60 lines
1.6 KiB
Factor
60 lines
1.6 KiB
Factor
! Copyright (C) 2008, 2009 Slava Pestov, Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: sequences accessors layouts kernel math namespaces
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combinators fry
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compiler.tree.propagation.info
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compiler.cfg.hats
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compiler.cfg.stacks
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compiler.cfg.instructions
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compiler.cfg.utilities
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compiler.cfg.registers
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compiler.cfg.comparisons ;
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IN: compiler.cfg.intrinsics.fixnum
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: emit-both-fixnums? ( -- )
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2inputs
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^^or
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tag-mask get ^^and-imm
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0 cc= ^^compare-imm
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ds-push ;
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: tag-literal ( n -- tagged )
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literal>> [ tag-fixnum ] [ \ f tag-number ] if* ;
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: emit-fixnum-op ( insn -- dst )
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[ 2inputs ] dip call ds-push ; inline
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: emit-fixnum-shift-fast ( node -- )
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dup node-input-infos dup second value-info-small-fixnum? [
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nip
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[ ds-drop ds-pop ] dip
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second literal>> dup sgn {
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{ -1 [ neg tag-bits get + ^^sar-imm ^^tag-fixnum ] }
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{ 0 [ drop ] }
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{ 1 [ ^^shl-imm ] }
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} case
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ds-push
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] [ drop emit-primitive ] if ;
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: emit-fixnum-bitnot ( -- )
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ds-pop ^^not tag-mask get ^^xor-imm ds-push ;
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: emit-fixnum-log2 ( -- )
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ds-pop ^^log2 tag-bits get ^^sub-imm ^^tag-fixnum ds-push ;
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: emit-fixnum*fast ( -- )
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2inputs ^^untag-fixnum ^^mul ds-push ;
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: emit-fixnum-comparison ( cc -- )
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'[ _ ^^compare ] emit-fixnum-op ;
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: emit-bignum>fixnum ( -- )
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ds-pop ^^bignum>integer ^^tag-fixnum ds-push ;
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: emit-fixnum>bignum ( -- )
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ds-pop ^^untag-fixnum ^^integer>bignum ds-push ;
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: emit-fixnum-overflow-op ( quot -- next )
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[ 2inputs 1 ##inc-d ] dip call ##branch
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begin-basic-block ; inline
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