llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Justin Bogner (bogner)

<details>
<summary>Changes</summary>

Rather than shepherding a type name all the way to the backend as a
string and attempting to parse it, get the element type out of the AST
and store that in the resource annotation metadata directly.


---

Patch is 26.27 KiB, truncated to 20.00 KiB below, full version: 
https://github.com/llvm/llvm-project/pull/75674.diff


11 Files Affected:

- (modified) clang/lib/CodeGen/CGHLSLRuntime.cpp (+54-9) 
- (modified) clang/lib/CodeGen/CGHLSLRuntime.h (+1-1) 
- (modified) clang/test/CodeGenHLSL/builtins/RWBuffer-annotations.hlsl (+7-7) 
- (added) clang/test/CodeGenHLSL/builtins/RWBuffer-elementtype.hlsl (+52) 
- (modified) 
clang/test/CodeGenHLSL/builtins/RasterizerOrderedBuffer-annotations.hlsl (+6-6) 
- (modified) clang/test/CodeGenHLSL/cbuf.hlsl (+2-2) 
- (modified) llvm/include/llvm/Frontend/HLSL/HLSLResource.h (+26-1) 
- (modified) llvm/lib/Frontend/HLSL/HLSLResource.cpp (+10-7) 
- (modified) llvm/lib/Target/DirectX/DXILResource.cpp (+28-64) 
- (modified) llvm/lib/Target/DirectX/DXILResource.h (+7-30) 
- (modified) llvm/test/CodeGen/DirectX/UAVMetadata.ll (+11-11) 


``````````diff
diff --git a/clang/lib/CodeGen/CGHLSLRuntime.cpp 
b/clang/lib/CodeGen/CGHLSLRuntime.cpp
index 3e8a40e7540bef..e887d35198b3c7 100644
--- a/clang/lib/CodeGen/CGHLSLRuntime.cpp
+++ b/clang/lib/CodeGen/CGHLSLRuntime.cpp
@@ -182,10 +182,8 @@ void CGHLSLRuntime::finishCodeGen() {
     llvm::hlsl::ResourceKind RK = Buf.IsCBuffer
                                       ? llvm::hlsl::ResourceKind::CBuffer
                                       : llvm::hlsl::ResourceKind::TBuffer;
-    std::string TyName =
-        Buf.Name.str() + (Buf.IsCBuffer ? ".cb." : ".tb.") + "ty";
-    addBufferResourceAnnotation(GV, TyName, RC, RK, /*IsROV=*/false,
-                                Buf.Binding);
+    addBufferResourceAnnotation(GV, RC, RK, /*IsROV=*/false,
+                                llvm::hlsl::ElementType::Invalid, Buf.Binding);
   }
 }
 
@@ -194,10 +192,10 @@ CGHLSLRuntime::Buffer::Buffer(const HLSLBufferDecl *D)
       Binding(D->getAttr<HLSLResourceBindingAttr>()) {}
 
 void CGHLSLRuntime::addBufferResourceAnnotation(llvm::GlobalVariable *GV,
-                                                llvm::StringRef TyName,
                                                 llvm::hlsl::ResourceClass RC,
                                                 llvm::hlsl::ResourceKind RK,
                                                 bool IsROV,
+                                                llvm::hlsl::ElementType ET,
                                                 BufferResBinding &Binding) {
   llvm::Module &M = CGM.getModule();
 
@@ -216,15 +214,62 @@ void 
CGHLSLRuntime::addBufferResourceAnnotation(llvm::GlobalVariable *GV,
     assert(false && "Unsupported buffer type!");
     return;
   }
-
   assert(ResourceMD != nullptr &&
          "ResourceMD must have been set by the switch above.");
 
   llvm::hlsl::FrontendResource Res(
-      GV, TyName, RK, IsROV, Binding.Reg.value_or(UINT_MAX), Binding.Space);
+      GV, RK, ET, IsROV, Binding.Reg.value_or(UINT_MAX), Binding.Space);
   ResourceMD->addOperand(Res.getMetadata());
 }
 
+static llvm::hlsl::ElementType
+calculateElementType(const ASTContext &Context, const clang::Type *ResourceTy) 
{
+  using llvm::hlsl::ElementType;
+
+  // TODO: We may need to update this when we add things like ByteAddressBuffer
+  // that don't have a template parameter (or, indeed, an element type).
