22 */
23 package jdk.vm.ci.hotspot.aarch64;
24
25 import jdk.vm.ci.hotspot.HotSpotVMConfigAccess;
26 import jdk.vm.ci.hotspot.HotSpotVMConfigStore;
27
28 /**
29 * Used to access native configuration details.
30 *
31 * All non-static, public fields in this class are so that they can be compiled as constants.
32 */
33 class AArch64HotSpotVMConfig extends HotSpotVMConfigAccess {
34
35 AArch64HotSpotVMConfig(HotSpotVMConfigStore config) {
36 super(config);
37 }
38
39 final boolean linuxOs = System.getProperty("os.name", "").startsWith("Linux");
40
41 final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
42 }
|
22 */
23 package jdk.vm.ci.hotspot.aarch64;
24
25 import jdk.vm.ci.hotspot.HotSpotVMConfigAccess;
26 import jdk.vm.ci.hotspot.HotSpotVMConfigStore;
27
28 /**
29 * Used to access native configuration details.
30 *
31 * All non-static, public fields in this class are so that they can be compiled as constants.
32 */
33 class AArch64HotSpotVMConfig extends HotSpotVMConfigAccess {
34
35 AArch64HotSpotVMConfig(HotSpotVMConfigStore config) {
36 super(config);
37 }
38
39 final boolean linuxOs = System.getProperty("os.name", "").startsWith("Linux");
40
41 final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);
42
43 // CPU Capabilities
44
45 /*
46 * These flags are set based on the corresponding command line flags.
47 */
48 final boolean useBarriersForVolatile = getFlag("UseBarriersForVolatile", Boolean.class);
49 final boolean useCRC32 = getFlag("UseCRC32", Boolean.class);
50 final boolean useNeon = getFlag("UseNeon", Boolean.class);
51 final boolean useSIMDForMemoryOps = getFlag("UseSIMDForMemoryOps", Boolean.class);
52 final boolean avoidUnalignedAccesses = getFlag("AvoidUnalignedAccesses", Boolean.class);
53 final boolean useLSE = getFlag("UseLSE", Boolean.class);
54 final boolean useBlockZeroing = getFlag("UseBlockZeroing", Boolean.class);
55
56 final long vmVersionFeatures = getFieldValue("Abstract_VM_Version::_features", Long.class, "uint64_t");
57
58 /*
59 * These flags are set if the corresponding support is in the hardware.
60 */
61 final long aarch64FP = getConstant("VM_Version::CPU_FP", Long.class);
62 final long aarch64ASIMD = getConstant("VM_Version::CPU_ASIMD", Long.class);
63 final long aarch64EVTSTRM = getConstant("VM_Version::CPU_EVTSTRM", Long.class);
64 final long aarch64AES = getConstant("VM_Version::CPU_AES", Long.class);
65 final long aarch64PMULL = getConstant("VM_Version::CPU_PMULL", Long.class);
66 final long aarch64SHA1 = getConstant("VM_Version::CPU_SHA1", Long.class);
67 final long aarch64SHA2 = getConstant("VM_Version::CPU_SHA2", Long.class);
68 final long aarch64CRC32 = getConstant("VM_Version::CPU_CRC32", Long.class);
69 final long aarch64LSE = getConstant("VM_Version::CPU_LSE", Long.class);
70 final long aarch64STXR_PREFETCH = getConstant("VM_Version::CPU_STXR_PREFETCH", Long.class);
71 final long aarch64A53MAC = getConstant("VM_Version::CPU_A53MAC", Long.class);
72 final long aarch64DMB_ATOMICS = getConstant("VM_Version::CPU_DMB_ATOMICS", Long.class);
73 }
|