Abstract: A JIT (Just-In-Time) compiler performs dual-mode code generation by determining whether an application has opted-in to SIMD (Single Instruction Multiple Data) code generation both at JIT-time and at runtime. The application may select the code generation mode by identifying whether it has opted-in to SIMD code generation. As a result, the underlying implementation guarantees application compatibility by allowing the application to select the code generation mode. Additionally, applications have the ability to select into different code generation modes during concurrent execution.

Abstract: A JIT (Just-In-Time) compiler performs dual-mode code generation by determining whether an application has opted-in to SIMD (Single Instruction Multiple Data) code generation both at JIT-time and at runtime. The application may select the code generation mode by identifying whether it has opted-in to SIMD code generation. As a result, the underlying implementation guarantees application compatibility by allowing the application to select the code generation mode. Additionally, applications have the ability to select into different code generation modes during concurrent execution.

Abstract: A request is received for a class object from a requester, wherein the class object corresponds to a type object from an assembly. The requested class object is returned to the requester.

Abstract: Multiple software facilities are described. A property mapping facility enables a programming language compiler to map properties defined according to one property accessor style to another property accessor style. A reference mapping facility enables a programming language compiler to emit instructions that cause a parameter to a method to be provided by reference even when the programming language does not support providing parameters by reference. A type extension facility enables a programming language compiler to extend the number of declarative type modifiers that the compiler supports. A partial class facility enables a programming language compiler to postpone compiling a class marked as partial until the compiler can compile the entire class. A value type facility enables a programming language compiler to recognize “value data types” that offer advantages of both reference data types and primitive data types.

Abstract: A method includes writing JAVA™ language source code that includes a definition of a generic class, generating an instance of the generic class; and compiling the instance of the generic class into common intermediate language code executable by a runtime engine. A system operably receives input representing a generic class definition in a JAVA™ language, receives source code that references the generic class, compiles the source code with an instance of the generic class into common intermediate language code executable by a runtime engine.