[cfe-dev] OpenCL vector data types

[Alberto Magni]

Hi everybody,

for my master thesis I am extending clang in order to support OpenCL, at
least the most important features.
I am adding the support for vector data types.

As I saw in many of the test cases in the suite the standard way to support
them is using the ext_vector_type attribute, like this:

typedef __attribute__(( ext_vector_type(4) )) int int4;

My problem is that OpenCL supports a variety of vector data types: charn,
intn, floatn ...
There are 9 basic types supported and 'n' can assume 6 different values.
Moreover every vector type has an alias: cl_charn, cl_intn, ... and so on.
This will end up in 108 typedefs to add in the Preprocessor intialization
phase.
Can this be a problem?
Is there a better way to suppor all this types ?

Thank you in advance,

Alberto
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