862 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			Factor
		
	
	
			
		
		
	
	
			862 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			Factor
		
	
	
! Copyright (C) 2008, 2011 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors compiler.cfg.instructions.syntax kernel math
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namespaces ;
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IN: compiler.cfg.instructions
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<<
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SYMBOL: insn-classes
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V{ } clone insn-classes set-global
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>>
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: new-insn ( ... class -- insn ) f swap boa ; inline
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TUPLE: insn ;
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TUPLE: vreg-insn < insn ;
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TUPLE: flushable-insn < vreg-insn ;
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TUPLE: foldable-insn < flushable-insn ;
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! Constants
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FOLDABLE-INSN: ##load-integer
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def: dst/int-rep
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literal: val ;
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FOLDABLE-INSN: ##load-reference
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def: dst/tagged-rep
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literal: obj ;
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! These four are inserted by representation selection
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FLUSHABLE-INSN: ##load-tagged
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def: dst/tagged-rep
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literal: val ;
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FLUSHABLE-INSN: ##load-float
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def: dst/float-rep
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literal: val ;
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FLUSHABLE-INSN: ##load-double
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def: dst/double-rep
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literal: val ;
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FLUSHABLE-INSN: ##load-vector
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def: dst
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literal: val rep ;
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! Stack operations
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FLUSHABLE-INSN: ##peek
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def: dst/tagged-rep
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literal: loc ;
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VREG-INSN: ##replace
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use: src/tagged-rep
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literal: loc ;
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INSN: ##replace-imm
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literal: src loc ;
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INSN: ##clear
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literal: loc ;
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INSN: ##inc
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literal: loc ;
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! Subroutine calls
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INSN: ##call
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literal: word ;
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INSN: ##jump
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literal: word ;
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INSN: ##prologue ;
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INSN: ##epilogue ;
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INSN: ##return ;
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INSN: ##safepoint ;
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INSN: ##no-tco ;
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! Jump tables
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VREG-INSN: ##dispatch
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use: src/int-rep
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temp: temp/int-rep ;
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! Slot access
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FLUSHABLE-INSN: ##slot
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def: dst/tagged-rep
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use: obj/tagged-rep slot/int-rep
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literal: scale tag ;
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FLUSHABLE-INSN: ##slot-imm
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def: dst/tagged-rep
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use: obj/tagged-rep
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literal: slot tag ;
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VREG-INSN: ##set-slot
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use: src/tagged-rep obj/tagged-rep slot/int-rep
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literal: scale tag ;
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VREG-INSN: ##set-slot-imm
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use: src/tagged-rep obj/tagged-rep
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literal: slot tag ;
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! Register transfers
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FOLDABLE-INSN: ##copy
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def: dst
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use: src
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literal: rep ;
