tms320c6000系列 arm_tms320c6000_tms320c6000 ppt(4)

3 优化代码............................................................................................................................................... 53

3.1 执行优化 ............................................................................................................. 54

3.2 优化软件流水 ........................................................................................................ 55

3.2.1 关闭软件流水 (-mu 选项)................................................................................ 56

3.2.2 软件流水信息 ............................................................................................. 56

3.2.3 压缩流水填充与排空以提高性能和减小代码尺寸 ..................................................... 61

3.3 冗余循环 ............................................................................................................. 63

3.4 在 C6400+ 上使用开启 SPLOOP 利用循环缓冲 .............................................................. 64

3.5 减小代码尺寸 (-ms 选项) .......................................................................................... 64

3.6 执行文件级优化 ( -O3 选项)........................................................................................ 65

3.6.1 控制文件级优化(-ol 选项) ............................................................................... 65

3.6.2 创建优化信息文件 (-on 选项) .......................................................................... 65

3.7 执行程序级优化(-pm 和 -O3 选项) ............................................................................... 66

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