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Java example source code file (jniFastGetField_sparc.cpp)
The jniFastGetField_sparc.cpp Java example source code/* * Copyright (c) 2004, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "asm/macroAssembler.inline.hpp" #include "memory/resourceArea.hpp" #include "prims/jniFastGetField.hpp" #include "prims/jvm_misc.hpp" #include "runtime/safepoint.hpp" // TSO ensures that loads are blocking and ordered with respect to // to earlier loads, so we don't need LoadLoad membars. #define __ masm-> #define BUFFER_SIZE 30*sizeof(jint) // Common register usage: // O0: env // O1: obj // O2: jfieldID // O4: offset (O2 >> 2) // G4: old safepoint counter address JNI_FastGetField::generate_fast_get_int_field0(BasicType type) { const char *name; switch (type) { case T_BOOLEAN: name = "jni_fast_GetBooleanField"; break; case T_BYTE: name = "jni_fast_GetByteField"; break; case T_CHAR: name = "jni_fast_GetCharField"; break; case T_SHORT: name = "jni_fast_GetShortField"; break; case T_INT: name = "jni_fast_GetIntField"; break; default: ShouldNotReachHere(); } ResourceMark rm; BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize); CodeBuffer cbuf(blob); MacroAssembler* masm = new MacroAssembler(&cbuf); address fast_entry = __ pc(); Label label1, label2; AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr()); __ sethi (cnt_addrlit, O3); Address cnt_addr(O3, cnt_addrlit.low10()); __ ld (cnt_addr, G4); __ andcc (G4, 1, G0); __ br (Assembler::notZero, false, Assembler::pn, label1); __ delayed()->srl (O2, 2, O4); __ ld_ptr (O1, 0, O5); assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); speculative_load_pclist[count] = __ pc(); switch (type) { case T_BOOLEAN: __ ldub (O5, O4, G3); break; case T_BYTE: __ ldsb (O5, O4, G3); break; case T_CHAR: __ lduh (O5, O4, G3); break; case T_SHORT: __ ldsh (O5, O4, G3); break; case T_INT: __ ld (O5, O4, G3); break; default: ShouldNotReachHere(); } __ ld (cnt_addr, O5); __ cmp (O5, G4); __ br (Assembler::notEqual, false, Assembler::pn, label2); __ delayed()->mov (O7, G1); __ retl (); __ delayed()->mov (G3, O0); slowcase_entry_pclist[count++] = __ pc(); __ bind (label1); __ mov (O7, G1); address slow_case_addr; switch (type) { case T_BOOLEAN: slow_case_addr = jni_GetBooleanField_addr(); break; case T_BYTE: slow_case_addr = jni_GetByteField_addr(); break; case T_CHAR: slow_case_addr = jni_GetCharField_addr(); break; case T_SHORT: slow_case_addr = jni_GetShortField_addr(); break; case T_INT: slow_case_addr = jni_GetIntField_addr(); break; default: ShouldNotReachHere(); } __ bind (label2); __ call (slow_case_addr, relocInfo::none); __ delayed()->mov (G1, O7); __ flush (); return fast_entry; } address JNI_FastGetField::generate_fast_get_boolean_field() { return generate_fast_get_int_field0(T_BOOLEAN); } address JNI_FastGetField::generate_fast_get_byte_field() { return generate_fast_get_int_field0(T_BYTE); } address JNI_FastGetField::generate_fast_get_char_field() { return generate_fast_get_int_field0(T_CHAR); } address JNI_FastGetField::generate_fast_get_short_field() { return generate_fast_get_int_field0(T_SHORT); } address JNI_FastGetField::generate_fast_get_int_field() { return generate_fast_get_int_field0(T_INT); } address JNI_FastGetField::generate_fast_get_long_field() { const char *name = "jni_fast_GetLongField"; ResourceMark