Simon Pilgrim 761bbed264 [DAG] foldSubToUSubSat - fold sub(a,trunc(umin(zext(a),b))) -> usubsat(a,trunc(umin(b,SatLimit)))
This moves the last custom x86 USUBSAT fold to generic DAGCombine.

Completes PR40111

Differential Revision: https://reviews.llvm.org/D96703
2021-02-20 12:02:07 +00:00
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2020-04-08 13:44:31 -04:00