--- old/src/hotspot/cpu/sparc/jniFastGetField_sparc.cpp 2020-05-01 02:29:05.675691790 -0700 +++ /dev/null 2020-03-09 18:57:19.455001459 -0700 @@ -1,289 +0,0 @@ -/* - * Copyright (c) 2004, 2019, 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 "gc/shared/barrierSet.hpp" -#include "gc/shared/barrierSetAssembler.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); - - if (JvmtiExport::can_post_field_access()) { - // Check to see if a field access watch has been set before we - // take the fast path. - AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); - __ load_contents(get_field_access_count_addr, O5); - __ cmp_and_br_short(O5, 0, Assembler::notEqual, Assembler::pn, label1); - } - - __ mov(O1, O5); - - // Both O5 and G3 are clobbered by try_resolve_jobject_in_native. - BarrierSetAssembler *bs = BarrierSet::barrier_set()->barrier_set_assembler(); - bs->try_resolve_jobject_in_native(masm, /* jni_env */ O0, /* obj */ O5, /* tmp */ G3, label1); - - 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); - - if (JvmtiExport::can_post_field_access()) { - // Check to see if a field access watch has been set before we - // take the fast path. - AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); - __ load_contents(get_field_access_count_addr, O5); - __ cmp_and_br_short(O5, 0, Assembler::notEqual, Assembler::pn, label1); - } - - __ mov(O1, O5); - - // Both O5 and G1 are clobbered by try_resolve_jobject_in_native. - BarrierSetAssembler *bs = BarrierSet::barrier_set()->barrier_set_assembler(); - bs->try_resolve_jobject_in_native(masm, /* jni_env */ O0, /* obj */ O5, /* tmp */ G1, label1); - DEBUG_ONLY(__ set(0xDEADC0DE, G1);) - - __ add (O5, O4, O5); - - assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); - speculative_load_pclist[count] = __ pc(); - __ ldx (O5, 0, O3); - - __ ld (cnt_addr, G1); - __ cmp (G1, G4); - __ br (Assembler::notEqual, false, Assembler::pn, label2); - __ delayed()->mov (O7, G1); - - __ retl (); - __ delayed()->mov (O3, O0); - - slowcase_entry_pclist[count++] = __ pc(); - - __ 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); - - if (JvmtiExport::can_post_field_access()) { - // Check to see if a field access watch has been set before we - // take the fast path. - AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); - __ load_contents(get_field_access_count_addr, O5); - __ cmp_and_br_short(O5, 0, Assembler::notEqual, Assembler::pn, label1); - } - - __ mov(O1, O5); - - // Both O5 and G3 are clobbered by try_resolve_jobject_in_native. - BarrierSetAssembler *bs = BarrierSet::barrier_set()->barrier_set_assembler(); - bs->try_resolve_jobject_in_native(masm, /* jni_env */ O0, /* obj */ O5, /* tmp */ G3, label1); - DEBUG_ONLY(__ set(0xDEADC0DE, G3);) - - 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); -}