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This adds support for an indexed instrumentation based profiling
format, which is just a small header and an on disk hash table. This
format will be used by clang's -fprofile-instr-use= for PGO.
llvm-svn: 206656
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No functionality change.
llvm-svn: 204580
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Since the profile can come from 32-bit machines, we need to check the
pointer size. Change the magic number to facilitate this.
Adds tests for reading 32-bit and 64-bit binaries (both big- and
little-endian). The tests write a binary using printf in RUN lines
(like raw-magic-but-no-header.test). Assuming the bots don't complain,
this seems like a better way forward for testing RawInstrProfReader than
committing binary files.
<rdar://problem/16400648>
llvm-svn: 204557
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Fixes 80-column violation at the same time.
<rdar://problem/15950346>
llvm-svn: 204516
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Include non-text characters in the magic number so that text files can't
match.
<rdar://problem/15950346>
llvm-svn: 204513
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<rdar://problem/15950346>
llvm-svn: 204512
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No functionality change.
<rdar://problem/15950346>
llvm-svn: 204511
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<rdar://problem/15950346>
llvm-svn: 204510
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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
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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
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