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path: root/libgo/go/runtime/memmove_test.go
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Diffstat (limited to 'libgo/go/runtime/memmove_test.go')
-rw-r--r--libgo/go/runtime/memmove_test.go295
1 files changed, 0 insertions, 295 deletions
diff --git a/libgo/go/runtime/memmove_test.go b/libgo/go/runtime/memmove_test.go
deleted file mode 100644
index ffda4fe6c53..00000000000
--- a/libgo/go/runtime/memmove_test.go
+++ /dev/null
@@ -1,295 +0,0 @@
-// Copyright 2013 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.
-
-package runtime_test
-
-import (
- . "runtime"
- "testing"
-)
-
-func TestMemmove(t *testing.T) {
- size := 256
- if testing.Short() {
- size = 128 + 16
- }
- src := make([]byte, size)
- dst := make([]byte, size)
- for i := 0; i < size; i++ {
- src[i] = byte(128 + (i & 127))
- }
- for i := 0; i < size; i++ {
- dst[i] = byte(i & 127)
- }
- for n := 0; n <= size; n++ {
- for x := 0; x <= size-n; x++ { // offset in src
- for y := 0; y <= size-n; y++ { // offset in dst
- copy(dst[y:y+n], src[x:x+n])
- for i := 0; i < y; i++ {
- if dst[i] != byte(i&127) {
- t.Fatalf("prefix dst[%d] = %d", i, dst[i])
- }
- }
- for i := y; i < y+n; i++ {
- if dst[i] != byte(128+((i-y+x)&127)) {
- t.Fatalf("copied dst[%d] = %d", i, dst[i])
- }
- dst[i] = byte(i & 127) // reset dst
- }
- for i := y + n; i < size; i++ {
- if dst[i] != byte(i&127) {
- t.Fatalf("suffix dst[%d] = %d", i, dst[i])
- }
- }
- }
- }
- }
-}
-
-func TestMemmoveAlias(t *testing.T) {
- size := 256
- if testing.Short() {
- size = 128 + 16
- }
- buf := make([]byte, size)
- for i := 0; i < size; i++ {
- buf[i] = byte(i)
- }
- for n := 0; n <= size; n++ {
- for x := 0; x <= size-n; x++ { // src offset
- for y := 0; y <= size-n; y++ { // dst offset
- copy(buf[y:y+n], buf[x:x+n])
- for i := 0; i < y; i++ {
- if buf[i] != byte(i) {
- t.Fatalf("prefix buf[%d] = %d", i, buf[i])
- }
- }
- for i := y; i < y+n; i++ {
- if buf[i] != byte(i-y+x) {
- t.Fatalf("copied buf[%d] = %d", i, buf[i])
- }
- buf[i] = byte(i) // reset buf
- }
- for i := y + n; i < size; i++ {
- if buf[i] != byte(i) {
- t.Fatalf("suffix buf[%d] = %d", i, buf[i])
- }
- }
- }
- }
- }
-}
-
-func bmMemmove(b *testing.B, n int) {
- x := make([]byte, n)
- y := make([]byte, n)
- b.SetBytes(int64(n))
- for i := 0; i < b.N; i++ {
- copy(x, y)
- }
-}
-
-func BenchmarkMemmove0(b *testing.B) { bmMemmove(b, 0) }
-func BenchmarkMemmove1(b *testing.B) { bmMemmove(b, 1) }
-func BenchmarkMemmove2(b *testing.B) { bmMemmove(b, 2) }
-func BenchmarkMemmove3(b *testing.B) { bmMemmove(b, 3) }
-func BenchmarkMemmove4(b *testing.B) { bmMemmove(b, 4) }
-func BenchmarkMemmove5(b *testing.B) { bmMemmove(b, 5) }
-func BenchmarkMemmove6(b *testing.B) { bmMemmove(b, 6) }
-func BenchmarkMemmove7(b *testing.B) { bmMemmove(b, 7) }
-func BenchmarkMemmove8(b *testing.B) { bmMemmove(b, 8) }
-func BenchmarkMemmove9(b *testing.B) { bmMemmove(b, 9) }
-func BenchmarkMemmove10(b *testing.B) { bmMemmove(b, 10) }
-func BenchmarkMemmove11(b *testing.B) { bmMemmove(b, 11) }
-func BenchmarkMemmove12(b *testing.B) { bmMemmove(b, 12) }
-func BenchmarkMemmove13(b *testing.B) { bmMemmove(b, 13) }
-func BenchmarkMemmove14(b *testing.B) { bmMemmove(b, 14) }
-func BenchmarkMemmove15(b *testing.B) { bmMemmove(b, 15) }
-func BenchmarkMemmove16(b *testing.B) { bmMemmove(b, 16) }
-func BenchmarkMemmove32(b *testing.B) { bmMemmove(b, 32) }
-func BenchmarkMemmove64(b *testing.B) { bmMemmove(b, 64) }
-func BenchmarkMemmove128(b *testing.B) { bmMemmove(b, 128) }
