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/*
* Copyright (c) 2018, 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
* @bug 4169183
* @summary Check for correct inlining by the interpreter (widefp and strictfp).
* The default is widefp. A strictfp method was getting inlined
* into a widefp method.
*/
import java.io.PrintStream;
public class WideStrictInline {
static PrintStream out;
static float halfUlp;
static {
halfUlp = 1;
for ( int i = 127 - 24; i > 0; i-- )
halfUlp *= 2;
}
public static void main(String argv[]) throws Exception {
out = System.err;
pr(-1,"halfUlp",halfUlp);
WideStrictInline obj = new WideStrictInline();
for( int i=0; i<48; i++ )
obj.instanceMethod( i );
}
private static void pr(int i, String desc, float r) {
out.print(" i=("+i+") "+desc+" ; == "+r);
out.println(" , 0x"+Integer.toHexString(Float.floatToIntBits(r)));
}
private static strictfp float WideStrictInline(float par) {
return par;
}
public static strictfp float strictValue(int i) {
float r;
switch (i%4) {
case 0: r = -Float.MAX_VALUE; break;
case 1: r = Float.MAX_VALUE; break;
case 2: r = Float.MIN_VALUE; break;
default : r = 1L << 24;
}
return r;
}
void instanceMethod (int i) throws Exception {
float r;
switch (i%4) {
case 0:
if (!Float.isInfinite( WideStrictInline(strictValue(i)*2) +
Float.MAX_VALUE ))
{
pr(i,
"WideStrictInline(-Float.MAX_VALUE * 2) " +
"!= Float.NEGATIVE_INFINITY"
,WideStrictInline(strictValue(i)*2) + Float.MAX_VALUE);
}
r = WideStrictInline(strictValue(i)*2) + Float.MAX_VALUE;
if ( !Float.isInfinite( r ) ) {
pr(i,"r != Float.NEGATIVE_INFINITY",r);
throw new RuntimeException();
}
break;
case 1:
if (!Float.isInfinite(WideStrictInline(strictValue(i)+halfUlp) -
Float.MAX_VALUE )) {
pr(i,"WideStrictInline(Float.MAX_VALUE+halfUlp) " +
"!= Float.POSITIVE_INFINITY"
,WideStrictInline(strictValue(i)+halfUlp) - Float.MAX_VALUE);
}
r = WideStrictInline(strictValue(i)+halfUlp) - Float.MAX_VALUE;
if ( !Float.isInfinite( r ) ) {
pr(i,"r != Float.POSITIVE_INFINITY",r);
throw new RuntimeException();
}
break;
case 2:
if (WideStrictInline(strictValue(i)/2) != 0) {
pr(i,"WideStrictInline(Float.MIN_VALUE/2) != 0",
WideStrictInline(strictValue(i)/2));
}
r = WideStrictInline(strictValue(i)/2);
if ( r != 0 ) {
pr(i,"r != 0",r);
throw new RuntimeException();
}
break;
default:
if (WideStrictInline(strictValue(i)-0.5f) - strictValue(i) != 0) {
pr(i,"WideStrictInline(2^24-0.5) != 2^24",
WideStrictInline(strictValue(i)-0.5f));
}
r = WideStrictInline(strictValue(i)-0.5f);
if ( r - strictValue(i) != 0 ) {
pr(i,"r != 2^24",r);
throw new RuntimeException();
}
}
}
}
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