diff --git a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/unary/ConvertBooleanNode.java b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/unary/ConvertBooleanNode.java
index ff55cf9f8b2ea74de50f2a1f1f5752d537e31fd9..0541c5523b79038b7dbd6c335f7e281640464bd9 100644
--- a/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/unary/ConvertBooleanNode.java
+++ b/com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/unary/ConvertBooleanNode.java
@@ -32,18 +32,17 @@ import com.oracle.truffle.api.frame.VirtualFrame;
 import com.oracle.truffle.api.interop.TruffleObject;
 import com.oracle.truffle.api.profiles.BranchProfile;
 import com.oracle.truffle.r.runtime.RError;
+import com.oracle.truffle.r.runtime.RInternalError;
 import com.oracle.truffle.r.runtime.RRuntime;
 import com.oracle.truffle.r.runtime.data.RComplex;
-import com.oracle.truffle.r.runtime.data.RComplexVector;
-import com.oracle.truffle.r.runtime.data.RList;
-import com.oracle.truffle.r.runtime.data.RLogicalVector;
+import com.oracle.truffle.r.runtime.data.RLogical;
 import com.oracle.truffle.r.runtime.data.RNull;
 import com.oracle.truffle.r.runtime.data.RRaw;
-import com.oracle.truffle.r.runtime.data.RRawVector;
-import com.oracle.truffle.r.runtime.data.RStringVector;
-import com.oracle.truffle.r.runtime.data.model.RAbstractDoubleVector;
-import com.oracle.truffle.r.runtime.data.model.RAbstractIntVector;
+import com.oracle.truffle.r.runtime.data.model.RAbstractAtomicVector;
+import com.oracle.truffle.r.runtime.data.model.RAbstractListVector;
 import com.oracle.truffle.r.runtime.data.model.RAbstractVector;
+import com.oracle.truffle.r.runtime.data.nodes.VectorAccess;
+import com.oracle.truffle.r.runtime.data.nodes.VectorAccess.SequentialIterator;
 import com.oracle.truffle.r.runtime.interop.ForeignArray2R;
 import com.oracle.truffle.r.runtime.nodes.RNode;
 import com.oracle.truffle.r.runtime.nodes.RSyntaxNode;
@@ -53,6 +52,8 @@ import com.oracle.truffle.r.runtime.ops.na.NAProfile;
 @ImportStatic(RRuntime.class)
 public abstract class ConvertBooleanNode extends RNode {
 
+    protected static final int ATOMIC_VECTOR_LIMIT = 8;
+
     private final NAProfile naProfile = NAProfile.create();
     private final BranchProfile invalidElementCountBranch = BranchProfile.create();
     @Child private ConvertBooleanNode recursiveConvertBoolean;
@@ -120,10 +121,16 @@ public abstract class ConvertBooleanNode extends RNode {
         return RRuntime.raw2logical(value.getValue());
     }
 
-    private void checkLength(RAbstractVector value) {
-        if (value.getLength() != 1) {
+    @Specialization
+    protected byte doRLogical(RLogical value) {
+        // fast path for very common case, handled also in doAtomicVector
+        return value.getValue();
+    }
+
+    private void checkLength(int length) {
+        if (length != 1) {
             invalidElementCountBranch.enter();
-            if (value.getLength() == 0) {
+            if (length == 0) {
                 throw error(RError.Message.LENGTH_ZERO);
             } else {
                 warning(RError.Message.LENGTH_GT_1);
@@ -131,46 +138,33 @@ public abstract class ConvertBooleanNode extends RNode {
         }
     }
 
-    @Specialization
-    protected byte doIntVector(RAbstractIntVector value) {
-        checkLength(value);
-        return doInt(value.getDataAt(0));
-    }
-
-    @Specialization
-    protected byte doDoubleVector(RAbstractDoubleVector value) {
-        checkLength(value);
-        return doDouble(value.getDataAt(0));
-    }
-
-    @Specialization
-    protected byte doLogicalVector(RLogicalVector value) {
-        checkLength(value);
-        return doLogical(value.getDataAt(0));
-    }
-
-    @Specialization
-    protected byte doComplexVector(RComplexVector value) {
-        checkLength(value);
-        return doComplex(value.getDataAt(0));
-    }
-
-    @Specialization
-    protected byte doStringVector(RStringVector value) {
-        checkLength(value);
-        return doString(value.getDataAt(0));
-    }
-
-    @Specialization
-    protected byte doRawVector(RRawVector value) {
-        checkLength(value);
-        return RRuntime.raw2logical(value.getRawDataAt(0));
+    @Specialization(guards = "access.supports(value)", limit = "ATOMIC_VECTOR_LIMIT")
+    protected byte doVector(RAbstractVector value,
+                    @Cached("value.access()") VectorAccess access) {
+        SequentialIterator it = access.access(value);
+        checkLength(access.getLength(it));
+        access.next(it);
+        switch (access.getType()) {
+            case Integer:
+                return doInt(access.getInt(it));
+            case Double:
+                return doDouble(access.getDouble(it));
+            case Raw:
+                return RRuntime.raw2logical(access.getRaw(it));
+            case Logical:
+                return doLogical(access.getLogical(it));
+            case Character:
+                return doString(access.getString(it));
+            case Complex:
+                return doComplex(access.getComplex(it));
+            default:
+                throw error(RError.Message.ARGUMENT_NOT_INTERPRETABLE_LOGICAL);
+        }
     }
 
-    @Specialization
-    protected byte doRawVector(RList value) {
-        checkLength(value);
-        throw error(RError.Message.ARGUMENT_NOT_INTERPRETABLE_LOGICAL);
+    @Specialization(replaces = "doVector")
+    protected byte doVectorGeneric(RAbstractVector value) {
+        return doVector(value, value.slowPathAccess());
     }
 
     @Specialization(guards = "isForeignObject(obj)")
@@ -192,8 +186,7 @@ public abstract class ConvertBooleanNode extends RNode {
         if (node instanceof ConvertBooleanNode) {
             return (ConvertBooleanNode) node;
         }
-        ConvertBooleanNode result = ConvertBooleanNodeGen.create(node.asRNode());
-        return result;
+        return ConvertBooleanNodeGen.create(node.asRNode());
     }
 
     @Override