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[qfcc] Move constant pointer offset into address expr

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This is the intended purpose of the offset field in address expressions,
and will make struct and array accesses more efficient when I sort out
the code generation side.
This commit is contained in:
Bill Currie 2022-02-03 10:55:37 +09:00
parent b668759b7d
commit 6f49b919ec
1 changed files with 6 additions and 0 deletions
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6
tools/qfcc/source/expr.c
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@ -2622,6 +2622,12 @@ offset_pointer_expr (expr_t *pointer, expr_t *offset)
if (pointer->type == ex_alias && !pointer->e.alias.offset
&& is_integral (get_type (pointer->e.alias.expr))) {
ptr = pointer->e.alias.expr;
} else if (pointer->type == ex_address && is_constant (offset)) {
if (pointer->e.address.offset) {
offset = binary_expr ('+', pointer->e.address.offset, offset);
}
pointer->e.address.offset = offset;
return pointer;
} else {
ptr = cast_expr (&type_int, pointer);
}