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- Make indexed value profile data more compact by peeling out
the per-site value count field into its own smaller sized array.
- Introduced formal data structure definitions to specify value
profile data layout in indexed format. Previously the layout
of the data is only assumed in the client code (scattered in
three different places : size computation, EmitData, and ReadData
- The new data structure serves as a central place for layout documentation.
- Add interfaces to force BE output for value profile data (testing purpose)
- Add byte swap unit tests
Differential Revision: http://reviews.llvm.org/D14401
llvm-svn: 252563
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Fixed warnings are: modernize-use-override, modernize-use-nullptr and modernize-redundant-void-arg.
Differential revision: http://reviews.llvm.org/D14312
llvm-svn: 252087
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1. Added a set of public interfaces in InstrProfRecord
class to access (read/write) value profile data.
2. Changed IndexedProfile reader and writer code to
use the newly defined interfaces and hide implementation
details.
3. Added a couple of unittests for value profiling:
- Test new interfaces to get and set value profile data
- Test value profile data merging with various scenarios.
No functional change is expected. The new interfaces will also
make it possible to change on-disk format of value prof data
to be more compact (to be submitted).
llvm-svn: 251771
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Add support to the indexed instrprof reader and writer for the format
that will be used for value profiling.
Patch by Betul Buyukkurt, with minor modifications.
llvm-svn: 248833
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This functionality wasn't being tested.
Patch by Betul Buyukkurt.
llvm-svn: 240359
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Have the InstrProfWriter return a MemoryBuffer instead of a
std::string. This fixes the alignment issues the reader would hit, and
it's a more appropriate type for this anyway.
I've also removed an ugly helper function that's not needed since
we're allowing initializer lists now, and updated some error code
checks based on MSVC's issues with r229473.
This reverts r229483, reapplying r229478.
llvm-svn: 229602
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This added API to the InstrProfWriter to write to a string so I could
write unittests without using temp files. This doesn't really work,
since the format has tighter alignment requirements than a char.
This reverts r229478 and its follow-up, r229481.
llvm-svn: 229483
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llvm-svn: 229481
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Add these tests again, but use va_list instead of initializer lists.
This reverts r229456, reapplying r229455.
llvm-svn: 229478
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Looks like the bots don't like my initializer lists.
This reverts r229455
llvm-svn: 229456
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This required some minor API to be added to these types to avoid
needing temp files.
Also, I've used initializer lists in the tests, as MSVC 2013 claims to
support them. I'll redo this without them if the bots complain.
llvm-svn: 229455
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