[PATCH] LLVM changes for indirect call target profiling support

[Xinliang David Li]

>> __llvm_profile_value_data here if we allocate that statically.
>

> Dynamic allocation is favored over static allocation.

yes. I have listed the reasons why dynamic allocation is preferred in
another thread.  Regarding Justin's concern about the runtime
overhead, I have done some profiling to see it can be a problem -- the
answer is no. The overhead from dynamic allocation is tiny and
negligible : ~0.0002% (2 out 1M samples).

thanks,

David


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