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! Only used by compiler.cfg.cssa
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FLUSHABLE-INSN: ##parallel-copy
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literal: values ;
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FOLDABLE-INSN: ##tagged>integer
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def: dst/int-rep
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use: src/tagged-rep ;
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! Integer arithmetic
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FOLDABLE-INSN: ##add
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##add-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##sub
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##sub-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##mul
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##mul-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##and
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##and-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##or
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##or-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##xor
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##xor-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##shl
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##shl-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##shr
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##shr-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##sar
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##sar-imm
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def: dst/int-rep
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use: src1/int-rep
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literal: src2 ;
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FOLDABLE-INSN: ##min
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##max
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def: dst/int-rep
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use: src1/int-rep src2/int-rep ;
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FOLDABLE-INSN: ##not
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def: dst/int-rep
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use: src/int-rep ;
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FOLDABLE-INSN: ##neg
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def: dst/int-rep
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use: src/int-rep ;
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FOLDABLE-INSN: ##log2
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def: dst/int-rep
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use: src/int-rep ;
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FOLDABLE-INSN: ##bit-count
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def: dst/int-rep
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use: src/int-rep ;
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FOLDABLE-INSN: ##bit-test
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def: dst/tagged-rep
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use: src1/int-rep src2/int-rep
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temp: temp/int-rep ;
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! Float arithmetic
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FOLDABLE-INSN: ##add-float
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def: dst/double-rep
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use: src1/double-rep src2/double-rep ;
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FOLDABLE-INSN: ##sub-float
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def: dst/double-rep
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use: src1/double-rep src2/double-rep ;
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FOLDABLE-INSN: ##mul-float
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def: dst/double-rep
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use: src1/double-rep src2/double-rep ;
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FOLDABLE-INSN: ##div-float
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def: dst/double-rep
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use: src1/double-rep src2/double-rep ;
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FOLDABLE-INSN: ##min-float
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def: dst/double-rep
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use: src1/double-rep src2/double-rep ;
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FOLDABLE-INSN: ##max-float
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def: dst/double-rep
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use: src1/double-rep src2/double-rep ;
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FOLDABLE-INSN: ##sqrt
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def: dst/double-rep
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use: src/double-rep ;
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! Single/double float conversion
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FOLDABLE-INSN: ##single>double-float
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def: dst/double-rep
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use: src/float-rep ;
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FOLDABLE-INSN: ##double>single-float
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def: dst/float-rep
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use: src/double-rep ;
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! Float/integer conversion
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FOLDABLE-INSN: ##float>integer
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def: dst/int-rep
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use: src/double-rep ;
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FOLDABLE-INSN: ##integer>float
