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8217564: idempotent protection missing in crc32c.h

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Added include guard to crc32c.h

Reviewed-by: dcubed
This commit is contained in:
David Buck 2019-03-22 09:05:06 -04:00
parent 5fdcdaadd4
commit 77c942940f
1 changed files with 6 additions and 1 deletions
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7
src/hotspot/cpu/x86/crc32c.h
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2019, 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
@ -22,6 +22,9 @@
*
*/
#ifndef CPU_X86_CRC32C_H
#define CPU_X86_CRC32C_H
enum {
// S. Gueron / Information Processing Letters 112 (2012) 184
// shows than anything above 6K and below 32K is a good choice
@ -64,3 +67,5 @@ enum {
// a) constants table generation (hotspot/src/cpu/x86/vm/stubRoutines_x86.cpp)
// b) constant fetch from that table (macroAssembler_x86.cpp)
// c) unrolled for loop (macroAssembler_x86.cpp)
#endif /* !CPU_X86_CRC32C_H */