This removes the need to pass a starting and ending line when creating
a SourceCoverageView, since these are easy to determine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217746 91177308-0d34-0410-b5e6-96231b3b80d8
A single function in SourceCoverageDataManager was the only user of
some of the comparisons in CounterMappingRegion, and at this point we
know that only one file is relevant. This lets us use slightly simpler
logic directly in the client.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217745 91177308-0d34-0410-b5e6-96231b3b80d8
The raw profiles that are generated in compiler-rt always add padding
so that each profile is aligned, so we can simply treat files that
don't have this property as malformed.
Caught by Alexey's new ubsan bot. Thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217708 91177308-0d34-0410-b5e6-96231b3b80d8
This fixes a call to sys::fs::equivalent that should've been to
CodeCoverageTool::equivalentFiles, which lets us restore the test of
r217476 that was removed in r217478.
This reverts r217478, but the test works this time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217646 91177308-0d34-0410-b5e6-96231b3b80d8
It appears that the -filename-equivalence option for testing llvm-cov
doesn't work correctly with -show-expansions. I'm reverting this test
to get the bots green while I look into fixing that.
This partially reverts r217476
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217478 91177308-0d34-0410-b5e6-96231b3b80d8
llvm-cov had a SourceRange type that was nearly identical to a
CountedRegion except that it shaved off a couple of fields. There
aren't likely to be enough of these for the minor memory savings to be
worth the extra complexity here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217417 91177308-0d34-0410-b5e6-96231b3b80d8
This name was too similar to CoverageMappingRegion, and the type
really belongs in the coverage library anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217416 91177308-0d34-0410-b5e6-96231b3b80d8
FunctionCoverageMapping::PrettyName was from a version of the tool
during review, and isn't actually used currently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217398 91177308-0d34-0410-b5e6-96231b3b80d8
Type::dump() doesn't print a newline, which makes for a poor
experience in a debugger. This looks like it was an ommission
considering Value::dump() two lines above, so I've changed Type to add
a newline as well.
Of the two in-tree callers, one added a newline anyway, and I've
updated the other one to use Type::print instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215421 91177308-0d34-0410-b5e6-96231b3b80d8
Currently FileCheck errors out on empty input. This is usually the
right thing to do, but makes testing things like "this command does
not emit some error message" hard to test. This usually leads to
people using "command 2>&1 | count 0" instead, and then the bots that
use guard malloc fail a few hours later.
By adding a flag to FileCheck that allows empty inputs, we can make
tests that consist entirely of "CHECK-NOT" lines feasible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215127 91177308-0d34-0410-b5e6-96231b3b80d8
mach-o doesn't like sections without segments, and elf is perfectly
happy with commas in section names, so use a Darwin-like section name.
Suggestion by Eric Christopher.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215052 91177308-0d34-0410-b5e6-96231b3b80d8
This comment was referring to the DiagnosticSeverity with RS_
prefixes, but they're actually DS_. I've also modernized the comment
style since I was changing it anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214787 91177308-0d34-0410-b5e6-96231b3b80d8
path::const_iterator claims that it's a bidirectional iterator, but it
doesn't satisfy all of the contracts for a bidirectional iterator.
For example, n3376 24.2.5 p6 says "If a and b are both dereferenceable,
then a == b if and only if *a and *b are bound to the same object",
but this doesn't work with how we stash and recreate Components.
This means that our use of reverse_iterator on this type is invalid
and leads to many of the valgrind errors we're hitting, as explained
by Tilmann Scheller here:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20140728/228654.html
Instead, we admit that path::const_iterator is only an input_iterator,
and implement a second input_iterator for path::reverse_iterator (by
changing const_iterator::operator-- to reverse_iterator::operator++).
All of the uses of this just traverse once over the path in one
direction or the other anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214737 91177308-0d34-0410-b5e6-96231b3b80d8
This updates the instrumentation based profiling format so that when
we have multiple functions with the same name (but different function
hashes) we keep all of them instead of rejecting the later ones.
