Expr right;
Opcode opcode;
- public OpExpr(Opcode opcode, Expr left, Expr right) {
- this.opcode = opcode;
- this.left = left;
- this.right = right;
+ public void findmatch(Descriptor d, Set s) {
+ left.findmatch(d,s);
+ if (right!=null)
+ right.findmatch(d,s);
+ }
- assert (right == null && opcode == Opcode.NOT) || (right != null);
+ public static boolean isInt(Expr e) {
+ if ((e instanceof IntegerLiteralExpr)||
+ ((e instanceof OpExpr)&&(((OpExpr)e).getLeftExpr() instanceof IntegerLiteralExpr)))
+ return true;
+ return false;
+ }
+
+ public static int getInt(Expr e) {
+ if (e instanceof IntegerLiteralExpr)
+ return ((IntegerLiteralExpr)e).getValue();
+ else if ((e instanceof OpExpr) && (((OpExpr)e).getLeftExpr() instanceof IntegerLiteralExpr))
+ return ((IntegerLiteralExpr)((OpExpr)e).getLeftExpr()).getValue();
+ else throw new Error();
+ }
+
+ public OpExpr(Opcode opcode, Expr left, Expr right) {
+ if ((isInt(left)&&isInt(right))||
+ (isInt(left)&&(opcode==Opcode.NOT))||
+ (isInt(left)&&(opcode==Opcode.RND))) {
+ this.opcode=Opcode.NOP;
+ this.right=null;
+ int lint=getInt(left);
+ int rint=getInt(right);
+ int value=0;
+ if (opcode==Opcode.ADD) {
+ value=lint+rint;
+ } else if (opcode==Opcode.SUB) {
+ value=lint-rint;
+ } else if (opcode==Opcode.SHL) {
+ value=lint<<rint;
+ } else if (opcode==Opcode.SHR) {
+ value=lint>>rint;
+ } else if (opcode==Opcode.MULT) {
+ value=lint*rint;
+ } else if (opcode==Opcode.DIV) {
+ value=lint/rint;
+ } else if (opcode==Opcode.GT) {
+ if (lint>rint)
+ value=1;
+ } else if (opcode==Opcode.GE) {
+ if (lint>=rint)
+ value=1;
+ } else if (opcode==Opcode.LT) {
+ if (lint<rint)
+ value=1;
+ } else if (opcode==Opcode.LE) {
+ if (lint<=rint)
+ value=1;
+ } else if (opcode==Opcode.EQ) {
+ if (lint==rint)
+ value=1;
+ } else if (opcode==Opcode.NE) {
+ if (lint!=rint)
+ value=1;
+ } else if (opcode==Opcode.AND) {
+ if ((lint!=0)&&(rint!=0))
+ value=1;
+ } else if (opcode==Opcode.OR) {
+ if ((lint!=0)||(rint!=0))
+ value=1;
+ } else if (opcode==Opcode.NOT) {
+ if (lint==0)
+ value=1;
+ } else if (opcode==Opcode.RND) {
+ value=((lint>>3)<<3);
+ if ((lint % 8)!=0)
+ value+=8;
+ } else throw new Error("Unrecognized Opcode");
+ this.left=new IntegerLiteralExpr(value);
+ } else {
+ this.opcode = opcode;
+ this.left = left;
+ this.right = right;
+ assert (right == null && (opcode == Opcode.NOT||opcode==Opcode.RND)) || (right != null);
+ }
}
public Expr getRightExpr() {
public String name() {
if (opcode==Opcode.NOT)
return "!("+left.name()+")";
+ if (opcode==Opcode.NOP)
+ return left.name();
+ if (opcode==Opcode.RND)
+ return "Round("+left.name()+")";
String name=left.name()+opcode.toString();
if (right!=null)
name+=right.name();
return false;
if (!left.equals(remap,oe.left))
return false;
- if (opcode!=Opcode.NOT)
+ if ((opcode!=Opcode.NOT)&&(opcode!=Opcode.RND)&&(opcode!=Opcode.NOP))
if (!right.equals(remap,oe.right))
return false;
return true;
if (left instanceof RelationExpr)
return new int[] {AbstractRepair.MODIFYRELATION};
if (left instanceof SizeofExpr) {
+ Opcode op=opcode;
+ if (negated) {
+ /* remove negation through opcode translation */
+ if (op==Opcode.GT)
+ op=Opcode.LE;
+ else if (op==Opcode.GE)
+ op=Opcode.LT;
+ else if (op==Opcode.EQ)
+ op=Opcode.NE;
+ else if (op==Opcode.NE)
+ op=Opcode.EQ;
+ else if (op==Opcode.LT)
+ op=Opcode.GE;
+ else if (op==Opcode.LE)
+ op=Opcode.GT;
+ }
+
+
+
boolean isRelation=((SizeofExpr)left).setexpr instanceof ImageSetExpr;
if (isRelation) {
- if (opcode==Opcode.EQ)
+ if (op==Opcode.EQ) {
if (((IntegerLiteralExpr)right).getValue()==0)
return new int[] {AbstractRepair.REMOVEFROMRELATION};
else
return new int[] {AbstractRepair.ADDTORELATION,