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def: dst/double-rep
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use: src/int-rep ;
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! SIMD operations
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FOLDABLE-INSN: ##zero-vector
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def: dst
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literal: rep ;
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FOLDABLE-INSN: ##fill-vector
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def: dst
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literal: rep ;
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FOLDABLE-INSN: ##gather-vector-2
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def: dst
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use: src1/scalar-rep src2/scalar-rep
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literal: rep ;
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FOLDABLE-INSN: ##gather-int-vector-2
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def: dst
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use: src1/int-rep src2/int-rep
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literal: rep ;
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FOLDABLE-INSN: ##gather-vector-4
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def: dst
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use: src1/scalar-rep src2/scalar-rep src3/scalar-rep src4/scalar-rep
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literal: rep ;
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FOLDABLE-INSN: ##gather-int-vector-4
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def: dst
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use: src1/int-rep src2/int-rep src3/int-rep src4/int-rep
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literal: rep ;
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FOLDABLE-INSN: ##select-vector
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def: dst/int-rep
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use: src
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literal: n rep ;
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FOLDABLE-INSN: ##shuffle-vector
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def: dst
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use: src shuffle
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literal: rep ;
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FOLDABLE-INSN: ##shuffle-vector-halves-imm
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def: dst
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use: src1 src2
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literal: shuffle rep ;
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FOLDABLE-INSN: ##shuffle-vector-imm
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def: dst
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use: src
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literal: shuffle rep ;
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FOLDABLE-INSN: ##tail>head-vector
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##merge-vector-head
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##merge-vector-tail
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##float-pack-vector
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##signed-pack-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##unsigned-pack-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##unpack-vector-head
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##unpack-vector-tail
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##integer>float-vector
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##float>integer-vector
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##compare-vector
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def: dst
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use: src1 src2
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literal: rep cc ;
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FOLDABLE-INSN: ##move-vector-mask
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def: dst/int-rep
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##test-vector
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def: dst/tagged-rep
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use: src1
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temp: temp/int-rep
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literal: rep vcc ;
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VREG-INSN: ##test-vector-branch
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use: src1
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temp: temp/int-rep
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literal: rep vcc ;
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FOLDABLE-INSN: ##add-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##saturated-add-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##add-sub-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##sub-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##saturated-sub-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##mul-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##mul-high-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##mul-horizontal-add-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##saturated-mul-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##div-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##min-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##max-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##avg-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##dot-vector
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def: dst/scalar-rep
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##sad-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##horizontal-add-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##horizontal-sub-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##horizontal-shl-vector-imm