+  const auto *TST = ResourceTy->getAs<TemplateSpecializationType>();
+  assert(TST && "Resource types must be template specializations");
+  ArrayRef<TemplateArgument> Args = TST->template_arguments();
+  assert(!Args.empty() && "Resource has no element type");
+
+  // At this point we have a resource with an element type, so we can assume
+  // that it's valid or we would have diagnosed the error earlier.
+  QualType ElTy = Args[0].getAsType();
+
+  // We should either have a basic type or a vector of a basic type.
+  if (const auto *VecTy = ElTy->getAs<clang::VectorType>())
+    ElTy = VecTy->getElementType();
+
+  if (ElTy->isSignedIntegerType()) {
+    switch (Context.getTypeSize(ElTy)) {
+    case 16:
+      return ElementType::I16;
+    case 32:
+      return ElementType::I32;
+    case 64:
+      return ElementType::I64;
+    }
+  } else if (ElTy->isUnsignedIntegerType()) {
+    switch (Context.getTypeSize(ElTy)) {
+    case 16:
+      return ElementType::U16;
+    case 32:
+      return ElementType::U32;
+    case 64:
+      return ElementType::U64;
+    }
+  } else if (ElTy->isSpecificBuiltinType(BuiltinType::Half))
+    return ElementType::F16;
+  else if (ElTy->isSpecificBuiltinType(BuiltinType::Float))
+    return ElementType::F32;
+  else if (ElTy->isSpecificBuiltinType(BuiltinType::Double))
+    return ElementType::F64;
+
+  // TODO: We need to handle unorm/snorm float types here once we support them
+  llvm_unreachable("Invalid element type for resource");
+}
+
 void CGHLSLRuntime::annotateHLSLResource(const VarDecl *D, GlobalVariable *GV) 
{
   const Type *Ty = D->getType()->getPointeeOrArrayElementType();
   if (!Ty)
@@ -239,10 +284,10 @@ void CGHLSLRuntime::annotateHLSLResource(const VarDecl 
*D, GlobalVariable *GV) {
   llvm::hlsl::ResourceClass RC = Attr->getResourceClass();
   llvm::hlsl::ResourceKind RK = Attr->getResourceKind();
   bool IsROV = Attr->getIsROV();
+  llvm::hlsl::ElementType ET = calculateElementType(CGM.getContext(), Ty);
 
-  QualType QT(Ty, 0);
   BufferResBinding Binding(D->getAttr<HLSLResourceBindingAttr>());
-  addBufferResourceAnnotation(GV, QT.getAsString(), RC, RK, IsROV, Binding);
+  addBufferResourceAnnotation(GV, RC, RK, IsROV, ET, Binding);
 }
 
 CGHLSLRuntime::BufferResBinding::BufferResBinding(
diff --git a/clang/lib/CodeGen/CGHLSLRuntime.h 
b/clang/lib/CodeGen/CGHLSLRuntime.h
index bb500cb5c979f2..bffefb66740a00 100644
--- a/clang/lib/CodeGen/CGHLSLRuntime.h
+++ b/clang/lib/CodeGen/CGHLSLRuntime.h
@@ -90,9 +90,9 @@ class CGHLSLRuntime {
 
 private:
   void addBufferResourceAnnotation(llvm::GlobalVariable *GV,
-                                   llvm::StringRef TyName,
                                    llvm::hlsl::ResourceClass RC,
                                    llvm::hlsl::ResourceKind RK, bool IsROV,
+                                   llvm::hlsl::ElementType ET,
                                    BufferResBinding &Binding);
   void addConstant(VarDecl *D, Buffer &CB);
   void addBufferDecls(const DeclContext *DC, Buffer &CB);
