OpenCL编译器预处理定义? [英] OpenCL compiler preprocessing definitions?

问题描述

我正在Snow Leopard上开发OpenCL代码，并且了解OpenCL即时编译是由Clang/LLVM完成的.是否完全使用了C预处理器?有没有办法用编译器设置预处理定义?存在哪些定义?

I am developing OpenCL code on Snow Leopard and understand that the OpenCL just-in-time compilation is done by Clang/LLVM. Is the C preprocessor used at all? Is there a way to set preprocessing definitions with the compiler? What definitions exist?

我希望代码知道它是针对CPU还是GPU编译的，因此例如可以使用printf语句进行调试.

I would like the code to be aware of whether it is compiled for CPU or GPU so I for instance can use printf statements for debugging.

推荐答案

clBuildProgram API使用编译器参数(const char * options参数).

the clBuildProgram API takes compiler arguments (the const char * options parameter).

-D MYMACRO被理解，-D MYMACRO=value也被理解.

-D MYMACRO is understood, so is -D MYMACRO=value.

关于哪些预定义的宏，请参见OpenCL规范以获取完整列表(第6.9节).非详尽清单:

As to what predefined macros, see the OpenCL specification for a full list (Section 6.9). A non exhaustive list:

• __FILE__
• __LINE__
• __OPENCL_VERSION__

• __FILE__
• __LINE__
• __OPENCL_VERSION__

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