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def: dst
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use: src1
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literal: src2 rep ;
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FOLDABLE-INSN: ##horizontal-shr-vector-imm
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def: dst
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use: src1
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literal: src2 rep ;
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FOLDABLE-INSN: ##abs-vector
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##sqrt-vector
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##and-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##andn-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##or-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##xor-vector
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def: dst
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use: src1 src2
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literal: rep ;
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FOLDABLE-INSN: ##not-vector
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def: dst
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use: src
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literal: rep ;
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FOLDABLE-INSN: ##shl-vector-imm
 | 
						|
def: dst
 | 
						|
use: src1
 | 
						|
literal: src2 rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##shr-vector-imm
 | 
						|
def: dst
 | 
						|
use: src1
 | 
						|
literal: src2 rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##shl-vector
 | 
						|
def: dst
 | 
						|
use: src1 src2/int-scalar-rep
 | 
						|
literal: rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##shr-vector
 | 
						|
def: dst
 | 
						|
use: src1 src2/int-scalar-rep
 | 
						|
literal: rep ;
 | 
						|
 | 
						|
! Scalar/vector conversion
 | 
						|
FOLDABLE-INSN: ##scalar>integer
 | 
						|
def: dst/int-rep
 | 
						|
use: src
 | 
						|
literal: rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##integer>scalar
 | 
						|
def: dst
 | 
						|
use: src/int-rep
 | 
						|
literal: rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##vector>scalar
 | 
						|
def: dst/scalar-rep
 | 
						|
use: src
 | 
						|
literal: rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##scalar>vector
 | 
						|
def: dst
 | 
						|
use: src/scalar-rep
 | 
						|
literal: rep ;
 | 
						|
 | 
						|
! Boxing and unboxing aliens
 | 
						|
FOLDABLE-INSN: ##box-alien
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src/int-rep
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##box-displaced-alien
 | 
						|
def: dst/tagged-rep
 | 
						|
use: displacement/int-rep base/tagged-rep
 | 
						|
temp: temp/int-rep
 | 
						|
literal: base-class ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##unbox-any-c-ptr
 | 
						|
def: dst/int-rep
 | 
						|
use: src/tagged-rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##unbox-alien
 | 
						|
def: dst/int-rep
 | 
						|
use: src/tagged-rep ;
 | 
						|
 | 
						|
! Zero-extending and sign-extending integers
 | 
						|
FOLDABLE-INSN: ##convert-integer
 | 
						|
def: dst/int-rep
 | 
						|
use: src/int-rep
 | 
						|
literal: c-type ;
 | 
						|
 | 
						|
! Raw memory accessors
 | 
						|
FLUSHABLE-INSN: ##load-memory
 | 
						|
def: dst
 | 
						|
use: base/int-rep displacement/int-rep
 | 
						|
literal: scale offset rep c-type ;
 | 
						|
 | 
						|
FLUSHABLE-INSN: ##load-memory-imm
 | 
						|
def: dst
 | 
						|
use: base/int-rep
 | 
						|
literal: offset rep c-type ;
 | 
						|
 | 
						|
VREG-INSN: ##store-memory
 | 
						|
use: src base/int-rep displacement/int-rep
 | 
						|
literal: scale offset rep c-type ;
 | 
						|
 | 
						|
VREG-INSN: ##store-memory-imm
 | 
						|
use: src base/int-rep
 | 
						|
literal: offset rep c-type ;
 | 
						|
 | 
						|
! Memory allocation
 | 
						|
FLUSHABLE-INSN: ##allot
 | 
						|
def: dst/tagged-rep
 | 
						|
literal: size class-of
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
VREG-INSN: ##write-barrier
 | 
						|
use: src/tagged-rep slot/int-rep
 | 
						|
literal: scale tag
 | 
						|
temp: temp1/int-rep temp2/int-rep ;
 | 
						|
 | 
						|
VREG-INSN: ##write-barrier-imm
 | 
						|
use: src/tagged-rep
 | 
						|
literal: slot tag
 | 
						|
temp: temp1/int-rep temp2/int-rep ;
 | 
						|
 | 
						|
FLUSHABLE-INSN: ##alien-global
 | 
						|
def: dst/int-rep
 | 
						|
literal: symbol library ;
 | 
						|
 | 
						|
FLUSHABLE-INSN: ##vm-field
 | 
						|
def: dst/tagged-rep
 | 
						|
literal: offset ;
 | 
						|
 | 
						|
VREG-INSN: ##set-vm-field
 | 
						|
use: src/tagged-rep
 | 
						|
literal: offset ;
 | 
						|
 | 
						|
! FFI
 | 
						|
FOLDABLE-INSN: ##unbox
 | 
						|
def: dst
 | 
						|
use: src/tagged-rep
 | 
						|
literal: unboxer rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##unbox-long-long
 | 
						|
def: dst1/int-rep dst2/int-rep
 | 
						|
use: src/tagged-rep
 | 
						|
literal: unboxer ;
 | 
						|
 | 
						|
FLUSHABLE-INSN: ##local-allot
 | 
						|
def: dst/int-rep
 | 
						|
literal: size align offset ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##box
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src
 | 
						|
literal: boxer rep gc-map ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##box-long-long
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/int-rep src2/int-rep
 | 
						|
literal: boxer gc-map ;
 | 
						|
 | 
						|
! Alien call inputs and outputs are arrays of triples with shape
 | 
						|
! { vreg rep stack#/reg }
 | 
						|
 | 
						|
VREG-INSN: ##alien-invoke
 | 
						|
literal: varargs? reg-inputs stack-inputs reg-outputs dead-outputs cleanup stack-size symbols dll gc-map ;
