[cfe-dev] Clang AST: find out functions with attribute(opencl_kernel_function)

[GabrieleCocco]

Hi.
I'm currently developing a standalone tool using Clang to find (and do some
transformation) functions declared using the OpenCL kernel syntax, i.e. 

kernel void fun(...) { }

While traversing the AST and dumping functions, I discovered "kernel" means
__attribute__(opencl_kernel_syntax).
Anyway, I'm not sure about how to determine is a functions has this
attribute. 
By now, the code looks like:

FunctionDecl* function = static_cast<FunctionDecl*>(declaration);
if(function->hasAttrs()) {
  AttrVec attributes = function->getAttrs();
  for(Decl::attr_iterator iterator = function->attr_begin(); iterator !=
function->attr_end(); iterator++) {
       Attr* attribute = *iterator;
  }
}

Anyway, I'm not able to figure out how to use the class Attr to determine
that the attribute considered is just opencl_kernel_syntax.
Can you help me?

Thank you very much!



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