Avoid int to string conversion in Twine or raw_ostream contexts.

Some output changes from uppercase hex to lowercase hex, no other functionality change intended.

llvm-svn: 321526

[llvm-cov] Add an option for "export" command to emit only file summary data.

Summary:
That allows to get the same data as produced by "llvm-cov report",
but in JSON format, which is better for furt

[llvm-cov] Add an option for "export" command to emit only file summary data.

Summary:
That allows to get the same data as produced by "llvm-cov report",
but in JSON format, which is better for further processing by end users.

Reviewers: vsk

Reviewed By: vsk

Differential Revision: https://reviews.llvm.org/D41085

llvm-svn: 320435

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[llvm-cov] Generate "report" for given source paths if sources are specified.

Summary:
Documentation says that user can specify sources for both "show" and
"report" commands. "Show" command respects

[llvm-cov] Generate "report" for given source paths if sources are specified.

Summary:
Documentation says that user can specify sources for both "show" and
"report" commands. "Show" command respects specified sources, but "report" does
not. It is useful to have both "show" and "report" generated for specified
sources. Also added tests to for both commands with sources specified.

Reviewers: vsk, kcc

Reviewed By: vsk

Differential Revision: https://reviews.llvm.org/D38860

llvm-svn: 315685

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[llvm-cov] Fix showing title when filtering and not outputting to a directory

Differential Revision: https://reviews.llvm.org/D38507

llvm-svn: 314885

[llvm-cov] Create directory structure when filtering using -name*= options

Before this change using any of the -name*= command line options with an output
directory would result in a single file (fu

[llvm-cov] Create directory structure when filtering using -name*= options

Before this change using any of the -name*= command line options with an output
directory would result in a single file (functions.txt/functions.html)
containing the coverage for those specific functions. Now you get the same
directory structure as when not using any -name*= options.

Differential Revision: https://reviews.llvm.org/D38280

llvm-svn: 314396

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Revert "[llvm-cov] Create directory structure when filtering using -name*= options"

Test failures.

llvm-svn: 314314

[llvm-cov] Create directory structure when filtering using -name*= options

Before this change using any of the -name*= command line options with an output
directory would result in a single file (fu

[llvm-cov] Create directory structure when filtering using -name*= options

Before this change using any of the -name*= command line options with an output
directory would result in a single file (functions.txt/functions.html)
containing the coverage for those specific functions. Now you get the same
directory structure as when not using any -name*= options.

Differential Revision: https://reviews.llvm.org/D38280

llvm-svn: 314310

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[llvm-cov] Warn if -show-functions is used without query files

llvm-cov's report mode does not print any output when -show-functions is
specified and no source files are specified. This can be surpr

[llvm-cov] Warn if -show-functions is used without query files

llvm-cov's report mode does not print any output when -show-functions is
specified and no source files are specified. This can be surprising, so
the tool should at least print out an error message when this happens.

rdar://problem/34636859

llvm-svn: 314175

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[Support] Rename tool_output_file to ToolOutputFile, NFC

This class isn't similar to anything from the STL, so it shouldn't use
the STL naming conventions.

llvm-svn: 314050

[llvm-cov] Improve error messaging for function mismatches

Passing "-dump" to llvm-cov will now print more detailed information
about function hash and counter mismatches. This should make it easier

[llvm-cov] Improve error messaging for function mismatches

Passing "-dump" to llvm-cov will now print more detailed information
about function hash and counter mismatches. This should make it easier
to debug *.profdata files which contain incorrect records, and to debug
other scenarios where coverage goes missing due to mismatch issues.

llvm-svn: 313853

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[llvm-cov] Make report metrics agree with line exec counts, fixes PR34615

Use the same logic as the line-oriented coverage view to determine the
number of covered lines in a function.

Fixes llvm.or

[llvm-cov] Make report metrics agree with line exec counts, fixes PR34615

Use the same logic as the line-oriented coverage view to determine the
number of covered lines in a function.

Fixes llvm.org/PR34615.

llvm-svn: 313604

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Convenience/safety fix for llvm::sys::Execute(And|No)Wait

Summary:
Change the type of the Redirects parameter of llvm::sys::ExecuteAndWait,
ExecuteNoWait and other APIs that wrap them from `const St

Convenience/safety fix for llvm::sys::Execute(And|No)Wait

Summary:
Change the type of the Redirects parameter of llvm::sys::ExecuteAndWait,
ExecuteNoWait and other APIs that wrap them from `const StringRef **` to
`ArrayRef<Optional<StringRef>>`, which is safer and simplifies the use of these
APIs (no more local StringRef variables just to get a pointer to).

Corresponding clang changes will be posted as a separate patch.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: vsk, llvm-commits

Differential Revision: https://reviews.llvm.org/D37563

llvm-svn: 313155

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[llvm-cov] Allow hiding instantiation/region coverage from summary tables

Region coverage is difficult to explain without going deep into how
coverage is implemented. Instantiation coverage is easie

[llvm-cov] Allow hiding instantiation/region coverage from summary tables

Region coverage is difficult to explain without going deep into how
coverage is implemented. Instantiation coverage is easier to explain,
but probably not useful in most cases (templates don't exist in C, and
most C++ code contains relatively few templates).

