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Added some more information on how to use "delta" to reduce testcases.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34553 91177308-0d34-0410-b5e6-96231b3b80d8
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Bill Wendling 2007-02-24 03:46:42 +00:00
parent e748401b18
commit fa8a0e5256
1 changed files with 10 additions and 6 deletions
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docs/HowToSubmitABug.html
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@ -81,7 +81,7 @@ information:</p>
<div class="doc_text">
<p>More often than not, bugs in the compiler cause it to crash - often due to an
<p>More often than not, bugs in the compiler cause it to crash&mdash;often due to an
assertion failure of some sort. If you are running <tt><b>opt</b></tt>
directly, and something crashes, jump to the section on
<a href="#passes">bugs in LLVM passes</a>. Otherwise, the most important
@ -126,12 +126,16 @@ bunch of stuff, and should end with telling you that one of
<tt>llvm-gcc</tt> command that resulted in the crash, but add the
<tt>-save-temps</tt> option. The compiler will crash again, but it will leave
behind a <tt><i>foo</i>.i</tt> file (containing preprocessed C source code) and
possibly <tt><i>foo</i>.s</tt> (containing LLVM assembly code), for each
possibly <tt><i>foo</i>.s</tt> (containing LLVM assembly code) for each
compiled <tt><i>foo</i>.c</tt> file. Send us the <tt><i>foo</i>.i</tt> file,
along with a brief description of the error it caused. A tool that might help
you reduce a front-end testcase to a more manageable size is
<a href="http://delta.tigris.org/">delta</a>.
</p>
along with a brief description of the error it caused.</p>
<p>The <a href="http://delta.tigris.org/">delta</a> tool helps to reduce the
preprocessed file down to the smallest amount of code that still replicates the
problem. You're encouraged to use delta to reduce the code to make the
developers' lives easier. <a
href="http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction">This website</a>
has instructions on the best way to use delta.</p>
</div>