[PATCH] Support for reading program counts in llvm-cov

[Yuchen Wu]

I forgot to actually attach the patch. My apologies!

----------------------------------------
> From: yuchenericwu at hotmail.com
> To: llvm-commits at cs.uiuc.edu
> Subject: [PATCH] Support for reading program counts in llvm-cov
> Date: Wed, 23 Oct 2013 21:58:09 -0400
>
> Support for reading program counts in llvm-cov.
>
> llvm-cov will now be able to read program counts from the GCDA file and
> output it in the same format as gcov. The program summary tag was
> identified from gcov-io.h as "\0\0\0\a3".
>
> There is currently a bug in GCOVProfiling.cpp which does not generate the
> run- or program-counting IR, so this change was tested manually by
> modifying the GCDA file and comparing the gcov and llvm-cov outputs.
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