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2010 Jan 19
1
[LLVMdev] ComplexPattern
...es?
Here's the first line of the definition (from TargetSelectionDAG.td) for
reference:
class ComplexPattern<ValueType ty, int numops, string fn,
list<SDNode> roots = [],
list<SDNodeProperty> props = [],
list<CPAttribute> attrs = []>
As far as I can tell it gives the name of a selection function (fn) that
will be called to match that particular ComplexPattern. Should that
function return true that pattern has matched. The match function can
also fill in some operands that can be used later on (Number i...