/usr/share/gocode/src/github.com/dgryski/go-bits/ctz_amd64.s is in golang-github-dgryski-go-bits-dev 0.0~git20151205.0.86c69b3-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | // +build amd64,!appengine
// func Ctz(x uint64) uint64
TEXT ·Ctz(SB),4,$0-16
BSFQ x+0(FP), AX
JZ zero
MOVQ AX, ret+8(FP)
RET
zero:
MOVQ $64, ret+8(FP)
RET
|