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Author SHA1 Message Date
Duncan P. N. Exon Smith 531bb481e2 InstrProf: Actually detect bad headers 
<rdar://problem/15950346>

llvm-svn: 204510
 2014-03-21 20:42:28 +00:00
Justin Bogner b9bd7f85a7 ProfileData: Introduce InstrProfWriter using the naive text format 
This isn't a format we'll want to write out in practice, but moving it
to the writer library simplifies llvm-profdata and isolates it from
further changes to the format.

This also allows us to update the tests to not rely on the text output
format.

llvm-svn: 204489
 2014-03-21 17:46:22 +00:00
Justin Bogner f8d791983c ProfileData: Introduce the InstrProfReader interface and a text reader 
This introduces the ProfileData library and updates llvm-profdata to
use this library for reading profiles. InstrProfReader is an abstract
base class that will be subclassed for both the raw instrprof data
from compiler-rt and the efficient instrprof format that will be used
for PGO.

llvm-svn: 204482
 2014-03-21 17:24:48 +00:00