diff --git a/clang/test/CodeGenHLSL/builtins/RWBuffer-annotations.hlsl 
b/clang/test/CodeGenHLSL/builtins/RWBuffer-annotations.hlsl
index a70e224b81e4b7..7ca78e60fb9c59 100644
--- a/clang/test/CodeGenHLSL/builtins/RWBuffer-annotations.hlsl
+++ b/clang/test/CodeGenHLSL/builtins/RWBuffer-annotations.hlsl
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -x hlsl -emit-llvm 
-disable-llvm-passes -o - %s | FileCheck %s 
+// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -x hlsl -emit-llvm 
-disable-llvm-passes -o - %s | FileCheck %s
 
 RWBuffer<float> Buffer1;
 RWBuffer<vector<float, 4> > BufferArray[4];
@@ -16,9 +16,9 @@ void main() {
 }
 
 // CHECK: !hlsl.uavs = !{![[Single:[0-9]+]], ![[Array:[0-9]+]], 
![[SingleAllocated:[0-9]+]], ![[ArrayAllocated:[0-9]+]], 
![[SingleSpace:[0-9]+]], ![[ArraySpace:[0-9]+]]}
-// CHECK-DAG: ![[Single]] = !{ptr @"?Buffer1@@3V?$RWBuffer@M@hlsl@@A", 
!"RWBuffer<float>", i32 10, i1 false, i32 -1, i32 0}
-// CHECK-DAG: ![[Array]] = !{ptr 
@"?BufferArray@@3PAV?$RWBuffer@T?$__vector@M$03@__clang@@@hlsl@@A", 
!"RWBuffer<vector<float, 4> >", i32 10, i1 false, i32 -1, i32 0}
-// CHECK-DAG: ![[SingleAllocated]] = !{ptr 
@"?Buffer2@@3V?$RWBuffer@M@hlsl@@A", !"RWBuffer<float>", i32 10, i1 false, i32 
3, i32 0}
-// CHECK-DAG: ![[ArrayAllocated]] = !{ptr 
@"?BufferArray2@@3PAV?$RWBuffer@T?$__vector@M$03@__clang@@@hlsl@@A", 
!"RWBuffer<vector<float, 4> >", i32 10, i1 false, i32 4, i32 0}
-// CHECK-DAG: ![[SingleSpace]] = !{ptr @"?Buffer3@@3V?$RWBuffer@M@hlsl@@A", 
!"RWBuffer<float>", i32 10, i1 false, i32 3, i32 1}
-// CHECK-DAG: ![[ArraySpace]] = !{ptr 
@"?BufferArray3@@3PAV?$RWBuffer@T?$__vector@M$03@__clang@@@hlsl@@A", 
!"RWBuffer<vector<float, 4> >", i32 10, i1 false, i32 4, i32 1}
+// CHECK-DAG: ![[Single]] = !{ptr @"?Buffer1@@3V?$RWBuffer@M@hlsl@@A", i32 10, 
i32 9, i1 false, i32 -1, i32 0}
+// CHECK-DAG: ![[Array]] = !{ptr 
@"?BufferArray@@3PAV?$RWBuffer@T?$__vector@M$03@__clang@@@hlsl@@A", i32 10, i32 
9, i1 false, i32 -1, i32 0}
+// CHECK-DAG: ![[SingleAllocated]] = !{ptr 
@"?Buffer2@@3V?$RWBuffer@M@hlsl@@A", i32 10, i32 9, i1 false, i32 3, i32 0}
+// CHECK-DAG: ![[ArrayAllocated]] = !{ptr 
@"?BufferArray2@@3PAV?$RWBuffer@T?$__vector@M$03@__clang@@@hlsl@@A", i32 10, 
i32 9, i1 false, i32 4, i32 0}
+// CHECK-DAG: ![[SingleSpace]] = !{ptr @"?Buffer3@@3V?$RWBuffer@M@hlsl@@A", 
i32 10, i32 9, i1 false, i32 3, i32 1}
+// CHECK-DAG: ![[ArraySpace]] = !{ptr 
@"?BufferArray3@@3PAV?$RWBuffer@T?$__vector@M$03@__clang@@@hlsl@@A", i32 10, 
i32 9, i1 false, i32 4, i32 1}
diff --git a/clang/test/CodeGenHLSL/builtins/RWBuffer-elementtype.hlsl 
b/clang/test/CodeGenHLSL/builtins/RWBuffer-elementtype.hlsl
new file mode 100644
index 00000000000000..87002ccd462d3f
--- /dev/null
+++ b/clang/test/CodeGenHLSL/builtins/RWBuffer-elementtype.hlsl
@@ -0,0 +1,52 @@
+// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute 
-finclude-default-header -fnative-half-type -emit-llvm -o - %s | FileCheck %s
+
+RWBuffer<int16_t> BufI16;
