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precomputed frames, better local state saving

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Parker TenBroeck 2025-04-29 12:12:29 -04:00
parent b0d6737b07
commit 989c807aac
10 changed files with 355 additions and 176 deletions
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39
src/generator/runtime/gen/GenSMBuilder.java
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@ -1,10 +1,7 @@
package generator.runtime.gen;
import generator.gen.Gen;
import generator.runtime.ReplacementKind;
import generator.runtime.SpecialMethod;
import generator.runtime.SpecialMethodHandler;
import generator.runtime.StateMachineBuilder;
import generator.runtime.*;
import java.lang.classfile.*;
import java.lang.constant.ClassDesc;
@ -23,12 +20,13 @@ public class GenSMBuilder extends StateMachineBuilder {
public final static MethodTypeDesc MTD_Gen = MethodTypeDesc.of(CD_Gen);
public final static MethodTypeDesc MTD_Obj = MethodTypeDesc.of(ConstantDescs.CD_Object);
static class YieldHandler implements SpecialMethodHandler {
static class YieldHandler extends SpecialMethodHandler {
final int resume_state;
final Label resume_label;
final boolean is_void;
public YieldHandler(StateMachineBuilder smb, CodeBuilder cob, boolean is_void) {
super(smb, cob);
resume_state = smb.add_state(resume_label = cob.newLabel());
this.is_void = is_void;
}
@ -36,32 +34,33 @@ public class GenSMBuilder extends StateMachineBuilder {
public ReplacementKind replacementKind(){return ReplacementKind.ImmediateReplacingPop;}
@Override
public void handle(StateMachineBuilder smb, CodeBuilder cob) {
public void buildHandler(StateMachineBuilder smb, CodeBuilder cob, Frame frame) {
if(is_void)cob.aconst_null();
smb.lt.savingLocals(smb.CD_this, cob, () -> {
cob.aload(0).loadConstant(resume_state).putfield(smb.CD_this, STATE_NAME, TypeKind.INT.upperBound())
.new_(CD_Yield)
.dup_x1()
.swap()
.invokespecial(CD_Yield, ConstantDescs.INIT_NAME, MethodTypeDesc.of(ConstantDescs.CD_void, ConstantDescs.CD_Object))
.areturn();
cob.labelBinding(resume_label);
});
// smb.lt.savingLocals(smb.CD_this, cob, () -> {
// cob.aload(0).loadConstant(resume_state).putfield(smb.CD_this, STATE_NAME, TypeKind.INT.upperBound())
// .new_(CD_Yield)
// .dup_x1()
// .swap()
// .invokespecial(CD_Yield, ConstantDescs.INIT_NAME, MethodTypeDesc.of(ConstantDescs.CD_void, ConstantDescs.CD_Object))
// .areturn();
// cob.labelBinding(resume_label);
// });
}
}
static class RetHandler implements SpecialMethodHandler {
static class RetHandler extends SpecialMethodHandler {
final boolean is_void;
public RetHandler(boolean is_void) {
public RetHandler(StateMachineBuilder smb, CodeBuilder cob, boolean is_void) {
super(smb, cob);
this.is_void = is_void;
}
public ReplacementKind replacementKind(){return ReplacementKind.ReplacingNextReturn;}
@Override
public void handle(StateMachineBuilder smb, CodeBuilder cob) {
public void buildHandler(StateMachineBuilder smb, CodeBuilder cob, Frame frame) {
if(is_void)cob.aconst_null();
cob.aload(0).loadConstant(-1).putfield(smb.CD_this, STATE_NAME, TypeKind.INT.upperBound())
@ -77,8 +76,8 @@ public class GenSMBuilder extends StateMachineBuilder {
super(src_clm, src_mem, src_com);
smmap.put(new SpecialMethod(CD_Gen, "yield", MTD_Gen_Obj),(smb, cob) -> new YieldHandler(smb, cob, false));
smmap.put(new SpecialMethod(CD_Gen, "yield", MTD_Gen),(smb, cob) -> new YieldHandler(smb, cob, true));
smmap.put(new SpecialMethod(CD_Gen, "ret", MTD_Gen_Obj),(_, _) -> new RetHandler(false));
smmap.put(new SpecialMethod(CD_Gen, "ret", MTD_Gen),(_, _) -> new RetHandler(true));
smmap.put(new SpecialMethod(CD_Gen, "ret", MTD_Gen_Obj),(smb, cob) -> new RetHandler(smb, cob, false));
smmap.put(new SpecialMethod(CD_Gen, "ret", MTD_Gen),(smb, cob) -> new RetHandler(smb, cob, true));
}
@Override