Refactor OS-specific parts of PowerPC backend
parent
070432d140
commit
639da2d335
basis/cpu/ppc
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@ -0,0 +1,19 @@
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! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors system kernel alien.c-types cpu.architecture cpu.ppc ;
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IN: cpu.ppc.linux
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<<
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t "longlong" c-type (>>stack-align?)
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t "ulonglong" c-type (>>stack-align?)
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>>
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M: linux reserved-area-size 2 ;
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M: linux lr-save 1 ;
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M: float-regs param-regs { 1 2 3 4 5 6 7 8 } ;
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M: ppc value-structs? drop f ;
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M: ppc fp-shadows-int? drop f ;
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@ -0,0 +1 @@
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unportable
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@ -0,0 +1,20 @@
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! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors system kernel alien.c-types cpu.architecture cpu.ppc ;
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IN: cpu.ppc.macosx
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<<
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4 "longlong" c-type (>>align)
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4 "ulonglong" c-type (>>align)
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4 "double" c-type (>>align)
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>>
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M: macosx reserved-area-size 6 ;
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M: macosx lr-save 2 ;
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M: float-regs param-regs { 1 2 3 4 5 6 7 8 9 10 11 12 13 } ;
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M: ppc value-structs? drop t ;
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M: ppc fp-shadows-int? drop t ;
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@ -0,0 +1 @@
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unportable
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@ -4,8 +4,7 @@ USING: accessors assocs sequences kernel combinators make math
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math.order math.ranges system namespaces locals layouts words
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alien alien.c-types cpu.architecture cpu.ppc.assembler
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compiler.cfg.registers compiler.cfg.instructions
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compiler.constants compiler.codegen compiler.codegen.fixup
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compiler.cfg.intrinsics compiler.cfg.stack-frame ;
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compiler.constants compiler.codegen compiler.codegen.fixup ;
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IN: cpu.ppc
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! PowerPC register assignments:
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@ -16,31 +15,15 @@ IN: cpu.ppc
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! f0-f29: float vregs
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! f30, f31: float scratch
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<< {
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{ [ os macosx? ] [
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4 "longlong" c-type (>>align)
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4 "ulonglong" c-type (>>align)
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4 "double" c-type (>>align)
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] }
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{ [ os linux? ] [
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t "longlong" c-type (>>stack-align?)
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t "ulonglong" c-type (>>stack-align?)
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] }
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} cond
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enable-float-intrinsics
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\ ##integer>float t frame-required? set-word-prop
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\ ##float>integer t frame-required? set-word-prop >>
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M: ppc machine-registers
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{
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{ int-regs T{ range f 2 26 1 } }
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{ double-float-regs T{ range f 0 29 1 } }
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{ double-float-regs T{ range f 0 28 1 } }
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} ;
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: scratch-reg 28 ; inline
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: fp-scratch-reg 30 ; inline
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: fp-scratch-reg-1 29 ; inline
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: fp-scratch-reg-2 30 ; inline
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M: ppc two-operand? f ;
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@ -70,21 +53,9 @@ M: ppc %replace loc>operand STW ;
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M: ppc %inc-d ( n -- ) ds-reg (%inc) ;
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M: ppc %inc-r ( n -- ) rs-reg (%inc) ;
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: reserved-area-size ( -- n )
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os {
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{ linux [ 2 ] }
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{ macosx [ 6 ] }
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} case cells ; foldable
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HOOK: reserved-area-size os ( -- n )
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HOOK: lr-save os ( -- n )
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! The start of the stack frame contains the size of this frame
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! as well as the currently executing XT
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: factor-area-size ( -- n ) 2 cells ; foldable
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: next-save ( n -- i ) cell - ;
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: xt-save ( n -- i ) 2 cells - ;
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! Next, we have the spill area as well as the FFI parameter area.
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! They overlap, since basic blocks with FFI calls will never
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! spill.
