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contradict
2016 Aug 30
2
Tablegen pattern matching question
Hi all,
I want to match addition with 16bit integers. So I define a pattern
fragment as follows:
def simm16 : PatLeaf<(imm), [{ return isInt<16>(N->getSExtValue()); }]>;
Now I am confused between
(add R32:$dst, simm16:$im) and
(add R32:$dst, (i32 simm16:$im)).
Do both of them match the same pattern? Are they equivalent? If not what is
the difference?
I am also confused as to how