US 2004/0001066 A1 · Apparatus and method for vectorization of detected saturation and clipping operations in serial code loops of a source program

Abstract

An apparatus and method for vectorization of detected saturation and clipping operations in serial code loops of a source program are described. In one embodiment, the method includes the analysis of source program code to identify source code utilizing conditional constructs to perform saturation/clipping operations. Once analysis is complete, identified source code is vectorized to implement identified saturation/clipping operations utilizing single instruction, multiple data (SIMD) saturation/clipping instructions. Accordingly, utilizing embodiments of the present invention, conditional statements utilized to implement saturation arithmetic, as well as clipping of data values, such as pixel values within graphics applications, are replaced with SIMD saturation arithmetic instructions, as well as clipping instructions.

Claims30

Dependent claims

A method comprising:

analyzing a source program to identify source code utilizing conditional constructs to perform saturation/clipping operations;
and
vectorizing identified source code to implement saturation/clipping operations using SIMD saturation/clipping instructions.

A computer readable storage medium including program instructions that direct a computer to perform one or more operations when executed by a processor, the one or more operations comprising:

analyzing a source program to identify source code utilizing conditional constructs to perform saturation/clipping operations;
and
vectorizing identified source code to implement saturation/clipping operations using SIMD saturation/clipping instructions.

A system, comprising:

a processor having circuitry to execute instructions;
a communications interface coupled to the processor, the communications interface to receive source programs, and to provide optimized target program executables once source programs are compiled;
and
a storage device coupled to the processor, having sequences of instructions stored therein, which when executed by the processor cause the processor to:
analyze a source program to identify source code utilizing conditional constructs to perform saturation/clipping operations, and
vectorize identified source code to implement saturation/clipping operations using SIMD saturation/clipping instructions.

3 more elements

Dependencies are inferred from the claim text.

Apparatus and method for vectorization of detected saturation and clipping operations in serial code loops of a source program

Life of this patent

Apparatus and method for vectorization of detected saturation and clipping operations in serial code loops of a source program

Life of this patent

Abstract

Claims30