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 assocs ;
5 IN: compiler.cfg.builder.alien.params
9 : alloc-stack-param ( rep -- n )
11 [ rep-size cell align stack-params +@ ] dip ;
13 : ?dummy-stack-params ( rep -- )
14 dummy-stack-params? [ alloc-stack-param drop ] [ drop ] if ;
16 : ?dummy-int-params ( rep -- )
18 rep-size cell /i 1 max
19 [ int-regs get [ pop* ] unless-empty ] times
22 : ?dummy-fp-params ( rep -- )
23 drop dummy-fp-params? [ float-regs get [ pop* ] unless-empty ] when ;
25 GENERIC: next-reg-param ( rep -- reg )
27 M: int-rep next-reg-param
28 [ ?dummy-stack-params ] [ ?dummy-fp-params ] bi
31 M: float-rep next-reg-param
32 [ ?dummy-stack-params ] [ ?dummy-int-params ] bi
35 M: double-rep next-reg-param
36 [ ?dummy-stack-params ] [ ?dummy-int-params ] bi
39 : reg-class-full? ( reg-class -- ? ) get empty? ;
41 : init-reg-class ( abi reg-class -- )
42 [ swap param-regs at <reversed> >vector ] keep set ;
44 : init-regs ( regs -- )
45 [ <reversed> >vector swap set ] assoc-each ;
47 : with-param-regs ( abi quot -- )
48 '[ param-regs init-regs 0 stack-params set @ ] with-scope ; inline
50 : next-return-reg ( rep -- reg ) reg-class-of get pop ;
52 : with-return-regs ( quot -- )
53 '[ return-regs init-regs @ ] with-scope ; inline