54 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Factor
		
	
	
			
		
		
	
	
			54 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Factor
		
	
	
! Copyright (C) 2008, 2010 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors classes.algebra classes.struct
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compiler.cfg.builder.blocks compiler.cfg.comparisons compiler.cfg.hats
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compiler.cfg.instructions compiler.cfg.stacks compiler.constants
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compiler.tree.propagation.info cpu.architecture kernel layouts math
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namespaces sequences vm ;
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IN: compiler.cfg.intrinsics.misc
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: emit-tag ( -- )
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    [ ^^tagged>integer tag-mask get ^^and-imm ] unary-op ;
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: emit-eq ( node -- )
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    node-input-infos first2 [ class>> fixnum class<= ] both?
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    [ [ cc= ^^compare-integer ] binary-op ] [ [ cc= ^^compare ] binary-op ] if ;
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: emit-special-object ( block node -- block' )
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    dup node-input-infos first literal>> [
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        ds-drop
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        vm-special-object-offset ^^vm-field
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        ds-push
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    ] [ emit-primitive ] ?if ;
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: emit-set-special-object ( block node -- block' )
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    dup node-input-infos second literal>> [
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        ds-drop
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        [ ds-pop ] dip vm-special-object-offset ##set-vm-field,
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    ] [ emit-primitive ] ?if ;
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: context-object-offset ( n -- n )
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    cells "context-objects" context offset-of + ;
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: emit-context-object ( block node -- block' )
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    dup node-input-infos first literal>> [
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        "ctx" vm offset-of ^^vm-field
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        ds-drop swap context-object-offset cell /i 0 ^^slot-imm ds-push
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    ] [ emit-primitive ] ?if ;
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: emit-identity-hashcode ( -- )
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    [
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        ^^tagged>integer
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        tag-mask get bitnot ^^load-integer ^^and
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        0 int-rep f ^^load-memory-imm
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        hashcode-shift ^^shr-imm
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    ] unary-op ;
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: emit-local-allot ( block node -- block' )
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    dup node-input-infos first2 [ literal>> ] bi@ 2dup [ integer? ] both?
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    [ ds-drop ds-drop f ^^local-allot ^^box-alien ds-push drop ]
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    [ 2drop emit-primitive ] if ;
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: emit-cleanup-allot ( block node -- block' )
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    drop [ drop ##no-tco, ] emit-trivial-block ;
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