This patch allows all forms of values for options to be used at the end
of a group. With the fix, it is possible to follow the way GNU binutils
tools handle grouping options better. For example, the -j option can be
used with objdump in any of the following ways:
$ objdump -d -j .text a.o
$ objdump -d -j.text a.o
$ objdump -dj .text a.o
$ objdump -dj.text a.o
Differential Revision: https://reviews.llvm.org/D58711
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@355185 91177308-0d34-0410-b5e6-96231b3b80d8
If an option, which requires a value, has a `cl::Grouping` formatting
modifier, it works well as far as it is used at the end of a group,
or as a separate argument. However, if the option appears accidentally
in the middle of a group, the program just crashes. This patch prints
an error message instead.
Differential Revision: https://reviews.llvm.org/D58499
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@355184 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Add support for options that always prefix their value, giving an error
if the value is in the next argument or if the option is given a value
assignment (ie. opt=val). This is the desired behavior for the -D option
of FileCheck for instance.
Copyright:
- Linaro (changes in version 2 of revision D55940)
- GraphCore (changes in later versions and introduced when creating
D56549)
Reviewers: jdenny
Subscribers: llvm-commits, probinson, kristina, hiraditya,
JonChesterfield
Differential Revision: https://reviews.llvm.org/D56549
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353172 91177308-0d34-0410-b5e6-96231b3b80d8
In order to make an option value truly optional, both the ValueOptional
attribute and an empty-named value are required. Prior to this change,
this empty-named value appears in the command-line help text:
-some-option - some help text
=v1 - description 1
=v2 - description 2
= -
This change improves the help text for these sort of options in a number
of ways:
1) ValueOptional options with an empty-named value now print their help
text twice: both without and then with '=<value>' after the name. The
latter version then lists the allowed values after it.
2) Empty-named values with no help text in ValueOptional options are not
listed in the permitted values.
-some-option - some help text
-some-option=<value> - some help text
=v1 - description 1
=v2 - description 2
3) Otherwise empty-named options are printed as =<empty> rather than
simply '='.
4) Option values without help text do not have the '-' separator
printed.
-some-option=<value> - some help text
=v1 - description 1
=v2
=<empty> - description
It also tweaks the llvm-symbolizer -functions help text to not print a
trailing ':' as that looks bad combined with 1) above.
This is mostly a reland of r353048 which in turn was a reland of
r352750.
Reviewed by: ruiu, thopre, mstorsjo
Differential Revision: https://reviews.llvm.org/D57030
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353053 91177308-0d34-0410-b5e6-96231b3b80d8
In order to make an option value truly optional, both the ValueOptional
attribute and an empty-named value are required. Prior to this change,
this empty-named value appears in the command-line help text:
-some-option - some help text
=v1 - description 1
=v2 - description 2
= -
This change improves the help text for these sort of options in a number
of ways:
1) ValueOptional options with an empty-named value now print their help
text twice: both without and then with '=<value>' after the name. The
latter version then lists the allowed values after it.
2) Empty-named values with no help text in ValueOptional options are not
listed in the permitted values.
-some-option - some help text
-some-option=<value> - some help text
=v1 - description 1
=v2 - description 2
3) Otherwise empty-named options are printed as =<empty> rather than
simply '='.
4) Option values without help text do not have the '-' separator
printed.
-some-option=<value> - some help text
=v1 - description 1
=v2
=<empty> - description
It also tweaks the llvm-symbolizer -functions help text to not print a
trailing ':' as that looks bad combined with 1) above.
This is mostly a reland of r352750.
Reviewed by: ruiu, thopre, mstorsjo
Differential Revision: https://reviews.llvm.org/D57030
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353048 91177308-0d34-0410-b5e6-96231b3b80d8
In order to make an option value truly optional, both the ValueOptional
and an empty-named value are required. This empty-named value appears in
the command-line help text, which is not ideal.
This change improves the help text for these sort of options in a number
of ways:
1) ValueOptional options with an empty-named value now print their help
text twice: both without and then with '=<value>' after the name. The
latter version then lists the allowed values after it.
2) Empty-named values with no help text in ValueOptional options are not
listed in the permitted values.
3) Otherwise empty-named options are printed as =<empty> rather than
simply '='.
4) Option values without help text do not have the '-' separator
printed.
It also tweaks the llvm-symbolizer -functions help text to not print a
trailing ':' as that looks bad combined with 1) above.
