-file-dir.ll
+++ b/llvm/test/DebugInfo/NVPTX/dwarf-file-dir.ll
@@ -1,10 +1,7 @@
 ; RUN: llc < %s -mtriple=nvptx64-nvidia-cuda | FileCheck --check-prefix=CHECK-NODIR %s
 ; RUN: llc < %s -mtriple=nvptx64-nvidia-cuda -dwarf-directory=1 | FileCheck --check-prefix=CHECK-DIR %s
 
-; compilation on Windows results in: /tmp/dbginfo/a\\a.cpp
-; UNSUPPORTED: windows
-
-; CHECK-NODIR: .file   {{[0-9]+}} "/tmp/dbginfo/a/a.cpp"
+; CHECK-NODIR: .file   {{[0-9]+}} "/tmp/dbginfo/a{{/|\\\\}}a.cpp"
 ;
 ; ptxas does not support .file directory syntax, but it can still be
 ; forced by -dwarf-directory=1