您可以使用由编译器生成的性能建议来优化您的代码。为了获得性能建议，请使用以下选项进行编译：

"filename.c": advice #27004: 未生成性能建议

示例 1：下述示例发送输出建议到 stdout 中（默认）：

cl6x -mv6400+ -o2 -k --advice:performance func.c

"func.c", line 10: advice #30006: Loop at line 8 cannot be scheduled efficiently
   as it contains a function call ("_init").Try making "_init" an inline
   function.
"func.c", line 12: advice #30000: Loop at line 8 cannot be scheduled efficiently
   as it contains a function call ("_calculate").Try to inline call or
   consider rewriting loop.
 

请注意，防止“软件流水线不合格”的建议（如上文所示）也会打印在 .asm 文件中。因此，func.asm 将包含：

;*----------------------------------------------------------------------------*
;*   SOFTWARE PIPELINE INFORMATION
;*      Disqualified loop: Loop contains a call
;*          Loop at line 8 cannot be scheduled efficiently as it contains a
;*          function call ("_init").Try making "_init" an inline function.
;*      Disqualified loop: Loop contains non-pipelinable instructions
;*      Disqualified loop: Loop contains a call
;*          Loop at line 8 cannot be scheduled efficiently as it contains a
;*          function call ("_calculate").Try to inline call or consider
;*          rewriting loop.
;*      Disqualified loop: Loop contains non-pipelinable instructions
;*----------------------------------------------------------------------------*

示例 2：下述示例发送输出建议到名为 filename.advice 的文件中：

cl6x -mv6400+ --advice:performance --advice:performance_file=filename.advice func.c

;******************************************************************************
;* TMS320C6x C/C++ Codegen         Unix v7.5.0P12047 (a0322878 - Feb 16 2012) *
;* Date/Time created: Thu Feb 16 10:26:02 2012                                *
;*                                                                            *
;* Warning: This file is auto generated by the compiler and can be            *
;* overwritten during the next compile.                                       *
;*                                                                            *
;******************************************************************************
;* User Options: --silicon_version=6400+
 
"func.c": advice #27000: Detecting compilation without optimization.Use
   optimization option -o2 or higher.
 

示例 3：下述示例使用不同的选项发送输出建议到 mydir 目录中名为 myfile.adv 的文件中。

使用 --advice:performance_file 和 --advice:performance_dir 选项：

cl6x -mv6400+ -o2 -k --advice:performance_file=myfile.adv --advice:performance_dir=mydir basicloop.c

仅使用 --advice:performance_file 选项来指定完整的路径名称：

cl6x -mv6400+ -o2 -k --advice:performance_file=mydir/myfile.adv basicloop.c

如果同时指定 --advice_dir 选项和完整的路径名称，则忽略 --advice:performance_dir 选项，并在完整的路径名称建议文件中生成建议。另外，请注意目录“mydir”必须已经存在，才能在其中创建建议文件。