<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">If this is a dual core, you may try <div><br></div><div>make -j2</div><div><br></div><div>to boost the build.</div><div><br><div><div>Le 19 avr. 2010 à 11:52, Diego Iastrubni a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">How about building this in the CMake or auto* level we build a separate build script for it? I attache a simple version here. It does seem to work here. It's a shell script, which uses cmake for the building but it seems the second stage file works. I am not really sure why a third stage is needed, but it can be added quite easily. A windows version should be trivial to write (next week).<div><br></div><div>A few rants about clang:</div><div>This is the first time I was able to bootstrap the whole compiler. Which is great, don't get me wrong. But it was painfully slow, and the CPU of my machine became *really* hot unlike with gcc. The whole building process took more then 4 hours on this old cual core machine, while stage one took an hour more or less (I need to do a test again, without ccache).</div><div><br></div><div><div><font class="Apple-style-span" face="'courier new', monospace">[elcuco@pinky ~/src/llvm] ls bootstrap-stage-2/bin/ -ltr</font></div><div><font class="Apple-style-span" face="'courier new', monospace">total 262708</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 5641794 2010-04-19 03:12 tblgen</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 985416 2010-04-19 04:41 FileCheck</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6374 2010-04-19 04:41 count</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 122992 2010-04-19 04:41 not</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 24101 2010-04-19 05:34 llvm-config</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 18325933 2010-04-19 05:36 opt</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 7705301 2010-04-19 05:36 llvm-as</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6671138 2010-04-19 05:36 llvm-dis</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 31626605 2010-04-19 05:37 llvm-mc</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 32630459 2010-04-19 05:38 llc</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6814656 2010-04-19 05:38 llvm-ranlib</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6875243 2010-04-19 05:38 llvm-ar</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6827605 2010-04-19 05:38 llvm-nm</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 14608549 2010-04-19 05:39 llvm-ld</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 7506306 2010-04-19 05:39 llvm-prof</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 8310633 2010-04-19 05:39 llvm-link</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 25527057 2010-04-19 05:40 lli</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 8217315 2010-04-19 05:40 llvm-extract</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 18994379 2010-04-19 05:42 bugpoint</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 1011333 2010-04-19 05:43 llvm-bcanalyzer</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6468 2010-04-19 05:43 llvm-stub</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 42747 2010-04-19 07:28 c-index-test</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 60447800 2010-04-19 07:29 clang</font></div><div><font class="Apple-style-span" face="'courier new', monospace">lrwxrwxrwx. 1 elcuco elcuco 51 2010-04-19 07:29 clang++ -> /home/elcuco/src/llvm/bootstrap-stage-2/bin/./clang</font></div><div><br></div></div><div><div><br><div class="gmail_quote">On Fri, Apr 16, 2010 at 12:27 AM, Lacey, Mark <span dir="ltr"><<a href="mailto:mark.lacey@intel.com">mark.lacey@intel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0.8ex; border-left-width: 1px; border-left-color: rgb(204, 204, 204); border-left-style: solid; padding-left: 1ex; "><div class="im">> We want to make Clang great, and we need your help!<br><br></div>Doug,<br><br>I don't see any type of selfbuild target in the LLVM top level makefile.<br>This would be a useful way to automate the self build process.<br><br>I've used similar mechanisms before on other compilers, where you can<br>trivially invoke a three phase build (first you do a full build with your<br>system compiler, then you use your built compiler to do another full build,<br>and then take that most recent build compiler to build yet again...). The<br>build options of the last two phases are identical, and the object files<br>from those last two passes are compared to ensure that they are identical.<br><br>Ideally you can control the build options of the initial build and last two<br>builds independently (e.g. build a compiler without optimizations and with<br>assertions, and then do the last two builds with assertions disabled, and<br>optimizations on) - I'm not sure how easy this is with the autoconfig based<br>system LLVM/clang use, if at all.<br><font color="#888888"><br>Mark<br><br></font><br>_______________________________________________<br>LLVM Developers mailing list<br><a href="mailto:LLVMdev@cs.uiuc.edu">LLVMdev@cs.uiuc.edu</a> <a href="http://llvm.cs.uiuc.edu/" target="_blank">http://llvm.cs.uiuc.edu</a><br><a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev</a><br><br></blockquote></div><br></div></div></div><span><bootstrap-clang.sh></span>_______________________________________________<br>cfe-dev mailing list<br><a href="mailto:cfe-dev@cs.uiuc.edu">cfe-dev@cs.uiuc.edu</a><br>http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev<br></blockquote></div><br><div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div>-- Jean-Daniel</div><div><br></div><div><br></div></span><br class="Apple-interchange-newline"></div></div><div><div>Le 19 avr. 2010 à 11:52, Diego Iastrubni a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">How about building this in the CMake or auto* level we build a separate build script for it? I attache a simple version here. It does seem to work here. It's a shell script, which uses cmake for the building but it seems the second stage file works. I am not really sure why a third stage is needed, but it can be added quite easily. A windows version should be trivial to write (next week).<div>