There are a number of scenarios where this can come up where it's more
useful to keep multiple function profiles:
* Name collisions in unrelated libraries that are profiled together.
* Multiple "main" functions from multiple tools built against a common
library.
* Combining profiles from different build configurations (ie, asserts
and no-asserts)
The profile format now stores the number of counters between the hash
and the counts themselves, so that multiple sets of counts can be
stored. Since this is backwards incompatible, I've bumped the format
version and added some trivial logic to skip this when reading the old
format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214585 91177308-0d34-0410-b5e6-96231b3b80d8
In some places we've been using different suffixes for the different
file formats involved in instrprof, but in others we've just
ambiguously used .profdata. Update the test files to indicate the
types of file more obviously.
No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214357 91177308-0d34-0410-b5e6-96231b3b80d8
This moves some tests around to make it clearer what's being tested,
and adds very rudimentary comment syntax to the text input format to
make specifying this kind of test a little bit simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214235 91177308-0d34-0410-b5e6-96231b3b80d8
This re-enables some #if 0'd code (since 2010) in the Path unittests
and makes at least a weak effort at testing sys::path's rbegin/rend.
This change was inspired by some test failures near uses of rbegin and
rend here:
http://lab.llvm.org:8011/builders/clang-x86_64-linux-vg/builds/3209
The "valgrind was whining" comment looked promising in terms of a
simpler to debug case of the same errors. However, it appears that the
valgrind complaints the comment was referring to are distinct from the
ones in the frontend, since this updated test isn't complaining for me
under valgrind.
In any case, the disabled tests weren't helping anybody.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213125 91177308-0d34-0410-b5e6-96231b3b80d8
Until now, attempting to create an alias of a required option would
complain if the user supplied the alias, because the required option
didn't have a value. Similarly, if you said the alias was required,
then using the base option would complain that the alias wasn't
supplied. Lastly, if you put required on both, *neither* option would
work.
By changning alias to overload addOccurrence and setting cl::Required
on the original option, we can get this to behave in a more useful
way. I've also added a test and updated a user that was getting this
wrong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212986 91177308-0d34-0410-b5e6-96231b3b80d8
Make llvm-cov compatible with gcov for cases where multiple files are
specified on the command line. That is, loop over each one and report
coverage, and report errors on stderr only rather than via return
code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211959 91177308-0d34-0410-b5e6-96231b3b80d8
Mimic r116632 in passing LLVM_VERSION_INFO from the Makefile build
system to the build. This improves the -version output of tools that
use llvm::cl under the configure+make system.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211091 91177308-0d34-0410-b5e6-96231b3b80d8
Late last year r191835 removed a largely unmaintained legacy PGO
infrastructure, but some of the docs were missed. Since these docs are
for things that don't actually exist anymore, they should be removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210165 91177308-0d34-0410-b5e6-96231b3b80d8
Add an __lldb_init_module function so that importing the
lldbDataFormatters script automatically adds the formatters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209712 91177308-0d34-0410-b5e6-96231b3b80d8
ScalarEvolution::isKnownPredicate() can wrongly reduce a comparison
when both the LHS and RHS are SCEVAddRecExprs. This checks that both
LHS and RHS are guarded in the case when both are SCEVAddRecExprs.
The test case is against indvars because I could not find a way to
directly test SCEV.
Patch by Sanjay Patel!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209487 91177308-0d34-0410-b5e6-96231b3b80d8
Allow multiple raw profiles to coexist in a single .profraw file,
given the following conditions:
- Zero padding at the end of or between profiles will be skipped.
- Each profile must start with a valid header.
- Mixing endianness or pointer sizes in concatenated profiles files is
not allowed.
