llvm-project.git/llvm/docs/CommandLine.rst, branch users/nico/python-2

[CommandLine] Do not print empty categories with '--help-hidden' (#77043)

2024-01-08T22:03:16+00:00

If a category has no options associated with it, the `--help-hidden`
command still shows that category with the annotation "This option
category has no options", and this is how it was implemented from the
beginning when the categories were introduced, see commit 0537a98878. A
feature to hide unrelated options was added later, in
https://reviews.llvm.org/D7100. Now, if a tool needs to hide unrelated
options that are associated with categories, leaving some of them empty,
those categories will still be visible on the `--help-hidden` output,
even if they have no use for the tool; see the changes in
`llvm/test/tools/llvm-debuginfo-analyzer/cmdline.test` for an example.

The patch ensures that only categories with options are shown on both
main and hidden help output.

Remove unneeded cl::ZeroOrMore for cl::list options

2022-06-05T06:51:13+00:00

Use ManagedStatic and lazy initialization of cl::opt in libSupport to make it free of global initializer

2021-07-16T07:38:16+00:00

We can build it with -Werror=global-constructors now. This helps
in situation where libSupport is embedded as a shared library,
potential with dlopen/dlclose scenario, and when command-line
parsing or other facilities may not be involved. Avoiding the
implicit construction of these cl::opt can avoid double-registration
issues and other kind of behavior.

Reviewed By: lattner, jpienaar

Differential Revision: https://reviews.llvm.org/D105959

Revert "Use ManagedStatic and lazy initialization of cl::opt in libSupport to make it free of global initializer"

2021-07-16T07:35:13+00:00

This reverts commit af9321739b20becf170e6bb5060b8d780e1dc8dd.
Still some specific config broken in some way that requires more
investigation.

Use ManagedStatic and lazy initialization of cl::opt in libSupport to make it free of global initializer

2021-07-16T06:54:26+00:00

We can build it with -Werror=global-constructors now. This helps
in situation where libSupport is embedded as a shared library,
potential with dlopen/dlclose scenario, and when command-line
parsing or other facilities may not be involved. Avoiding the
implicit construction of these cl::opt can avoid double-registration
issues and other kind of behavior.

Reviewed By: lattner, jpienaar

Differential Revision: https://reviews.llvm.org/D105959

Revert "Use ManagedStatic and lazy initialization of cl::opt in libSupport to make it free of global initializer"

2021-07-16T03:46:53+00:00

This reverts commit 42f588f39c5ce6f521e3709b8871d1fdd076292f.
Broke some buildbots

Use ManagedStatic and lazy initialization of cl::opt in libSupport to make it free of global initializer

2021-07-16T03:33:20+00:00

We can build it with -Werror=global-constructors now. This helps
in situation where libSupport is embedded as a shared library,
potential with dlopen/dlclose scenario, and when command-line
parsing or other facilities may not be involved. Avoiding the
implicit construction of these cl::opt can avoid double-registration
issues and other kind of behavior.

Reviewed By: lattner, jpienaar

Differential Revision: https://reviews.llvm.org/D105959

[llvm] Fix typos in documentation (NFC)

2021-02-27T18:09:23+00:00

[ConstProp] Remove ConstantPropagation

2020-08-26T22:51:30+00:00

As discussed in
http://lists.llvm.org/pipermail/llvm-dev/2020-July/143801.html.

Currently no users outside of unit tests.

Replace all instances in tests of -constprop with -instsimplify.
Notable changes in tests:
* vscale.ll - @llvm.sadd.sat.nxv16i8 is evaluated by instsimplify, use a fake intrinsic instead
* InsertElement.ll - insertelement undef is removed by instsimplify in @insertelement_undef
llvm/test/Transforms/ConstProp moved to llvm/test/Transforms/InstSimplify/ConstProp

Reviewed By: lattner, nikic

Differential Revision: https://reviews.llvm.org/D85159

[Support][CommandLine] Delete unused llvm::cl::ParseEnvrironmentOptions

2020-07-31T17:48:09+00:00

The function was added in 2003. It is not used and can be emulated with ParseCommandLineOptions.