[SelectionDAG] Use KnownBits struct in DAG's computeKnownBits and simplifyDemandedBits
This patch replaces the separate APInts for KnownZero/KnownOne with a single KnownBits struct. This is similar to what was done to ValueTracking's version recently.
This is largely a mechanical transformation from KnownZero to Known.Zero.
Differential Revision: https://reviews.llvm.org/D32569
llvm-svn: 301620
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.h b/llvm/lib/Target/ARM/ARMISelLowering.h
index 8b54ce4..76e4b60 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.h
+++ b/llvm/lib/Target/ARM/ARMISelLowering.h
@@ -350,8 +350,7 @@
SDValue &Offset, ISD::MemIndexedMode &AM,
SelectionDAG &DAG) const override;
- void computeKnownBitsForTargetNode(const SDValue Op, APInt &KnownZero,
- APInt &KnownOne,
+ void computeKnownBitsForTargetNode(const SDValue Op, KnownBits &Known,
const APInt &DemandedElts,
const SelectionDAG &DAG,
unsigned Depth) const override;