int GetSizeOfStructType(FrontendStructType st)
{
int pos = 0;
foreach (var f in st.fields)
{
var sizeInBytes = GetSizeOfFrontendType(f.type);
var alignment = st.packed ? 1 : GetAlignmentOfFrontendType(f.type);
pos = AlignPow2(pos, alignment);
pos += sizeInBytes;
}
var alignmentStruct = st.packed ? 1 : GetAlignmentOfStruct(st);
pos = AlignPow2(pos, alignmentStruct);
return(pos);
}
List <int> GetOffsetsOfStruct(FrontendStructType st)
{
// TODO(pragma): is packed
var result = new List <int>();
int pos = 0;
foreach (var f in st.fields)
{
var sizeInBytes = GetSizeOfFrontendType(f.type);
var alignment = st.packed ? 1 : GetAlignmentOfFrontendType(f.type);
pos = AlignPow2(pos, alignment);
result.Add(pos);
pos += sizeInBytes;
Debug.Assert(sizeInBytes > 0);
}
return(result);
}
int GetAlignmentOfStruct(FrontendStructType st)
{
var result = st.fields.Select(f => GetAlignmentOfFrontendType(f.type)).Max();
return(result);
}
// TODO(pragma): maybe promote this to Frontend
int GetDISizeOfStruct(FrontendStructType st)
{
return(GetSizeOfFrontendType(st));
}
