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/*
* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @summary Support BMI2 instructions on x86/x64
*
* @run main/othervm -Xbatch -XX:-TieredCompilation -XX:+UnlockDiagnosticVMOptions -XX:+AbortVMOnCompilationFailure
* -XX:CompileCommand=dontinline,compiler.codegen.BMI2$BMITests::*
* compiler.codegen.BMI2
*/
package compiler.codegen;
public class BMI2 {
private final static int ITERATIONS = 30000;
// match(Set dst (ConvI2L (AndI src1 mask)))
public static void testBzhiI2L(int ix) {
long[] goldv = new long[16];
for (int i = 0; i <= 15; i++) {
goldv[i] = BMITests.bzhiI2L(ix, i);
}
for (int i2 = 0; i2 < ITERATIONS; i2++) {
for (int i = 0; i <= 15; i++) {
long v = BMITests.bzhiI2L(ix, i);
if (v != goldv[i]) {
throw new Error(returnBzhiI2LErrMessage (goldv[i], v));
}
}
}
}
private static String returnBzhiI2LErrMessage (long value, long value2) {
return "bzhi I2L with register failed, uncompiled result: " + value + " does not match compiled result: " + value2;
}
static class BMITests {
static long bzhiI2L(int src1, int src2) {
switch(src2) {
case 0:
return (long)(src1 & 0x1);
case 1:
return (long)(src1 & 0x3);
case 2:
return (long)(src1 & 0x7);
case 3:
return (long)(src1 & 0xF);
case 4:
return (long)(src1 & 0x1F);
case 5:
return (long)(src1 & 0x3F);
case 6:
return (long)(src1 & 0x7F);
case 7:
return (long)(src1 & 0xFF);
case 8:
return (long)(src1 & 0x1FF);
case 9:
return (long)(src1 & 0x3FF);
case 10:
return (long)(src1 & 0x7FF);
case 11:
return (long)(src1 & 0xFFF);
case 12:
return (long)(src1 & 0x1FFF);
case 13:
return (long)(src1 & 0x3FFF);
case 14:
return (long)(src1 & 0x7FFF);
case 15:
return (long)(src1 & 0xFFFF);
default:
return (long)(src1 & 0xFFFF);
}
}
}
public static void main(String[] args) {
testBzhiI2L(0);
testBzhiI2L(1);
}
}
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