James Henderson 583ccd4384 [FileCheck] Add CHECK-EMPTY directive for checking for blank lines ...

Prior to this change, there was no clean way of getting FileCheck to
check that a line is completely empty. The expected way of using
"CHECK: {{^$}}" does not work because the '^' matches the end of the
previous match (this behaviour may be desirable in certain instances).
For the same reason, "CHECK-NEXT: {{^$}}" will fail when the previous
match was at the end of the line, as the pattern will match there.
Using the recommended [[:space:]] to match an explicit new line could
also match a space, and thus is not always desired. Literal '\n'
matches also do not work. A workaround was suggested in the review, but
it is a little clunky.

This change adds a new directive that behaves the same as CHECK-NEXT,
except that it only matches against empty lines (nothing, not even
whitespace, is allowed). As with CHECK-NEXT, it will fail if more than
one newline occurs before the next blank line. Example usage:
; test.txt
foo

bar
; CHECK: foo
; CHECK-EMPTY:
; CHECK-NEXT: bar

Differential Revision: https://reviews.llvm.org/D28896

Reviewed by: probinson


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335613 91177308-0d34-0410-b5e6-96231b3b80d8

2018-06-26 15:15:45 +00:00

..

bugpoint.rst

bugpoint: add flag -verbose-errors

2016-07-15 23:15:06 +00:00

dsymutil.rst

[dsymutil] Upstream emitting of papertrail warnings.

2018-04-02 10:40:43 +00:00

FileCheck.rst

[FileCheck] Add CHECK-EMPTY directive for checking for blank lines

2018-06-26 15:15:45 +00:00

index.rst

Re-land r329156 "Add llvm-exegesis tool."

2018-04-04 11:37:06 +00:00

lit.rst

[lit] Report line number for failed RUN command

2018-05-31 00:55:32 +00:00

llc.rst

[MC] Fix -stack-size-section on ARM

2018-01-17 09:01:29 +00:00

lli.rst

[docs] Update code block for compatibility with Sphinx 1.5.1

2017-11-06 11:47:24 +00:00

llvm-ar.rst

Remove more dead documentation.

2013-07-30 04:06:06 +00:00

llvm-as.rst

Fix the formatting a bit.

2012-06-20 11:25:11 +00:00

llvm-bcanalyzer.rst

Documentation: use paths relative to document root in links.

2012-12-12 21:16:29 +00:00

llvm-build.rst

Fix typos found by http://github.com/lyda/misspell-check

2012-06-02 10:20:22 +00:00

llvm-config.rst

Fix typos:

2014-08-11 18:04:46 +00:00

llvm-cov.rst

[llvm-cov] Implement -ignore-filename-regex= option for excluding source files.

2018-04-09 15:20:35 +00:00

llvm-diff.rst

[docs] Add ReST version of all the man pages.

2012-05-08 16:50:35 +00:00

llvm-dis.rst

[docs] Add ReST version of all the man pages.

2012-05-08 16:50:35 +00:00

llvm-dwarfdump.rst

Remove duplicate option from documentation.

2017-12-09 19:09:59 +00:00

llvm-exegesis-analysis.png

[llvm-exegesis] Show sched class details in analysis.

2018-05-24 10:47:05 +00:00

llvm-exegesis.rst

[docs] Fix indentation of llvm-exegesis command line arguments

2018-06-18 20:05:02 +00:00

llvm-extract.rst

docs: command guide: cleanups, no text changes

2013-08-18 08:32:32 +00:00

llvm-lib.rst

Start adding documentation for llvm-lib.

2015-07-17 18:49:26 +00:00

llvm-link.rst

Update documentation of llvm-link to reflect recent cleanups.

2013-03-19 16:04:19 +00:00

llvm-mca.rst

Fix typo in declaring code-block snippet

2018-05-17 16:58:42 +00:00

llvm-nm.rst

llvm-nm: Add support for symbol demangling (-C/--demangle)

2017-06-29 18:29:05 +00:00

llvm-pdbutil.rst

[docs] Update code block for compatibility with Sphinx 1.5.1

2017-11-06 11:47:24 +00:00

llvm-profdata.rst

[ProfileData] Add new option to dump topn hottest functions

2017-07-11 20:30:43 +00:00

llvm-readobj.rst

[llvm-readobj] Add -elf-section-groups option

2016-01-26 19:46:39 +00:00

llvm-stress.rst

Documentation for llvm-stress: reformat

2012-11-29 19:05:55 +00:00

llvm-symbolizer.rst

[llvm-symbolizer] Print out non-address lines verbatim.

2016-01-07 23:57:41 +00:00

opt.rst

Rename DEBUG macro to LLVM_DEBUG.

2018-05-14 12:53:11 +00:00

tblgen.rst

[docs] Update doc after split of -gen-intrinsic in r335407

2018-06-25 19:40:08 +00:00