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Fixed problem where unused parameters were eliminated.

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This commit is contained in:
jespergravgaard 2020-03-02 20:56:04 +01:00
parent 25279aead3
commit 2427720581
3 changed files with 16 additions and 11 deletions
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4
src/main/java/dk/camelot64/kickc/Compiler.java
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@ -146,8 +146,8 @@ public class Compiler {
if(variableBuilderConfig == null) {
VariableBuilderConfig config = new VariableBuilderConfig();
VariableBuilderConfig.defaultPreConfig(config, program.getLog());
VariableBuilderConfig.defaultPostConfig(config, program.getLog());
VariableBuilderConfig.defaultPreConfig(config, getLog());
VariableBuilderConfig.defaultPostConfig(config, getLog());
this.variableBuilderConfig = config;
}

19
src/main/java/dk/camelot64/kickc/model/symbols/Procedure.java
View File

@ -8,6 +8,7 @@ import dk.camelot64.kickc.model.values.ProcedureRef;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
/** Symbol describing a procedure/function */
public class Procedure extends Scope {
@ -233,19 +234,19 @@ public class Procedure extends Scope {
if(this == o) return true;
if(o == null || getClass() != o.getClass()) return false;
if(!super.equals(o)) return false;
Procedure procedure = (Procedure) o;
if(returnType != null ? !returnType.equals(procedure.returnType) : procedure.returnType != null) return false;
return parameterNames != null ? parameterNames.equals(procedure.parameterNames) : procedure.parameterNames == null;
return declaredInline == procedure.declaredInline &&
Objects.equals(returnType, procedure.returnType) &&
Objects.equals(parameterNames, procedure.parameterNames) &&
interruptType == procedure.interruptType &&
Objects.equals(comments, procedure.comments) &&
Objects.equals(reservedZps, procedure.reservedZps) &&
Objects.equals(codeSegment, procedure.codeSegment) &&
callingConvention == procedure.callingConvention;
}
@Override
public int hashCode() {
int result = super.hashCode();
result = 31 * result + (returnType != null ? returnType.hashCode() : 0);
result = 31 * result + (parameterNames != null ? parameterNames.hashCode() : 0);
return result;
return Objects.hash(super.hashCode(), returnType, parameterNames, declaredInline, interruptType, comments, reservedZps, codeSegment, callingConvention);
}
}

4
src/main/java/dk/camelot64/kickc/passes/PassNEliminateUnusedVars.java
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@ -161,6 +161,10 @@ public class PassNEliminateUnusedVars extends Pass2SsaOptimization {
// Do not eliminate return variables in pass 1
return false;
}
if(variable.getScope() instanceof Procedure && ((Procedure) variable.getScope()).getParameters().contains(variable)) {
// Do not eliminate parameters
return false;
}
final boolean unused = referenceInfos.isUnused(variable.getRef());
if(!unused)
// Do not eliminate is not unused