================
@@ -459,7 +467,506 @@ void SemaHLSL::handleResourceClassAttr(Decl *D, const
ParsedAttr &AL) {
D->addAttr(HLSLResourceClassAttr::Create(getASTContext(), RC, ArgLoc));
}
-void SemaHLSL::handleResourceBindingAttr(Decl *D, const ParsedAttr &AL) {
+struct RegisterBindingFlags {
+ bool Resource = false;
+ bool UDT = false;
+ bool Other = false;
+ bool Basic = false;
+
+ bool SRV = false;
+ bool UAV = false;
+ bool CBV = false;
+ bool Sampler = false;
+
+ bool ContainsNumeric = false;
+ bool DefaultGlobals = false;
+};
+
+bool isDeclaredWithinCOrTBuffer(const Decl *TheDecl) {
+ if (!TheDecl)
+ return false;
+
+ // Traverse up the parent contexts
+ const DeclContext *context = TheDecl->getDeclContext();
+ if (isa<HLSLBufferDecl>(context)) {
+ return true;
+ }
+
+ return false;
+}
+
+const CXXRecordDecl *getRecordDeclFromVarDecl(VarDecl *VD) {
+ const Type *Ty = VD->getType()->getPointeeOrArrayElementType();
+ assert(Ty && "Resource class must have an element type.");
+
+ if (const auto *TheBuiltinTy = dyn_cast<BuiltinType>(Ty))
+ return nullptr;
+
+ const CXXRecordDecl *TheRecordDecl = Ty->getAsCXXRecordDecl();
+ assert(TheRecordDecl &&
+ "Resource class should have a resource type declaration.");
+
+ if (auto TDecl = dyn_cast<ClassTemplateSpecializationDecl>(TheRecordDecl))
+ TheRecordDecl = TDecl->getSpecializedTemplate()->getTemplatedDecl();
+ TheRecordDecl = TheRecordDecl->getCanonicalDecl();
+ return TheRecordDecl;
+}
+
+const HLSLResourceClassAttr *
+getHLSLResourceClassAttrFromEitherDecl(VarDecl *VD,
+ HLSLBufferDecl *CBufferOrTBuffer) {
+
+ if (VD) {
+ const CXXRecordDecl *TheRecordDecl = getRecordDeclFromVarDecl(VD);
+ if (!TheRecordDecl)
+ return nullptr;
+
+ // the resource class attr could be on the record decl itself or on one of
+ // its fields (the resource handle, most commonly)
+ const auto *Attr = TheRecordDecl->getAttr<HLSLResourceClassAttr>();
+ if (!Attr) {
+ for (auto *FD : TheRecordDecl->fields()) {
+ Attr = FD->getAttr<HLSLResourceClassAttr>();
+ if (Attr)
+ break;
+ }
+ }
+ return Attr;
+ } else if (CBufferOrTBuffer) {
+ const auto *Attr = CBufferOrTBuffer->getAttr<HLSLResourceClassAttr>();
+ return Attr;
+ }
+ llvm_unreachable("one of the two conditions should be true.");
+ return nullptr;
+}
+
+const HLSLResourceAttr *
+getHLSLResourceAttrFromEitherDecl(VarDecl *VD,
+ HLSLBufferDecl *CBufferOrTBuffer) {
+
+ if (VD) {
+ const CXXRecordDecl *TheRecordDecl = getRecordDeclFromVarDecl(VD);
+ if (!TheRecordDecl)
+ return nullptr;
+
+ // the resource attr could be on the record decl itself or on one of
+ // its fields (the resource handle, most commonly)
+ const auto *Attr = TheRecordDecl->getAttr<HLSLResourceAttr>();
+ if (!Attr) {
+ for (auto *FD : TheRecordDecl->fields()) {
+ Attr = FD->getAttr<HLSLResourceAttr>();
+ if (Attr)
+ break;
+ }
+ }
+ return Attr;
+ } else if (CBufferOrTBuffer) {
+ const auto *Attr = CBufferOrTBuffer->getAttr<HLSLResourceAttr>();
+ return Attr;
+ }
+ llvm_unreachable("one of the two conditions should be true.");
+ return nullptr;
+}
+
+void traverseType(QualType TheQualTy, RegisterBindingFlags &Flags) {
----------------
bob80905 wrote:
Changed it to `setFlagsFromType`, hopefully a little clearer.
https://github.com/llvm/llvm-project/pull/97103
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