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package jdk.vm.ci.hotspot.aarch64;

import jdk.vm.ci.hotspot.HotSpotVMConfigAccess;
import jdk.vm.ci.hotspot.HotSpotVMConfigStore;
import jdk.vm.ci.services.Services;

Used to access native configuration details. All non-static, public fields in this class are so that they can be compiled as constants.
/** * Used to access native configuration details. * * All non-static, public fields in this class are so that they can be compiled as constants. */
class AArch64HotSpotVMConfig extends HotSpotVMConfigAccess { AArch64HotSpotVMConfig(HotSpotVMConfigStore config) { super(config); } final boolean linuxOs = Services.getSavedProperty("os.name", "").startsWith("Linux"); final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class); // CPU Capabilities /* * 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); final boolean useBlockZeroing = getFlag("UseBlockZeroing", Boolean.class); final long vmVersionFeatures = getFieldValue("Abstract_VM_Version::_features", Long.class, "uint64_t"); /* * These flags are set if the corresponding support is in the hardware. */ // Checkstyle: stop final long aarch64FP = getConstant("VM_Version::CPU_FP", Long.class); final long aarch64ASIMD = getConstant("VM_Version::CPU_ASIMD", Long.class); final long aarch64EVTSTRM = getConstant("VM_Version::CPU_EVTSTRM", Long.class); final long aarch64AES = getConstant("VM_Version::CPU_AES", Long.class); final long aarch64PMULL = getConstant("VM_Version::CPU_PMULL", Long.class); final long aarch64SHA1 = getConstant("VM_Version::CPU_SHA1", Long.class); final long aarch64SHA2 = getConstant("VM_Version::CPU_SHA2", Long.class); final long aarch64CRC32 = getConstant("VM_Version::CPU_CRC32", Long.class); final long aarch64LSE = getConstant("VM_Version::CPU_LSE", Long.class); final long aarch64STXR_PREFETCH = getConstant("VM_Version::CPU_STXR_PREFETCH", Long.class); final long aarch64A53MAC = getConstant("VM_Version::CPU_A53MAC", Long.class); // Checkstyle: resume }