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Document standard substitutions defined by lit. 

Patch by Guilherme Bufolo!

Differential Revision: http://reviews.llvm.org/D18752

llvm-svn: 265314
This commit is contained in:
Paul Robinson 2016-04-04 17:14:45 +00:00
parent 1dbf7a571f
commit f88cc148b6
1 changed files with 29 additions and 0 deletions
llvm/docs/CommandGuide
lit.rst

29
llvm/docs/CommandGuide/lit.rst
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@ -355,6 +355,35 @@ be used to define subdirectories of optional tests, or to change other
configuration parameters --- for example, to change the test format, or the
suffixes which identify test files.
PRE-DEFINED SUBSTITUTIONS
~~~~~~~~~~~~~~~~~~~~~~~~~~
:program:`lit` provides various patterns that can be used with the RUN command.
These are defined in TestRunner.py.
========== ==============
Macro Substitution
========== ==============
%s source path (path to the file currently being run)
%S source dir (directory of the file currently being run)
%p same as %S
%{pathsep} path separator
%t temporary file name unique to the test
%T temporary directory unique to the test
%% %
%/s same as %s but replace all / with \\
%/S same as %S but replace all / with \\
%/p same as %p but replace all / with \\
%/t same as %t but replace all / with \\
%/T same as %T but replace all / with \\
========== ==============
Further substitution patterns might be defined by each test module.
See the modules :ref:`local-configuration-files`.
More information on the testing infrastucture can be found in the
:doc:`../TestingGuide`.
TEST RUN OUTPUT FORMAT
~~~~~~~~~~~~~~~~~~~~~~