+RWBuffer<uint16_t> BufU16;
+RWBuffer<int> BufI32;
+RWBuffer<uint> BufU32;
+RWBuffer<int64_t> BufI64;
+RWBuffer<uint64_t> BufU64;
+RWBuffer<half> BufF16;
+RWBuffer<float> BufF32;
+RWBuffer<double> BufF64;
+RWBuffer< vector<int16_t, 4> > BufI16x4;
+RWBuffer< vector<uint, 3> > BufU32x3;
+RWBuffer<half2> BufF16x2;
+RWBuffer<float3> BufF32x3;
+// TODO: RWBuffer<snorm half> BufSNormF16; -> 11
+// TODO: RWBuffer<unorm half> BufUNormF16; -> 12
+// TODO: RWBuffer<snorm float> BufSNormF32; -> 13
+// TODO: RWBuffer<unorm float> BufUNormF32; -> 14
+// TODO: RWBuffer<snorm double> BufSNormF64; -> 15
+// TODO: RWBuffer<unorm double> BufUNormF64; -> 16
+
+[numthreads(1,1,1)]
+void main(int GI : SV_GroupIndex) {
+  BufI16[GI] = 0;
+  BufU16[GI] = 0;
+  BufI32[GI] = 0;
+  BufU32[GI] = 0;
+  BufI64[GI] = 0;
+  BufU64[GI] = 0;
+  BufF16[GI] = 0;
+  BufF32[GI] = 0;
+  BufF64[GI] = 0;
+  BufI16x4[GI] = 0;
+  BufU32x3[GI] = 0;
+  BufF16x2[GI] = 0;
+  BufF32x3[GI] = 0;
+}
+
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufI16@@3V?$RWBuffer@F@hlsl@@A", i32 10, i32 
2,
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufU16@@3V?$RWBuffer@G@hlsl@@A", i32 10, i32 
3,
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufI32@@3V?$RWBuffer@H@hlsl@@A", i32 10, i32 
4,
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufU32@@3V?$RWBuffer@I@hlsl@@A", i32 10, i32 
5,
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufI64@@3V?$RWBuffer@J@hlsl@@A", i32 10, i32 
6,
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufU64@@3V?$RWBuffer@K@hlsl@@A", i32 10, i32 
7,
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufF16@@3V?$RWBuffer@$f16@@hlsl@@A", i32 10, 
i32 8,
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufF32@@3V?$RWBuffer@M@hlsl@@A", i32 10, i32 
9,
+// CHECK: !{{[0-9]+}} = !{ptr @"?BufF64@@3V?$RWBuffer@N@hlsl@@A", i32 10, i32 
10,
+// CHECK: !{{[0-9]+}} = !{ptr 
@"?BufI16x4@@3V?$RWBuffer@T?$__vector@F$03@__clang@@@hlsl@@A", i32 10, i32 2,
+// CHECK: !{{[0-9]+}} = !{ptr 
@"?BufU32x3@@3V?$RWBuffer@T?$__vector@I$02@__clang@@@hlsl@@A", i32 10, i32 5,
+// CHECK: !{{[0-9]+}} = !{ptr 
@"?BufF16x2@@3V?$RWBuffer@T?$__vector@$f16@$01@__clang@@@hlsl@@A", i32 10, i32 
8,
+// CHECK: !{{[0-9]+}} = !{ptr 
@"?BufF32x3@@3V?$RWBuffer@T?$__vector@M$02@__clang@@@hlsl@@A", i32 10, i32 9,
diff --git 
a/clang/test/CodeGenHLSL/builtins/RasterizerOrderedBuffer-annotations.hlsl 
b/clang/test/CodeGenHLSL/builtins/RasterizerOrderedBuffer-annotations.hlsl
index ce7d84ecf5b147..bf70cc2456c8bc 100644
--- a/clang/test/CodeGenHLSL/builtins/RasterizerOrderedBuffer-annotations.hlsl
+++ b/clang/test/CodeGenHLSL/builtins/RasterizerOrderedBuffer-annotations.hlsl
@@ -12,9 +12,9 @@ RasterizerOrderedBuffer<vector<float, 4> > BufferArray3[4] : 
register(u4, space1
 void main() {}
 
 // CHECK: !hlsl.uavs = !{![[Single:[0-9]+]], ![[Array:[0-9]+]], 
![[SingleAllocated:[0-9]+]], ![[ArrayAllocated:[0-9]+]], 
![[SingleSpace:[0-9]+]], ![[ArraySpace:[0-9]+]]}
-// CHECK-DAG: ![[Single]] = !{ptr 
@"?Buffer1@@3V?$RasterizerOrderedBuffer@M@hlsl@@A", 
