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/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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.
*/
/**
* Tests for MIN/MAX vectorization.
*/
public class Main {
/// CHECK-START: void Main.doitMin(char[], char[], char[]) loop_optimization (before)
/// CHECK-DAG: <<Phi:i\d+>> Phi loop:<<Loop:B\d+>> outer_loop:none
/// CHECK-DAG: <<Get1:c\d+>> ArrayGet loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Get2:c\d+>> ArrayGet loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Min:i\d+>> InvokeStaticOrDirect [<<Get1>>,<<Get2>>] intrinsic:MathMinIntInt loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Cnv:c\d+>> TypeConversion [<<Min>>] loop:<<Loop>> outer_loop:none
/// CHECK-DAG: ArraySet [{{l\d+}},<<Phi>>,<<Cnv>>] loop:<<Loop>> outer_loop:none
//
/// CHECK-START-ARM64: void Main.doitMin(char[], char[], char[]) loop_optimization (after)
/// CHECK-DAG: <<Phi:i\d+>> Phi loop:<<Loop:B\d+>> outer_loop:none
/// CHECK-DAG: <<Get1:d\d+>> VecLoad loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Get2:d\d+>> VecLoad loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Min:d\d+>> VecMin [<<Get1>>,<<Get2>>] unsigned:true loop:<<Loop>> outer_loop:none
/// CHECK-DAG: VecStore [{{l\d+}},<<Phi>>,<<Min>>] loop:<<Loop>> outer_loop:none
//
/// CHECK-START-MIPS64: void Main.doitMin(char[], char[], char[]) loop_optimization (after)
/// CHECK-DAG: <<Phi:i\d+>> Phi loop:<<Loop:B\d+>> outer_loop:none
/// CHECK-DAG: <<Get1:d\d+>> VecLoad loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Get2:d\d+>> VecLoad loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Min:d\d+>> VecMin [<<Get1>>,<<Get2>>] unsigned:true loop:<<Loop>> outer_loop:none
/// CHECK-DAG: VecStore [{{l\d+}},<<Phi>>,<<Min>>] loop:<<Loop>> outer_loop:none
private static void doitMin(char[] x, char[] y, char[] z) {
int min = Math.min(x.length, Math.min(y.length, z.length));
for (int i = 0; i < min; i++) {
x[i] = (char) Math.min(y[i], z[i]);
}
}
/// CHECK-START: void Main.doitMax(char[], char[], char[]) loop_optimization (before)
/// CHECK-DAG: <<Phi:i\d+>> Phi loop:<<Loop:B\d+>> outer_loop:none
/// CHECK-DAG: <<Get1:c\d+>> ArrayGet loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Get2:c\d+>> ArrayGet loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Max:i\d+>> InvokeStaticOrDirect [<<Get1>>,<<Get2>>] intrinsic:MathMaxIntInt loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Cnv:c\d+>> TypeConversion [<<Max>>] loop:<<Loop>> outer_loop:none
/// CHECK-DAG: ArraySet [{{l\d+}},<<Phi>>,<<Cnv>>] loop:<<Loop>> outer_loop:none
//
/// CHECK-START-ARM64: void Main.doitMax(char[], char[], char[]) loop_optimization (after)
/// CHECK-DAG: <<Phi:i\d+>> Phi loop:<<Loop:B\d+>> outer_loop:none
/// CHECK-DAG: <<Get1:d\d+>> VecLoad loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Get2:d\d+>> VecLoad loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Max:d\d+>> VecMax [<<Get1>>,<<Get2>>] unsigned:true loop:<<Loop>> outer_loop:none
/// CHECK-DAG: VecStore [{{l\d+}},<<Phi>>,<<Max>>] loop:<<Loop>> outer_loop:none
//
/// CHECK-START-MIPS64: void Main.doitMax(char[], char[], char[]) loop_optimization (after)
/// CHECK-DAG: <<Phi:i\d+>> Phi loop:<<Loop:B\d+>> outer_loop:none
/// CHECK-DAG: <<Get1:d\d+>> VecLoad loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Get2:d\d+>> VecLoad loop:<<Loop>> outer_loop:none
/// CHECK-DAG: <<Max:d\d+>> VecMax [<<Get1>>,<<Get2>>] unsigned:true loop:<<Loop>> outer_loop:none
/// CHECK-DAG: VecStore [{{l\d+}},<<Phi>>,<<Max>>] loop:<<Loop>> outer_loop:none
private static void doitMax(char[] x, char[] y, char[] z) {
int min = Math.min(x.length, Math.min(y.length, z.length));
for (int i = 0; i < min; i++) {
x[i] = (char) Math.max(y[i], z[i]);
}
}
public static void main(String[] args) {
char[] interesting = {
0x0000, 0x0001, 0x007f, 0x0080, 0x0081, 0x00ff,
0x0100, 0x0101, 0x017f, 0x0180, 0x0181, 0x01ff,
0x7f00, 0x7f01, 0x7f7f, 0x7f80, 0x7f81, 0x7fff,
0x8000, 0x8001, 0x807f, 0x8080, 0x8081, 0x80ff,
0x8100, 0x8101, 0x817f, 0x8180, 0x8181, 0x81ff,
0xff00, 0xff01, 0xff7f, 0xff80, 0xff81, 0xffff
};
// Initialize cross-values for the interesting values.
int total = interesting.length * interesting.length;
char[] x = new char[total];
char[] y = new char[total];
char[] z = new char[total];
int k = 0;
for (int i = 0; i < interesting.length; i++) {
for (int j = 0; j < interesting.length; j++) {
x[k] = 0;
y[k] = interesting[i];
z[k] = interesting[j];
k++;
}
}
// And test.
doitMin(x, y, z);
for (int i = 0; i < total; i++) {
char expected = (char) Math.min(y[i], z[i]);
expectEquals(expected, x[i]);
}
doitMax(x, y, z);
for (int i = 0; i < total; i++) {
char expected = (char) Math.max(y[i], z[i]);
expectEquals(expected, x[i]);
}
System.out.println("passed");
}
private static void expectEquals(char expected, char result) {
if (expected != result) {
throw new Error("Expected: " + expected + ", found: " + result);
}
}
}
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