================
@@ -1824,6 +1835,94 @@ RangeSet
SymbolicRangeInferrer::VisitBinaryOperator<BO_Rem>(Range LHS,
return {RangeFactory, ValueFactory.getValue(Min),
ValueFactory.getValue(Max)};
}
+RangeSet SymbolicRangeInferrer::handleConcreteModulo(Range LHS,
+ llvm::APSInt Modulo,
+ QualType T) {
+ APSIntType ResultType = ValueFactory.getAPSIntType(T);
+ llvm::APSInt Zero = ResultType.getZeroValue();
+ llvm::APSInt One = ResultType.getValue(1);
+
+ if (Modulo == Zero)
+ return RangeFactory.getEmptySet();
+ if (Modulo < 0)
+ Modulo = -Modulo;
----------------
steakhal wrote:
If we swap the sign of the RHS, we should also swap it on the LHS: `X % Y <=>
-X % -Y` right?
https://github.com/llvm/llvm-project/pull/65448
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