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We include unused functions and methods in -fcoverage-mapping so that
we can differentiate between uninstrumented and unused. This can cause
problems for uninstantiated templates though, since they may involve
an incomplete type that can't be mangled. This shows up in things like
libc++'s <unordered_map> and makes coverage unusable.
Avoid the issue by skipping uninstantiated methods of a templated
class.
llvm-svn: 222204
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When generating coverage regions, we were doing a linear search
through the existing regions in order to try to merge related ones.
Most of the time this would find what it was looking for in a small
number of steps and it wasn't a big deal, but in cases with many
regions and few mergeable ones this leads to an absurd compile time
regression.
This changes the coverage mapping logic to do a single sort and then
merge as we go, which is a bit simpler and about 100 times faster.
I've also added FIXMEs on a couple of behaviours that seem a little
suspect, while keeping them behaving as they were - I'll look into
these soon.
The test changes here are mostly tedious reorganization, because the
ordering of regions we output has become slightly (but not completely)
more consistent from the almost completely arbitrary ordering we got
before.
llvm-svn: 218738
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The profile data format was recently updated and the new indexing api
requires the code coverage tool to know the function's hash as well
as the function's name to get the execution counts for a function.
Differential Revision: http://reviews.llvm.org/D4995
llvm-svn: 216208
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Filecheck".
Change the lit RUN commands for 3 tests to use the following pattern
"FileCheck -input-file ..." instead of "cat ... | FileCheck ..." as
suggested by Justin Bogner.
llvm-svn: 216085
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llvm-svn: 216082
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llvm-svn: 216081
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Add the llvm-lit RUN commands for the two coverage mapping tests
that filecheck a temporary file.
llvm-svn: 216020
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This patch adds the tests for the coverage mapping generation.
Most of the tests check the mapping regions produced by
the generator, and one checks the llvm IR.
Differential Revision: http://reviews.llvm.org/D4847
llvm-svn: 215995
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I reverted one of the added tests from r215261 in r215274, since it
was failing on quite a few bots. It looks like this wasn't sufficient,
as we're still getting failures on windows, like the following:
http://bb.pgr.jp/builders/ninja-x64-msvc-RA-centos6/builds/5378
I'm reverting this entire commit so the bots aren't blocked on these
failures.
This reverts commit r215261.
llvm-svn: 215278
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The (new) CoverageMapping/macroparams.c test is failing on a number of
buildbots. Reverting it until Alex can investigate and fix the test.
llvm-svn: 215274
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This patch adds the tests for the coverage mapping generation.
Most of the tests check the mapping regions produced by
the generator, and one checks the llvm IR.
Differential Revision: http://reviews.llvm.org/D4793
llvm-svn: 215261
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