[Openmp-dev] Number of variable arguments to microtask in __kmp_invoke_microtask

[Carlo Bertolli]

Hi all,

I noticed that clang generates code with only one "variable argument" to
__kmpc_fork_call (i.e. ultimately to __kmp_invoke_microtask) - that is the
struct.anon pointer that contains the pointers to all arguments used in the
microtask.

I tried with multiple cases, but I always get the same number of arguments
passed to the invoke_microtask function.

- Does anyone know about examples in which more arguments are used? I tried
examples which reference a different number of arrays and shared variables,
but nothing changes.

- Do other compilers targeting libiomp make use of the variable argument
array to store the microtask arguments (instead of using a struct of
pointers)?

Thanks for any help


-- Carlo
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