windows_x86/vm/copy_windows_x86.inline.hpp

16  * 2 along with this work; if not, write to the Free Software Foundation,
28 static void pd_conjoint_words(HeapWord* from, HeapWord* to, size_t count) {
29   (void)memmove(to, from, count * HeapWordSize);
32 static void pd_disjoint_words(HeapWord* from, HeapWord* to, size_t count) {
35   case 8:  to[7] = from[7];
36   case 7:  to[6] = from[6];
37   case 6:  to[5] = from[5];
38   case 5:  to[4] = from[4];
39   case 4:  to[3] = from[3];
40   case 3:  to[2] = from[2];
41   case 2:  to[1] = from[1];
42   case 1:  to[0] = from[0];
45     (void)memcpy(to, from, count * HeapWordSize);
49   (void)memcpy(to, from, count * HeapWordSize);
53 static void pd_disjoint_words_atomic(HeapWord* from, HeapWord* to, size_t count) {
55   case 8:  to[7] = from[7];
56   case 7:  to[6] = from[6];
57   case 6:  to[5] = from[5];
58   case 5:  to[4] = from[4];
59   case 4:  to[3] = from[3];
60   case 3:  to[2] = from[2];
61   case 2:  to[1] = from[1];
62   case 1:  to[0] = from[0];
65              *to++ = *from++;
71 static void pd_aligned_conjoint_words(HeapWord* from, HeapWord* to, size_t count) {
72   (void)memmove(to, from, count * HeapWordSize);
75 static void pd_aligned_disjoint_words(HeapWord* from, HeapWord* to, size_t count) {
76   pd_disjoint_words(from, to, count);
79 static void pd_conjoint_bytes(void* from, void* to, size_t count) {
80   (void)memmove(to, from, count);
83 static void pd_conjoint_bytes_atomic(void* from, void* to, size_t count) {
84   pd_conjoint_bytes(from, to, count);
87 static void pd_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) {
88   if (from > to) {
91       *to++ = *from++;
95     to   += count - 1;
98       *to-- = *from--;
103 static void pd_conjoint_jints_atomic(jint* from, jint* to, size_t count) {
104   if (from > to) {
107       *to++ = *from++;
111     to   += count - 1;
114       *to-- = *from--;
119 static void pd_conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) {
122   pd_conjoint_oops_atomic((oop*)from, (oop*)to, count);
127     mov    edx, to;
152 static void pd_conjoint_oops_atomic(oop* from, oop* to, size_t count) {
154   if (from > to) {
157       *to++ = *from++;
161     to   += count - 1;
164       *to-- = *from--;
169 static void pd_arrayof_conjoint_bytes(HeapWord* from, HeapWord* to, size_t count) {
171   pd_conjoint_bytes_atomic(from, to, count);
173   pd_conjoint_bytes(from, to, count);
177 static void pd_arrayof_conjoint_jshorts(HeapWord* from, HeapWord* to, size_t count) {
178   pd_conjoint_jshorts_atomic((jshort*)from, (jshort*)to, count);
181 static void pd_arrayof_conjoint_jints(HeapWord* from, HeapWord* to, size_t count) {
182   pd_conjoint_jints_atomic((jint*)from, (jint*)to, count);
185 static void pd_arrayof_conjoint_jlongs(HeapWord* from, HeapWord* to, size_t count) {
186   pd_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count);
189 static void pd_arrayof_conjoint_oops(HeapWord* from, HeapWord* to, size_t count) {
190   pd_conjoint_oops_atomic((oop*)from, (oop*)to, count);