llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-hlsl

Author: Finn Plummer (inbelic)

<details>
<summary>Changes</summary>

This relands #<!-- -->141130.

The initial commit uncovered that we are missing the correct linking of 
FrontendHLSL into clang/lib/Parse and clang/lib/unittests/Parse.

This change addreses this by linking them accordingly.

It was also checked and ensured that the LexHLSLRootSignature libraries do not 
depend on FrontendHLSL and so we are not required to link there.

Resolves: #<!-- -->138190 and #<!-- -->138192

---
Full diff: https://github.com/llvm/llvm-project/pull/143019.diff


5 Files Affected:

- (modified) clang/lib/Parse/CMakeLists.txt (+1) 
- (modified) clang/unittests/Parse/CMakeLists.txt (+1) 
- (modified) llvm/include/llvm/Frontend/HLSL/HLSLRootSignature.h (+4) 
- (modified) llvm/lib/Frontend/HLSL/HLSLRootSignatureUtils.cpp (+73) 
- (modified) llvm/unittests/Frontend/HLSLRootSignatureDumpTest.cpp (+69) 


``````````diff
diff --git a/clang/lib/Parse/CMakeLists.txt b/clang/lib/Parse/CMakeLists.txt
index 00fde537bb9c6..e6cbf3b868b7d 100644
--- a/clang/lib/Parse/CMakeLists.txt
+++ b/clang/lib/Parse/CMakeLists.txt
@@ -1,4 +1,5 @@
 set(LLVM_LINK_COMPONENTS
+  FrontendHLSL
   FrontendOpenMP
   MC
   MCParser
diff --git a/clang/unittests/Parse/CMakeLists.txt 
b/clang/unittests/Parse/CMakeLists.txt
index 6859efed294c8..2ed43a83b8782 100644
--- a/clang/unittests/Parse/CMakeLists.txt
+++ b/clang/unittests/Parse/CMakeLists.txt
@@ -11,5 +11,6 @@ add_clang_unittest(ParseTests
   LLVMTestingSupport
   clangTesting
   LLVM_COMPONENTS
+  FrontendHLSL
   Support
   )
diff --git a/llvm/include/llvm/Frontend/HLSL/HLSLRootSignature.h 
b/llvm/include/llvm/Frontend/HLSL/HLSLRootSignature.h
index 2f028817b45b6..c70ef508ea73e 100644
--- a/llvm/include/llvm/Frontend/HLSL/HLSLRootSignature.h
+++ b/llvm/include/llvm/Frontend/HLSL/HLSLRootSignature.h
@@ -44,6 +44,8 @@ enum class RootFlags : uint32_t {
   ValidFlags = 0x00000fff
 };
 
+raw_ostream &operator<<(raw_ostream &OS, const RootFlags &Flags);
+
 enum class RootDescriptorFlags : unsigned {
   None = 0,
   DataVolatile = 0x2,
@@ -159,6 +161,8 @@ struct RootConstants {
   ShaderVisibility Visibility = ShaderVisibility::All;
 };
 
+raw_ostream &operator<<(raw_ostream &OS, const RootConstants &Constants);
+
 enum class DescriptorType : uint8_t { SRV = 0, UAV, CBuffer };
 // Models RootDescriptor : CBV | SRV | UAV, by collecting like parameters
 struct RootDescriptor {
diff --git a/llvm/lib/Frontend/HLSL/HLSLRootSignatureUtils.cpp 
b/llvm/lib/Frontend/HLSL/HLSLRootSignatureUtils.cpp
index 765a3bcbed7e2..24486a55ecf6a 100644
--- a/llvm/lib/Frontend/HLSL/HLSLRootSignatureUtils.cpp
+++ b/llvm/lib/Frontend/HLSL/HLSLRootSignatureUtils.cpp
@@ -132,6 +132,79 @@ static raw_ostream &operator<<(raw_ostream &OS,
   return OS;
 }
 
+raw_ostream &operator<<(raw_ostream &OS, const RootFlags &Flags) {
+  OS << "RootFlags(";
+  bool FlagSet = false;
+  unsigned Remaining = llvm::to_underlying(Flags);
+  while (Remaining) {
+    unsigned Bit = 1u << llvm::countr_zero(Remaining);
+    if (Remaining & Bit) {
+      if (FlagSet)
+        OS << " | ";
+
+      switch (static_cast<RootFlags>(Bit)) {
+      case RootFlags::AllowInputAssemblerInputLayout:
+        OS << "AllowInputAssemblerInputLayout";
+        break;
+      case RootFlags::DenyVertexShaderRootAccess:
+        OS << "DenyVertexShaderRootAccess";
+        break;
+      case RootFlags::DenyHullShaderRootAccess:
+        OS << "DenyHullShaderRootAccess";
+        break;
+      case RootFlags::DenyDomainShaderRootAccess:
+        OS << "DenyDomainShaderRootAccess";
+        break;
+      case RootFlags::DenyGeometryShaderRootAccess:
+        OS << "DenyGeometryShaderRootAccess";
+        break;
+      case RootFlags::DenyPixelShaderRootAccess:
+        OS << "DenyPixelShaderRootAccess";
+        break;
+      case RootFlags::AllowStreamOutput:
+        OS << "AllowStreamOutput";
