[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/Sparc/SparcISelLowering.h b/llvm/lib/Target/Sparc/SparcISelLowering.h
index 90d0398..cc6386b 100644
--- a/llvm/lib/Target/Sparc/SparcISelLowering.h
+++ b/llvm/lib/Target/Sparc/SparcISelLowering.h
@@ -66,8 +66,7 @@
/// in Mask are known to be either zero or one and return them in the
/// KnownZero/KnownOne bitsets.
void computeKnownBitsForTargetNode(const SDValue Op,
- APInt &KnownZero,
- APInt &KnownOne,
+ KnownBits &Known,
const APInt &DemandedElts,
const SelectionDAG &DAG,
unsigned Depth = 0) const override;