1 ! Copyright (C) 2008, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays sequences math splitting make assocs
4 kernel layouts system alien.c-types classes.struct
5 cpu.architecture cpu.x86.assembler cpu.x86.assembler.operands
6 cpu.x86 cpu.x86.64 compiler.cfg.builder.alien
7 compiler.cfg.builder.alien.boxing compiler.cfg.registers ;
10 M: int-regs param-regs
11 2drop { RDI RSI RDX RCX R8 R9 } ;
15 { int-regs { RDI RSI RDX RCX R8 R9 } }
16 { float-regs { XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 } }
19 M: x86.64 reserved-stack-space 0 ;
21 : struct-types&offset ( struct-type -- pairs )
23 [ type>> ] [ offset>> ] bi 2array
26 : split-struct ( pairs -- seq )
28 [ 8 mod zero? [ t , ] when , ] assoc-each
29 ] { } make { t } split harvest ;
31 : flatten-small-struct ( c-type -- seq )
32 struct-types&offset split-struct [
33 [ c-type c-type-rep reg-class-of ] map
34 int-regs swap member? int-rep double-rep ?
38 M: x86.64 flatten-struct-type ( c-type -- seq )
40 [ flatten-small-struct ] [ call-next-method [ first t 2array ] map ] if ;
42 M: x86.64 return-struct-in-registers? ( c-type -- ? )
43 heap-size 2 cells <= ;
45 M: x86.64 dummy-stack-params? f ;
47 M: x86.64 dummy-int-params? f ;
49 M: x86.64 dummy-fp-params? f ;
51 M: x86.64 temp-reg R8 ;