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Produce nicer code for post-op.

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The temp notice is still there for arrays (that's caused by issues in
constfold.c, not easily fixilbe), but it's harmless and correct (and nice)
code is much more important.
This commit is contained in:
Bill Currie 2011-01-11 12:07:48 +09:00
parent ad787ae98a
commit 08bf7e24de
1 changed files with 14 additions and 8 deletions
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22
tools/qfcc/source/expr.c
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@ -2352,25 +2352,31 @@ expr_t *
incop_expr (int op, expr_t *e, int postop)
{
expr_t *one;
expr_t *incop;
if (e->type == ex_error)
return e;
one = new_integer_expr (1); // integer constants get auto-cast to float
incop = asx_expr (op, e, one);
if (postop) {
expr_t *temp;
expr_t *t1, *t2;
type_t *type = get_type (e);
expr_t *block = new_block_expr ();
expr_t *res = new_expr ();
temp = new_temp_def_expr (type);
append_expr (block, assign_expr (temp, e));
append_expr (block, incop);
block->e.block.result = temp;
t1 = new_temp_def_expr (type);
t2 = new_temp_def_expr (type);
append_expr (block, assign_expr (t1, e));
append_expr (block, assign_expr (t2, binary_expr (op, t1, one)));
res = copy_expr (e);
if (res->type == ex_uexpr && res->e.expr.op == '.')
res = pointer_expr (address_expr (res, 0, 0));
append_expr (block, assign_expr (res, t2));
block->e.block.result = t1;
print_expr (block); puts("");
return block;
} else {
return asx_expr (op, e, one);
}
return incop;
}
expr_t *