get infra setup

Author: inbelic

llvm/include/llvm/Frontend/HLSL/HLSLRootSignature.h

@@ -15,6 +15,7 @@
 #define LLVM_FRONTEND_HLSL_HLSLROOTSIGNATURE_H
 
 #include "llvm/Support/DXILABI.h"
+#include "llvm/Support/raw_ostream.h"
 #include <variant>
 
 namespace llvm {
@@ -86,6 +87,8 @@ struct DescriptorTableClause {
       break;
     }
   }
+
+  void dump(raw_ostream &OS) const;
 };
 
 // Models RootElement : DescriptorTable | DescriptorTableClause

llvm/lib/Frontend/HLSL/CMakeLists.txt

@@ -1,6 +1,7 @@
 add_llvm_component_library(LLVMFrontendHLSL
   CBuffer.cpp
   HLSLResource.cpp
+  HLSLRootSignature.cpp
 
   ADDITIONAL_HEADER_DIRS
   ${LLVM_MAIN_INCLUDE_DIR}/llvm/Frontend

llvm/lib/Frontend/HLSL/HLSLRootSignature.cpp

@@ -0,0 +1,25 @@
+//===- HLSLRootSignature.cpp - HLSL Root Signature helper objects ---------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file This file contains helpers for working with HLSL Root Signatures.
+///
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Frontend/HLSL/HLSLRootSignature.h"
+
+namespace llvm {
+namespace hlsl {
+namespace rootsig {
+
+void DescriptorTableClause::dump(raw_ostream &OS) const {
+  OS << "Clause!";
+}
+
+} // namespace rootsig
+} // namespace hlsl
+} // namespace llvm

llvm/unittests/Frontend/CMakeLists.txt

@@ -1,6 +1,7 @@
 set(LLVM_LINK_COMPONENTS
   Analysis
   Core
+  FrontendHLSL
   FrontendOpenACC
   FrontendOpenMP
   Passes
@@ -10,6 +11,7 @@ set(LLVM_LINK_COMPONENTS
   )
 
 add_llvm_unittest(LLVMFrontendTests
+  HLSLRootSignatureDumpTest.cpp
   OpenACCTest.cpp
   OpenMPContextTest.cpp
   OpenMPIRBuilderTest.cpp

llvm/unittests/Frontend/HLSLRootSignatureDumpTest.cpp

@@ -0,0 +1,30 @@
+//===-------- HLSLRootSignatureDumpTest.cpp - RootSignature dump tests ----===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Frontend/HLSL/HLSLRootSignature.h"
+#include "gtest/gtest.h"
+
+using namespace llvm::hlsl::rootsig;
+
+namespace {
+
+TEST(HLSLRootSignatureTest, DescriptorTablesDump) {
+  // Default clause
+  DescriptorTableClause Clause;
+  Clause.Type = ClauseType::CBuffer;
+  Clause.Reg = { RegisterType::BReg, 0 };
+
+  std::string Out;
+  llvm::raw_string_ostream OS(Out);
+  Clause.dump(OS);
+  OS.flush();
+
+  EXPECT_EQ(Out, "Clause!");
+}
+
+} // namespace