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Add multiple of the pointer target size

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This commit is contained in:
Eugen Wissner
2025-02-05 13:24:50 +01:00
parent 8b654ed138
commit ddc90b78b4
10 changed files with 337 additions and 118 deletions
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2
gcc/elna-generic.cc
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@ -74,7 +74,7 @@ namespace gcc
{
auto body_type = build_type(expression->body());
this->current_expression = build1(CONVERT_EXPR, this->symbol_map->lookup("Word"), TYPE_SIZE_UNIT(body_type));
this->current_expression = build1(CONVERT_EXPR, this->symbol_map->lookup("Word"), size_in_bytes(body_type));
}
bool generic_visitor::is_integral_type(tree type)

15
gcc/elna-tree.cc
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@ -88,16 +88,25 @@ namespace gcc
tree do_pointer_arithmetic(boot::binary_operator binary_operator, tree left, tree right)
{
tree result = error_mark_node;
tree convert_expression = fold_convert(sizetype, right);
tree pointer_type = TREE_TYPE(left);
tree offset_type = TREE_TYPE(right);
gcc_assert(is_pointer_type(pointer_type));
tree size_exp = fold_convert(offset_type, size_in_bytes(TREE_TYPE(pointer_type)));
tree convert_expression = right;
convert_expression = fold_build2(MULT_EXPR, offset_type, convert_expression, size_exp);
convert_expression = fold_convert(sizetype, convert_expression);
if (binary_operator == boot::binary_operator::sum)
{
result = fold_build2(POINTER_PLUS_EXPR, TREE_TYPE(left), left, convert_expression);
result = fold_build2(POINTER_PLUS_EXPR, pointer_type, left, convert_expression);
}
else if (binary_operator == boot::binary_operator::subtraction)
{
convert_expression = fold_build1(NEGATE_EXPR, sizetype, convert_expression);
result = fold_build2(POINTER_PLUS_EXPR, TREE_TYPE(left), left, convert_expression);
result = fold_build2(POINTER_PLUS_EXPR, pointer_type, left, convert_expression);
}
return result;
}