Reviewed by: thopre, ruiu
Differential Revision: https://reviews.llvm.org/D57030
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@352750 91177308-0d34-0410-b5e6-96231b3b80d8
to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Add support for options that always prefix their value, giving an error
if the value is in the next argument or if the option is given a value
assignment (ie. opt=val). This is the desired behavior for the -D option
of FileCheck for instance.
Copyright:
- Linaro (changes in version 2 of revision D55940)
- GraphCore (changes in later versions and introduced when creating
D56549)
Reviewers: jdenny
Subscribers: llvm-commits, probinson, kristina, hiraditya,
JonChesterfield
Differential Revision: https://reviews.llvm.org/D56549
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351038 91177308-0d34-0410-b5e6-96231b3b80d8
This feature makes it easy to tune FileCheck diagnostic output when
running the test suite via ninja, a bot, or an IDE. For example:
```
$ FILECHECK_OPTS='-color -v -dump-input-on-failure' \
LIT_FILTER='OpenMP/for_codegen.cpp' ninja check-clang \
| less -R
```
Reviewed By: probinson
Differential Revision: https://reviews.llvm.org/D53517
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346272 91177308-0d34-0410-b5e6-96231b3b80d8
When reading directives from a .drectve section, the directives are
tokenized as a normal windows command line. However in these cases,
link.exe allows the directives to be separated by null bytes, not only by
spaces.
A test case for this change will be added in the lld repo.
Differential Revision: https://reviews.llvm.org/D52014
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@342204 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
bugpoint has several options specified as `PositionalEatArgs` to pass
options through to the underlying tool, e.g. `-tool-args`. The `-help`
message suggests the usage is: `-tool-args=<string>`. However, this is
misleading, because that's not how these arguments work. Rather than taking
a value, the option consumes all positional arguments until the next
recognized option (or all arguments if `--` is specified at some point).
To make this slightly clearer, instead print the help as:
```
-tool-args <string>... - <tool arguments>...
```
Additionally, add an error if the user attempts to use a `PositionalEatArgs`
argument with a value, instead of silently ignoring it. Example:
```
./bin/bugpoint -tool-args=-mpcu=skylake-avx512
bugpoint: for the -tool-args option: This argument does not take a value.
Instead, it consumes any positional arguments until the next recognized option.
```
Reviewed By: aprantl
Differential Revision: https://reviews.llvm.org/D46787
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332311 91177308-0d34-0410-b5e6-96231b3b80d8
The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM
- Manual change to APInt
- Manually chage DOCS as regex doesn't match it.
In the transition period the DEBUG() macro is still present and aliased
to the LLVM_DEBUG() one.
Differential Revision: https://reviews.llvm.org/D43624
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332240 91177308-0d34-0410-b5e6-96231b3b80d8
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.
Patch produced by
for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done
Differential Revision: https://reviews.llvm.org/D46290
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@331272 91177308-0d34-0410-b5e6-96231b3b80d8
The original change was made based on a misunderstanding that
-DCMAKE_BUILD_TYPE=RelWithDebugInfo would produce the same executable
as -DCMAKE_BUILD_TYPE=Release modulo debug info. Turned out that's not
true -- it at least disables some optimizations such as function inlining.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@323161 91177308-0d34-0410-b5e6-96231b3b80d8
Patch by Takuto Ikuta.
In chromium's component build, there are many directive sections and
commandline parsing takes much time.
This patch is for speed up of lld in RelWithDebInfo build by forcing
inline heavily called isWhitespace function.
10 times link perf stats of blink_core.dll changed like below.
master:
TotalSeconds: 9.8764878
TotalSeconds: 10.1455242
TotalSeconds: 10.075279
TotalSeconds: 10.3397347
TotalSeconds: 9.8361665
TotalSeconds: 9.9544441
TotalSeconds: 9.8960686
TotalSeconds: 9.8877865
TotalSeconds: 10.0551879
TotalSeconds: 10.0492254
Avg: 10.01159047
with this patch:
TotalSeconds: 8.8696762
TotalSeconds: 9.1021585
TotalSeconds: 9.0233893
TotalSeconds: 9.1886175
TotalSeconds: 9.156954
TotalSeconds: 9.0978564
TotalSeconds: 9.1316824
TotalSeconds: 8.8354606
TotalSeconds: 9.2549431
TotalSeconds: 9.4473085
Avg: 9.11080465
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@322595 91177308-0d34-0410-b5e6-96231b3b80d8
Configuration file is read as a response file in which file names in
the nested constructs `@file` are resolved relative to the directory
where the including file resides. Lines in which the first non-whitespace
character is '#' are considered as comments and are skipped. Trailing
backslashes are used to concatenate lines in the same way as they
are used in shell scripts.
