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check min<=max in ChooseQuantizationParams #1612

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check min<=max in ChooseQuantizationParams #1612

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5 changes: 5 additions & 0 deletions src/QuantUtils.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,11 @@ TensorQuantizationParams ChooseQuantizationParams(
int32_t qmax,
bool preserve_sparsity,
bool force_scale_power_of_two) {
if (min > max) {
throw std::runtime_error(
"In ChooseQuantizationParams, min should be less than or equal to max");
}

if (min < 0 && max > 0 && preserve_sparsity) {
int symmetric_qmin = -((qmax - qmin) / 2 + 1);
int symmetric_qmax = (qmax - qmin) / 2;
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