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Systems and methods for building a platform specific compiler having an embedded instruction selector in a multi-platform environment are provided. A set of user defined platform dependent compiler architecture descriptors that describe corresponding architectural features and a set of instruction p

Systems and methods for building a platform specific compiler having an embedded instruction selector in a multi-platform environment are provided. A set of user defined platform dependent compiler architecture descriptors that describe corresponding architectural features and a set of instruction predicates defining those instructions to be selected are converted to platform dependent compiler object code and instruction selector object code, respectively. The platform specific compiler having the embedded instruction selector is formed from the platform dependent compiler object code, the instruction selector object code, and the platform independent compiler object code.

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[ What is claimed is:] [7.]7. A method of building a platform specific compiler having an embedded instruction selector, comprising:providing a set of user defined platform dependent compiler architecture descriptors that describe corresponding architectural features of a particular hardware platfor

[ What is claimed is:] [7.]7. A method of building a platform specific compiler having an embedded instruction selector, comprising:providing a set of user defined platform dependent compiler architecture descriptors that describe corresponding architectural features of a particular hardware platform dependent compiler;providing a set of user defined instruction predicates used by the embedded instruction selector to select those instructions to be compiled by the platform specific compiler during run time;converting the set of user defined platform dependent compiler architecture descriptors into platform dependent compiler source code by an architecture descriptor compiler;converting the set of user defined instruction predicates into platform instruction selector source code by an architecture descriptor compiler;compiling the platform dependent compiler source code into platform dependent object code by a host compiler coupled to the architecture descriptor compiler;compiling the instruction selector source code into instruction selector object code by a host compiler coupled to the architecture descriptor compiler;during runtime,providing an information request to a platform independent interface arranged to mediate a transfer of information between selected portions of the platform dependent object code and the instruction selection object code;directing the information request to a pre-determined platform dependent compiler object code information retriever by the interface;providing platform independent compiler object code, wherein the platform independent compiler object code and the platform dependent compiler object code are suitable for execution on the particular hardware platform; andforming the embedded instruction selector from the platform dependent compiler object code, the instruction selector object code, and the platform independent compiler object code, wherein the embedded instruction selector selects an instruction to be compiled based upon an associated execution cost of the selected instruction, and wherein the embedded instruction selector provides an implicit instruction predicate used by the platform specific compiler to compile the selected instruction.