Differential Revision: https://reviews.llvm.org/D24926
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321586 91177308-0d34-0410-b5e6-96231b3b80d8
Configuration file is read as a response file in which file names in
the nested constructs `@file` are resolved relative to the directory
where the including file resides. Lines in which the first non-whitespace
character is '#' are considered as comments and are skipped. Trailing
backslashes are used to concatenate lines in the same way as they
are used in shell scripts.
Differential Revision: https://reviews.llvm.org/D24926
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321580 91177308-0d34-0410-b5e6-96231b3b80d8
Patcy by Takuto Ikuta.
This patch reduces lld link time of chromium's blink_core.dll in
component build.
Total size of input argument in .directives become nearly 300MB in the
build and calling many strchr and assert becomes bottleneck.
On my desktop machine, 4 times stats of the link time are like below.
Improved around 10%.
This patch
TotalSeconds : 13.4918885
TotalSeconds : 13.9474257
TotalSeconds : 13.4941082
TotalSeconds : 13.6077962
Avg : 13.63530465
master
TotalSeconds : 15.6938531
TotalSeconds : 15.7022508
TotalSeconds : 15.9567202
TotalSeconds : 14.5851505
Avg : 15.48449365
Differential Revision: https://reviews.llvm.org/D41590
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321479 91177308-0d34-0410-b5e6-96231b3b80d8
Most callers were not expecting the exit(0) and trying to exit with a
different value.
This also adds back the call to cl::PrintHelpMessage in llvm-ar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312761 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
The function matches the interface of llvm::to_integer, but as we are
calling out to a C library function, I let it take a Twine argument, so
we can avoid a string copy at least in some cases.
I add a test and replace a couple of existing uses of strtod with this
function.
Reviewers: zturner
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D34518
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306096 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
I would like to add printing of registered targets to clang's version
information. For this to work correctly, the VersionPrinter logic in
CommandLine.cpp should support printing to arbitrary raw_ostreams,
instead of always defaulting to outs().
Add a raw_ostream& parameter to the function pointer type used for
VersionPrinter, and while doing so, introduce a typedef for convenience.
Note that VersionPrinter::print() will still default to using outs(),
the clang part will necessarily go into a separate review.
Reviewers: beanz, chandlerc, dberris, mehdi_amini, zturner
Reviewed By: mehdi_amini
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D33899
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304835 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
VersionPrinter by default outputs information about the Host CPU
and Default target. Printing this information requires linking in
a large amount of data, such as supported target triples as C
strings, which in turn bloats the binary size.
Enable a new CMake option LLVM_VERSION_PRINTER_SHOW_HOST_TARGET_INFO
which controls printing of the host and target info. This allows
the target triple names to be dead-code stripped. This is a nice
win for LLVM clients that wish to minimize their binary size, such
as graphics drivers.
By default this is ON, so there is no change in the default behavior.
Clients who wish to suppress this printing can do so by setting this
option to off via CMake.
A test app on Linux that uses ParseCommandLineOptions() shows a binary
size reduction of 23KB (from 149K to 126K) for a Release build, and 24KB
(from 135K to 111K) in a MinSizeRel build.
Reviewers: klimek, beanz, bogner, chandlerc, compnerd
Reviewed By: compnerd
Patch by pammon (Peter Ammon) !
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D30904
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300630 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
It should return <0, 0, or >0 for less-than, equal, and greater-than like
strcmp() (according to the history, it used to be implemented with
strcmp()) but it actually returned 0, or 1 for not-equal and equal.
Reviewers: qcolombet
Reviewed By: qcolombet
Subscribers: qcolombet, llvm-commits
Differential Revision: https://reviews.llvm.org/D30996
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298844 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Previously, ParseCommandLineOptions returns false and ignores error messages
when IgnoreErrors. It would be useful to also return error messages if users
decide to check parsing result instead of having the program exit on error.
Reviewers: chandlerc, mehdi_amini, rnk
Reviewed By: rnk
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D30893
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@297810 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
We have support for bisection, and bugpoint can reduce testcases
often to a single pass. But that doesn't help reduce it to a single
transform by a single pass. Which debug counting lets us do.
Debug counting lets you instrument a pass so that it only executes a
certain thing (rwhatever you want) after skipping it a certain time of
times, and then only does a certain number of executions before saying
"skip" again.
