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src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspot.amd64/src/jdk/vm/ci/hotspot/amd64/AMD64HotSpotRegisterConfig.java
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@@ -40,20 +40,19 @@
import static jdk.vm.ci.amd64.AMD64.xmm5;
import static jdk.vm.ci.amd64.AMD64.xmm6;
import static jdk.vm.ci.amd64.AMD64.xmm7;
import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import jdk.vm.ci.code.Architecture;
import jdk.vm.ci.code.CallingConvention;
import jdk.vm.ci.code.CallingConvention.Type;
import jdk.vm.ci.code.Register;
+import jdk.vm.ci.code.RegisterArray;
import jdk.vm.ci.code.RegisterAttributes;
import jdk.vm.ci.code.RegisterConfig;
import jdk.vm.ci.code.StackSlot;
import jdk.vm.ci.code.TargetDescription;
import jdk.vm.ci.code.ValueKindFactory;
@@ -68,60 +67,60 @@
public class AMD64HotSpotRegisterConfig implements RegisterConfig {
private final TargetDescription target;
- private final Register[] allocatable;
+ private final RegisterArray allocatable;
/**
* The caller saved registers always include all parameter registers.
*/
- private final Register[] callerSaved;
+ private final RegisterArray callerSaved;
private final boolean allAllocatableAreCallerSaved;
private final RegisterAttributes[] attributesMap;
@Override
- public Register[] getAllocatableRegisters() {
- return allocatable.clone();
+ public RegisterArray getAllocatableRegisters() {
+ return allocatable;
}
@Override
- public Register[] filterAllocatableRegisters(PlatformKind kind, Register[] registers) {
+ public RegisterArray filterAllocatableRegisters(PlatformKind kind, RegisterArray registers) {
ArrayList<Register> list = new ArrayList<>();
for (Register reg : registers) {
if (target.arch.canStoreValue(reg.getRegisterCategory(), kind)) {
list.add(reg);
}
}
- Register[] ret = list.toArray(new Register[list.size()]);
+ RegisterArray ret = new RegisterArray(list);
return ret;
}
@Override
public RegisterAttributes[] getAttributesMap() {
return attributesMap.clone();
}
- private final Register[] javaGeneralParameterRegisters;
- private final Register[] nativeGeneralParameterRegisters;
- private final Register[] xmmParameterRegisters = {xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7};
+ private final RegisterArray javaGeneralParameterRegisters;
+ private final RegisterArray nativeGeneralParameterRegisters;
+ private final RegisterArray xmmParameterRegisters = new RegisterArray(xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7);
/*
* Some ABIs (e.g. Windows) require a so-called "home space", that is a save area on the stack
* to store the argument registers
*/
private final boolean needsNativeStackHomeSpace;
- private static final Register[] reservedRegisters = {rsp, r15};
+ private static final RegisterArray reservedRegisters = new RegisterArray(rsp, r15);
- private static Register[] initAllocatable(Architecture arch, boolean reserveForHeapBase) {
- Register[] allRegisters = arch.getAvailableValueRegisters();
- Register[] registers = new Register[allRegisters.length - reservedRegisters.length - (reserveForHeapBase ? 1 : 0)];
- List<Register> reservedRegistersList = Arrays.asList(reservedRegisters);
+ private static RegisterArray initAllocatable(Architecture arch, boolean reserveForHeapBase) {
+ RegisterArray allRegisters = arch.getAvailableValueRegisters();
+ Register[] registers = new Register[allRegisters.size() - reservedRegisters.size() - (reserveForHeapBase ? 1 : 0)];
+ List<Register> reservedRegistersList = reservedRegisters.asList();
int idx = 0;
for (Register reg : allRegisters) {
if (reservedRegistersList.contains(reg)) {
// skip reserved registers
@@ -134,50 +133,50 @@
registers[idx++] = reg;
}
assert idx == registers.length;
- return registers;
+ return new RegisterArray(registers);
}
public AMD64HotSpotRegisterConfig(TargetDescription target, boolean useCompressedOops, boolean windowsOs) {
this(target, initAllocatable(target.arch, useCompressedOops), windowsOs);
- assert callerSaved.length >= allocatable.length;
+ assert callerSaved.size() >= allocatable.size();
}
- public AMD64HotSpotRegisterConfig(TargetDescription target, Register[] allocatable, boolean windowsOs) {
+ public AMD64HotSpotRegisterConfig(TargetDescription target, RegisterArray allocatable, boolean windowsOs) {
this.target = target;
if (windowsOs) {
- javaGeneralParameterRegisters = new Register[]{rdx, r8, r9, rdi, rsi, rcx};