!"RasterizerOrderedBuffer<float>", i32 10, i1 true, i32 -1, i32 0}
-// CHECK-DAG: ![[Array]] = !{ptr 
@"?BufferArray@@3PAV?$RasterizerOrderedBuffer@T?$__vector@M$03@__clang@@@hlsl@@A",
 !"RasterizerOrderedBuffer<vector<float, 4> >", i32 10, i1 true, i32 -1, i32 0}
-// CHECK-DAG: ![[SingleAllocated]] = !{ptr 
@"?Buffer2@@3V?$RasterizerOrderedBuffer@M@hlsl@@A", 
!"RasterizerOrderedBuffer<float>", i32 10, i1 true, i32 3, i32 0}
-// CHECK-DAG: ![[ArrayAllocated]] = !{ptr 
@"?BufferArray2@@3PAV?$RasterizerOrderedBuffer@T?$__vector@M$03@__clang@@@hlsl@@A",
 !"RasterizerOrderedBuffer<vector<float, 4> >", i32 10, i1 true, i32 4, i32 0}
-// CHECK-DAG: ![[SingleSpace]] = !{ptr 
@"?Buffer3@@3V?$RasterizerOrderedBuffer@M@hlsl@@A", 
!"RasterizerOrderedBuffer<float>", i32 10, i1 true, i32 3, i32 1}
-// CHECK-DAG: ![[ArraySpace]] = !{ptr 
@"?BufferArray3@@3PAV?$RasterizerOrderedBuffer@T?$__vector@M$03@__clang@@@hlsl@@A",
 !"RasterizerOrderedBuffer<vector<float, 4> >", i32 10, i1 true, i32 4, i32 1}
+// CHECK-DAG: ![[Single]] = !{ptr 
@"?Buffer1@@3V?$RasterizerOrderedBuffer@M@hlsl@@A", i32 10, i32 9, i1 true, i32 
-1, i32 0}
+// CHECK-DAG: ![[Array]] = !{ptr 
@"?BufferArray@@3PAV?$RasterizerOrderedBuffer@T?$__vector@M$03@__clang@@@hlsl@@A",
 i32 10, i32 9, i1 true, i32 -1, i32 0}
+// CHECK-DAG: ![[SingleAllocated]] = !{ptr 
@"?Buffer2@@3V?$RasterizerOrderedBuffer@M@hlsl@@A", i32 10, i32 9, i1 true, i32 
3, i32 0}
+// CHECK-DAG: ![[ArrayAllocated]] = !{ptr 
@"?BufferArray2@@3PAV?$RasterizerOrderedBuffer@T?$__vector@M$03@__clang@@@hlsl@@A",
 i32 10, i32 9, i1 true, i32 4, i32 0}
+// CHECK-DAG: ![[SingleSpace]] = !{ptr 
@"?Buffer3@@3V?$RasterizerOrderedBuffer@M@hlsl@@A", i32 10, i32 9, i1 true, i32 
3, i32 1}
+// CHECK-DAG: ![[ArraySpace]] = !{ptr 
@"?BufferArray3@@3PAV?$RasterizerOrderedBuffer@T?$__vector@M$03@__clang@@@hlsl@@A",
 i32 10, i32 9, i1 true, i32 4, i32 1}
diff --git a/clang/test/CodeGenHLSL/cbuf.hlsl b/clang/test/CodeGenHLSL/cbuf.hlsl
index 5dee1feb902aa0..dc2a6aaa8f4335 100644
--- a/clang/test/CodeGenHLSL/cbuf.hlsl
+++ b/clang/test/CodeGenHLSL/cbuf.hlsl
@@ -24,5 +24,5 @@ float foo() {
 
 // CHECK: !hlsl.cbufs = !{![[CBMD:[0-9]+]]}
 // CHECK: !hlsl.srvs = !{![[TBMD:[0-9]+]]}
-// CHECK: ![[CBMD]] = !{ptr @[[CB]], !"A.cb.ty", i32 13, i1 false, i32 0, i32 
2}
-// CHECK: ![[TBMD]] = !{ptr @[[TB]], !"A.tb.ty", i32 15, i1 false, i32 2, i32 
1}
+// CHECK: ![[CBMD]] = !{ptr @[[CB]], i32 13, i32 0, i1 false, i32 0, i32 2}
+// CHECK: ![[TBMD]] = !{ptr @[[TB]], i32 15, i32 0, i1 false, i32 2, i32 1}
diff --git a/llvm/include/llvm/Frontend/HLSL/HLSLResource.h 
b/llvm/include/llvm/Frontend/HLSL/HLSLResource.h
index eedecaea4e58da..068b4c66711e46 100644
--- a/llvm/include/llvm/Frontend/HLSL/HLSLResource.h
+++ b/llvm/include/llvm/Frontend/HLSL/HLSLResource.h
@@ -54,6 +54,30 @@ enum class ResourceKind : uint32_t {
   NumEntries,
 };
 
+// The value ordering of this enumeration is part of the DXIL ABI. Elements
+// can only be added to the end, and not removed.
