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8243491: Implementation of Foreign-Memory Access API (Second Incubator)

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Upstream latest changes of the Foreign-Memory Access API

Co-authored-by: Jorn Vernee <jorn.vernee@oracle.com>
Co-authored-by: Mandy Chung <mandy.chung@oracle.com>
Co-authored-by: Paul Sandoz <paul.sandoz@oracle.com>
Co-authored-by: Peter Levart <peter.levart@gmail.com>
Reviewed-by: chegar, psandoz
This commit is contained in:
Chris Hegarty 2020-05-25 10:54:39 +01:00 • committed by Maurizio Cimadamore
parent 9b94b9d1a1
commit f3eb44a94d
94 changed files with 7496 additions and 1388 deletions
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23
src/java.base/share/classes/java/lang/invoke/Invokers.java
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@ -365,6 +365,7 @@ class Invokers {
final int ARG_LIMIT = ARG_BASE + mtype.parameterCount();
int nameCursor = ARG_LIMIT;
final int VAD_ARG = nameCursor++;
final int UNBOUND_VH = nameCursor++;
final int CHECK_TYPE = nameCursor++;
final int CHECK_CUSTOM = (CUSTOMIZE_THRESHOLD >= 0) ? nameCursor++ : -1;
final int LINKER_CALL = nameCursor++;
@ -376,11 +377,14 @@ class Invokers {
}
names[VAD_ARG] = new Name(ARG_LIMIT, BasicType.basicType(Object.class));
names[UNBOUND_VH] = new Name(getFunction(NF_directVarHandleTarget), names[THIS_VH]);
names[CHECK_TYPE] = new Name(getFunction(NF_checkVarHandleGenericType), names[THIS_VH], names[VAD_ARG]);
Object[] outArgs = new Object[ARG_LIMIT + 1];
outArgs[0] = names[CHECK_TYPE];
for (int i = 0; i < ARG_LIMIT; i++) {
outArgs[1] = names[UNBOUND_VH];
for (int i = 1; i < ARG_LIMIT; i++) {
outArgs[i + 1] = names[i];
}
@ -411,6 +415,7 @@ class Invokers {
final int ARG_LIMIT = ARG_BASE + mtype.parameterCount();
int nameCursor = ARG_LIMIT;
final int VAD_ARG = nameCursor++;
final int UNBOUND_VH = nameCursor++;
final int CHECK_TYPE = nameCursor++;
final int LINKER_CALL = nameCursor++;
@ -427,6 +432,8 @@ class Invokers {
NamedFunction getter = speciesData.getterFunction(0);
names[VAD_ARG] = new Name(getter, names[THIS_MH]);
names[UNBOUND_VH] = new Name(getFunction(NF_directVarHandleTarget), names[CALL_VH]);
if (isExact) {
names[CHECK_TYPE] = new Name(getFunction(NF_checkVarHandleExactType), names[CALL_VH], names[VAD_ARG]);
} else {
@ -434,7 +441,8 @@ class Invokers {
}
Object[] outArgs = new Object[ARG_LIMIT];
outArgs[0] = names[CHECK_TYPE];
for (int i = 1; i < ARG_LIMIT; i++) {
outArgs[1] = names[UNBOUND_VH];
for (int i = 2; i < ARG_LIMIT; i++) {
outArgs[i] = names[i];
}
@ -520,6 +528,12 @@ class Invokers {
*/
}
@ForceInline
/*non-public*/
static VarHandle directVarHandleTarget(VarHandle handle) {
return handle.asDirect();
}
static MemberName linkToCallSiteMethod(MethodType mtype) {
LambdaForm lform = callSiteForm(mtype, false);
return lform.vmentry;
@ -600,7 +614,8 @@ class Invokers {
NF_checkCustomized = 3,
NF_checkVarHandleGenericType = 4,
NF_checkVarHandleExactType = 5,
NF_LIMIT = 6;
NF_directVarHandleTarget = 6,
NF_LIMIT = 7;
private static final @Stable NamedFunction[] NFS = new NamedFunction[NF_LIMIT];
@ -630,6 +645,8 @@ class Invokers {
return getNamedFunction("checkVarHandleGenericType", MethodType.methodType(MethodHandle.class, VarHandle.class, VarHandle.AccessDescriptor.class));
case NF_checkVarHandleExactType:
return getNamedFunction("checkVarHandleExactType", MethodType.methodType(MethodHandle.class, VarHandle.class, VarHandle.AccessDescriptor.class));
case NF_directVarHandleTarget:
return getNamedFunction("directVarHandleTarget", MethodType.methodType(VarHandle.class, VarHandle.class));
default:
throw newInternalError("Unknown function: " + func);
}