[OpenMP] Mark Failing OpenMP Tests as XFAIL on Windows

This patch marks specific OpenMP runtime tests as XFAIL on Windows
due to failures reported in llvm#129023

Author: omjavaid

openmp/runtime/test/lit.cfg

@@ -137,6 +137,9 @@ if config.operating_system in ['Windows', 'Linux', 'FreeBSD', 'NetBSD', 'DragonF
 if config.operating_system in ['Linux']:
     config.available_features.add('hidden-helper')
 
+if config.operating_system == 'Windows':
+    config.available_features.add("windows")
+
 target_arch = getattr(config, 'target_arch', None)
 if target_arch:
   config.available_features.add(target_arch + '-target-arch')

openmp/runtime/test/transform/interchange/iterfor.cpp

@@ -1,3 +1,4 @@
+// XFAIL: windows
 // RUN: %libomp-cxx20-compile-and-run | FileCheck %s --match-full-lines
 
 #ifndef HEADER

openmp/runtime/test/transform/tile/iterfor.cpp

@@ -1,3 +1,4 @@
+// XFAIL: windows
 // RUN: %libomp-cxx20-compile-and-run | FileCheck %s --match-full-lines
 
 #ifndef HEADER

openmp/runtime/test/worksharing/for/omp_for_collapse_LowerTriangularLess.c

@@ -1,3 +1,4 @@
+// XFAIL: windows
 // RUN: %libomp-compile-and-run
 #include <stdio.h>
 #include <stdlib.h>

openmp/runtime/test/worksharing/for/omp_for_collapse_LowerTriangularLessEqual.c

@@ -1,3 +1,4 @@
+// XFAIL: windows
 // RUN: %libomp-compile-and-run
 #include <stdio.h>
 #include <stdlib.h>

openmp/runtime/test/worksharing/for/omp_for_collapse_UpperTriangular.c

@@ -1,3 +1,4 @@
+// XFAIL: windows
 // RUN: %libomp-compile-and-run
 #include <stdio.h>
 #include <stdlib.h>