[LLVM-COV]Replace tabs to the space indentations in the HTML coverage report.

When using orbis-llvm-cov.exe to generate the HTML report, the HTML report
can look quite different to the source file

[LLVM-COV]Replace tabs to the space indentations in the HTML coverage report.

When using orbis-llvm-cov.exe to generate the HTML report, the HTML report
can look quite different to the source file if it includes tabs.The default
tab size is 2 spaces instead of 8 spaces. A command line switch is
be added to set the tab size.

Differential Revision: https://reviews.llvm.org/D23087

llvm-svn: 277715

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Retry: [llvm-cov] Add support for exporting coverage data to JSON

This enables users to export coverage information as portable JSON for use by
analysis tools and storage in document based databases

Retry: [llvm-cov] Add support for exporting coverage data to JSON

This enables users to export coverage information as portable JSON for use by
analysis tools and storage in document based databases.

The export sub-command is invoked just like the others:

llvm-cov export -instr-profile path/to/foo.profdata path/to/foo.binary

The resulting JSON contains a list of files and functions. Every file object
contains a list of segments, expansions, and a summary of the file's region,
function, and line coverage. Every function object contains the function's name
and regions. There is also a total summary for the entire object file.

Changes since the initial commit (r276813):

- Fixed the regexes in the tests to handle Windows filepaths.

Patch by Eddie Hurtig!

Differential Revision: https://reviews.llvm.org/D22651

llvm-svn: 276818

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Revert "[llvm-cov] Add support for exporting coverage data to JSON"

This reverts commit r276813. The Windows bots are complaining about some
of the filename regexes in the tests:

http://bb.pgr.jp

Revert "[llvm-cov] Add support for exporting coverage data to JSON"

This reverts commit r276813. The Windows bots are complaining about some
of the filename regexes in the tests:

http://bb.pgr.jp/builders/ninja-clang-i686-msc19-R/builds/5299

llvm-svn: 276816

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[llvm-cov] Add support for exporting coverage data to JSON

This enables users to export coverage information as portable JSON for use by
analysis tools and storage in document based databases.

The

[llvm-cov] Add support for exporting coverage data to JSON

This enables users to export coverage information as portable JSON for use by
analysis tools and storage in document based databases.

The export sub-command is invoked just like the others:

llvm-cov export -instr-profile path/to/foo.profdata path/to/foo.binary

The resulting JSON contains a list of files and functions. Every file object
contains a list of segments, expansions, and a summary of the file's region,
function, and line coverage. Every function object contains the function's name
and regions. There is also a total summary for the entire object file.

Patch by Eddie Hurtig!

Differential Revision: https://reviews.llvm.org/D22651

llvm-svn: 276813

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[llvm-cov] Re-write a very opaque comment (NFC)

llvm-svn: 275843

[llvm-cov] Clean up error reporting (NFC)

Use CodeCoverageTool::{error,warning} everywhere.

llvm-svn: 275837

[llvm-cov] Attempt to appease an older builder

It's using a version of clang which can't (or won't) deduce an implicit
conversion from a SmallString to a StringRef. Write the conversion out
explicit

[llvm-cov] Attempt to appease an older builder

It's using a version of clang which can't (or won't) deduce an implicit
conversion from a SmallString to a StringRef. Write the conversion out
explicitly:

http://lab.llvm.org:8011/builders/lldb-x86_64-ubuntu-14.04-buildserver/builds/8574

llvm-svn: 275647

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[llvm-cov] Attempt to appease Windows bots

They appear to reject r275640 because stdin is held open during an
ExecuteAndWait in which it's redirected:

http://lab.llvm.org:8011/builders/llvm-clang

[llvm-cov] Attempt to appease Windows bots

They appear to reject r275640 because stdin is held open during an
ExecuteAndWait in which it's redirected:

http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/8390

llvm-svn: 275642

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[llvm-cov] Optionally use a symbol demangler when preparing reports

Add an option to specify a symbol demangler (as well as options to the
demangler). This can be used to make reports more human-rea

[llvm-cov] Optionally use a symbol demangler when preparing reports

Add an option to specify a symbol demangler (as well as options to the
demangler). This can be used to make reports more human-readable.

This option is especially useful in -output-dir mode, since it isn't as
easy to manually pipe reports into a demangler in this mode.

llvm-svn: 275640

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[llvm-cov] Document a few private fields of CodeCoverageTool (NFC)

llvm-svn: 275639

[llvm-cov] Improve error messages

While we're at it, extend an existing test to make sure that error
messages look reasonable.

llvm-svn: 275520

[llvm-cov] Fix a use-after-free

Taking a lock before appending to a vector does no good unless threads
reading from the vector also take the lock, because the vector could be
re-sized.

I don't have

[llvm-cov] Fix a use-after-free

Taking a lock before appending to a vector does no good unless threads
reading from the vector also take the lock, because the vector could be
re-sized.