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: param@ ( n -- x ) reserved-area-size + ; inline
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: param-save-size ( -- n ) 8 cells ; foldable
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@ -92,38 +63,19 @@ M: ppc %inc-r ( n -- ) rs-reg (%inc) ;
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: local@ ( n -- x )
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reserved-area-size param-save-size + + ; inline
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: spill-integer-base ( -- n )
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stack-frame get spill-counts>> double-float-regs swap at
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double-float-regs reg-size * ;
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: factor-area-size ( -- n ) 2 cells ; foldable
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: spill-integer@ ( n -- offset )
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cells spill-integer-base + param@ ;
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: next-save ( n -- i ) cell - ;
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: spill-float@ ( n -- offset )
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double-float-regs reg-size * param@ ;
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! Some FP intrinsics need a temporary scratch area in the stack
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! frame, 8 bytes in size
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: scratch@ ( n -- offset )
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stack-frame get total-size>>
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factor-area-size -
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param-save-size -
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+ ;
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! Finally we have the linkage area
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: lr-save ( -- n )
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os {
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{ linux [ 1 ] }
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{ macosx [ 2 ] }
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} case cells ; foldable
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: xt-save ( n -- i ) 2 cells - ;
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M: ppc stack-frame-size ( stack-frame -- i )
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[ spill-counts>> [ swap reg-size * ] { } assoc>map sum ]
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[ params>> ]
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[ return>> ]
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tri + +
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param-save-size +
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reserved-area-size +
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param-save-size +
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factor-area-size +
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4 cells align ;
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@ -246,19 +198,19 @@ M: ppc %div-float FDIV ;
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M:: ppc %integer>float ( dst src -- )
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HEX: 4330 scratch-reg LIS
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scratch-reg 1 0 scratch@ STW
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scratch-reg 1 0 param@ STW
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scratch-reg src MR
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scratch-reg dup HEX: 8000 XORIS
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scratch-reg 1 4 scratch@ STW
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dst 1 0 scratch@ LFD
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scratch-reg 1 cell param@ STW
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fp-scratch-reg-2 1 0 param@ LFD
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scratch-reg 4503601774854144.0 %load-indirect
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fp-scratch-reg scratch-reg float-offset LFD
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dst dst fp-scratch-reg FSUB ;
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fp-scratch-reg-2 scratch-reg float-offset LFD
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fp-scratch-reg-2 fp-scratch-reg-2 fp-scratch-reg-2 FSUB ;
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M:: ppc %float>integer ( dst src -- )
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fp-scratch-reg src FCTIWZ
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fp-scratch-reg 1 0 scratch@ STFD
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dst 1 4 scratch@ LWZ ;
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fp-scratch-reg-1 src FCTIWZ
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fp-scratch-reg-2 1 0 param@ STFD
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dst 1 4 param@ LWZ ;
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M: ppc %copy ( dst src -- ) MR ;
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@ -266,10 +218,6 @@ M: ppc %copy-float ( dst src -- ) FMR ;
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M: ppc %unbox-float ( dst src -- ) float-offset LFD ;
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M:: ppc %box-float ( dst src temp -- )
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dst 16 float temp %allot
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src dst float-offset STFD ;
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M:: ppc %unbox-any-c-ptr ( dst src temp -- )
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[
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{ "is-byte-array" "end" "start" } [ define-label ] each
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@ -401,12 +349,12 @@ M: ppc %gc
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"end" resolve-label ;
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M: ppc %prologue ( n -- )
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0 11 LOAD32 rc-absolute-ppc-2/2 rel-this
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0 scratch-reg LOAD32 rc-absolute-ppc-2/2 rel-this
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0 MFLR
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1 1 pick neg ADDI
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11 1 pick xt-save STW
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dup 11 LI
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11 1 pick next-save STW
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scratch-reg 1 pick xt-save STW
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dup scratch-reg LI
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scratch-reg 1 pick next-save STW
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0 1 rot lr-save + STW ;
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M: ppc %epilogue ( n -- )
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@ -457,22 +405,38 @@ M: ppc %compare-branch (%compare) %branch ;
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M: ppc %compare-imm-branch (%compare-imm) %branch ;
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M: ppc %compare-float-branch (%compare-float) %branch ;
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M: ppc %spill-integer ( src n -- ) spill-integer@ 1 swap STW ;
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M: ppc %reload-integer ( dst n -- ) spill-integer@ 1 swap LWZ ;
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: spill-integer-base ( stack-frame -- n )
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[ params>> ] [ return>> ] bi + ;
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M: ppc %spill-float ( src n -- ) spill-float@ 1 swap STFD ;
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M: ppc %reload-float ( dst n -- ) spill-float@ 1 swap LFD ;
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: stack@ 1 swap ; inline
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: spill-integer@ ( n -- reg offset )
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cells
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stack-frame get spill-integer-base
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+ stack@ ;
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: spill-float-base ( stack-frame -- n )
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[ spill-counts>> int-regs swap at int-regs reg-size * ]
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[ params>> ]
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[ return>> ]
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tri + + ;
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: spill-float@ ( n -- reg offset )
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double-float-regs reg-size *
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stack-frame get spill-float-base
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+ stack@ ;
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M: ppc %spill-integer ( src n -- ) spill-integer@ STW ;
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M: ppc %reload-integer ( dst n -- ) spill-integer@ LWZ ;
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M: ppc %spill-float ( src n -- ) spill-float@ STFD ;
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M: ppc %reload-float ( dst n -- ) spill-float@ LFD ;
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M: ppc %loop-entry ;
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M: int-regs return-reg drop 3 ;
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M: int-regs param-regs drop { 3 4 5 6 7 8 9 10 } ;
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M: float-regs return-reg drop 1 ;
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M: float-regs param-regs
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drop os H{
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{ macosx { 1 2 3 4 5 6 7 8 9 10 11 12 13 } }
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{ linux { 1 2 3 4 5 6 7 8 } }
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} at ;
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M: int-regs %save-param-reg drop 1 rot local@ STW ;
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M: int-regs %load-param-reg drop 1 rot local@ LWZ ;
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@ -595,13 +559,6 @@ M: ppc %callback-value ( ctype -- )
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! Unbox former top of data stack to return registers
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unbox-return ;
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M: ppc value-structs?
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#! On Linux/PPC, value structs are passed in the same way
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#! as reference structs, we just have to make a copy first.
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os linux? not ;
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M: ppc fp-shadows-int? ( -- ? ) os macosx? ;
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M: ppc small-enough? ( n -- ? ) -32768 32767 between? ;
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M: ppc struct-small-enough? ( size -- ? ) drop f ;
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@ -611,3 +568,10 @@ M: ppc %box-small-struct
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M: ppc %unbox-small-struct
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drop "No small structs" throw ;
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USE: vocabs.loader
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{
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{ [ os macosx? ] [ "cpu.ppc.macosx" require ] }
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{ [ os linux? ] [ "cpu.ppc.linux" require ] }
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} cond
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