src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.aarch64/src/org/graalvm/compiler/hotspot/aarch64/AArch64HotSpotLoadConfigValueOp.java
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package org.graalvm.compiler.hotspot.aarch64;
import static org.graalvm.compiler.core.common.GraalOptions.GeneratePIC;
import static jdk.vm.ci.code.ValueUtil.asRegister;
import jdk.vm.ci.aarch64.AArch64Kind;
import jdk.vm.ci.code.Register;
import jdk.vm.ci.meta.AllocatableValue;
import org.graalvm.compiler.asm.aarch64.AArch64Address;
import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
import org.graalvm.compiler.debug.GraalError;
import org.graalvm.compiler.lir.LIRInstructionClass;
import org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction;
import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
public final class AArch64HotSpotLoadConfigValueOp extends AArch64LIRInstruction {
public static final LIRInstructionClass<AArch64HotSpotLoadConfigValueOp> TYPE = LIRInstructionClass.create(AArch64HotSpotLoadConfigValueOp.class);
@Def({OperandFlag.REG}) protected AllocatableValue result;
private final int markId;
public AArch64HotSpotLoadConfigValueOp(int markId, AllocatableValue result) {
super(TYPE);
this.result = result;
this.markId = markId;
}
@Override
public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) {
if (GeneratePIC.getValue(crb.getOptions())) {
AArch64Kind kind = (AArch64Kind) result.getPlatformKind();
Register reg = asRegister(result);
masm.adrp(reg);
masm.add(64, reg, reg, 1);
switch (kind) {
case BYTE:
masm.ldrs(8, 32, reg, AArch64Address.createBaseRegisterOnlyAddress(reg));
break;
case WORD:
masm.ldrs(16, 32, reg, AArch64Address.createBaseRegisterOnlyAddress(reg));
break;
case DWORD:
masm.ldr(32, reg, AArch64Address.createBaseRegisterOnlyAddress(reg));
break;
case QWORD:
masm.ldr(64, reg, AArch64Address.createBaseRegisterOnlyAddress(reg));
break;
default:
throw GraalError.unimplemented();
}
masm.nop();
} else {
throw GraalError.unimplemented();
}
crb.recordMark(markId);
}
}