3 // Copyright 2018 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.
11 // Check small copies are replaced with moves.
14 x := [...]byte{1, 2, 3, 4}
19 // ppc64x:-".*memmove"
24 x := [...]byte{1, 2, 3, 4, 5, 6, 7}
28 // ppc64x:-".*memmove"
33 x := [...]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
41 // Check that large disjoint copies are replaced with moves.
43 func moveDisjointStack32() {
45 // ppc64x:-".*memmove"
46 // ppc64x/power8:"LXVD2X",-"ADD",-"BC"
47 // ppc64x/power9:"LXV",-"LXVD2X",-"ADD",-"BC"
52 func moveDisjointStack64() {
54 // ppc64x:-".*memmove"
55 // ppc64x/power8:"LXVD2X","ADD","BC"
56 // ppc64x/power9:"LXV",-"LXVD2X",-"ADD",-"BC"
61 func moveDisjointStack() {
65 // ppc64x:-".*memmove"
66 // ppc64x/power8:"LXVD2X"
67 // ppc64x/power9:"LXV",-"LXVD2X"
72 func moveDisjointArg(b *[256]byte) {
76 // ppc64x:-".*memmove"
77 // ppc64x/power8:"LXVD2X"
78 // ppc64x/power9:"LXV",-"LXVD2X"
83 func moveDisjointNoOverlap(a *[256]byte) {
86 // ppc64x:-".*memmove"
87 // ppc64x/power8:"LXVD2X"
88 // ppc64x/power9:"LXV",-"LXVD2X"
92 // Check arch-specific memmove lowering. See issue 41662 fot details
94 func moveArchLowering1(b []byte, x *[1]byte) {
98 // ppc64x:-".*memmove"
102 func moveArchLowering2(b []byte, x *[2]byte) {
104 // amd64:-".*memmove"
105 // arm64:-".*memmove"
106 // ppc64x:-".*memmove"
110 func moveArchLowering4(b []byte, x *[4]byte) {
112 // amd64:-".*memmove"
113 // arm64:-".*memmove"
114 // ppc64x:-".*memmove"
118 func moveArchLowering8(b []byte, x *[8]byte) {
120 // amd64:-".*memmove"
121 // arm64:-".*memmove"
122 // ppc64x:-".*memmove"
126 func moveArchLowering16(b []byte, x *[16]byte) {
128 // amd64:-".*memmove"
132 // Check that no branches are generated when the pointers are [not] equal.
135 // amd64:-"JEQ",-"JNE"
136 // ppc64x:-"BEQ",-"BNE"
137 // s390x:-"BEQ",-"BNE"
141 func ptrOneOffset() {
142 // amd64:-"JEQ",-"JNE"
143 // ppc64x:-"BEQ",-"BNE"
144 // s390x:-"BEQ",-"BNE"
148 func ptrBothOffset() {
149 // amd64:-"JEQ",-"JNE"
150 // ppc64x:-"BEQ",-"BNE"
151 // s390x:-"BEQ",-"BNE"