System for deleting redundant instructions from high level langu

Details System for deleting redundant instructions from high level langu System for deleting redundant instructions from high level langu

1994-07-06

1998-11-03

Voeltz, Emanuel Todd

G06F 945

Patent

active

058322736

ABSTRACT:
A language processing system comprises an instruction parsing portion parsing instruction statement contained in a source program written by a high-level language and an assembler language in admixing manner, a register information discriminating portion discriminating if the instruction statement parsed by the instruction parsing portion is a register information indicative of a register value corresponding to a register operating instruction described by the assembler language, an intermediate code generating portion for generating an intermediate code of the instruction statement, a register information storage portion for storing the register information discriminated by the register information discriminating portion, a code optimizing portion for performing optimization by deleting a register operating instruction with respect to the register operating instruction code in the intermediate code when the register value indicated therein is the same as a register value indicated by an immediately preceding register information or an immediately preceding register operating instruction code, and code generating portion for generating a machine language code from the intermediate code optimized through the code optimization and outputting an object code.

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no author, "Borland C + + Version 2.0," Borland International, 1991, pp. 273-281.

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