Make note of the -simplify-libcalls pass.

llvm-svn: 22049
This commit is contained in:
Reid Spencer 2005-05-15 06:05:11 +00:00
parent 4b72dca53e
commit 90b3a2968f

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@ -211,6 +211,12 @@ which primarily helps iterator-intensive C++ codes.</li>
<li>The code generator now uses information about takes advantage of commutative
two-address instructions when performing register allocation.</li>
<li>A new pass has been added to gccas to simplify well-known library calls. The
pass will short circuit calls to many of the string, memory, and printf type
functions or replace the calls with simpler/faster calls, where possible given
information known statically about the arguments to the call. To use the
pass, specify <tt>-simplify-libcalls</tt> to the <tt>opt</tt> tool.</li>
</ol>
</div>