Emit DebugTypePointer when non-semantic debug info is enabled.

SPIRV/SpvBuilder.cpp

@@ -242,6 +242,11 @@ Id Builder::makePointer(StorageClass storageClass, Id pointee)
     constantsTypesGlobals.push_back(std::unique_ptr<Instruction>(type));
     module.mapInstruction(type);
 
+    if (emitNonSemanticShaderDebugInfo) {
+        const Id debugResultId = makePointerDebugType(storageClass, pointee);
+        debugId[type->getResultId()] = debugResultId;
+    }
+
     return type->getResultId();
 }
 
@@ -1070,6 +1075,34 @@ Id Builder::makeCompositeDebugType(std::vector<Id> const& memberTypes, char cons
     return type->getResultId();
 }
 
+Id Builder::makePointerDebugType(StorageClass storageClass, Id const baseType)
+{
+    const Id debugBaseType = debugId[baseType];
+    if (!debugBaseType) {
+        return makeDebugInfoNone();
+    }
+    const Id scID = makeUintConstant(storageClass);
+    for (Instruction* otherType : groupedDebugTypes[NonSemanticShaderDebugInfo100DebugTypePointer]) {
+        if (otherType->getIdOperand(2) == debugBaseType &&
+            otherType->getIdOperand(3) == scID) {
+            return otherType->getResultId();
+        }
+    }
+
+    Instruction* type = new Instruction(getUniqueId(), makeVoidType(), OpExtInst);
+    type->addIdOperand(nonSemanticShaderDebugInfo);
+    type->addImmediateOperand(NonSemanticShaderDebugInfo100DebugTypePointer);
+    type->addIdOperand(debugBaseType);
+    type->addIdOperand(scID);
+    type->addIdOperand(makeUintConstant(0));
+
+    groupedDebugTypes[NonSemanticShaderDebugInfo100DebugTypePointer].push_back(type);
+    constantsTypesGlobals.push_back(std::unique_ptr<Instruction>(type));
+    module.mapInstruction(type);
+
+    return type->getResultId();
+}
+
 Id Builder::makeDebugSource(const Id fileName) {
     if (debugSourceId.find(fileName) != debugSourceId.end())
         return debugSourceId[fileName];

SPIRV/SpvBuilder.h

@@ -226,6 +226,7 @@ class Builder {
     Id makeMemberDebugType(Id const memberType, DebugTypeLoc const& debugTypeLoc);
     Id makeCompositeDebugType(std::vector<Id> const& memberTypes, char const*const name,
         NonSemanticShaderDebugInfo100DebugCompositeType const tag, bool const isOpaqueType = false);
+    Id makePointerDebugType(StorageClass storageClass, Id const baseType);
     Id makeDebugSource(const Id fileName);
     Id makeDebugCompilationUnit();
     Id createDebugGlobalVariable(Id const type, char const*const name, Id const variable);