This patch adds the options "-show-region-summary" and
"-show-instantiation-summary" to allow hiding those columns.
"-show-instantiation-summary" is turned off by default.

llvm-svn: 312969

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[llvm-cov] Fix a lifetime issue

This fixes an issue where a std::string was moved to a constructor
which accepted a StringRef.

llvm-svn: 312816

[llvm-cov] Unify region marker placement between text/html modes

Make sure that the text and html emitters always emit the same set of
region markers, and avoid emitting redundant markers for line s

[llvm-cov] Unify region marker placement between text/html modes

Make sure that the text and html emitters always emit the same set of
region markers, and avoid emitting redundant markers for line segments
which don't end on the line they start on.

This is related to D35925, and depends on D36014

Differential Revision: https://reviews.llvm.org/D36020

llvm-svn: 312813

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[llvm-cov] Read in function names for filtering from a text file.

Summary: Add a -name-whitelist option, which behaves in the same way as -name, but it reads in multiple function names from the give

[llvm-cov] Read in function names for filtering from a text file.

Summary: Add a -name-whitelist option, which behaves in the same way as -name, but it reads in multiple function names from the given input file(s).

Reviewers: vsk

Reviewed By: vsk

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37111

llvm-svn: 312227

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[llvm-cov] Add an option which maps the location of source directories on another machine to your local copies

Summary:
This patch adds the -path-equivalence option (example: llvm-cov show -path-equ

[llvm-cov] Add an option which maps the location of source directories on another machine to your local copies

Summary:
This patch adds the -path-equivalence option (example: llvm-cov show -path-equivalence=/origin/path,/local/path) which maps the source code path from one machine to another when using `llvm-cov show`. This is similar to the -filename-equivalence option, but doesn't require you to specify all the source files on the command line.

This allows you to generate the coverage data on one machine (e.g. in a CI system), and then use llvm-cov on another machine where you have the same code base on a different path.

Reviewers: vsk

Reviewed By: vsk

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D36391

llvm-svn: 310827

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[llvm-cov] NFC: make_unique-ify two allocations

llvm-svn: 310011

[Coverage] Add an API to retrive all instantiations of a function (NFC)

The CoverageMapping::getInstantiations() API retrieved all function
records corresponding to functions with more than one inst

[Coverage] Add an API to retrive all instantiations of a function (NFC)

The CoverageMapping::getInstantiations() API retrieved all function
records corresponding to functions with more than one instantiation (e.g
template functions with multiple specializations). However, there was no
simple way to determine *which* function a given record was an
instantiation of. This was an oversight, since it's useful to aggregate
coverage information over all instantiations of a function.

llvm-cov works around this by building a mapping of source locations to
instantiation sets, but this duplicates logic that libCoverage already
has (see FunctionInstantiationSetCollector).

This change adds a new API, CoverageMapping::getInstantiationGroups(),
which returns a list of InstantiationGroups. A group contains records
for each instantiation of some particular function, and also provides
utilities to get the total execution count within the group, the source
location of the common definition, etc.

This lets removes some hacky logic in llvm-cov by reusing
FunctionInstantiationSetCollector and makes the CoverageMapping API
friendlier for other clients.

llvm-svn: 309904

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[llvm-cov] Respect the value of the -show-instantiations option

Make `-show-instantiations=false` actually skip displaying instantiation
sub-views, instead of simply ignoring the option.

llvm-svn:

[llvm-cov] Respect the value of the -show-instantiations option

Make `-show-instantiations=false` actually skip displaying instantiation
sub-views, instead of simply ignoring the option.

llvm-svn: 309903

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[llvm-cov] Allow specifying distinct architectures for each loaded binary

The coverage tool needs to know which slice to look at when it's handed
a universal binary. Some projects need to look at ag

[llvm-cov] Allow specifying distinct architectures for each loaded binary

The coverage tool needs to know which slice to look at when it's handed
a universal binary. Some projects need to look at aggregate coverage
reports for a variety of slices in different binaries: this patch adds
support for these kinds of projects to llvm-cov.

rdar://problem/33579007

llvm-svn: 309747

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[llvm-cov] Add a cl::opt to control the number of threads

When an output directory is specified, llvm-cov spawns some threads to
speed up the process of writing out file reports. Add an option which

[llvm-cov] Add a cl::opt to control the number of threads

When an output directory is specified, llvm-cov spawns some threads to
speed up the process of writing out file reports. Add an option which
allows users to control how many threads llvm-cov uses.

A CommandGuide.rst update + test is included.

llvm-svn: 307609

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[llvm-cov] Error-out when an unsupported format is used (PR32087)

llvm-svn: 296487

[llvm-cov] Respect Windows line endings when parsing demangled symbols.

Differential Revision: https://reviews.llvm.org/D30096

llvm-svn: 295605

[llvm-cov] Don't show function summaries when filtering by filename (fixes PR31395)

llvm-svn: 294137