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cpu.x86.bootstrap: Rice the jit compiler -- SHR SHL -> AND.

db4
Doug Coleman 2012-09-21 10:17:43 -07:00
parent 34aab78998
commit 4ee63bea7e
1 changed files with 2 additions and 3 deletions
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5
basis/cpu/x86/bootstrap.factor
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@ -4,7 +4,7 @@ USING: bootstrap.image.private compiler.constants
compiler.codegen.relocation compiler.units cpu.x86.assembler compiler.codegen.relocation compiler.units cpu.x86.assembler
cpu.x86.assembler.operands kernel kernel.private layouts cpu.x86.assembler.operands kernel kernel.private layouts
locals locals.backend make math math.private namespaces sequences locals locals.backend make math math.private namespaces sequences
slots.private strings.private vocabs ; slots.private strings.private vocabs math.bitwise ;
IN: bootstrap.x86 IN: bootstrap.x86
big-endian off big-endian off
@ -341,8 +341,7 @@ big-endian off
! turn slot number into offset ! turn slot number into offset
fixnum>slot@ fixnum>slot@
! mask off tag ! mask off tag
temp1 tag-bits get SHR temp1 tag-bits get on-bits bitnot AND
temp1 tag-bits get SHL
! load slot value ! load slot value
temp0 temp1 temp0 [+] MOV temp0 temp1 temp0 [+] MOV
! push to stack ! push to stack