[dxbc] Implemented BfRev instruction

src/dxbc/dxbc_compiler.cpp

@@ -1324,6 +1324,11 @@ namespace dxvk {
           typeId, src.at(0).id);
         break;
       
+      case DxbcOpcode::BfRev:
+        dst.id = m_module.opBitReverse(
+          typeId, src.at(0).id);
+        break;
+      
       ///////////////////////////
       // Conversion instructions
       case DxbcOpcode::ItoF:

src/dxbc/dxbc_defs.cpp

@@ -693,7 +693,10 @@ namespace dxvk {
       { DxbcOperandKind::SrcReg, DxbcScalarType::Uint32 },
     } },
     /* BfRev                                */
-    { },
+    { 2, DxbcInstClass::VectorAlu, {
+      { DxbcOperandKind::DstReg, DxbcScalarType::Uint32 },
+      { DxbcOperandKind::SrcReg, DxbcScalarType::Uint32 },
+    } },
     /* Swapc                                */
     { 5, DxbcInstClass::VectorCmov, {
       { DxbcOperandKind::DstReg, DxbcScalarType::Float32 },

src/spirv/spirv_module.cpp

@@ -946,6 +946,19 @@ namespace dxvk {
   }
   
   
+  uint32_t SpirvModule::opBitReverse(
+          uint32_t                resultType,
+          uint32_t                operand) {
+    uint32_t resultId = this->allocateId();
+    
+    m_code.putIns (spv::OpBitReverse, 4);
+    m_code.putWord(resultType);
+    m_code.putWord(resultId);
+    m_code.putWord(operand);
+    return resultId;
+  }
+  
+  
   uint32_t SpirvModule::opFindILsb(
           uint32_t                resultType,
           uint32_t                operand) {

src/spirv/spirv_module.h

@@ -381,6 +381,10 @@ namespace dxvk {
             uint32_t                resultType,
             uint32_t                operand);
     
+    uint32_t opBitReverse(
+            uint32_t                resultType,
+            uint32_t                operand);
+    
     uint32_t opFindILsb(
             uint32_t                resultType,
             uint32_t                operand);