Commit Graph

556 Commits

Author SHA1 Message Date
Duncan P. N. Exon Smith 09a67f45ee InstrProf: Detect magic numbers in a more scalable way
No functionality change.

<rdar://problem/15950346>

llvm-svn: 204511
2014-03-21 20:42:31 +00:00
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
Duncan P. N. Exon Smith 24b4b65339 InstrProf: Read raw binary profile in llvm-profdata
Read a raw binary profile that corresponds to a memory dump from the
runtime profile.

The test is a binary file generated from
cfe/trunk/test/Profile/c-general.c with the new compiler-rt runtime and
the matching text version of the input.  It includes instructions on how
to regenerate.

<rdar://problem/15950346>

llvm-svn: 204496
2014-03-21 18:26:05 +00:00
Justin Bogner 47b8768fc0 ProfileData: Avoid brace initialization, windows doesn't like it
llvm-svn: 204494
2014-03-21 18:22:16 +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