From 4ee63bea7ee43f10da65f9e1f6557e5627996bf6 Mon Sep 17 00:00:00 2001 From: Doug Coleman Date: Fri, 21 Sep 2012 10:17:43 -0700 Subject: [PATCH] cpu.x86.bootstrap: Rice the jit compiler -- SHR SHL -> AND. --- basis/cpu/x86/bootstrap.factor | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/basis/cpu/x86/bootstrap.factor b/basis/cpu/x86/bootstrap.factor index 2e33a4d930..2541cee14c 100644 --- a/basis/cpu/x86/bootstrap.factor +++ b/basis/cpu/x86/bootstrap.factor @@ -4,7 +4,7 @@ USING: bootstrap.image.private compiler.constants compiler.codegen.relocation compiler.units cpu.x86.assembler cpu.x86.assembler.operands kernel kernel.private layouts locals locals.backend make math math.private namespaces sequences -slots.private strings.private vocabs ; +slots.private strings.private vocabs math.bitwise ; IN: bootstrap.x86 big-endian off @@ -341,8 +341,7 @@ big-endian off ! turn slot number into offset fixnum>slot@ ! mask off tag - temp1 tag-bits get SHR - temp1 tag-bits get SHL + temp1 tag-bits get on-bits bitnot AND ! load slot value temp0 temp1 temp0 [+] MOV ! push to stack