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2017 May 22
2
Optimizing diamond pattern in DAGCombine
I'm trying to optimize a pattern that goes roughly as:
A
/ \
B C
\ /
D
Problem is, when A gets modified, B and C get added back to the worklist,
but D doesn't. Readding D to the worklist just create an infinite loop
where one process D again and again.
Is there a proper way to make this work ?
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