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git-svn-id: https://wala.svn.sourceforge.net/svnroot/wala/trunk@1021 f5eafffb-2e1d-0410-98e4-8ec43c5233c4
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@ -31,7 +31,23 @@ public abstract class SSAInstruction implements IInstruction {
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}
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/**
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* TODO: document me ... what do my parameters mean? (Julian?)
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* This method is meant to be used during SSA conversion for an IR
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* that is not in SSA form. It creates a new SSAInstruction of the
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* same type as the receiver, with a combination of the receiver's
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* uses and defs and those from the method parameters.
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*
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* In particular, if the 'defs' parameter is null, then the new
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* instruction has the same defs as the receiver. If 'defs' is not
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* null, it must be an array with a size equal to the number of
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* defs that the receiver instruction has. In this case, the new
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* instruction has defs taken from the array. The uses of the new
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* instruction work in the same way with the 'uses' parameter.
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*
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* Note that this only applies to CAst-based IR translation, since
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* Java bytecode-based IR generation uses a different SSA
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* construction mechanism.
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*
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* @see com.ibm.wala.cast.ir.ssa.SSAConversion
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*/
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public abstract SSAInstruction copyForSSA(int[] defs, int[] uses);
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