-func BenchmarkMemmove256(b *testing.B) { bmMemmove(b, 256) }
-func BenchmarkMemmove512(b *testing.B) { bmMemmove(b, 512) }
-func BenchmarkMemmove1024(b *testing.B) { bmMemmove(b, 1024) }
-func BenchmarkMemmove2048(b *testing.B) { bmMemmove(b, 2048) }
-func BenchmarkMemmove4096(b *testing.B) { bmMemmove(b, 4096) }
-
-func TestMemclr(t *testing.T) {
- size := 512
- if testing.Short() {
- size = 128 + 16
- }
- mem := make([]byte, size)
- for i := 0; i < size; i++ {
- mem[i] = 0xee
- }
- for n := 0; n < size; n++ {
- for x := 0; x <= size-n; x++ { // offset in mem
- MemclrBytes(mem[x : x+n])
- for i := 0; i < x; i++ {
- if mem[i] != 0xee {
- t.Fatalf("overwrite prefix mem[%d] = %d", i, mem[i])
- }
- }
- for i := x; i < x+n; i++ {
- if mem[i] != 0 {
- t.Fatalf("failed clear mem[%d] = %d", i, mem[i])
- }
- mem[i] = 0xee
- }
- for i := x + n; i < size; i++ {
- if mem[i] != 0xee {
- t.Fatalf("overwrite suffix mem[%d] = %d", i, mem[i])
- }
- }
- }
- }
-}
-
-func bmMemclr(b *testing.B, n int) {
- x := make([]byte, n)
- b.SetBytes(int64(n))
- for i := 0; i < b.N; i++ {
- MemclrBytes(x)
- }
-}
-func BenchmarkMemclr5(b *testing.B) { bmMemclr(b, 5) }
-func BenchmarkMemclr16(b *testing.B) { bmMemclr(b, 16) }
-func BenchmarkMemclr64(b *testing.B) { bmMemclr(b, 64) }
-func BenchmarkMemclr256(b *testing.B) { bmMemclr(b, 256) }
-func BenchmarkMemclr4096(b *testing.B) { bmMemclr(b, 4096) }
-func BenchmarkMemclr65536(b *testing.B) { bmMemclr(b, 65536) }
-
-func BenchmarkClearFat8(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [8 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat12(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [12 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat16(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [16 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat24(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [24 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat32(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [32 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat64(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [64 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat128(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [128 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat256(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [256 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat512(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [512 / 4]uint32
- _ = x
- }
-}
-func BenchmarkClearFat1024(b *testing.B) {
- for i := 0; i < b.N; i++ {
- var x [1024 / 4]uint32
- _ = x
- }
-}
-
-func BenchmarkCopyFat8(b *testing.B) {
- var x [8 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat12(b *testing.B) {
- var x [12 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat16(b *testing.B) {
- var x [16 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat24(b *testing.B) {
- var x [24 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat32(b *testing.B) {
- var x [32 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat64(b *testing.B) {
- var x [64 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat128(b *testing.B) {
- var x [128 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat256(b *testing.B) {
- var x [256 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat512(b *testing.B) {
- var x [512 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
-func BenchmarkCopyFat1024(b *testing.B) {
- var x [1024 / 4]uint32
- for i := 0; i < b.N; i++ {
- y := x
- _ = y
- }
-}
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