+enum class ElementType : uint32_t {
+  Invalid = 0,
+  I1,
+  I16,
+  U16,
+  I32,
+  U32,
+  I64,
+  U64,
+  F16,
+  F32,
+  F64,
+  SNormF16,
+  UNormF16,
+  SNormF32,
+  UNormF32,
+  SNormF64,
+  UNormF64,
+  PackedS8x32,
+  PackedU8x32,
+};
+
 class FrontendResource {
   MDNode *Entry;
 
@@ -62,12 +86,13 @@ class FrontendResource {
     assert(Entry->getNumOperands() == 6 && "Unexpected metadata shape");
   }
 
-  FrontendResource(GlobalVariable *GV, StringRef TypeStr, ResourceKind RK,
+  FrontendResource(GlobalVariable *GV, ResourceKind RK, ElementType ElTy,
                    bool IsROV, uint32_t ResIndex, uint32_t Space);
 
   GlobalVariable *getGlobalVariable();
   StringRef getSourceType();
   ResourceKind getResourceKind();
+  ElementType getElementType();
   bool getIsROV();
   uint32_t getResourceIndex();
   uint32_t getSpace();
diff --git a/llvm/lib/Frontend/HLSL/HLSLResource.cpp 
b/llvm/lib/Frontend/HLSL/HLSLResource.cpp
index 709fe3212623ef..bcdbe5eadc69e5 100644
--- a/llvm/lib/Frontend/HLSL/HLSLResource.cpp
+++ b/llvm/lib/Frontend/HLSL/HLSLResource.cpp
@@ -23,12 +23,14 @@ GlobalVariable *FrontendResource::getGlobalVariable() {
       cast<ConstantAsMetadata>(Entry->getOperand(0))->getValue());
 }
 
-StringRef FrontendResource::getSourceType() {
-  return cast<MDString>(Entry->getOperand(1))->getString();
-}
-
 ResourceKind FrontendResource::getResourceKind() {
   return static_cast<ResourceKind>(
+      cast<ConstantInt>(
+          cast<ConstantAsMetadata>(Entry->getOperand(1))->getValue())
+          ->getLimitedValue());
+}
+ElementType FrontendResource::getElementType() {
+  return static_cast<ElementType>(
       cast<ConstantInt>(
           cast<ConstantAsMetadata>(Entry->getOperand(2))->getValue())
           ->getLimitedValue());
@@ -49,14 +51,15 @@ uint32_t FrontendResource::getSpace() {
       ->getLimitedValue();
 }
 
-FrontendResource::FrontendResource(GlobalVariable *GV, StringRef TypeStr,
-                                   ResourceKind RK, bool IsROV,
+FrontendResource::FrontendResource(GlobalVariable *GV, ResourceKind RK,
+                                   ElementType ElTy, bool IsROV,
                                    uint32_t ResIndex, uint32_t Space) {
   auto &Ctx = GV->getContext();
   IRBuilder<> B(Ctx);
   Entry = MDNode::get(
-      Ctx, {ValueAsMetadata::get(GV), MDString::get(Ctx, TypeStr),
+      Ctx, {ValueAsMetadata::get(GV),
             ConstantAsMetadata::get(B.getInt32(static_cast<int>(RK))),
+            ConstantAsMetadata::get(B.getInt32(static_cast<int>(ElTy))),
             ConstantAsMetadata::get(B.getInt1(IsROV)),
             ConstantAsMetadata::get(B.getInt32(ResIndex)),
             ConstantAsMetadata::get(B.getInt32(Space))});
diff --git a/llvm/lib/Target/DirectX/DXILResource.cpp 
b/llvm/lib/Target/DirectX/DXILResource.cpp
index 92306d907e0546..b22f6d3ca4cd55 100644
--- a/llvm/lib/Target/DirectX/DXILResource.cpp
+++ b/llvm/lib/Target/DirectX/DXILResource.cpp
@@ -63,57 +63,56 @@ ResourceBase::ResourceBase(uint32_t I, FrontendResource R)
     RangeSize = ArrTy->getNumElements();
 }
 
-StringRef ResourceBase::getComponentTypeName(ComponentType CompType) {
