From 9f51bec24e2d780a4a57de0d937df4e8706847b2 Mon Sep 17 00:00:00 2001
From: Bernhard Urban <bernhard.urban@xamarin.com>
Date: Wed, 13 Apr 2016 17:03:31 -0700
Subject: [PATCH] benchmarks: microbenchmark for isinst and castclass

---
 benchmarks/isinst.benchmark |   5 ++++
 tests/small/isinst.cs       |  51 ++++++++++++++++++++++++++++++++++++
 tests/small/isinst.exe      | Bin 0 -> 3584 bytes
 3 files changed, 56 insertions(+)
 create mode 100644 benchmarks/isinst.benchmark
 create mode 100644 tests/small/isinst.cs
 create mode 100755 tests/small/isinst.exe

diff --git a/benchmarks/isinst.benchmark b/benchmarks/isinst.benchmark
new file mode 100644
index 00000000..6bed184c
--- /dev/null
+++ b/benchmarks/isinst.benchmark
@@ -0,0 +1,5 @@
+{
+  "Name": "isinst",
+  "TestDirectory": "small",
+  "CommandLine": ["isinst.exe", "25000000"]
+}
diff --git a/tests/small/isinst.cs b/tests/small/isinst.cs
new file mode 100644
index 00000000..d64c46a7
--- /dev/null
+++ b/tests/small/isinst.cs
@@ -0,0 +1,51 @@
+using System;
+
+public class MyTypes {
+	public class A {
+		public virtual long foo () {
+			return 1;
+		}
+	}
+
+	public class B : A {
+		public override long foo () {
+			return 2;
+		}
+	}
+
+	public class C : A {
+		public override long foo () {
+			return 3;
+		}
+	}
+
+	static bool bench (long iterations, object[] objs) {
+		long checksum = 0;
+		for (long i = 0; i < iterations; ++i) {
+			foreach (object o in objs) {
+				if (o is A) {
+					checksum += ((A) o).foo ();
+				}
+				if (o is B) {
+					checksum += ((B) o).foo ();
+				}
+				if (o is C) {
+					checksum += ((C) o).foo ();
+				}
+			}
+		}
+		return checksum == (4 * iterations);
+	}
+
+	public static void Main (string []args) {
+		long n =  25000000L;
+		object[] objs = new object[4];
+		objs [0] = new object ();
+		objs [1] = new A ();
+		objs [2] = new B ();
+		objs [3] = new C ();
+		if (args.Length > 0)
+			n = Int64.Parse (args[0]);
+		System.Environment.Exit (bench (n, objs) ? 0 : 1);
+	}
+}
diff --git a/tests/small/isinst.exe b/tests/small/isinst.exe
new file mode 100755
index 0000000000000000000000000000000000000000..c668ee0c8f4909bd46d8695e24c69abd0955d28b
GIT binary patch
literal 3584
zcmeHJO>7%Q6#jPO*v_Uk2`x@i^=G4`C<>J^YJgTMt(zv4K+{BZ5<&&EwzEyv*t^#5
zx^)mgxqu3&6>vaMaX`5vAwZ%6A#p$mB+7{!mkM#{jb6BLX!zc&o!C*;a)ypQGw<h{
zH{W|RyY}SichLqQ!oIc!T;(h+qsBWAD|9FJe4W6T9oPD=YA3Gs&n(%#S@GOOFIP4T
zImdAWGjEw*)iG_y9Gl9TWp}|!ZQW`N)<aK^11B_Lu+gqV*E+R05T#8zTVgK<lRd*O
zgULw`c~esSWyT6S?b6zic?0ND-;KGhh7f#5BF~7N0j}5A)m`Cq7TD5a_?L<aFoX3L
zr~cHs2BZS37Es^b&VfFa=cfH>KAZA<uRyormZ2aA)f|{A&6$*Em0SW9*RwQAtWCs;
z8>O|S-K-ykaMRI_SNefNJPwUIr+W2UmfTU<tq*ajF}y9^hPQ~M(w!_C$ztaLS3+)0
zZi^h4qtwwIxw0i*<sSOM1odb<5ZPrtqVq<)$~@N{BCk6LSa*nAcXUU3=C?(<BORCR
zBcH6Tt;KqZ^PMsM$lH{oJBs@0TiP(U5nj)6W_h~JOzl;zXzaK|l3Hgh=?nAKSdY*B
zqN}l9pV@Qn^I7lcs(#r{9`2B($ty!#ZWz&+%+Z5Vq~rlEM$Zs)FoqjNNc0p%mT<#~
z-X^)PC|pLfPmgM<(&15^A4#QC`_ua$IY=kZqQvn-h8=i~$IhL8q&|=hJlk3H1@SX&
zauo(<v-p)VZ#o8!&rXbS{)76w=%Xb!&smy4jz6HIg9856_9GddGx>2h9tk`7t1Bki
z2ux<_Vh6sdvyGw`dw4mHs&P_{0p3>_LCYHXbitt9u4J9s{dFzE*j?C8Z3}%-rIC!%
z;+Qrm;?3R%)w+45y@wZZAN89``v42vvkkNT8^{P=P}&cgjfa>+uEl4EK7_t<i?7<^
z6Yl#MR>$KUH5_7Hgh@A!Gm}2v9s~W#lEMHUW)b%yvO;J}D^ruYHrh#iuEaLRmF(Nu
zRXa54E>ug_VN5R1ELSX_H66t<Oy!GKAwYK753Dj$g~0V-2bPx$Y}fJO=8HaZ9`C_~
z6FfG8>73_V7<bOwp6iq?C%|~k4v@E;!V)HPwu5u73){CHKftM~6WC?zm|LzeT;49(
z!Sd07_bOivtooLzIw&P5yJUG;%R6ru$gk`dT(4y3>(NqH&5}ggOqI^1PcMA&&R;)G
zel$1x+wUL$@`Tv62s9(XL5uUKbz|4gc&yzpc5>#`&~_!-V`3!I*e$naMo&KL<tis#
zXS`OhDw6TclILFVwfI*rKR?$ua$VjmVY@Ndkbqkvn;Uww)OgPUXO6kvc+FBpQMp)F
zYM~_08h-)z!ptb?|2fDL3qIReY0W=;OQmmP7o7Zd%x8d$x@cj$sE<&XLl$Q^j^h-i
z2~6Q6^$CtoQkM2@<j-63lx=QD>IQj+n!+mU7)Om!bMP3)=6lj&OkQ!wPYf`qp1c`)
zbF}*O=MWI*Qj_*NK8xJomKr$)MA@`2-X_xb3X?{fZ-R3iN08?T>?9+N&!~$sKNeR9
z+y(0D4L12IYX4<sn^QR1+hpITFb(EojNqf7cvM<=3O3C*ytdA5j#!WAja<@55!2{`
zj}b4`2o%=g-lZl6wpuM!k$)e+km7QJ*hPhutSVSmY!<PkP$qF9=M7v~-36{IbDf8m
z7*U$Zo<S!$Ox0sZb%jGCU(uv$U>1@|$R$NfO<Cpqq`uQ!@A5rgWo?3{48lD^-mRF;
a)e$cD+FdGOhW|af9=!|hp8G#pfqwwa$wGqw

literal 0
HcmV?d00001