To make it concrete, for predicateinfo, if i instrument use renaming,
i can make it so it skips renaming the first N uses, renames the next
N, and then skips the rest.
This lets you narrow down a miscompilation to, often, a single
transformation, and then also debug it (by using the same command line
parameters).
Reviewers: chandlerc, davide, mehdi_amini
Subscribers: mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D29998
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295593 91177308-0d34-0410-b5e6-96231b3b80d8
This is used in LDC for custom boolean commandline options, setArgStr
is called with an empty string before using AddLiteralOption.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291406 91177308-0d34-0410-b5e6-96231b3b80d8
Bots are broken and needs to be fixed before having this on by default.
The feature was committed in r289619.
I tried to disable it in r289624 and failed because it was initialized in two places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289626 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Given a flag (-mllvm -reverse-iterate) this patch will enable iteration of SmallPtrSet in reverse order.
The idea is to compile the same source with and without this flag and expect the code to not change.
If there is a difference in codegen then it would mean that the codegen is sensitive to the iteration order of SmallPtrSet.
This is enabled only with LLVM_ENABLE_ABI_BREAKING_CHECKS.
Reviewers: chandlerc, dexonsmith, mehdi_amini
Subscribers: mgorny, emaste, llvm-commits
Differential Revision: https://reviews.llvm.org/D26718
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289619 91177308-0d34-0410-b5e6-96231b3b80d8
If a response file in construct `@file` was specified by relative name,
constructs `@file` nested within it were resolved incorrectly if the
flag RelativeNames in call to ExpandResponseFile was set to true.
This feature is used in configuration files, tests for it are in
respective change (see D24933).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287482 91177308-0d34-0410-b5e6-96231b3b80d8
If a response file included by construct @file itself includes a response file
and that file is specified by relative file name, current behavior is to resolve
the name relative to the current working directory. The change adds additional
flag to ExpandResponseFiles that may be used to resolve nested response file
names relative to including file. With the new mode a set of related response
files may be kept together and reference each other with short position
independent names.
Differential Revision: https://reviews.llvm.org/D24917
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@285675 91177308-0d34-0410-b5e6-96231b3b80d8
subcommands
This commit fixes a bug where the help output doesn't display subcommands when
a tool has less than 3 subcommands.
This change doesn't include a corresponding unittest as there is no viable way
to provide a unittest for it.
Differential Revision: https://reviews.llvm.org/D25463
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283998 91177308-0d34-0410-b5e6-96231b3b80d8
Previously we would print
USAGE: <exe> [subcommand] [options]
Even if no subcommands were present. This changes the output
format to only print "[subcommand]" if there is at least one
subcommand.
Fixes llvm.org/pr30598
Patch by Serge Guelton
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283892 91177308-0d34-0410-b5e6-96231b3b80d8
This should allow users of the library to get a range to iterate through
all the subcommands that are registered to the global parser. This
allows users to define subcommands in libraries that self-register to
have dispatch done at a different stage (like main). It allows for
writing code like the following:
for (auto *S : cl::getRegisteredSubcommands()) {
if (*S) {
// Dispatch on S->getName().
}
}
This change also contains tests that show this usage pattern.
Reviewers: zturner, dblaikie, echristo
Subscribers: llvm-commits, mehdi_amini
Differential Revision: https://reviews.llvm.org/D24489
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283296 91177308-0d34-0410-b5e6-96231b3b80d8
This should allow users of the library to get a range to iterate through
all the subcommands that are registered to the global parser. This
allows users to define subcommands in libraries that self-register to
have dispatch done at a different stage (like main). It allows for
writing code like the following:
for (auto *S : cl::getRegisteredSubcommands()) {
if (*S) {
// Dispatch on S->getName().
}
}
This change also contains tests that show this usage pattern.
Reviewers: zturner, dblaikie, echristo
Subscribers: llvm-commits, mehdi_amini
Differential Revision: https://reviews.llvm.org/D24489
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281290 91177308-0d34-0410-b5e6-96231b3b80d8
If the result of the find is only used to compare against end(), just
use is_contained instead.
No functionality change is intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278433 91177308-0d34-0410-b5e6-96231b3b80d8
Process::GetEnv does the right thing across our platforms.
CommandLine.cpp had, more or less, the same logic. Let's remove the
duplication.
No functional change is intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276572 91177308-0d34-0410-b5e6-96231b3b80d8
