Add a floor intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160791 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 8cbe818..2cdc41b 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4929,6 +4929,11 @@
                              getValue(I.getArgOperand(0)).getValueType(),
                              getValue(I.getArgOperand(0))));
     return 0;
+  case Intrinsic::floor:
+    setValue(&I, DAG.getNode(ISD::FFLOOR, dl,
+                             getValue(I.getArgOperand(0)).getValueType(),
+                             getValue(I.getArgOperand(0))));
+    return 0;
   case Intrinsic::fma:
     setValue(&I, DAG.getNode(ISD::FMA, dl,
                              getValue(I.getArgOperand(0)).getValueType(),