Implement FileCheck tests for several test commands (#2747)

* Add missing expected.txt for test

* Diagnostics -> StdWriters in render test

* Allow specifying several test prefixes to run

`slang-test -- tests/foo tests/bar`

* Squash warnings in some tests

* Enable gfx debug layer in gfx test util

Makes this issue present consistently: https://github.com/shader-slang/slang/issues/2766

* Allow DebugDevice to return interfaces instantiated by the debugged object

* Check that we actaully have a shader cache for shader cache tests

* Implement FileCheck tests for several test commands

- SIMPLE, SIMPLE_EX
- SIMPLE_LINE
- REFLECTION, CPU_REFLECTION
- CROSS_COMPILE

It does not currently support the render tests or the COMPARE_COMPUTE commands

It is invoked by adding `(filecheck=MY_FILECHECK_PREFIX)` to the test command, for example

TEST:CROSS_COMPILE(filecheck=SPIRV): -target spirv-assembly

* Move LLVM FileCheck interface to slang-llvm

* Neaten slang-test tests

* Refine handling of expected output in slang-test

* Add example FileCheck buffer test

* Add cuda-kernel-export tests

Which were waiting on FileCheck

* Bump vs project files

* Make createLLVMFileCheck_V1 return a void* rather than specifically an IFileCheck

* Remove use of CharSlice from filecheck interface

* Bump slang-llvm version

---------

Co-authored-by: jsmall-nvidia <jsmall@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/tools/slang-test/test-context.h b/tools/slang-test/test-context.h
index fb391fb42..0abc6906f 100644
--- a/tools/slang-test/test-context.h
+++ b/tools/slang-test/test-context.h
@@ -17,6 +17,8 @@
 
 #include "../../slang-com-ptr.h"
 
+#include "filecheck.h"
+
 #include "options.h"
 
 #include <mutex>
@@ -170,9 +172,13 @@ class TestContext
     std::mutex mutex;
     Slang::RefPtr<Slang::JSONRPCConnection> m_languageServerConnection;
 
+    Slang::IFileCheck* getFileCheck() { return m_fileCheck; };
+
 protected:
     SlangResult _createJSONRPCConnection(Slang::RefPtr<Slang::JSONRPCConnection>& out);
 
+    SlangResult locateFileCheck();
+
     struct SharedLibraryTool
     {
         Slang::ComPtr<ISlangSharedLibrary> m_sharedLibrary;
@@ -186,6 +192,8 @@ protected:
     SlangSession* m_session;
 
     Slang::Dictionary<Slang::String, SharedLibraryTool> m_sharedLibTools;
+
+    Slang::ComPtr<Slang::IFileCheck> m_fileCheck;
 };
 
 #endif // TEST_CONTEXT_H_INCLUDED