davecheney

package b

import "testing"

// SIZE=1000 results (core i5 late 2011 mac mini, 10.7.3)
// % go test -v -run='XXX' -bench='.' 
// PASS
// BenchmarkUpdate   500000              2996 ns/op
// BenchmarkManual   500000              4642 ns/op
// BenchmarkUnroll  1000000              2824 ns/op

davecheney

package b

import "testing"

// SIZE=1000 results (core i5 late 2011 mac mini, 10.7.3) amd64
// % go test -v -run='XXX' -bench='.' 
// PASS
// BenchmarkUpdate	  500000	      3064 ns/op
// BenchmarkManual	  500000	      5143 ns/op
// BenchmarkUnroll	 1000000	      2927 ns/op

davecheney

// Inferno's libkern/memmove-arm.s
// http://code.google.com/p/inferno-os/source/browse/libkern/memmove-arm.s
//
//         Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
//         Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com).  All rights reserved.
//         Portions Copyright 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights

davecheney

package main

import (
        "log"
        "time"
)

const TODO = 20000000

type Ob struct {

davecheney

diff -r d2213960ade2 src/cmd/5l/asm.c
--- a/src/cmd/5l/asm.c	Sat Jul 14 15:59:52 2012 +0400
+++ b/src/cmd/5l/asm.c	Sun Jul 15 19:45:39 2012 +1000
@@ -33,6 +33,7 @@
 #include	"l.h"
 #include	"../ld/lib.h"
 #include	"../ld/elf.h"
+#include	"../ld/dwarf.h"
 
 static Prog *PP;

davecheney

package main
/*
enum Const {
        ZERO,
        ONE,
};
*/
import "C"
import "fmt"

davecheney

package main

import (
        "github.com/howeyc/fsnotify"
        "log"
)

func main() {
        watcher, err := fsnotify.NewWatcher()
        if err != nil {

davecheney

#!/bin/bash

go test -c
PKG=$(basename $(pwd))
set -e

while true ; do
        export GOMAXPROCS=$[ 1 + $[ RANDOM % 128 ]]
        ./$PKG.test $@ 2>&1
done

davecheney

--- prog list "addr" ---
0000 (/home/dfc/src/addr.go:5) TEXT     addr+0(SB),$0-16
0001 (/home/dfc/src/addr.go:6) MOVW     $s+0(FP),R0
0002 (/home/dfc/src/addr.go:6) MOVW     4(R0),R1
0003 (/home/dfc/src/addr.go:6) CMP      $2,R1,
0004 (/home/dfc/src/addr.go:6) BHI      ,6(APC)
0005 (/home/dfc/src/addr.go:6) BL       ,runtime.panicindex+0(SB)
0006 (/home/dfc/src/addr.go:6) MOVW     0(R0),R0
0007 (/home/dfc/src/addr.go:6) ADD      $8,R0
0008 (/home/dfc/src/addr.go:6) MOVW     R0,.noname+12(FP)

davecheney

                        d.output[d.o] = uint8(code)
   42ed4:       e1a00806        lsl     r0, r6, #16
   42ed8:       e1a00820        lsr     r0, r0, #16
   42edc:       e20010ff        and     r1, r0, #255    ; 0xff
   42ee0:       e20150ff        and     r5, r1, #255    ; 0xff
   42ee4:       e5941000        ldr     r1, [r4]
   42ee8:       e59fb8c0        ldr     fp, [pc, #2240] ; 437b0 <compress/lzw.(*decoder).decode+0xa00>
   42eec:       e794300b        ldr     r3, [r4, fp]
   42ef0:       e5941000        ldr     r1, [r4]
   42ef4:       e5942000        ldr     r2, [r4]