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add assertion message when calling lb/ub if interval is bottom, don't… #1467

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merged 1 commit into from
May 25, 2024
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add assertion message when calling lb/ub if interval is bottom, don't… #1467

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4 changes: 2 additions & 2 deletions svf/include/AE/Core/IntervalValue.h
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Original file line number Diff line number Diff line change
Expand Up @@ -205,14 +205,14 @@ class IntervalValue
/// Return the lower bound
const BoundedInt &lb() const
{
assert(!this->isBottom());
assert(!this->isBottom() && "bottom interval does not have lower bound");
return this->_lb;
}

/// Return the upper bound
const BoundedInt &ub() const
{
assert(!this->isBottom());
assert(!this->isBottom() && "bottom interval does not have upper bound");
return this->_ub;
}

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6 changes: 4 additions & 2 deletions svf/lib/AE/Svfexe/SVFIR2AbsState.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -218,9 +218,11 @@ IntervalValue SVFIR2AbsState::getUIntToFPValue(const AbstractState& as, const SV

IntervalValue SVFIR2AbsState::getTruncValue(const AbstractState& as, const SVF::SVFVar* var, const SVFType* dstType)
{
const IntervalValue& itv = as[var->getId()].getInterval();
if(itv.isBottom()) return itv;
// get the value of ub and lb
s64_t int_lb = as[var->getId()].getInterval().lb().getIntNumeral();
s64_t int_ub = as[var->getId()].getInterval().ub().getIntNumeral();
s64_t int_lb = itv.lb().getIntNumeral();
s64_t int_ub = itv.ub().getIntNumeral();
// get dst type
u32_t dst_bits = dstType->getByteSize() * 8;
if (dst_bits == 8)
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