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8329749: Obsolete the unused UseNeon flag

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Reviewed-by: chagedorn, kvn, aph
This commit is contained in:
Tobias Hartmann 2024-04-08 11:35:49 +00:00
parent fc18201bbd
commit 8648890f86
5 changed files with 3 additions and 9 deletions
src
hotspot
cpu/aarch64
globals_aarch64.hpp
share/runtime
arguments.cpp
jdk.internal.vm.ci/share/classes/jdk/vm/ci
aarch64
AArch64.java
hotspot/aarch64
AArch64HotSpotJVMCIBackendFactory.javaAArch64HotSpotVMConfig.java

2
src/hotspot/cpu/aarch64/globals_aarch64.hpp

@ -85,8 +85,6 @@ define_pd_global(intx, InlineSmallCode, 1000);
\
product(bool, NearCpool, true, \
"constant pool is close to instructions") \
product(bool, UseNeon, false, \
"Use Neon for CRC32 computation") \
product(bool, UseCRC32, false, \
"Use CRC32 instructions for CRC32 computation") \
product(bool, UseCryptoPmullForCRC32, false, \

1
src/hotspot/share/runtime/arguments.cpp

@ -537,6 +537,7 @@ static SpecialFlag const special_jvm_flags[] = {
{ "ParallelOldDeadWoodLimiterMean", JDK_Version::undefined(), JDK_Version::jdk(23), JDK_Version::jdk(24) },
{ "ParallelOldDeadWoodLimiterStdDev", JDK_Version::undefined(), JDK_Version::jdk(23), JDK_Version::jdk(24) },
{ "UseNeon", JDK_Version::undefined(), JDK_Version::jdk(23), JDK_Version::jdk(24) },
#ifdef ASSERT
{ "DummyObsoleteTestFlag", JDK_Version::undefined(), JDK_Version::jdk(18), JDK_Version::undefined() },
#endif

1
src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/aarch64/AArch64.java

@ -190,7 +190,6 @@ public class AArch64 extends Architecture {
*/
public enum Flag {
UseCRC32,
UseNeon,
UseSIMDForMemoryOps,
AvoidUnalignedAccesses,
UseLSE,

5
src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/aarch64/AArch64HotSpotJVMCIBackendFactory.java

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2021, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2024, 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
@ -58,9 +58,6 @@ public class AArch64HotSpotJVMCIBackendFactory implements HotSpotJVMCIBackendFac
if (config.useCRC32) {
flags.add(AArch64.Flag.UseCRC32);
}
if (config.useNeon) {
flags.add(AArch64.Flag.UseNeon);
}
if (config.useSIMDForMemoryOps) {
flags.add(AArch64.Flag.UseSIMDForMemoryOps);
}

3
src/jdk.internal.vm.ci/share/classes/jdk/vm/ci/hotspot/aarch64/AArch64HotSpotVMConfig.java

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2016, 2024, 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
@ -44,7 +44,6 @@ class AArch64HotSpotVMConfig extends HotSpotVMConfigAccess {
* These flags are set based on the corresponding command line flags.
*/
final boolean useCRC32 = getFlag("UseCRC32", Boolean.class);
final boolean useNeon = getFlag("UseNeon", Boolean.class);
final boolean useSIMDForMemoryOps = getFlag("UseSIMDForMemoryOps", Boolean.class);
final boolean avoidUnalignedAccesses = getFlag("AvoidUnalignedAccesses", Boolean.class);
final boolean useLSE = getFlag("UseLSE", Boolean.class);