Method and apparatus for easy insertion of assembler code for op

Details Method and apparatus for easy insertion of assembler code for op Method and apparatus for easy insertion of assembler code for op

1996-05-07

1998-09-29

Voeltz, Emanuel Todd

395705, 395709, G06F 945

Patent

active

058157190

ABSTRACT:
Small assembly code routines are inlined with source code prior to optimization processing in a compiler in a data processing system. Each assembly code routine is presented to the compiler in the form of a template having instructions and operands. Whenever a call to the template is detected by the compiler, the instructions and operands of the template are examined by the compiler to determine whether all instructions and operands in the template are recognizable by the compiler for optimization processing. If so, the assembly code template is virtualized by transforming physical registers to virtual registers, and the intermediate code form of the template is combined with the intermediate code form of the source code. This combined code is then subjected to optimization procedures in the compiler, and the result is used to generate the assembly code. The assembly code from any template not eligible for early inlining is later inlined with the assembly code generated by the compiler after the optimization processing.

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