- AbstractRepair.REMOVEFROMRELATION};
- if (((opcode==Opcode.GE)&&!negated)||
- ((opcode==Opcode.LE)&&negated)) {
- if (((IntegerLiteralExpr)right).getValue()==0)
- return new int[0];
- else
- return new int[]{AbstractRepair.ADDTORELATION}; }
- else
+ AbstractRepair.REMOVEFROMRELATION};
+ } else if (op==Opcode.GE||op==Opcode.GT) {
+ return new int[]{AbstractRepair.ADDTORELATION};
+ } else if (op==Opcode.LE||op==Opcode.LT) {
return new int[]{AbstractRepair.REMOVEFROMRELATION};
+ } else if (op==Opcode.NE) {
+ return new int[]{AbstractRepair.ADDTORELATION};
+ } else throw new Error();
} else {
- if (opcode==Opcode.EQ)
+ if (op==Opcode.EQ) {
if (((IntegerLiteralExpr)right).getValue()==0)
return new int[] {AbstractRepair.REMOVEFROMSET};
else
return new int[] {AbstractRepair.ADDTOSET,
AbstractRepair.REMOVEFROMSET};
-
- if (((opcode==Opcode.GE)&&!negated)||
- ((opcode==Opcode.LE)&&negated)) {
- if (((IntegerLiteralExpr)right).getValue()==0)
- return new int[0];
- else
- return new int[] {AbstractRepair.ADDTOSET}; }
- else
+ } else if (op==Opcode.GE||op==Opcode.GT) {
+ return new int[] {AbstractRepair.ADDTOSET};
+ } else if (op==Opcode.LE||op==Opcode.LT) {
return new int[] {AbstractRepair.REMOVEFROMSET};
+ } else if (op==Opcode.NE) {
+ return new int[] {AbstractRepair.ADDTOSET};
+ } else throw new Error();
}
}
throw new Error("BAD");
VarDescriptor ld = VarDescriptor.makeNew("leftop");
left.generate(writer, ld);
VarDescriptor rd = null;
+ VarDescriptor lm=VarDescriptor.makeNew("lm");
+ VarDescriptor rm=VarDescriptor.makeNew("rm");
if (right != null) {
+ if ((opcode==Opcode.OR)||
+ (opcode==Opcode.AND)) {
+ writer.outputline("int "+lm.getSafeSymbol()+"=maybe;");
+ writer.outputline("int maybe=0;");
+ }
+
rd = VarDescriptor.makeNew("rightop");
right.generate(writer, rd);
}
String code;
- if (opcode != Opcode.NOT) { /* two operands */
+ if (opcode == Opcode.RND) {
+ writer.outputline("int " +dest.getSafeSymbol() + " = (" +
+ ld.getSafeSymbol() + ">>3)<<3; ");
+ writer.outputline("if ("+ld.getSafeSymbol()+" % 8) "+dest.getSafeSymbol()+"+=8;");
+ } else if (opcode == Opcode.NOP) {
+ writer.outputline("int " +dest.getSafeSymbol() + " = " +
+ ld.getSafeSymbol() +"; ");
+ } else if (opcode != Opcode.NOT) { /* two operands */
assert rd != null;
writer.outputline("int " + dest.getSafeSymbol() + " = " +
ld.getSafeSymbol() + " " + opcode.toString() + " " + rd.getSafeSymbol() + ";");
- } else {
+ } else if (opcode == Opcode.AND) {
+ writer.outputline("int "+rm.getSafeSymbol()+"=maybe;");
+ writer.outputline("maybe = (" + ld.getSafeSymbol() + " && " + rm.getSafeSymbol() + ") || (" + rd.getSafeSymbol() + " && " + lm.getSafeSymbol() + ") || (" + lm.getSafeSymbol() + " && " + rm.getSafeSymbol() + ");");
+ writer.outputline(dest.getSafeSymbol() + " = " + ld.getSafeSymbol() + " && " + rd.getSafeSymbol() + ";");
+ } else if (opcode == Opcode.OR) {
+ writer.outputline("int "+rm.getSafeSymbol()+"=maybe;");
+ writer.outputline("maybe = (!" + ld.getSafeSymbol() + " && " + rm.getSafeSymbol() + ") || (!" + rd.getSafeSymbol() +
+ " && " + lm.getSafeSymbol() + ") || (" + lm.getSafeSymbol() + " && " + rm.getSafeSymbol() + ");");
+ writer.outputline(dest.getSafeSymbol() + " = " + ld.getSafeSymbol() + " || " + rd.getSafeSymbol() +
+ ";");
+ } else {
writer.outputline("int " + dest.getSafeSymbol() + " = !" + ld.getSafeSymbol() + ";");
}
}
public void prettyPrint(PrettyPrinter pp) {
pp.output("(");
if (opcode == Opcode.NOT) {
+ pp.output("!");
+ left.prettyPrint(pp);
+ } else if (opcode == Opcode.NOP) {
+ left.prettyPrint(pp);
+ } else if (opcode == Opcode.RND) {
+ pp.output("RND ");
left.prettyPrint(pp);
} else {
left.prettyPrint(pp);
projects / repair.git / blobdiff