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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
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*
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package org.graalvm.compiler.hotspot.aarch64;
import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.ScratchRegister;
import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
import org.graalvm.compiler.lir.LIRInstructionClass;
import org.graalvm.compiler.lir.aarch64.AArch64BlockEndOp;
import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
import jdk.vm.ci.code.Register;
/**
* Superclass for operations that leave a method's frame.
*/
abstract class AArch64HotSpotEpilogueOp extends AArch64BlockEndOp {
private final GraalHotSpotVMConfig config;
protected AArch64HotSpotEpilogueOp(LIRInstructionClass<? extends AArch64HotSpotEpilogueOp> c, GraalHotSpotVMConfig config) {
super(c);
this.config = config;
}
protected void leaveFrame(CompilationResultBuilder crb, AArch64MacroAssembler masm, boolean emitSafepoint) {
assert crb.frameContext != null : "We never elide frames in aarch64";
crb.frameContext.leave(crb);
if (emitSafepoint) {
try (ScratchRegister sc = masm.getScratchRegister()) {
Register scratch = sc.getRegister();
AArch64HotSpotSafepointOp.emitCode(crb, masm, config, true, scratch, null);
}
}
}
}