all: power64 is now ppc64

Fixes #8654.

LGTM=austin
R=austin
CC=golang-codereviews
https://golang.org/cl/180600043

1 files changed, 0 insertions, 32 deletions

diff --git a/src/runtime/lfstack_linux_power64x.go b/src/runtime/lfstack_linux_power64x.go
deleted file mode 100644
index 89e389fc72..0000000000
--- a/src/runtime/lfstack_linux_power64x.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2014 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build power64 power64le
-// +build linux
-
-package runtime
-
-import "unsafe"
-
-// On Power64, Linux limits the user address space to 46 bits (see
-// TASK_SIZE_USER64 in the Linux kernel).  This has grown over time,
-// so here we allow 48 bit addresses.
-//
-// In addition to the 16 bits taken from the top, we can take 3 from the
-// bottom, because node must be pointer-aligned, giving a total of 19 bits
-// of count.
-const (
-	addrBits = 48
-	cntBits  = 64 - addrBits + 3
-)
-
-func lfstackPack(node *lfnode, cnt uintptr) uint64 {
-	return uint64(uintptr(unsafe.Pointer(node)))<<(64-addrBits) | uint64(cnt&(1<<cntBits-1))
-}
-
-func lfstackUnpack(val uint64) (node *lfnode, cnt uintptr) {
-	node = (*lfnode)(unsafe.Pointer(uintptr(val >> cntBits << 3)))
-	cnt = uintptr(val & (1<<cntBits - 1))
-	return
-}