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[ompd] Fix strict aliasing violation in TargetValue::getValue() #97739

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Merged
merged 1 commit into from
Jul 5, 2024
Merged

[ompd] Fix strict aliasing violation in TargetValue::getValue() #97739

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37 changes: 21 additions & 16 deletions openmp/libompd/src/TargetValue.h
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Original file line number Diff line number Diff line change
Expand Up @@ -231,22 +231,27 @@ class TBaseValue : public TValue {

template <typename T> ompd_rc_t TBaseValue::getValue(T &buf) {
assert(sizeof(T) >= baseTypeSize);
ompd_rc_t ret = getValue(&buf, 1);
if (sizeof(T) > baseTypeSize) {
switch (baseTypeSize) {
case 1:
buf = (T) * ((int8_t *)&buf);
break;
case 2:
buf = (T) * ((int16_t *)&buf);
break;
case 4:
buf = (T) * ((int32_t *)&buf);
break;
case 8:
buf = (T) * ((int64_t *)&buf);
break;
}
if (sizeof(T) == baseTypeSize)
return getValue(&buf, 1);

char tmp[sizeof(T)];
ompd_rc_t ret = getValue(tmp, 1);
switch (baseTypeSize) {
case 1:
buf = (T) * ((int8_t *)tmp);
break;
case 2:
buf = (T) * ((int16_t *)tmp);
break;
case 4:
buf = (T) * ((int32_t *)tmp);
break;
case 8:
buf = (T) * ((int64_t *)tmp);
break;
default:
assert(0 && "Invalid baseTypeSize");
break;
}
return ret;
}
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