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Fix the instructions for adding an intrinsic. 

llvm-svn: 25310
This commit is contained in:
Nate Begeman 2006-01-14 01:27:10 +00:00
parent 82049eba2c
commit f6b7dd7ca9
1 changed files with 7 additions and 3 deletions
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llvm/docs/ExtendingLLVM.html
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@ -97,9 +97,13 @@ function and then be turned into an instruction if warranted.</p>
not access memory or does not write to memory, add it to the relevant list
of functions.</li>
<li><tt>llvm/lib/Transforms/Utils/Local.cpp</tt>: If it is possible to constant
fold your intrinsic, add support to it in the <tt>canConstantFoldCallTo</tt> and
<tt>ConstantFoldCall</tt> functions.</li>
<li><tt>llvm/lib/Analysis/ConstantFolding.cpp</tt>: If it is possible to
constant fold your intrinsic, add support to it in the
<tt>canConstantFoldCallTo</tt> and <tt>ConstantFoldCall</tt> functions.</li>
<li><tt>llvm/lib/Transforms/Utils/Local.cpp</tt>: If your intrinsic has no side-
effects, add it to the list of intrinsics in the
<tt>isInstructionTriviallyDead</tt> function.</li>
<li>Test your intrinsic</li>