sparc/vm/copy_sparc.hpp

16  * 2 along with this work; if not, write to the Free Software Foundation,
30 static void pd_conjoint_words(HeapWord* from, HeapWord* to, size_t count) {
31   (void)memmove(to, from, count * HeapWordSize);
34 static void pd_disjoint_words(HeapWord* from, HeapWord* to, size_t count) {
36   case 8:  to[7] = from[7];
37   case 7:  to[6] = from[6];
38   case 6:  to[5] = from[5];
39   case 5:  to[4] = from[4];
40   case 4:  to[3] = from[3];
41   case 3:  to[2] = from[2];
42   case 2:  to[1] = from[1];
43   case 1:  to[0] = from[0];
45   default: (void)memcpy(to, from, count * HeapWordSize);
50 static void pd_disjoint_words_atomic(HeapWord* from, HeapWord* to, size_t count) {
52   case 8:  to[7] = from[7];
53   case 7:  to[6] = from[6];
54   case 6:  to[5] = from[5];
55   case 5:  to[4] = from[4];
56   case 4:  to[3] = from[3];
57   case 3:  to[2] = from[2];
58   case 2:  to[1] = from[1];
59   case 1:  to[0] = from[0];
62              *to++ = *from++;
68 static void pd_aligned_conjoint_words(HeapWord* from, HeapWord* to, size_t count) {
69   (void)memmove(to, from, count * HeapWordSize);
72 static void pd_aligned_disjoint_words(HeapWord* from, HeapWord* to, size_t count) {
73   pd_disjoint_words(from, to, count);
76 static void pd_conjoint_bytes(void* from, void* to, size_t count) {
77   (void)memmove(to, from, count);
80 static void pd_conjoint_bytes_atomic(void* from, void* to, size_t count) {
81   (void)memmove(to, from, count);
84 static void pd_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) {
85   if (from > to) {
88       *to++ = *from++;
92     to   += count - 1;
95       *to-- = *from--;
100 static void pd_conjoint_jints_atomic(jint* from, jint* to, size_t count) {
101   if (from > to) {
104       *to++ = *from++;
108     to   += count - 1;
111       *to-- = *from--;
116 static void pd_conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) {
118   pd_conjoint_oops_atomic((oop*)from, (oop*)to, count);
121 static void pd_conjoint_oops_atomic(oop* from, oop* to, size_t count) {
123   if (from > to) {
126       *to++ = *from++;
130     to   += count - 1;
133       *to-- = *from--;
138 static void pd_arrayof_conjoint_bytes(HeapWord* from, HeapWord* to, size_t count) {
139   pd_conjoint_bytes_atomic(from, to, count);
142 static void pd_arrayof_conjoint_jshorts(HeapWord* from, HeapWord* to, size_t count) {
143   pd_conjoint_jshorts_atomic((jshort*)from, (jshort*)to, count);
146 static void pd_arrayof_conjoint_jints(HeapWord* from, HeapWord* to, size_t count) {
147   pd_conjoint_jints_atomic((jint*)from, (jint*)to, count);
150 static void pd_arrayof_conjoint_jlongs(HeapWord* from, HeapWord* to, size_t count) {
151   pd_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count);
154 static void pd_arrayof_conjoint_oops(HeapWord* from, HeapWord* to, size_t count) {
155   pd_conjoint_oops_atomic((oop*)from, (oop*)to, count);
161   julong* to = (julong*)tohw;
164     *to++ = v;
168 typedef void (*_zero_Fn)(HeapWord* to, size_t count);
181    julong* to = (julong*)tohw;
183    // If count is odd, odd will be equal to 1 on 32-bit platform
184    // and be equal to 0 on 64-bit platform.
189    while (to <= end) {
191      *to++ = v;
193    assert(count == odd, "bad bounds on loop filling to aligned words");
195      *((juint*)to) = value;
201 static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
202   (void)memset(to, value, count);
209 static void pd_zero_to_bytes(void* to, size_t count) {
210   (void)memset(to, 0, count);