Hi,
I hope this is the right list for this question.
I wrote a Clang/LLVM plugin as a function pass to do some application specific optimazations on my C/C++ code.
To exclude functions from this optimazation pass I want to use C++11 custom function attributes and want to set “plugin_do_not_optimize” like this. I want to check it in my pass and if it is set, simply skip the pass.
void
foo( void ) __attribute__(( plugin_do_not_optimize ))
{
printf( "Hello world. \n" );
}
I found the AttributBuilder in the docs but cant get rid of it, catching my attribute.
I already tried
f.hasFnAttribute("plugin_do_not_optimize");
but it does not return true on the function above and I get the following error:
test.cpp:4:28: warning: unknown attribute 'plugin_do_not_optimize' ignored [-Wunknown-attributes]
How to declare my attribute in clang and get the information if it is set in my pass?
Best regards,
Shixin Wang