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When tools like llvm-cov show regions, it's much easier to understand
what's happening if the condition of an if shows a counter as well as
the body.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@229813 91177308-0d34-0410-b5e6-96231b3b80d8
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The coverage mapping generation code previously generated a large
number of redundant coverage regions and then tried to merge similar
ones back together. This then relied on some awkward heuristics to
prevent combining of regions that were importantly different but
happened to have the same count. The end result was inefficient and
hard to follow.
Now, we more carefully create the regions we actually want. This makes
it much easier to create regions at precise locations as well as
making the basic approach quite a bit easier to follow. There's still
a fair bit of complexity here dealing with included code and macro
expansions, but that's pretty hard to avoid without significantly
reducing the quality of data we provide.
I had to modify quite a few tests where the source ranges became more
precise or the old ranges seemed to be wrong anyways, and I've added
quite a few new tests since a large number of constructs didn't seem
to be tested before.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@229748 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@228035 91177308-0d34-0410-b5e6-96231b3b80d8
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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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215995 91177308-0d34-0410-b5e6-96231b3b80d8
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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.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215278 91177308-0d34-0410-b5e6-96231b3b80d8
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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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@215261 91177308-0d34-0410-b5e6-96231b3b80d8
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