Mercurial > hg > truffle
view src/os_cpu/windows_x86/vm/copy_windows_x86.inline.hpp @ 1483:ba37b9335e1e
New option "-graal" that sets up the correct boot class path and C1X options using only the two environment variables MAXINE and GRAAL.
This greatly simplifies command line arguments necessary to start the Graal VM.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
---|---|
date | Mon, 29 Nov 2010 16:58:26 +0100 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
line wrap: on
line source
/* * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ static void pd_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { (void)memmove(to, from, count * HeapWordSize); } static void pd_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { #ifdef AMD64 switch (count) { case 8: to[7] = from[7]; case 7: to[6] = from[6]; case 6: to[5] = from[5]; case 5: to[4] = from[4]; case 4: to[3] = from[3]; case 3: to[2] = from[2]; case 2: to[1] = from[1]; case 1: to[0] = from[0]; case 0: break; default: (void)memcpy(to, from, count * HeapWordSize); break; } #else (void)memcpy(to, from, count * HeapWordSize); #endif // AMD64 } static void pd_disjoint_words_atomic(HeapWord* from, HeapWord* to, size_t count) { switch (count) { case 8: to[7] = from[7]; case 7: to[6] = from[6]; case 6: to[5] = from[5]; case 5: to[4] = from[4]; case 4: to[3] = from[3]; case 3: to[2] = from[2]; case 2: to[1] = from[1]; case 1: to[0] = from[0]; case 0: break; default: while (count-- > 0) { *to++ = *from++; } break; } } static void pd_aligned_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { (void)memmove(to, from, count * HeapWordSize); } static void pd_aligned_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { pd_disjoint_words(from, to, count); } static void pd_conjoint_bytes(void* from, void* to, size_t count) { (void)memmove(to, from, count); } static void pd_conjoint_bytes_atomic(void* from, void* to, size_t count) { pd_conjoint_bytes(from, to, count); } static void pd_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) { // FIXME (void)memmove(to, from, count << LogBytesPerShort); } static void pd_conjoint_jints_atomic(jint* from, jint* to, size_t count) { // FIXME (void)memmove(to, from, count << LogBytesPerInt); } static void pd_conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) { #ifdef AMD64 assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); pd_conjoint_oops_atomic((oop*)from, (oop*)to, count); #else // Guarantee use of fild/fistp or xmm regs via some asm code, because compilers won't. __asm { mov eax, from; mov edx, to; mov ecx, count; cmp eax, edx; jbe downtest; jmp uptest; up: fild qword ptr [eax]; fistp qword ptr [edx]; add eax, 8; add edx, 8; uptest: sub ecx, 1; jge up; jmp done; down: fild qword ptr [eax][ecx*8]; fistp qword ptr [edx][ecx*8]; downtest: sub ecx, 1; jge down; done:; } #endif // AMD64 } static void pd_conjoint_oops_atomic(oop* from, oop* to, size_t count) { // Do better than this: inline memmove body NEEDS CLEANUP if (from > to) { while (count-- > 0) { // Copy forwards *to++ = *from++; } } else { from += count - 1; to += count - 1; while (count-- > 0) { // Copy backwards *to-- = *from--; } } } static void pd_arrayof_conjoint_bytes(HeapWord* from, HeapWord* to, size_t count) { #ifdef AMD64 pd_conjoint_bytes_atomic(from, to, count); #else pd_conjoint_bytes(from, to, count); #endif // AMD64 } static void pd_arrayof_conjoint_jshorts(HeapWord* from, HeapWord* to, size_t count) { pd_conjoint_jshorts_atomic((jshort*)from, (jshort*)to, count); } static void pd_arrayof_conjoint_jints(HeapWord* from, HeapWord* to, size_t count) { pd_conjoint_jints_atomic((jint*)from, (jint*)to, count); } static void pd_arrayof_conjoint_jlongs(HeapWord* from, HeapWord* to, size_t count) { pd_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count); } static void pd_arrayof_conjoint_oops(HeapWord* from, HeapWord* to, size_t count) { pd_conjoint_oops_atomic((oop*)from, (oop*)to, count); }