Small improvement to Compiler-RT docs and add a CREDITS.TXT file to source.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@77934 91177308-0d34-0410-b5e6-96231b3b80d8
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<li>A target-independent implementation of the Apple "Blocks" runtime
interfaces.</li>
</ul>
-
+
+ <!--=====================================================================-->
+ <h2 id="dir-structure">Source Structure</h2>
+ <!--=====================================================================-->
+
+ <p>A short explanation of the directory structure of compiler-rt:</p>
+
+ <p>For testing it is possible to build a generic library and an optimized library.
+ The optimized library is formed by overlaying the optimized versions onto the generic library.
+ Of course, some architectures have additional functions,
+ so the optimized library may have functions not found in the generic version.</p>
+
+ <ul>
+ <li> lib/ Is a generic portable implementations.</li>
+ <li> lib/<arch> has optimized version for the following supported architectures:
+ <ul>
+ <li>i386</li>
+ <li>X86-64</li>
+ <li>PowerPC</li>
+ <li>PowerPC 64</li>
+ </ul></li>
+ </ul>
+
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<h2>Get it and get involved!</h2>
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