[docs] cleanup documentation on lit substitutions

1. Added missing substitutions to the documentation in docs/TestingGuide.rst
2. Modified docs/CommandGuide/lit.rst to only document the "base" set of substitutions and to refer the reader to docs/TestingGuide.rst for more detailed info on substitutions.

Patch by bd1976llvm

Differential Revision: https://reviews.llvm.org/D29281

llvm-svn: 294586

1 files changed, 5 insertions, 9 deletions

diff --git a/llvm/docs/CommandGuide/lit.rst b/llvm/docs/CommandGuide/lit.rst
index 2e9054b1ce9..85a9268a11f 100644
--- a/llvm/docs/CommandGuide/lit.rst
+++ b/llvm/docs/CommandGuide/lit.rst
@@ -379,7 +379,7 @@ PRE-DEFINED SUBSTITUTIONS
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 :program:`lit` provides various patterns that can be used with the RUN command.
-These are defined in TestRunner.py.
+These are defined in TestRunner.py. The base set of substitutions are:
 
  ========== ==============
   Macro      Substitution
@@ -391,17 +391,13 @@ These are defined in TestRunner.py.
  %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`.
+Other substitutions are provided that are variations on this base set and
+further substitution patterns can be defined by each test module. See the
+modules :ref:`local-configuration-files`.
 
-More information on the testing infrastucture can be found in the
+More detailed information on substitutions can be found in the
 :doc:`../TestingGuide`.
 
 TEST RUN OUTPUT FORMAT