+        break;
+      case RootFlags::LocalRootSignature:
+        OS << "LocalRootSignature";
+        break;
+      case RootFlags::DenyAmplificationShaderRootAccess:
+        OS << "DenyAmplificationShaderRootAccess";
+        break;
+      case RootFlags::DenyMeshShaderRootAccess:
+        OS << "DenyMeshShaderRootAccess";
+        break;
+      case RootFlags::CBVSRVUAVHeapDirectlyIndexed:
+        OS << "CBVSRVUAVHeapDirectlyIndexed";
+        break;
+      case RootFlags::SamplerHeapDirectlyIndexed:
+        OS << "SamplerHeapDirectlyIndexed";
+        break;
+      default:
+        OS << "invalid: " << Bit;
+        break;
+      }
+
+      FlagSet = true;
+    }
+    Remaining &= ~Bit;
+  }
+
+  if (!FlagSet)
+    OS << "None";
+
+  OS << ")";
+
+  return OS;
+}
+
+raw_ostream &operator<<(raw_ostream &OS, const RootConstants &Constants) {
+  OS << "RootConstants(num32BitConstants = " << Constants.Num32BitConstants
+     << ", " << Constants.Reg << ", space = " << Constants.Space
+     << ", visibility = " << Constants.Visibility << ")";
+
+  return OS;
+}
+
 raw_ostream &operator<<(raw_ostream &OS, const DescriptorTable &Table) {
   OS << "DescriptorTable(numClauses = " << Table.NumClauses
      << ", visibility = " << Table.Visibility << ")";
diff --git a/llvm/unittests/Frontend/HLSLRootSignatureDumpTest.cpp 
b/llvm/unittests/Frontend/HLSLRootSignatureDumpTest.cpp
index 90e6cd0a80d6b..1a0c8e2a16396 100644
--- a/llvm/unittests/Frontend/HLSLRootSignatureDumpTest.cpp
+++ b/llvm/unittests/Frontend/HLSLRootSignatureDumpTest.cpp
@@ -108,4 +108,73 @@ TEST(HLSLRootSignatureTest, DescriptorTableDump) {
   EXPECT_EQ(Out, Expected);
 }
 
+TEST(HLSLRootSignatureTest, DefaultRootConstantsDump) {
+  RootConstants Constants;
+  Constants.Num32BitConstants = 1;
+  Constants.Reg = {RegisterType::BReg, 3};
+
+  std::string Out;
+  llvm::raw_string_ostream OS(Out);
+  OS << Constants;
+  OS.flush();
+
+  std::string Expected = "RootConstants(num32BitConstants = 1, b3, space = 0, "
+                         "visibility = All)";
+  EXPECT_EQ(Out, Expected);
+}
+
+TEST(HLSLRootSignatureTest, SetRootConstantsDump) {
+  RootConstants Constants;
+  Constants.Num32BitConstants = 983;
+  Constants.Reg = {RegisterType::BReg, 34593};
+  Constants.Space = 7;
+  Constants.Visibility = ShaderVisibility::Pixel;
+
+  std::string Out;
+  llvm::raw_string_ostream OS(Out);
+  OS << Constants;
+  OS.flush();
+
+  std::string Expected = "RootConstants(num32BitConstants = 983, b34593, "
+                         "space = 7, visibility = Pixel)";
+  EXPECT_EQ(Out, Expected);
+}
+
+TEST(HLSLRootSignatureTest, NoneRootFlagsDump) {
+  RootFlags Flags = RootFlags::None;
+
+  std::string Out;
+  llvm::raw_string_ostream OS(Out);
+  OS << Flags;
+  OS.flush();
+
+  std::string Expected = "RootFlags(None)";
+  EXPECT_EQ(Out, Expected);
+}
+
+TEST(HLSLRootSignatureTest, AllRootFlagsDump) {
+  RootFlags Flags = RootFlags::ValidFlags;
+
+  std::string Out;
+  llvm::raw_string_ostream OS(Out);
+  OS << Flags;
+  OS.flush();
+
+  std::string Expected = "RootFlags("
+                         "AllowInputAssemblerInputLayout | "
+                         "DenyVertexShaderRootAccess | "
+                         "DenyHullShaderRootAccess | "
+                         "DenyDomainShaderRootAccess | "
+                         "DenyGeometryShaderRootAccess | "
+                         "DenyPixelShaderRootAccess | "
+                         "AllowStreamOutput | "
+                         "LocalRootSignature | "
+                         "DenyAmplificationShaderRootAccess | "
+                         "DenyMeshShaderRootAccess | "
+                         "CBVSRVUAVHeapDirectlyIndexed | "
+                         "SamplerHeapDirectlyIndexed)";
+
+  EXPECT_EQ(Out, Expected);
+}
+
 } // namespace

``````````

</details>


https://github.com/llvm/llvm-project/pull/143019
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