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8250902: Implement MD5 Intrinsics on x86

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Reviewed-by: kvn, vdeshpande, ascarpino
This commit is contained in:
Ludovic Henry 2020-08-05 11:32:15 -07:00 • committed by Vladimir Kozlov
parent 13946835b5
commit 339016a0f2
53 changed files with 1110 additions and 388 deletions
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25
src/java.base/share/classes/sun/security/provider/MD5.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1996, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1996, 2020, 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
@ -26,8 +26,10 @@
package sun.security.provider;
import java.util.Arrays;
import java.util.Objects;
import static sun.security.provider.ByteArrayAccess.*;
import jdk.internal.HotSpotIntrinsicCandidate;
/**
* The MD5 class is used to compute an MD5 message digest over a given
@ -147,8 +149,27 @@ public final class MD5 extends DigestBase {
* bytes from the buffer, beginning at the specified offset.
*/
void implCompress(byte[] buf, int ofs) {
b2iLittle64(buf, ofs, x);
implCompressCheck(buf, ofs);
implCompress0(buf, ofs);
}
private void implCompressCheck(byte[] buf, int ofs) {
Objects.requireNonNull(buf);
// The checks performed by the method 'b2iBig64'
// are sufficient for the case when the method
// 'implCompressImpl' is replaced with a compiler
// intrinsic.
b2iLittle64(buf, ofs, x);
}
// The method 'implCompress0 seems not to use its parameters.
// The method can, however, be replaced with a compiler intrinsic
// that operates directly on the array 'buf' (starting from
// offset 'ofs') and not on array 'x', therefore 'buf' and 'ofs'
// must be passed as parameter to the method.
@HotSpotIntrinsicCandidate
void implCompress0(byte[] buf, int ofs) {
int a = state[0];
int b = state[1];
int c = state[2];

6
src/java.base/share/classes/sun/security/provider/SHA.java
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 1996, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1996, 2020, 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
@ -134,12 +134,12 @@ public final class SHA extends DigestBase {
// The checks performed by the method 'b2iBig64'
// are sufficient for the case when the method
// 'implCompressImpl' is replaced with a compiler
// 'implCompress0' is replaced with a compiler
// intrinsic.
b2iBig64(buf, ofs, W);
}
// The method 'implCompressImpl seems not to use its parameters.
// The method 'implCompress0 seems not to use its parameters.
// The method can, however, be replaced with a compiler intrinsic
// that operates directly on the array 'buf' (starting from
// offset 'ofs') and not on array 'W', therefore 'buf' and 'ofs'