opt_vectorize_loops. NXP CodeWarrior Development Studio

opt_vectorize_loops

If you enable this pragma, the compiler places multiple copies of a loop's statements inside a loop to improve its speed.

This pragma does not correspond to any panel setting. By default, this settings is related to the

"global_optimizer" on page 471

level.

35.15 opt_vectorize_loops

Controls the use of loop vectorizing optimization.

Syntax

#pragma opt_vectorize_loops on | off | reset

Remarks

If you enable this pragma, the compiler improves loop performance.

NOTE

Do not confuse loop vectorizing with the vector instructions available in some processors. Loop vectorizing is the rearrangement of instructions in loops to improve performance.

This optimization does not optimize a processor's vector data types.

By default, this pragma is off

.

35.16 optimization_level

Controls global optimization.

Syntax

#pragma optimization_level 0 | 1 | 2 | 3 | 4 | reset

Remarks

This pragma specifies the degree of optimization that the global optimizer performs.

To select optimizations, use the pragma optimization_level with an argument from 0 to 4.

The higher the argument, the more optimizations performed by the global optimizer. The reset argument specifies the previous optimization level.

CodeWarrior Development Studio for Power Architecture Processors Build Tools Reference Manual, Rev.

10.6, 02/2014

520 Freescale Semiconductor, Inc.