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Changed ListExpr Analyze and add operator for lists

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This commit is contained in:
Apoorva Ranade
2021-05-04 13:19:40 +05:30
parent 874808ef98
commit 1952bb2d38
1 changed files with 53 additions and 27 deletions
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src/main/java/chocopy/pa3/CodeGenImpl.java
+52 -26
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@@ -32,12 +32,12 @@ public class CodeGenImpl extends CodeGenBase
{ {
/** Label for built-in routines. */ /** Label for built-in routines. */
protected final Label makeintLabel = new Label("makeint"); protected final Label makeintLabel = new Label("makeint");
protected final Label strneqlLablel = new Label("strneql"); protected final Label strneqlLabel = new Label("strneql");
protected final Label streqlLablel = new Label("streql"); protected final Label streqlLabel = new Label("streql");
protected final Label makeboolLabel = new Label("makebool"); protected final Label makeboolLabel = new Label("makebool");
protected final Label strcatLablel = new Label("strcat"); protected final Label strcatLabel = new Label("strcat");
protected final Label concatLablel = new Label("concat"); protected final Label concatLabel = new Label("concat");
protected final Label conslistLablel = new Label("conslist"); protected final Label conslistLabel = new Label("conslist");
@@ -709,25 +709,43 @@ public class CodeGenImpl extends CodeGenBase
} }
else if(node.left.getInferredType().isListType() && node.right.getInferredType().isListType()) else if(node.left.getInferredType().isListType() && node.right.getInferredType().isListType())
{ {
node.right.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push on stack slot "+sp_off);
incSp(1);
node.left.dispatch(this);
sp_off--;
backend.emitLW(Register.T0, Register.FP, -sp_off*wordSize, "Pop stack slot "+sp_off);
if(operator.equals("+")) if(operator.equals("+"))
addLists(); {
node.left.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push left operand on stack slot "+sp_off);
incSp(1);
node.right.dispatch(this);
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push right operand on stack slot "+sp_off);
incSp(1);
backend.emitADDI(Register.SP,Register.FP,-sp_off*wordSize,"Set SP to last argument");
backend.emitJAL(concatLabel, "Call concatenation routine");
backend.emitADDI(Register.SP, Register.FP, "-"+size_label, "Set SP to stack frame");
return Register.A0;
//addLists();
}
else
backend.emitJAL(errorNI, "Operator not implemented for list operands");
} }
else if(node.left.getInferredType().equals(Type.STR_TYPE) && node.right.getInferredType().equals(Type.STR_TYPE)) else if(node.left.getInferredType().equals(Type.STR_TYPE) && node.right.getInferredType().equals(Type.STR_TYPE))
{
if(operator.equals("=="))
{ {
incSp(2); incSp(2);
backend.emitSW(node.left.dispatch(this), FP, (1 - sp_off) *wordSize, "Push argument 0 from last."); backend.emitSW(node.left.dispatch(this), FP, (1 - sp_off) *wordSize, "Push argument 0 from last.");
backend.emitSW(node.right.dispatch(this), FP, ( - sp_off) *wordSize, "Push argument 1 from last."); backend.emitSW(node.right.dispatch(this), FP, ( - sp_off) *wordSize, "Push argument 1 from last.");
backend.emitADDI(SP, FP, -sp_off * wordSize, "Set SP to last argument."); backend.emitADDI(SP, FP, -sp_off * wordSize, "Set SP to last argument.");
backend.emitJAL(streqlLablel, "Invoke method:streql"); backend.emitJAL(streqlLabel, "Invoke method:streql");
sp_off -= 2; sp_off -= 2;
backend.emitADDI(SP, FP, -sp_off*wordSize, "restore sp"); backend.emitADDI(SP, FP, -sp_off*wordSize, "restore sp");
} }
else if(operator.equals("+"))
{
}
else
backend.emitJAL(errorNI, "Operator not implemented for String operands");
}
else if(operator.equals("is")) else if(operator.equals("is"))
{ {
node.right.dispatch(this); node.right.dispatch(this);
@@ -808,25 +826,33 @@ public class CodeGenImpl extends CodeGenBase
@Override @Override
public Register analyze(ListExpr node) { public Register analyze(ListExpr node) {
int l = node.elements.size(); int l = node.elements.size();
backend.emitLI(Register.A1, l+1, "Load length of list+1 in words");
backend.emitLA(Register.A0, listClass.getPrototypeLabel(), "Load empty list");
backend.emitJAL(objectAllocResizeLabel, "Allocate list");
backend.emitMV(Register.A1, Register.A0, "Store address of allocated space");
backend.emitMV(Register.T0, Register.A1, "Make a copy of address of allocated space");
int i=l; int i=l;
backend.emitLI(Register.A0,l,"Load length of list in words");
backend.emitSW(Register.A0,Register.T0,0,"Store length of list: "+i);
backend.emitADDI(Register.T0,Register.T0,wordSize,"Increment address");
for(Expr exp:node.elements) for(Expr exp:node.elements)
{ {
Register r = exp.dispatch(this); Register r = exp.dispatch(this);
backend.emitSW(r,Register.T0,0,"Store element "+i+" from last."); if (exp.getInferredType().equals(Type.INT_TYPE) && !node.elements.get(0).getInferredType().equals(Type.INT_TYPE))
backend.emitADDI(Register.T0,Register.T0,wordSize,"Increment address"); {
if(r!=Register.A0)
backend.emitMV(r, Register.A0, "Copy to Register A0");
backend.emitJAL(makeintLabel, "Box integer");
}
else if (exp.getInferredType().equals(Type.BOOL_TYPE) && !node.elements.get(0).getInferredType().equals(Type.BOOL_TYPE))
{
if(r!=Register.A0)
backend.emitMV(r, Register.A0, "Copy to Register A0");
backend.emitJAL(makeboolLabel, "Box boolean");
}
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push argument "+i+" from last");
incSp(1);
i--; i--;
} }
backend.emitMV(Register.A0,Register.A1,"Load address of list"); backend.emitLI(Register.A0, l, "Pass list length");
backend.emitSW(Register.A0, Register.FP, -sp_off*wordSize, "Push length of list");
incSp(1);
backend.emitADDI(Register.SP, Register.FP, -(sp_off-1)*wordSize, "Set SP to last argument");
backend.emitJAL(conslistLabel, "Move values to new list object");
backend.emitADDI(Register.SP, Register.FP, "-"+size_label, "Set SP to stack frame");
sp_off-=l;
return Register.A0; return Register.A0;
} }