[dxbc] Implemented temporary register declarations

src/dxbc/dxbc_compiler.cpp

@@ -8,6 +8,13 @@ namespace dxvk {
     
     this->declareCapabilities();
     this->declareMemoryModel();
+    
+    m_typeVoid      = m_module.defVoidType();
+    m_typeFunction  = m_module.defFunctionType(m_typeVoid, 0, nullptr);
+    
+    m_module.functionBegin(m_typeVoid,
+      m_entryPointId, m_typeFunction,
+      spv::FunctionControlMaskNone);
   }
   
   
@@ -20,12 +27,16 @@ namespace dxvk {
     const DxbcOpcodeToken token = ins.token();
     
     switch (token.opcode()) {
+      case DxbcOpcode::DclTemps: {
+        this->dclTemps(ins.arg(0));
+      } return true;
+      
       case DxbcOpcode::DclThreadGroup: {
         m_module.setLocalSize(
           m_entryPointId,
-          ins.getArgWord(0),
-          ins.getArgWord(1),
-          ins.getArgWord(2));
+          ins.arg(0),
+          ins.arg(1),
+          ins.arg(2));
       } return true;
       
       default:
@@ -37,6 +48,8 @@ namespace dxvk {
   
   
   Rc<DxvkShader> DxbcCompiler::finalize() {
+    m_module.functionEnd();
+    
     return new DxvkShader(m_version.shaderStage(),
       m_module.compile(), 0, nullptr);
   }
@@ -67,4 +80,22 @@ namespace dxvk {
       spv::MemoryModelGLSL450);
   }
   
+  void DxbcCompiler::dclTemps(uint32_t n) {
+    // Temporaries are treated as untyped 4x32-bit vectors.
+    uint32_t u32Type = m_module.defIntType(32, 0);
+    uint32_t regType = m_module.defVectorType(u32Type, 4);
+    uint32_t ptrType = m_module.defPointerType(regType, spv::StorageClassPrivate);
+    
+    for (uint32_t i = 0; i < n; i++) {
+      DxbcRegTypeR reg;
+      reg.varType = regType;
+      reg.ptrType = ptrType;
+      reg.varId   = m_module.newVar(ptrType, spv::StorageClassPrivate);
+      m_rRegs.push_back(reg);
+      
+      m_module.setDebugName(reg.varId,
+        str::format("r", i).c_str());
+    }
+  }
+  
 }

src/dxbc/dxbc_compiler.h

@@ -6,6 +6,12 @@
 
 namespace dxvk {
   
+  struct DxbcRegTypeR {
+    uint32_t varType;
+    uint32_t ptrType;
+    uint32_t varId;
+  };
+  
   /**
    * \brief DXBC to SPIR-V compiler
    * 
@@ -43,11 +49,18 @@ namespace dxvk {
     DxbcProgramVersion  m_version;
     SpirvModule         m_module;
     
+    std::vector<DxbcRegTypeR> m_rRegs;
+    
     uint32_t m_entryPointId = 0;
     
+    uint32_t m_typeVoid     = 0;
+    uint32_t m_typeFunction = 0;
+    
     void declareCapabilities();
     void declareMemoryModel();
     
+    void dclTemps(uint32_t n);
+    
   };
   
 }

src/dxbc/dxbc_decoder.h

@@ -415,7 +415,7 @@ namespace dxvk {
      * \param [in] idx Argument word index
      * \returns The word at the given index
      */
-    uint32_t getArgWord(uint32_t idx) const {
+    uint32_t arg(uint32_t idx) const {
       return m_args.getWord(idx);
     }
     
@@ -425,7 +425,7 @@ namespace dxvk {
      * \param [in] idx Argument word index
      * \returns The operand object
      */
-    DxbcOperand getOperand(uint32_t idx) const {
+    DxbcOperand operand(uint32_t idx) const {
       return DxbcOperand(m_args + idx);
     }
     

src/spirv/spirv_module.cpp

@@ -55,7 +55,9 @@ namespace dxvk {
   void SpirvModule::setMemoryModel(
           spv::AddressingModel    addressModel,
           spv::MemoryModel        memoryModel) {
-    
+    m_memoryModel.putIns  (spv::OpMemoryModel, 3);
+    m_memoryModel.putWord (addressModel);
+    m_memoryModel.putWord (memoryModel);
   }
   
   
@@ -77,7 +79,9 @@ namespace dxvk {
   void SpirvModule::setDebugName(
           uint32_t                expressionId,
     const char*                   debugName) {
-    
+    m_debugNames.putIns (spv::OpName, 2 + m_debugNames.strLen(debugName));
+    m_debugNames.putWord(expressionId);
+    m_debugNames.putStr (debugName);
   }
   
   
@@ -286,8 +290,8 @@ namespace dxvk {
           uint32_t                variableType,
           spv::StorageClass       storageClass) {
     std::array<uint32_t, 2> args = {
-      variableType,
       storageClass,
+      variableType,
     };
     
     return this->defType(spv::OpTypePointer,
@@ -295,6 +299,19 @@ namespace dxvk {
   }
   
   
+  uint32_t SpirvModule::newVar(
+          uint32_t                pointerType,
+          spv::StorageClass       storageClass) {
+    uint32_t resultId = this->allocateId();
+    
+    m_variables.putIns  (spv::OpVariable, 4);
+    m_variables.putWord (pointerType);
+    m_variables.putWord (resultId);
+    m_variables.putWord (storageClass);
+    return resultId;
+  }
+  
+  
   void SpirvModule::functionBegin(
           uint32_t                returnType,
           uint32_t                functionId,

src/spirv/spirv_module.h

@@ -115,6 +115,10 @@ namespace dxvk {
             uint32_t                variableType,
             spv::StorageClass       storageClass);
     
+    uint32_t newVar(
+            uint32_t                pointerType,
+            spv::StorageClass       storageClass);
+    
     void functionBegin(
             uint32_t                returnType,
             uint32_t                functionId,