I don't have a good isolated test for this. I found the issue with ASan
while testing a large project. I'm working on a bot that does this.

llvm-svn: 275516

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[llvm-cov] Clean up an awkward capture-by-reference (NFC)

Writing `for (StringRef &SourceFile : ...)` is strange to begin with.
Subsequently capturing "SourceFile" by reference is even stranger. Jus

[llvm-cov] Clean up an awkward capture-by-reference (NFC)

Writing `for (StringRef &SourceFile : ...)` is strange to begin with.
Subsequently capturing "SourceFile" by reference is even stranger. Just
copy the StringRef, since that's cheap to do.

llvm-svn: 275515

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[Coverage] Mark a few more methods const (NFC)

llvm-svn: 275514

[llvm-cov] Use a thread pool to speed up report generation (NFC)

It's safe to print out source coverage views using multiple threads when
using the -output-dir mode of the `llvm-cov show` sub-comman

[llvm-cov] Use a thread pool to speed up report generation (NFC)

It's safe to print out source coverage views using multiple threads when
using the -output-dir mode of the `llvm-cov show` sub-command.

While testing this on my development machine, I observed that the speed
up is roughly linear with the number of available cores. Avg. time for
`llvm-cov show ./llvm-as -show-line-counts-or-regions`:

1 thread: 7.79s user 0.33s system 98% cpu 8.228 total
4 threads: 7.82s user 0.34s system 283% cpu 2.880 total

llvm-svn: 275321

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[llvm-cov] Add support for creating html reports

Based on a patch by Harlan Haskins!

Differential Revision: http://reviews.llvm.org/D18278

llvm-svn: 274688

[llvm-cov] Minor cleanups to prepare for the html format patch

- Add renderView{Header,Footer}, renderLineSuffix, and hasSubViews to
support creating tables with nested views.

- Move the 'Format'

[llvm-cov] Minor cleanups to prepare for the html format patch

- Add renderView{Header,Footer}, renderLineSuffix, and hasSubViews to
support creating tables with nested views.

- Move the 'Format' cl::opt to make it easier to extend.

- Just create one function view file, instead of overwriting the same
file for every new function. Add a regression test for this.

llvm-svn: 274086

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[llvm-cov] Create an index of reports in -output-dir mode

This index lists the reports available in the 'coverage' sub-directory.
This will help navigate coverage output from large projects.

This c

[llvm-cov] Create an index of reports in -output-dir mode

This index lists the reports available in the 'coverage' sub-directory.
This will help navigate coverage output from large projects.

This commit factors the file creation code out of SourceCoverageView and
into CoveragePrinter.

llvm-svn: 274029

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[llvm-cov] Minor cleanups (NFC)

- Test the '-o' alias for -output-dir.
- Use a helper method in a conditional.
- Add a period.

llvm-svn: 274028

[llvm-cov] Avoid copying file paths multiple times (NFC)

llvm-svn: 274027

[llvm-cov] Rename ShowFormat to Format (NFC)

This makes it a bit more generic, in case we want to emit summary
reports in different formats in the future.

llvm-svn: 274026

[llvm-cov] Simplify; NFC

llvm-svn: 273988

Reapply "[llvm-cov] Add an -output-dir option for the show sub-command""

Passing -output-dir path/to/dir to llvm-cov show creates path/to/dir if
it doesn't already exist, and prints reports into tha

Reapply "[llvm-cov] Add an -output-dir option for the show sub-command""

Passing -output-dir path/to/dir to llvm-cov show creates path/to/dir if
it doesn't already exist, and prints reports into that directory.

In function view mode, all views are written into
path/to/dir/functions.$EXTENSION. In file view mode, all views are
written into path/to/dir/coverage/$PATH.$EXTENSION.

Changes since the initial commit:

- Avoid accidentally closing stdout twice.

llvm-svn: 273985

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Revert "[llvm-cov] Add an -output-dir option for the show sub-command"

This reverts commit r273971. test/profile/instrprof-visibility.cpp is
failing because of an uncaught error in SafelyCloseFileDe

Revert "[llvm-cov] Add an -output-dir option for the show sub-command"

This reverts commit r273971. test/profile/instrprof-visibility.cpp is
failing because of an uncaught error in SafelyCloseFileDescriptor.

llvm-svn: 273978

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[llvm-cov] Add an -output-dir option for the show sub-command

Passing -output-dir path/to/dir to llvm-cov show creates path/to/dir if
it doesn't already exist, and prints reports into that directory

[llvm-cov] Add an -output-dir option for the show sub-command

Passing -output-dir path/to/dir to llvm-cov show creates path/to/dir if
it doesn't already exist, and prints reports into that directory.

In function view mode, all views are written into
path/to/dir/functions.$EXTENSION. In file view mode, all views are
written into path/to/dir/coverage/$PATH.$EXTENSION.

llvm-svn: 273971

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