c++ - VS 10 中英特尔 C++ 编译器的矢量化报告目录

Question

在 VS 10 中，我将“矢量化诊断级别”设置为“n=2”，将“优化诊断阶段”设置为“hpo”，如“英特尔 C++ 编译器矢量化指南”中所述。但是，（这可能是一个愚蠢的问题），该报告在哪里？“输出”中既没有显示内容，也没有项目目录。

Answer 1

矢量化诊断通常作为正常编译器诊断输出的一部分发出，例如

$ icc -Wall -msse3 foo.c -vec-report=2 -o foo

...

foo.c(1337): (col. 5) remark: loop was not vectorized: existence of vector dependence.
foo.c(1337): (col. 5) remark: loop was not vectorized: not inner loop.
foo.c(1337): (col. 5) remark: loop was not vectorized: not inner loop.
foo.c(1337): (col. 5) remark: loop was not vectorized: existence of vector dependence.
foo.c(1337): (col. 5) remark: loop was not vectorized: existence of vector dependence.
foo.c(1337): (col. 5) remark: loop was not vectorized: nonstandard loop is not a vectorization candidate.
foo.c(1337): (col. 5) remark: loop was not vectorized: not inner loop.
foo.c(1337): (col. 5) remark: LOOP WAS VECTORIZED.
foo.c(1339): (col. 5) remark: loop was not vectorized: existence of vector dependence.
foo.c(1339): (col. 5) remark: loop was not vectorized: existence of vector dependence.
foo.c(1339): (col. 5) remark: loop was not vectorized: not inner loop.
foo.c(1339): (col. 5) remark: loop was not vectorized: statement cannot be vectorized.
foo.c(1339): (col. 5) remark: loop was not vectorized: not inner loop.

...

$

Answer 2

我在写的一个项目中遇到了同样的问题。它是基于 SDK 中给出的示例代码的插件。

如果编译/构建过程配置为“调试”模式，则不会应用优化，因此不会给出报告。

你可能有同样的问题。

我在确定如何切换到“发布模式”时遇到问题（在配置面板中不可用）： Switching from Debug into Release Mode with VS2010 as IDE and Intel C++ Compiler 13

请让我们知道它是否对您有用。