<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0cm;
margin-right:0cm;
margin-bottom:0cm;
margin-left:36.0pt;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I haven’t found much time to work on LNT in the past few months and wanted to come back to finally<br>land my binary hash patch, but wanted to do a bit more testing on it. That’s when I realized that there<br>isn’t much documentation on how to develop LNT and particularly on how to best run the regression<br>tests. Therefore, I’ve started writing a very initial developer guide for LNT, which I’ve just uploaded for<br>review at http://reviews.llvm.org/D13101.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>While writing these guidelines on how to run regression tests while developing LNT, similar to how everyone<br>runs regression tests when developing other LLVM sub-projects, I realized again that running the regression<br>tests leave temporary files in the source checkout. That has annoyed me quite a bit in the past, e.g. every<br>time I needed to run something like “git status” in there. The attached 2 patches should fix this.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The first patch makes sure that no .pyc files get generated when running the regression tests.<o:p></o:p></p><p class=MsoNormal>The second patch results in temporary files being created in a sub-directory called “test_run_tmp” of the current directory,<br>instead of scattered across the test source code directory. This makes it possible to run the tests out-of-source-tree.<br>Even when you do run the tests in the source tree, all the temporary files are in a separate directory, not<br>scattered across the test source directories.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Do these changes look fine to commit?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Kristof<o:p></o:p></p></div></body></html>