61 lines
2.1 KiB
Factor
61 lines
2.1 KiB
Factor
! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors arrays kernel sequences sequences.deep
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compiler.cfg.instructions cpu.architecture ;
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IN: compiler.cfg.two-operand
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! On x86, instructions take the form x = x op y
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! Our SSA IR is x = y op z
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! We don't bother with ##add, ##add-imm or ##sub-imm since x86
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! has a LEA instruction which is effectively a three-operand
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! addition
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: make-copy ( dst src -- insn ) f \ ##copy boa ; inline
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: make-copy/float ( dst src -- insn ) f \ ##copy-float boa ; inline
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: convert-two-operand/integer ( insn -- insns )
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[ [ dst>> ] [ src1>> ] bi make-copy ]
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[ dup dst>> >>src1 ]
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bi 2array ; inline
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: convert-two-operand/float ( insn -- insns )
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[ [ dst>> ] [ src1>> ] bi make-copy/float ]
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[ dup dst>> >>src1 ]
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bi 2array ; inline
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GENERIC: convert-two-operand* ( insn -- insns )
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M: ##not convert-two-operand*
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[ [ dst>> ] [ src>> ] bi make-copy ]
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[ dup dst>> >>src ]
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bi 2array ;
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M: ##sub convert-two-operand* convert-two-operand/integer ;
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M: ##mul convert-two-operand* convert-two-operand/integer ;
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M: ##mul-imm convert-two-operand* convert-two-operand/integer ;
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M: ##and convert-two-operand* convert-two-operand/integer ;
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M: ##and-imm convert-two-operand* convert-two-operand/integer ;
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M: ##or convert-two-operand* convert-two-operand/integer ;
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M: ##or-imm convert-two-operand* convert-two-operand/integer ;
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M: ##xor convert-two-operand* convert-two-operand/integer ;
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M: ##xor-imm convert-two-operand* convert-two-operand/integer ;
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M: ##shl-imm convert-two-operand* convert-two-operand/integer ;
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M: ##shr-imm convert-two-operand* convert-two-operand/integer ;
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M: ##sar-imm convert-two-operand* convert-two-operand/integer ;
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M: ##add-float convert-two-operand* convert-two-operand/float ;
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M: ##sub-float convert-two-operand* convert-two-operand/float ;
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M: ##mul-float convert-two-operand* convert-two-operand/float ;
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M: ##div-float convert-two-operand* convert-two-operand/float ;
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M: insn convert-two-operand* ;
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: convert-two-operand ( mr -- mr' )
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[
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two-operand? [
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[ convert-two-operand* ] map flatten
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] when
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] change-instructions ;
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