<br></div><div>A few rants about clang:</div><div>This is the first time I was able to bootstrap the whole compiler. Which is great, don't get me wrong. But it was painfully slow, and the CPU of my machine became *really* hot unlike with gcc. The whole building process took more then 4 hours on this old cual core machine, while stage one took an hour more or less (I need to do a test again, without ccache).</div>
<div><br></div><div><div><font class="Apple-style-span" face="'courier new', monospace">[elcuco@pinky ~/src/llvm] ls bootstrap-stage-2/bin/ -ltr</font></div><div><font class="Apple-style-span" face="'courier new', monospace">total 262708</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 5641794 2010-04-19 03:12 tblgen</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 985416 2010-04-19 04:41 FileCheck</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6374 2010-04-19 04:41 count</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 122992 2010-04-19 04:41 not</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 24101 2010-04-19 05:34 llvm-config</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 18325933 2010-04-19 05:36 opt</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 7705301 2010-04-19 05:36 llvm-as</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6671138 2010-04-19 05:36 llvm-dis</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 31626605 2010-04-19 05:37 llvm-mc</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 32630459 2010-04-19 05:38 llc</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6814656 2010-04-19 05:38 llvm-ranlib</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6875243 2010-04-19 05:38 llvm-ar</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6827605 2010-04-19 05:38 llvm-nm</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 14608549 2010-04-19 05:39 llvm-ld</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 7506306 2010-04-19 05:39 llvm-prof</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 8310633 2010-04-19 05:39 llvm-link</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 25527057 2010-04-19 05:40 lli</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 8217315 2010-04-19 05:40 llvm-extract</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 18994379 2010-04-19 05:42 bugpoint</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 1011333 2010-04-19 05:43 llvm-bcanalyzer</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 6468 2010-04-19 05:43 llvm-stub</font></div><div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 42747 2010-04-19 07:28 c-index-test</font></div>
<div><font class="Apple-style-span" face="'courier new', monospace">-rwxrwxr-x. 1 elcuco elcuco 60447800 2010-04-19 07:29 clang</font></div><div><font class="Apple-style-span" face="'courier new', monospace">lrwxrwxrwx. 1 elcuco elcuco 51 2010-04-19 07:29 clang++ -> /home/elcuco/src/llvm/bootstrap-stage-2/bin/./clang</font></div>
<div><br></div></div><div><div><br><div class="gmail_quote">On Fri, Apr 16, 2010 at 12:27 AM, Lacey, Mark <span dir="ltr"><<a href="mailto:mark.lacey@intel.com">mark.lacey@intel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">> We want to make Clang great, and we need your help!<br>
<br>
</div>Doug,<br>
<br>
I don't see any type of selfbuild target in the LLVM top level makefile.<br>
This would be a useful way to automate the self build process.<br>
<br>
I've used similar mechanisms before on other compilers, where you can<br>
trivially invoke a three phase build (first you do a full build with your<br>
system compiler, then you use your built compiler to do another full build,<br>
and then take that most recent build compiler to build yet again...). The<br>
build options of the last two phases are identical, and the object files<br>
from those last two passes are compared to ensure that they are identical.<br>
<br>
Ideally you can control the build options of the initial build and last two<br>
builds independently (e.g. build a compiler without optimizations and with<br>
assertions, and then do the last two builds with assertions disabled, and<br>
optimizations on) - I'm not sure how easy this is with the autoconfig based<br>
system LLVM/clang use, if at all.<br>
<font color="#888888"><br>
Mark<br>
<br>
</font><br>_______________________________________________<br>
LLVM Developers mailing list<br>
<a href="mailto:LLVMdev@cs.uiuc.edu">LLVMdev@cs.uiuc.edu</a> <a href="http://llvm.cs.uiuc.edu/" target="_blank">http://llvm.cs.uiuc.edu</a><br>
<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev</a><br>
<br></blockquote></div><br></div></div></div>
<span><bootstrap-clang.sh></span>_______________________________________________<br>cfe-dev mailing list<br><a href="mailto:cfe-dev@cs.uiuc.edu">cfe-dev@cs.uiuc.edu</a><br>http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev<br></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div>-- Jean-Daniel</div><div><br></div><div><br></div></span><br class="Apple-interchange-newline">
</div>
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