[Lanai] Always use the version of computeKnownBits that returns a value. NFCI.

Continues the work started by @bogner in rL340594 to remove uses of the KnownBits output paramater version.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@349905 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Lanai/LanaiISelLowering.cpp b/lib/Target/Lanai/LanaiISelLowering.cpp
index 045a897c4126adcd88bc4537ac977e644b197e17..0411704be6fb71f1fd8920d70dcfe10c6db48340 100644 (file)
--- a/lib/Target/Lanai/LanaiISelLowering.cpp
+++ b/lib/Target/Lanai/LanaiISelLowering.cpp
@@ -1498,8 +1498,8 @@ void LanaiTargetLowering::computeKnownBitsForTargetNode(
     break;
   case LanaiISD::SELECT_CC:
     KnownBits Known2;
-    DAG.computeKnownBits(Op->getOperand(0), Known, Depth + 1);
-    DAG.computeKnownBits(Op->getOperand(1), Known2, Depth + 1);
+    Known = DAG.computeKnownBits(Op->getOperand(0), Depth + 1);
+    Known2 = DAG.computeKnownBits(Op->getOperand(1), Depth + 1);
     Known.Zero &= Known2.Zero;
     Known.One &= Known2.One;
     break;