This is needed to handle cases where a program's shared libraries are
profiled as well as the main executable itself, as we'll need to emit
each executable's counters. Combining the tables in the runtime would
be expensive for the instrumented program.
rdar://16918688
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208938 91177308-0d34-0410-b5e6-96231b3b80d8
This tightens up r208351 to ensure that a store is fed with the
correct value.
Thanks to Quentin Colombet for spotting this!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208368 91177308-0d34-0410-b5e6-96231b3b80d8
This is a followup to r208171, where a call to make_unique was
disambiguated for MSVC. Disambiguate two more calls, and remove the
comment about it since this is what we do everywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208219 91177308-0d34-0410-b5e6-96231b3b80d8
If the source files referenced by a gcno file are missing, gcov
outputs a coverage file where every line is simply /*EOF*/. This also
occurs for lines in the coverage that are past the end of a file that
is found.
This change mimics gcov.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208149 91177308-0d34-0410-b5e6-96231b3b80d8
In gcov, there's a -n/--no-output option, which disables the writing
of any .gcov files, so that it emits only the summary info on stdout.
This implements the same behaviour in llvm-cov.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208148 91177308-0d34-0410-b5e6-96231b3b80d8
Reading line tables in llvm-cov was pretty broken, but would happen to
work as long as no line in the table was 0. It's not clear to me
whether a line of zero *should* show up in these tables, but deciding
to read a string in the middle of the line table is certainly the
wrong thing to do if it does.
I've also added some comments, as trying to figure out what this block
of code was doing was fairly unpleasant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207866 91177308-0d34-0410-b5e6-96231b3b80d8
GCOV provides an option to prepend output file names with the source
file name, to disambiguate between covered data that's included from
multiple sources. Add a flag to llvm-cov that does the same.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207035 91177308-0d34-0410-b5e6-96231b3b80d8
We're currently copying CounterData from InstrProfWriter into the
OnDiskHashTable, even though we don't need to, and then carelessly
leaking those copies. A const pointer is much better here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207009 91177308-0d34-0410-b5e6-96231b3b80d8
We fseek on our output file in llvm-profdata, which errors on some
systems. Avoid getting into the situation by writing to /dev/null
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206670 91177308-0d34-0410-b5e6-96231b3b80d8
This adds support for an indexed instrumentation based profiling
format, which is just a small header and an on disk hash table. This
format will be used by clang's -fprofile-instr-use= for PGO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206656 91177308-0d34-0410-b5e6-96231b3b80d8
This changes the on-disk hash to get the type to use for offsets from
the Info type, so that clients can be more flexible with the size of
table they support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206643 91177308-0d34-0410-b5e6-96231b3b80d8
This changes the on-disk hash to get the size of a hash value from the
Info type, so that clients can be more flexible with the types of hash
they use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206642 91177308-0d34-0410-b5e6-96231b3b80d8
This introduces clang's Basic/OnDiskHashTable.h into llvm as
Support/OnDiskHashTable.h. I've taken the opportunity to add doxygen
comments and run the file through clang-format, but other than the
namespace changing from clang:: to llvm:: the API is identical.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206438 91177308-0d34-0410-b5e6-96231b3b80d8
This adds a new header, EndianStream.h, which supplies an adaptor for
writing endian specific data to a raw_ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205032 91177308-0d34-0410-b5e6-96231b3b80d8
It seems that gcov, when faced with a string that is apparently zero
length, just keeps reading words until it finds a length it likes
better. I'm not really sure why this is, but it's simple enough to
make llvm-cov follow suit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204881 91177308-0d34-0410-b5e6-96231b3b80d8
llvm-cov tests are sensitive to line number changes, so putting this
at the end will limit churn when we fix the XFAIL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204871 91177308-0d34-0410-b5e6-96231b3b80d8
Functions may in an instrumented binary but not in the original source
when they're inserted by the compiler or the runtime. These functions
aren't meaningful to the user, so teach llvm-cov to skip over them
instead of crashing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204863 91177308-0d34-0410-b5e6-96231b3b80d8
This adds a function to Endian.h that reads from and updates a pointer
into a buffer with endian specific data. This is more convenient for
stream-like reading of data than endian::read.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204693 91177308-0d34-0410-b5e6-96231b3b80d8
Some text shows up on stderr when using guard malloc, and this test
was trying to treat that as input to llvm-profdata show. There's no
reason to pipe stderr into show at all here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204549 91177308-0d34-0410-b5e6-96231b3b80d8
This isn't a format we'll want to write out in practice, but moving it
to the writer library simplifies llvm-profdata and isolates it from
further changes to the format.
