--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This program micro-benches do/catches
+# arg1 is the mode, arg2 is the depth
+
+# mode 0, no catch, only calls
+fun sub0(n: Int)
+do
+ if n < 0 then return
+ do
+ sub0(n-1)
+ sub0(n-1)
+ end
+end
+
+# mode 1, unused catches
+fun sub1(n: Int)
+do
+ if n < 0 then return
+ do
+ sub1(n-1)
+ sub1(n-1)
+ catch
+ print "dead code"
+ end
+end
+
+# mode 2, many nested catches and aborts
+fun sub2(n: Int)
+do
+ if n < 0 then abort
+ do
+ sub2(n-1)
+ sub2(n-1)
+ catch
+ if n > 0 then print "dead code"
+ end
+end
+
+
+var m = 1
+if args.length > 0 then m = args[0].to_i
+
+var n = 25
+if args.length > 1 then n = args[1].to_i
+
+if m == 0 then
+ print "mode {m} (no catch, no abort), size n={n}"
+ sub0(n)
+else if m == 1 then
+ print "mode {m} (catch, no abort), size n={n}"
+ sub1(n)
+else if m == 2 then
+ print "mode {m} (catch, abort), size n={n}"
+ sub2(n)
+else
+ abort
+end