Mercurial > hg > truffle
comparison src/cpu/x86/vm/c1_MacroAssembler_x86.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author | coleenp |
---|---|
date | Sat, 01 Sep 2012 13:25:18 -0400 |
parents | fd8114661503 |
children | 8e47bac5643a |
comparison
equal
deleted
inserted
replaced
6724:36d1d483d5d6 | 6725:da91efe96a93 |
---|---|
1 /* | 1 /* |
2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
155 } else { | 155 } else { |
156 // This assumes that all prototype bits fit in an int32_t | 156 // This assumes that all prototype bits fit in an int32_t |
157 movptr(Address(obj, oopDesc::mark_offset_in_bytes ()), (int32_t)(intptr_t)markOopDesc::prototype()); | 157 movptr(Address(obj, oopDesc::mark_offset_in_bytes ()), (int32_t)(intptr_t)markOopDesc::prototype()); |
158 } | 158 } |
159 #ifdef _LP64 | 159 #ifdef _LP64 |
160 if (UseCompressedOops) { // Take care not to kill klass | 160 if (UseCompressedKlassPointers) { // Take care not to kill klass |
161 movptr(t1, klass); | 161 movptr(t1, klass); |
162 encode_heap_oop_not_null(t1); | 162 encode_heap_oop_not_null(t1); |
163 movl(Address(obj, oopDesc::klass_offset_in_bytes()), t1); | 163 movl(Address(obj, oopDesc::klass_offset_in_bytes()), t1); |
164 } else | 164 } else |
165 #endif | 165 #endif |
169 | 169 |
170 if (len->is_valid()) { | 170 if (len->is_valid()) { |
171 movl(Address(obj, arrayOopDesc::length_offset_in_bytes()), len); | 171 movl(Address(obj, arrayOopDesc::length_offset_in_bytes()), len); |
172 } | 172 } |
173 #ifdef _LP64 | 173 #ifdef _LP64 |
174 else if (UseCompressedOops) { | 174 else if (UseCompressedKlassPointers) { |
175 xorptr(t1, t1); | 175 xorptr(t1, t1); |
176 store_klass_gap(obj, t1); | 176 store_klass_gap(obj, t1); |
177 } | 177 } |
178 #endif | 178 #endif |
179 } | 179 } |
332 // explicit NULL check not needed since load from [klass_offset] causes a trap | 332 // explicit NULL check not needed since load from [klass_offset] causes a trap |
333 // check against inline cache | 333 // check against inline cache |
334 assert(!MacroAssembler::needs_explicit_null_check(oopDesc::klass_offset_in_bytes()), "must add explicit null check"); | 334 assert(!MacroAssembler::needs_explicit_null_check(oopDesc::klass_offset_in_bytes()), "must add explicit null check"); |
335 int start_offset = offset(); | 335 int start_offset = offset(); |
336 | 336 |
337 if (UseCompressedOops) { | 337 if (UseCompressedKlassPointers) { |
338 load_klass(rscratch1, receiver); | 338 load_klass(rscratch1, receiver); |
339 cmpptr(rscratch1, iCache); | 339 cmpptr(rscratch1, iCache); |
340 } else { | 340 } else { |
341 cmpptr(iCache, Address(receiver, oopDesc::klass_offset_in_bytes())); | 341 cmpptr(iCache, Address(receiver, oopDesc::klass_offset_in_bytes())); |
342 } | 342 } |
343 // if icache check fails, then jump to runtime routine | 343 // if icache check fails, then jump to runtime routine |
344 // Note: RECEIVER must still contain the receiver! | 344 // Note: RECEIVER must still contain the receiver! |
345 jump_cc(Assembler::notEqual, | 345 jump_cc(Assembler::notEqual, |
346 RuntimeAddress(SharedRuntime::get_ic_miss_stub())); | 346 RuntimeAddress(SharedRuntime::get_ic_miss_stub())); |
347 const int ic_cmp_size = LP64_ONLY(10) NOT_LP64(9); | 347 const int ic_cmp_size = LP64_ONLY(10) NOT_LP64(9); |
348 assert(UseCompressedOops || offset() - start_offset == ic_cmp_size, "check alignment in emit_method_entry"); | 348 assert(UseCompressedKlassPointers || offset() - start_offset == ic_cmp_size, "check alignment in emit_method_entry"); |
349 } | 349 } |
350 | 350 |
351 | 351 |
352 void C1_MacroAssembler::build_frame(int frame_size_in_bytes) { | 352 void C1_MacroAssembler::build_frame(int frame_size_in_bytes) { |
353 // Make sure there is enough stack space for this method's activation. | 353 // Make sure there is enough stack space for this method's activation. |