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llvm-mirror/test/tools/llvm-strings/help.test
Fangrui Song 98d2a19fea [llvm-strings] Switch command line parsing from llvm::cl to OptTable
Some behavior changes:

* `-t=d` is removed. Use `-t d` instead.
* one-dash long options like `-all` are supported. Use `--all` instead.
* `--all=0` or `--all=false` cannot be used. (Note: `--all` is silently ignored anyway)
* `--help-list` is removed. This is a `cl::` specific option.

Nobody is likely leveraging any of the above.

Advantages:

* `-t` diagnostic gets improved.
* in the absence of `HideUnrelatedOptions`, `--help` will not list unrelated options if linking against libLLVM-13git.so or linker GC is not used.
* Decrease the probability of cl::opt collision if we do decide to support multiplexing

Note: because the tool is so simple, used more for forensics instead of a building
tool, and its long options are unlikely used in one-dash form, I just drop the
one-dash form in this patch.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D104889
2021-07-05 10:46:17 -07:00

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## Show that help text is printed correctly when requested.
RUN: llvm-strings -h | FileCheck %s
RUN: llvm-strings --help | FileCheck %s
CHECK: OVERVIEW: llvm string dumper
CHECK: USAGE: llvm-strings [options] <input object files>{{$}}
CHECK: OPTIONS:
CHECK: --all
CHECK: -a
CHECK: Pass @FILE as argument to read options from FILE.