1 ! Copyright (C) 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: cpu.architecture fry kernel layouts math math.order
4 namespaces sequences vectors ;
5 IN: compiler.cfg.builder.alien.params
7 : alloc-stack-param ( rep -- n )
9 [ rep-size cell align stack-params +@ ] dip ;
11 : ?dummy-stack-params ( rep -- )
12 dummy-stack-params? [ alloc-stack-param drop ] [ drop ] if ;
14 : ?dummy-int-params ( rep -- )
16 rep-size cell /i 1 max
17 [ int-regs get [ pop* ] unless-empty ] times
20 : ?dummy-fp-params ( rep -- )
21 drop dummy-fp-params? [ float-regs get [ pop* ] unless-empty ] when ;
23 GENERIC: next-reg-param ( rep -- reg )
25 M: int-rep next-reg-param
26 [ ?dummy-stack-params ] [ ?dummy-fp-params ] bi int-regs get pop ;
28 M: float-rep next-reg-param
29 [ ?dummy-stack-params ] [ ?dummy-int-params ] bi float-regs get pop ;
31 M: double-rep next-reg-param
32 [ ?dummy-stack-params ] [ ?dummy-int-params ] bi float-regs get pop ;
34 GENERIC: reg-class-full? ( reg-class -- ? )
36 M: stack-params reg-class-full? drop t ;
38 M: reg-class reg-class-full? get empty? ;
40 : init-reg-class ( abi reg-class -- )
41 [ swap param-regs <reversed> >vector ] keep set ;
43 : with-param-regs ( abi quot -- )
45 [ int-regs init-reg-class ]
46 [ float-regs init-reg-class ] bi