[asan][test][win] Move MSVC-specific tests into a subdir

[alvinhochun]

Summary

This moves all but one remaining tests which use clang-cl and test
MSVC-specific behaviour into its own subdirectory. dll_host.cpp test
is excluded from the move because other tests also depend on its source
file, making it not MSVC-specific.

compiler-rt/test/asan/TestCases/Windows/msvc/coverage-dll-stdio.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
 // Test that coverage and MSVC CRT stdio work from a DLL. This ensures that the
 // __local_stdio_printf_options function isn't instrumented for coverage.
 
 // RUN: rm -rf %t && mkdir %t && cd %t
-// RUN: %clang_cl_asan -fsanitize-coverage=func,trace-pc-guard -Od %p/dll_host.cpp -Fet.exe
+// RUN: %clang_cl_asan -fsanitize-coverage=func,trace-pc-guard -Od %p/../dll_host.cpp -Fet.exe
 // RUN: %clang_cl_asan -fsanitize-coverage=func,trace-pc-guard -LD -Od %s -Fet.dll
 // RUN: %run ./t.exe t.dll 2>&1 | FileCheck %s
 
 #include <stdio.h>
 
 extern "C" __declspec(dllexport)
 int test_function() {
   printf("hello world\n");
   // CHECK: hello world
   return 0;
 }

compiler-rt/test/asan/TestCases/Windows/msvc/dll_and_lib.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
 // Just make sure we can link an implib into another DLL
 // This used to fail between r212699 and r212814.
 // RUN: %clang_cl_asan -DCONFIG=1 %s -c -Fo%t.1.obj
 // RUN: lld-link /nologo /DLL /OUT:%t.1.dll %t.1.obj %asan_dll_thunk
 // RUN: %clang_cl_asan -DCONFIG=2 %s -c -Fo%t.2.obj
 // RUN: lld-link /nologo /DLL /OUT:%t.2.dll %t.2.obj %t.1.lib %asan_dll_thunk
 // REQUIRES: asan-static-runtime
 // REQUIRES: lld-available

compiler-rt/test/asan/TestCases/Windows/msvc/dll_cerr.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
-// RUN: %clang_cl_asan -Od %p/dll_host.cpp -Fe%t
+// RUN: %clang_cl_asan -Od %p/../dll_host.cpp -Fe%t
 // RUN: %clang_cl_asan -LD -Od %s -Fe%t.dll
 // RUN: %run %t %t.dll 2>&1 | FileCheck %s
 
 // Test that it works correctly even with ICF enabled.
 // RUN: %clang_cl_asan -LD -Od %s -Fe%t.dll -link /OPT:REF /OPT:ICF
 // RUN: %run %t %t.dll 2>&1 | FileCheck %s
 
 #include <iostream>

compiler-rt/test/asan/TestCases/Windows/msvc/dll_control_c.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
-// RUN: %clang_cl_asan -Od %p/dll_host.cpp -Fe%t
+// RUN: %clang_cl_asan -Od %p/../dll_host.cpp -Fe%t
 // RUN: %clang_cl_asan -LD -O2 %s -Fe%t.dll
 // RUNX: %run %t %t.dll 2>&1 | FileCheck %s
 
 // Check that ASan does not CHECK fail when SEH is used around a crash from a
 // thread injected by control C.
 
 #include <stdio.h>
 #include <stdlib.h>

compiler-rt/test/asan/TestCases/Windows/msvc/dll_large_function.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
 // Make sure we can link a DLL with large functions which would mean
 // functions such as __asan_loadN and __asan_storeN will be called
 // from the DLL.  We simulate the large function with
 // -mllvm -asan-instrumentation-with-call-threshold=0.
 // RUN: %clang_cl_asan %s -c -Fo%t.obj -mllvm -asan-instrumentation-with-call-threshold=0
 // RUN: lld-link /nologo /DLL /OUT:%t.dll %t.obj %asan_dll_thunk
 // REQUIRES: asan-static-runtime
 // REQUIRES: lld-available
 
 void f(long* foo, long* bar) {
   // One load and one store
   *foo = *bar;
 }

compiler-rt/test/asan/TestCases/Windows/msvc/dll_seh.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
-// RUN: %clang_cl_asan -Od %p/dll_host.cpp -Fe%t
+// RUN: %clang_cl_asan -Od %p/../dll_host.cpp -Fe%t
 //
 // Check both -GS and -GS- builds:
 // RUN: %clang_cl_asan -GS  -LD -Od %s -Fe%t.dll
 // RUN: %run %t %t.dll
 //
 // RUN: %clang_cl_asan -GS- -LD -Od %s -Fe%t.dll
 // RUN: %run %t %t.dll
 

compiler-rt/test/asan/TestCases/Windows/msvc/iostream_sbo.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
 // First, check this works with the default ignorelist:
 // RUN: %clang_cl_asan -Od %s -Fe%t
 // RUN: echo "42" | %run %t 2>&1 | FileCheck %s
 //
 // Then, make sure it still works when a user uses their own ignorelist file:
-// RUN: %clang_cl_asan -Od %s -fsanitize-ignorelist=%p/../Helpers/initialization-ignorelist.txt -Fe%t2
+// RUN: %clang_cl_asan -Od %s -fsanitize-ignorelist=%p/../../Helpers/initialization-ignorelist.txt -Fe%t2
 // RUN: echo "42" | %run %t2 2>&1 | FileCheck %s
 
 #include <iostream>
 
 int main() {
   int i;
   std::cout << "Type i: ";
   std::cin >> i;
   return 0;
 // CHECK: Type i:
 // CHECK-NOT: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
 }

compiler-rt/test/asan/TestCases/Windows/msvc/lit.local.cfg.py

+import re
+
+if not re.match(r'.*-windows-msvc$', config.target_triple):
+    config.unsupported = True

compiler-rt/test/asan/TestCases/Windows/msvc/seh.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
 // Make sure that ASan works with SEH in both Clang and MSVC. MSVC uses a
 // different EH personality depending on the -GS setting, so test both -GS+ and
 // -GS-.
 //
 // RUN: cl -c %s -Fo%t.obj -DCOMPILE_SEH
 // RUN: %clangxx_asan -o %t.exe %s %t.obj
 // RUN: %run %t.exe
 //

compiler-rt/test/asan/TestCases/Windows/msvc/tls_init.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
 // RUN: %clang_cl_asan %s -Fe%t.exe /MD
 // RUN: %run %t.exe | FileCheck %s
 
 // CHECK: my_thread_callback
 // CHECK: ran_before_main: 1
 
 #include <windows.h>
 #include <stdio.h>

compiler-rt/test/asan/TestCases/Windows/msvc/use_after_return_linkage.cpp

-// UNSUPPORTED: target={{.*-windows-gnu}}
-
 // Make sure LIBCMT doesn't accidentally get added to the list of DEFAULTLIB
 // directives.
 
 // REQUIRES: asan-dynamic-runtime
 // RUN: %clang_cl_asan -LD %s | FileCheck %s
 // CHECK: Creating library
 // CHECK-NOT: LIBCMT
 
 void foo(int *p) { *p = 42; }
 
 __declspec(dllexport) void bar() {
   int x;
   foo(&x);
 }