This also allows us to update the tests to not rely on the text output
format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204489 91177308-0d34-0410-b5e6-96231b3b80d8
This introduces the ProfileData library and updates llvm-profdata to
use this library for reading profiles. InstrProfReader is an abstract
base class that will be subclassed for both the raw instrprof data
from compiler-rt and the efficient instrprof format that will be used
for PGO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204482 91177308-0d34-0410-b5e6-96231b3b80d8
Since our error_category is based on the std one, we should have the
same visibility for the constructor. This also allows us to avoid
using the _do_message implementation detail in our own categories.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203998 91177308-0d34-0410-b5e6-96231b3b80d8
Chandler voiced some concern with checking this in without some
discussion first. Reverting for now.
This reverts r203703, r203704, r203708, and 203709.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203723 91177308-0d34-0410-b5e6-96231b3b80d8
This replaces the llvm-profdata tool with a version that uses the
recently introduced Profile library. The new tool has the ability to
generate and summarize profdata files as well as merging them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203704 91177308-0d34-0410-b5e6-96231b3b80d8
This provides a library to work with the instrumentation based
profiling format that is used by clang's -fprofile-instr-* options and
by the llvm-profdata tool. This is a binary format, rather than the
textual one that's currently in use.
The tests are in the subsequent commits that use this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203703 91177308-0d34-0410-b5e6-96231b3b80d8
Extend the error message generated by the Verifier when an intrinsic
name does not match the expected mangling to include the expected
name. Simplifies debugging.
Patch by Philip Reames!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203490 91177308-0d34-0410-b5e6-96231b3b80d8
Tools that use the CommandLine library currently exit with an error
when invoked with -version or -help. This is unusual and non-standard,
so we'll fix them to exit successfully instead.
I don't expect that anyone relies on the current behaviour, so this
should be a fairly safe change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202530 91177308-0d34-0410-b5e6-96231b3b80d8
In gcov, the -o flag can accept either a directory or a file name.
When given a directory, the gcda and gcno files are expected to be in
that directory. When given a file, the gcda and gcno files are
expected to be named based on the stem of that file. Non-existent
paths are treated as files.
This implements compatible behaviour.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201555 91177308-0d34-0410-b5e6-96231b3b80d8
Until now, when a path in a gcno file included a directory, we would
emit our .gcov file in that directory, whereas gcov always emits the
file in the current directory. In doing so, this implements gcov's
strange name-mangling -p flag, which is needed to avoid clobbering
files when two with the same name exist in different directories.
The path mangling is a bit ugly and only handles unix-like paths, but
it's simple, and it doesn't make any guesses as to how it should
behave outside of what gcov documents. If we decide this should be
cross platform later, we can consider the compatibility implications
then.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200754 91177308-0d34-0410-b5e6-96231b3b80d8
When gcov is run without gcda data, it acts as if the counts are all
zero and labels the file as - to indicate that there was no data. We
should do the same.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200740 91177308-0d34-0410-b5e6-96231b3b80d8
This is a bit imperfect, as these options don't show up in the help as
is and single dash variants are accepted, which differs from gcov.
Unfortunately, this seems to be as good as it gets with the cl::opt
machinery, so it'll do as an incremental step.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200419 91177308-0d34-0410-b5e6-96231b3b80d8
Justin Bogner