rm; BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize); CodeBuffer cbuf(blob); MacroAssembler* masm = new MacroAssembler(&cbuf); address fast_entry = __ pc(); Label label1, label2; AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr()); __ sethi (cnt_addrlit, G3); Address cnt_addr(G3, cnt_addrlit.low10()); __ ld (cnt_addr, G4); __ andcc (G4, 1, G0); __ br (Assembler::notZero, false, Assembler::pn, label1); __ delayed()->srl (O2, 2, O4); __ ld_ptr (O1, 0, O5); __ add (O5, O4, O5); #ifndef _LP64 assert(count < LIST_CAPACITY-1, "LIST_CAPACITY too small"); speculative_load_pclist[count++] = __ pc(); __ ld (O5, 0, G2); speculative_load_pclist[count] = __ pc(); __ ld (O5, 4, O3); #else assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); speculative_load_pclist[count] = __ pc(); __ ldx (O5, 0, O3); #endif __ ld (cnt_addr, G1); __ cmp (G1, G4); __ br (Assembler::notEqual, false, Assembler::pn, label2); __ delayed()->mov (O7, G1); #ifndef _LP64 __ mov (G2, O0); __ retl (); __ delayed()->mov (O3, O1); #else __ retl (); __ delayed()->mov (O3, O0); #endif #ifndef _LP64 slowcase_entry_pclist[count-1] = __ pc(); slowcase_entry_pclist[count++] = __ pc() ; #else slowcase_entry_pclist[count++] = __ pc(); #endif __ bind (label1); __ mov (O7, G1); address slow_case_addr = jni_GetLongField_addr(); __ bind (label2); __ call (slow_case_addr, relocInfo::none); __ delayed()->mov (G1, O7); __ flush (); return fast_entry; } address JNI_FastGetField::generate_fast_get_float_field0(BasicType type) { const char *name; switch (type) { case T_FLOAT: name = "jni_fast_GetFloatField"; break; case T_DOUBLE: name = "jni_fast_GetDoubleField"; break; default: ShouldNotReachHere(); } ResourceMark rm; BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize); CodeBuffer cbuf(blob); MacroAssembler* masm = new MacroAssembler(&cbuf); address fast_entry = __ pc(); Label label1, label2; AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr()); __ sethi (cnt_addrlit, O3); Address cnt_addr(O3, cnt_addrlit.low10()); __ ld (cnt_addr, G4); __ andcc (G4, 1, G0); __ br (Assembler::notZero, false, Assembler::pn, label1); __ delayed()->srl (O2, 2, O4); __ ld_ptr (O1, 0, O5); assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); speculative_load_pclist[count] = __ pc(); switch (type) { case T_FLOAT: __ ldf (FloatRegisterImpl::S, O5, O4, F0); break; case T_DOUBLE: __ ldf (FloatRegisterImpl::D, O5, O4, F0); break; default: ShouldNotReachHere(); } __ ld (cnt_addr, O5); __ cmp (O5, G4); __ br (Assembler::notEqual, false, Assembler::pn, label2); __ delayed()->mov (O7, G1); __ retl (); __ delayed()-> nop (); slowcase_entry_pclist[count++] = __ pc(); __ bind (label1); __ mov (O7, G1); address slow_case_addr; switch (type) { case T_FLOAT: slow_case_addr = jni_GetFloatField_addr(); break; case T_DOUBLE: slow_case_addr = jni_GetDoubleField_addr(); break; default: ShouldNotReachHere(); } __ bind (label2); __ call (slow_case_addr, relocInfo::none); __ delayed()->mov (G1, O7); __ flush (); return fast_entry; } address JNI_FastGetField::generate_fast_get_float_field() { return generate_fast_get_float_field0(T_FLOAT); } address JNI_FastGetField::generate_fast_get_double_field() { return generate_fast_get_float_field0(T_DOUBLE); } Other Java examples (source code examples)Here is a short list of links related to this Java jniFastGetField_sparc.cpp source code file: |
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