 | 
						|
 | 
						|
VREG-INSN: ##alien-indirect
 | 
						|
use: src/int-rep
 | 
						|
literal: varargs? reg-inputs stack-inputs reg-outputs dead-outputs cleanup stack-size gc-map ;
 | 
						|
 | 
						|
VREG-INSN: ##alien-assembly
 | 
						|
literal: varargs? reg-inputs stack-inputs reg-outputs dead-outputs cleanup stack-size quot ;
 | 
						|
 | 
						|
VREG-INSN: ##callback-inputs
 | 
						|
literal: reg-outputs stack-outputs ;
 | 
						|
 | 
						|
VREG-INSN: ##callback-outputs
 | 
						|
literal: reg-inputs ;
 | 
						|
 | 
						|
! Control flow
 | 
						|
FLUSHABLE-INSN: ##phi
 | 
						|
def: dst
 | 
						|
literal: inputs ;
 | 
						|
 | 
						|
INSN: ##branch ;
 | 
						|
 | 
						|
! Tagged conditionals
 | 
						|
VREG-INSN: ##compare-branch
 | 
						|
use: src1/tagged-rep src2/tagged-rep
 | 
						|
literal: cc ;
 | 
						|
 | 
						|
VREG-INSN: ##compare-imm-branch
 | 
						|
use: src1/tagged-rep
 | 
						|
literal: src2 cc ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##compare
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/tagged-rep src2/tagged-rep
 | 
						|
literal: cc
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##compare-imm
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/tagged-rep
 | 
						|
literal: src2 cc
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
! Integer conditionals
 | 
						|
VREG-INSN: ##compare-integer-branch
 | 
						|
use: src1/int-rep src2/int-rep
 | 
						|
literal: cc ;
 | 
						|
 | 
						|
VREG-INSN: ##compare-integer-imm-branch
 | 
						|
use: src1/int-rep
 | 
						|
literal: src2 cc ;
 | 
						|
 | 
						|
VREG-INSN: ##test-branch
 | 
						|
use: src1/int-rep src2/int-rep
 | 
						|
literal: cc ;
 | 
						|
 | 
						|
VREG-INSN: ##test-imm-branch
 | 
						|
use: src1/int-rep
 | 
						|
literal: src2 cc ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##compare-integer
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/int-rep src2/int-rep
 | 
						|
literal: cc
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##compare-integer-imm
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/int-rep
 | 
						|
literal: src2 cc
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##test
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/int-rep src2/int-rep
 | 
						|
literal: cc
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##test-imm
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/int-rep
 | 
						|
literal: src2 cc
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
! Float conditionals
 | 
						|
VREG-INSN: ##compare-float-ordered-branch
 | 
						|
use: src1/double-rep src2/double-rep
 | 
						|
literal: cc ;
 | 
						|
 | 
						|
VREG-INSN: ##compare-float-unordered-branch
 | 
						|
use: src1/double-rep src2/double-rep
 | 
						|
literal: cc ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##compare-float-ordered
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/double-rep src2/double-rep
 | 
						|
literal: cc
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
FOLDABLE-INSN: ##compare-float-unordered
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/double-rep src2/double-rep
 | 
						|
literal: cc
 | 
						|
temp: temp/int-rep ;
 | 
						|
 | 
						|
! Overflowing arithmetic
 | 
						|
VREG-INSN: ##fixnum-add
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/tagged-rep src2/tagged-rep
 | 
						|
literal: cc ;
 | 
						|
 | 
						|
VREG-INSN: ##fixnum-sub
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/tagged-rep src2/tagged-rep
 | 
						|
literal: cc ;
 | 
						|
 | 
						|
VREG-INSN: ##fixnum-mul
 | 
						|
def: dst/tagged-rep
 | 
						|
use: src1/tagged-rep src2/int-rep
 | 
						|
literal: cc ;
 | 
						|
 | 
						|
VREG-INSN: ##save-context
 | 
						|
temp: temp1/int-rep temp2/int-rep ;
 | 
						|
 | 
						|
! GC checks
 | 
						|
VREG-INSN: ##check-nursery-branch
 | 
						|
literal: size cc
 | 
						|
temp: temp1/int-rep temp2/int-rep ;
 | 
						|
 | 
						|
INSN: ##call-gc
 | 
						|
literal: gc-map ;
 | 
						|
 | 
						|
! Spills and reloads, inserted by register allocator
 | 
						|
TUPLE: spill-slot { n integer } ;
 | 
						|
C: <spill-slot> spill-slot
 | 
						|
 | 
						|
VREG-INSN: ##spill
 | 
						|
use: src
 | 
						|
literal: rep dst ;
 | 
						|
 | 
						|
VREG-INSN: ##reload
 | 
						|
def: dst
 | 
						|
literal: rep src ;
 | 
						|
 | 
						|
UNION: allocation-insn
 | 
						|
    ##allot
 | 
						|
    ##box-alien
 | 
						|
    ##box-displaced-alien ;
 | 
						|
 | 
						|
UNION: conditional-branch-insn
 | 
						|
    ##compare-branch
 | 
						|
    ##compare-imm-branch
 | 
						|
    ##compare-integer-branch
 | 
						|
    ##compare-integer-imm-branch
 | 
						|
    ##test-branch
 | 
						|
    ##test-imm-branch
 | 
						|
    ##compare-float-ordered-branch
 | 
						|
    ##compare-float-unordered-branch
 | 
						|
    ##test-vector-branch
 | 
						|
    ##check-nursery-branch
 | 
						|
    ##fixnum-add
 | 
						|
    ##fixnum-sub
 | 
						|
    ##fixnum-mul ;
 | 
						|
 | 
						|
! For alias analysis
 | 
						|
UNION: read-insn ##slot ##slot-imm ##vm-field ##alien-global ;
 | 
						|
UNION: write-insn ##set-slot ##set-slot-imm ##set-vm-field ;
 | 
						|
 | 
						|
UNION: alien-call-insn
 | 
						|
    ##alien-assembly
 | 
						|
    ##alien-indirect
 | 
						|
    ##alien-invoke ;
 | 
						|
 | 
						|
UNION: gc-map-insn
 | 
						|
    ##call-gc
 | 
						|
    ##box
 | 
						|
    ##box-long-long
 | 
						|
    ##alien-indirect
 | 
						|
    ##alien-invoke ;
 | 
						|
 | 
						|
M: gc-map-insn clone call-next-method [ clone ] change-gc-map ;
 | 
						|
 | 
						|
TUPLE: gc-map gc-roots derived-roots ;
 | 
						|
 | 
						|
: <gc-map> ( -- gc-map ) gc-map new ;
 | 
						|
 | 
						|
UNION: def-is-use-insn
 | 
						|
    ##box-alien
 | 
						|
    ##box-displaced-alien
 | 
						|
    ##unbox-any-c-ptr ;
 |