Optimization

master
Apoorva Ranade 3 years ago
parent ee03f7b1c0
commit 37a90ac2f6

@ -42,6 +42,8 @@ public class CodeGenImpl extends CodeGenBase
protected final Label initcharsLabel = new Label("initchars");
protected final Label allCharsLabel = new Label("allChars");
/** Variable to indicate if Strings are used in the program for optimization */
private boolean flag = false;
/** Operation on None. */
private final Label errorNone = new Label("error.None");
@ -454,6 +456,7 @@ public class CodeGenImpl extends CodeGenBase
@Override
public Register analyze(StringLiteral node)
{
flag=true;
Label l = constants.getStrConstant(node.value);
backend.emitLA(Register.A0, l, "Load string literal");
return Register.A0;
@ -498,6 +501,8 @@ public class CodeGenImpl extends CodeGenBase
private Object getVar(Identifier id)
{
if(id.getInferredType().equals(Type.STR_TYPE))
flag=true;
SymbolInfo info = sym.get(id.name);
if(info instanceof StackVarInfo)
return getStackVar((StackVarInfo)info);
@ -1145,9 +1150,13 @@ public class CodeGenImpl extends CodeGenBase
emitStdFunc("strneql");
emitStdFunc("makeint");
emitStdFunc("makebool");
emitStdFunc("initchars");
emitStdFunc("allChars");
if(flag)
{
emitStdFunc("initchars");
emitStdFunc("allChars");
}
else
emitStdFunc("dummy");
emitErrorFunc(errorNone, "Operation on None");
emitErrorFunc(errorDiv, "Division by zero");
emitErrorFunc(errorOob, "Index out of bounds");

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