forked from OSchip/llvm-project
66 lines
1.9 KiB
Plaintext
66 lines
1.9 KiB
Plaintext
|
|
=pod
|
|
|
|
=head1 NAME
|
|
|
|
FileCheck - Flexible pattern matching file verifier
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
B<FileCheck> I<match-filename> [I<--check-prefix=XXX>] [I<--strict-whitespace>]
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
B<FileCheck> reads two files (one from standard input, and one specified on the
|
|
command line) and uses one to verify the other. This behavior is particularly
|
|
useful for the testsuite, which wants to verify that the output of some tool
|
|
(e.g. llc) contains the expected information (for example, a movsd from esp or
|
|
whatever is interesting). This is similar to using grep, but it is optimized
|
|
for matching multiple different inputs in one file in a specific order.
|
|
|
|
The I<match-filename> file specifies the file that contains the patterns to
|
|
match. The file to verify is always read from standard input.
|
|
|
|
The input and output of B<FileCheck> is beyond the scope of this short
|
|
introduction. Please see the I<TestingGuide> page in the LLVM documentation.
|
|
|
|
=head1 OPTIONS
|
|
|
|
=over
|
|
|
|
=item B<--help>
|
|
|
|
Print a summary of command line options.
|
|
|
|
=item B<--check-prefix> I<prefix>
|
|
|
|
FileCheck searches the contents of I<match-filename> for patterns to match. By
|
|
default, these patterns are prefixed with "CHECK:". If you'd like to use a
|
|
different prefix (e.g. because the same input file is checking multiple
|
|
different tool or options), the B<--check-prefix> argument allows you to specify
|
|
a specific prefix to match.
|
|
|
|
=item B<--strict-whitespace>
|
|
|
|
By default, FileCheck canonicalizes input horizontal whitespace (spaces and
|
|
tabs) which causes it to ignore these differences (a space will match a tab).
|
|
The --strict-whitespace argument disables this behavior.
|
|
|
|
=item B<-version>
|
|
|
|
Show the version number of this program.
|
|
|
|
=back
|
|
|
|
=head1 EXIT STATUS
|
|
|
|
If B<FileCheck> verifies that the file matches the expected contents, it exits
|
|
with 0. Otherwise, if not, or if an error occurs, it will exit with a non-zero
|
|
value.
|
|
|
|
=head1 AUTHORS
|
|
|
|
Maintained by The LLVM Team (L<http://llvm.org>).
|
|
|
|
=cut
|