-  switch (CompType) {
-  case ComponentType::LastEntry:
-  case ComponentType::Invalid:
+StringRef ResourceBase::getElementTypeName(ElementType ElTy) {
+  switch (ElTy) {
+  case ElementType::Invalid:
     return "invalid";
-  case ComponentType::I1:
+  case ElementType::I1:
     return "i1";
-  case ComponentType::I16:
+  case ElementType::I16:
     return "i16";
-  case ComponentType::U16:
+  case ElementType::U16:
     return "u16";
-  case ComponentType::I32:
+  case ElementType::I32:
     return "i32";
-  case ComponentType::U32:
+  case ElementType::U32:
     return "u32";
-  case ComponentType::I64:
+  case ElementType::I64:
     return "i64";
-  case ComponentType::U64:
+  case ElementType::U64:
     return "u64";
-  case ComponentType::F16:
+  case ElementType::F16:
     return "f16";
-  case ComponentType::F32:
+  case ElementType::F32:
     return "f32";
-  case ComponentType::F64:
+  case ElementType::F64:
     return "f64";
-  case ComponentType::SNormF16:
+  case ElementType::SNormF16:
     return "snorm_f16";
-  case ComponentType::UNormF16:
+  case ElementType::UNormF16:
     return "unorm_f16";
-  case ComponentType::SNormF32:
+  case ElementType::SNormF32:
     return "snorm_f32";
-  case ComponentType::UNormF32:
+  case ElementType::UNormF32:
     return "unorm_f32";
-  case ComponentType::SNormF64:
+  case ElementType::SNormF64:
     return "snorm_f64";
-  case ComponentType::UNormF64:
+  case ElementType::UNormF64:
     return "unorm_f64";
-  case ComponentType::PackedS8x32:
+  case ElementType::PackedS8x32:
     return "p32i8";
-  case ComponentType::PackedU8x32:
+  case ElementType::PackedU8x32:
     return "p32u8";
   }
-  llvm_unreachable("All ComponentType enums are handled in switch");
+  llvm_unreachable("All ElementType enums are handled in switch");
 }
 
-void ResourceBase::printComponentType(Kinds Kind, ComponentType CompType,
-                                      unsigned Alignment, raw_ostream &OS) {
+void ResourceBase::printElementType(Kinds Kind, ElementType ElTy,
+                                    unsigned Alignment, raw_ostream &OS) {
   switch (Kind) {
   default:
     // TODO: add vector size.
-    OS << right_justify(getComponentTypeName(CompType), Alignment);
+    OS << right_justify(getElementTypeName(ElTy), Alignment);
     break;
   case Kinds::RawBuffer:
     OS << right_justify("byte", Alignment);
@@ -232,19 +231,13 @@ void ResourceBase::print(raw_ostream &OS, StringRef 
IDPrefix,
     OS << right_justify("unbounded", 6) << "\n";
 }
 
-UAVResource::UAVResource(uint32_t I, FrontendResource R)
-    : ResourceBase(I, R), Shape(R.getResourceKind()), GloballyCoherent(false),
-      HasCounter(false), IsROV(R.getIsROV()), ExtProps() {
-  parseSourceType(R.getSourceType());
-}
-
 void UAVResource::print(raw_ostream &OS) const {
   OS << "; " << left_justify(Name, 31);
 
   OS << right_justify("UAV", 10);
 
-  printComponentType(
-      Shape, ExtProps.ElementType.value_or(ComponentType::Invalid), 8, OS);
+  printElementType(
+      Shape, ExtProps.ElementType.value_or(ElementType:...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/75674
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