- nativeGeneralParameterRegisters = new Register[]{rcx, rdx, r8, r9};
+ javaGeneralParameterRegisters = new RegisterArray(rdx, r8, r9, rdi, rsi, rcx);
+ nativeGeneralParameterRegisters = new RegisterArray(rcx, rdx, r8, r9);
this.needsNativeStackHomeSpace = true;
} else {
- javaGeneralParameterRegisters = new Register[]{rsi, rdx, rcx, r8, r9, rdi};
- nativeGeneralParameterRegisters = new Register[]{rdi, rsi, rdx, rcx, r8, r9};
+ javaGeneralParameterRegisters = new RegisterArray(rsi, rdx, rcx, r8, r9, rdi);
+ nativeGeneralParameterRegisters = new RegisterArray(rdi, rsi, rdx, rcx, r8, r9);
this.needsNativeStackHomeSpace = false;
}
this.allocatable = allocatable;
Set<Register> callerSaveSet = new HashSet<>();
- Collections.addAll(callerSaveSet, allocatable);
- Collections.addAll(callerSaveSet, xmmParameterRegisters);
- Collections.addAll(callerSaveSet, javaGeneralParameterRegisters);
- Collections.addAll(callerSaveSet, nativeGeneralParameterRegisters);
- callerSaved = callerSaveSet.toArray(new Register[callerSaveSet.size()]);
+ allocatable.addTo(callerSaveSet);
+ xmmParameterRegisters.addTo(callerSaveSet);
+ callerSaveSet.addAll(javaGeneralParameterRegisters.asList());
+ nativeGeneralParameterRegisters.addTo(callerSaveSet);
+ callerSaved = new RegisterArray(callerSaveSet);
allAllocatableAreCallerSaved = true;
attributesMap = RegisterAttributes.createMap(this, target.arch.getRegisters());
}
@Override
- public Register[] getCallerSaveRegisters() {
+ public RegisterArray getCallerSaveRegisters() {
return callerSaved;
}
@Override
- public Register[] getCalleeSaveRegisters() {
+ public RegisterArray getCalleeSaveRegisters() {
return null;
}
@Override
public boolean areAllAllocatableRegistersCallerSaved() {
@@ -194,11 +193,11 @@
// from the caller or callee perspective
return callingConvention(javaGeneralParameterRegisters, returnType, parameterTypes, hotspotType, valueKindFactory);
}
@Override
- public Register[] getCallingConventionRegisters(Type type, JavaKind kind) {
+ public RegisterArray getCallingConventionRegisters(Type type, JavaKind kind) {
HotSpotCallingConventionType hotspotType = (HotSpotCallingConventionType) type;
switch (kind) {
case Boolean:
case Byte:
case Short:
@@ -213,17 +212,17 @@
default:
throw JVMCIError.shouldNotReachHere();
}
}
- private CallingConvention callingConvention(Register[] generalParameterRegisters, JavaType returnType, JavaType[] parameterTypes, HotSpotCallingConventionType type,
+ private CallingConvention callingConvention(RegisterArray generalParameterRegisters, JavaType returnType, JavaType[] parameterTypes, HotSpotCallingConventionType type,
ValueKindFactory<?> valueKindFactory) {
AllocatableValue[] locations = new AllocatableValue[parameterTypes.length];
int currentGeneral = 0;
int currentXMM = 0;
- int currentStackOffset = type == HotSpotCallingConventionType.NativeCall && needsNativeStackHomeSpace ? generalParameterRegisters.length * target.wordSize : 0;
+ int currentStackOffset = type == HotSpotCallingConventionType.NativeCall && needsNativeStackHomeSpace ? generalParameterRegisters.size() * target.wordSize : 0;
for (int i = 0; i < parameterTypes.length; i++) {
final JavaKind kind = parameterTypes[i].getJavaKind().getStackKind();
switch (kind) {
@@ -232,19 +231,19 @@
case Short:
case Char:
case Int:
case Long:
case Object:
- if (currentGeneral < generalParameterRegisters.length) {
- Register register = generalParameterRegisters[currentGeneral++];
+ if (currentGeneral < generalParameterRegisters.size()) {
+ Register register = generalParameterRegisters.get(currentGeneral++);
locations[i] = register.asValue(valueKindFactory.getValueKind(kind));
}
break;
case Float:
case Double:
- if (currentXMM < xmmParameterRegisters.length) {
- Register register = xmmParameterRegisters[currentXMM++];
+ if (currentXMM < xmmParameterRegisters.size()) {
+ Register register = xmmParameterRegisters.get(currentXMM++);
locations[i] = register.asValue(valueKindFactory.getValueKind(kind));
}
break;
default:
throw JVMCIError.shouldNotReachHere();
@@ -289,8 +288,8 @@
return rsp;
}
@Override
public String toString() {
- return String.format("Allocatable: " + Arrays.toString(getAllocatableRegisters()) + "%n" + "CallerSave: " + Arrays.toString(getCallerSaveRegisters()) + "%n");
+ return String.format("Allocatable: " + getAllocatableRegisters() + "%n" + "CallerSave: " + getCallerSaveRegisters() + "%n");
}
}
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