fix path checks

Author: frasercrmck

clang/test/Driver/opencl-libclc.cl

@@ -6,5 +6,5 @@
 // RUN: env LIBRARY_PATH=%S/Inputs/libclc/subdir %clang -### -target amdgcn-amd-amdhsa --no-offloadlib --libclc-lib=:libclc.bc %s 2>&1 | FileCheck %s --check-prefix CHECK-SUBDIR
 // RUN: env LIBRARY_PATH=%S/Inputs/libclc %clang -### -target amdgcn-amd-amdhsa --no-offloadlib --libclc-lib=:subdir/libclc.bc %s 2>&1 | FileCheck %s --check-prefix CHECK-SUBDIR
 
-// CHECK: -mlink-builtin-bitcode{{.*}}Inputs/libclc/libclc.bc
-// CHECK-SUBDIR: -mlink-builtin-bitcode{{.*}}Inputs/libclc/subdir/libclc.bc
+// CHECK: -mlink-builtin-bitcode{{.*}}Inputs{{/|\\\\}}libclc{{/|\\\\}}libclc.bc
+// CHECK-SUBDIR: -mlink-builtin-bitcode{{.*}}Inputs{{/|\\\\}}libclc{{/|\\\\}}subdir{{/|\\\\}}libclc.bc