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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* 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
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package org.graalvm.compiler.truffle.hotspot.aarch64;
import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.JavaCall;
import static jdk.vm.ci.meta.JavaKind.Object;
import org.graalvm.compiler.asm.Assembler;
import org.graalvm.compiler.asm.Label;
import org.graalvm.compiler.asm.aarch64.AArch64Address;
import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.ScratchRegister;
import org.graalvm.compiler.code.CompilationResult;
import org.graalvm.compiler.core.common.spi.ForeignCallsProvider;
import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
import org.graalvm.compiler.lir.asm.DataBuilder;
import org.graalvm.compiler.lir.asm.FrameContext;
import org.graalvm.compiler.lir.framemap.FrameMap;
import org.graalvm.compiler.options.OptionValues;
import org.graalvm.compiler.serviceprovider.ServiceProvider;
import org.graalvm.compiler.truffle.hotspot.OptimizedCallTargetInstrumentation;
import org.graalvm.compiler.truffle.hotspot.OptimizedCallTargetInstrumentationFactory;
import jdk.vm.ci.code.CodeCacheProvider;
import jdk.vm.ci.code.InstalledCode;
import jdk.vm.ci.code.Register;
@ServiceProvider(OptimizedCallTargetInstrumentationFactory.class)
public class AArch64OptimizedCallTargetInstumentationFactory extends OptimizedCallTargetInstrumentationFactory {
@Override
public CompilationResultBuilder createBuilder(CodeCacheProvider codeCache, ForeignCallsProvider foreignCalls, FrameMap frameMap, Assembler asm, DataBuilder dataBuilder, FrameContext frameContext,
OptionValues options, CompilationResult compilationResult) {
return new OptimizedCallTargetInstrumentation(codeCache, foreignCalls, frameMap, asm, dataBuilder, frameContext, options, compilationResult, config, registers) {
@Override
protected void injectTailCallCode() {
AArch64MacroAssembler masm = (AArch64MacroAssembler) this.asm;
try (ScratchRegister scratch = masm.getScratchRegister()) {
Register thisRegister = codeCache.getRegisterConfig().getCallingConventionRegisters(JavaCall, Object).get(0);
Register spillRegister = scratch.getRegister();
Label doProlog = new Label();
AArch64Address entryPointAddress = AArch64Address.createPairUnscaledImmediateAddress(thisRegister, getFieldOffset("entryPoint", InstalledCode.class));
masm.ldr(64, spillRegister, entryPointAddress);
masm.cbz(64, spillRegister, doProlog);
masm.jmp(spillRegister);
masm.nop();
masm.bind(doProlog);
}
}
};
}
@Override
public String getArchitecture() {
return "aarch64";
}
}