1 // run 2 3 // Copyright 2014 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 // Issue 7944: 8 // Liveness bitmaps said b was live at call to g, 9 // but no one told the register optimizer. 10 11 package main 12 13 import "runtime" 14 15 func f(b []byte) { 16 for len(b) > 0 { 17 n := len(b) 18 n = f1(n) 19 f2(b[n:]) 20 b = b[n:] 21 } 22 g() 23 } 24 25 func f1(n int) int { 26 runtime.GC() 27 return n 28 } 29 30 func f2(b []byte) { 31 runtime.GC() 32 } 33 34 func g() { 35 runtime.GC() 36 } 37 38 func main() { 39 f(make([]byte, 100)) 40 } 41
