jdk8-mips64-public/hotspot: src/cpu/ppc/vm/interpreterRT

src/cpu/ppc/vm/interpreterRT_ppc.cpp@41b780b43b74 (annotated)

src/cpu/ppc/vm/interpreterRT_ppc.cpp

Wed, 27 Nov 2013 16:16:21 -0800

author: goetz
date: Wed, 27 Nov 2013 16:16:21 -0800
changeset 6490: 41b780b43b74
parent 6458: ec28f9c041ff
child 6511: 31e80afe3fed
permissions: -rw-r--r--

8029015: PPC64 (part 216): opto: trap based null and range checks
Summary: On PPC64 use tdi instruction that does a compare and raises SIGTRAP for NULL and range checks.
Reviewed-by: kvn

 /*
  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2012, 2013 SAP AG. 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 "interpreter/interpreter.hpp"
 #include "interpreter/interpreterRuntime.hpp"
 #include "memory/allocation.inline.hpp"
 #include "memory/universe.inline.hpp"
 #include "oops/method.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/icache.hpp"
 #include "runtime/interfaceSupport.hpp"
 #include "runtime/signature.hpp"
 #define __ _masm->
 // Access macros for Java and C arguments.
 // The first Java argument is at index -1.
 #define locals_j_arg_at(index)    (Interpreter::local_offset_in_bytes(index)), R18_locals
 // The first C argument is at index 0.
 #define sp_c_arg_at(index)        ((index)*wordSize + _abi(carg_1)), R1_SP
 // Implementation of SignatureHandlerGenerator
 void InterpreterRuntime::SignatureHandlerGenerator::pass_int() {
   Argument jni_arg(jni_offset());
   Register r = jni_arg.is_register() ? jni_arg.as_register() : R0;
   __ lwa(r, locals_j_arg_at(offset())); // sign extension of integer
   if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
     __ std(r, sp_c_arg_at(jni_arg.number()));
   }
 }
 void InterpreterRuntime::SignatureHandlerGenerator::pass_long() {
   Argument jni_arg(jni_offset());
   Register r = jni_arg.is_register() ? jni_arg.as_register() : R0;
   __ ld(r, locals_j_arg_at(offset()+1)); // long resides in upper slot
   if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
     __ std(r, sp_c_arg_at(jni_arg.number()));
   }
 }
 void InterpreterRuntime::SignatureHandlerGenerator::pass_float() {
   FloatRegister fp_reg = (_num_used_fp_arg_regs < 13/*max_fp_register_arguments*/)
                          ? as_FloatRegister((_num_used_fp_arg_regs++) + F1_ARG1->encoding())
                          : F0;
   __ lfs(fp_reg, locals_j_arg_at(offset()));
   if (DEBUG_ONLY(true ||) jni_offset() > 8) {
     __ stfs(fp_reg, sp_c_arg_at(jni_offset()));
   }
 }
 void InterpreterRuntime::SignatureHandlerGenerator::pass_double() {
   FloatRegister fp_reg = (_num_used_fp_arg_regs < 13/*max_fp_register_arguments*/)
                          ? as_FloatRegister((_num_used_fp_arg_regs++) + F1_ARG1->encoding())
                          : F0;
   __ lfd(fp_reg, locals_j_arg_at(offset()+1));
   if (DEBUG_ONLY(true ||) jni_offset() > 8) {
     __ stfd(fp_reg, sp_c_arg_at(jni_offset()));
   }
 }
 void InterpreterRuntime::SignatureHandlerGenerator::pass_object() {
   Argument jni_arg(jni_offset());
   Register r = jni_arg.is_register() ? jni_arg.as_register() : R11_scratch1;
   // The handle for a receiver will never be null.
   bool do_NULL_check = offset() != 0 || is_static();
   Label do_null;
   if (do_NULL_check) {
     __ ld(R0, locals_j_arg_at(offset()));
     __ cmpdi(CCR0, R0, 0);
     __ li(r, 0);
     __ beq(CCR0, do_null);
   }
   __ addir(r, locals_j_arg_at(offset()));
   __ bind(do_null);
   if (DEBUG_ONLY(true ||) !jni_arg.is_register()) {
     __ std(r, sp_c_arg_at(jni_arg.number()));
   }
 }
 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
   // Emit fd for current codebuffer. Needs patching!
   __ emit_fd();
   // Generate code to handle arguments.
   iterate(fingerprint);
   // Return the result handler.
   __ load_const(R3_RET, AbstractInterpreter::result_handler(method()->result_type()));
   __ blr();
   __ flush();
 }
 #undef __
 // Implementation of SignatureHandlerLibrary
 void SignatureHandlerLibrary::pd_set_handler(address handler) {
   // patch fd here.
   FunctionDescriptor* fd = (FunctionDescriptor*) handler;
   fd->set_entry(handler + (int)sizeof(FunctionDescriptor));
   assert(fd->toc() == (address)0xcafe, "need to adjust TOC here");
 }
 // Access function to get the signature.
 IRT_ENTRY(address, InterpreterRuntime::get_signature(JavaThread* thread, Method* method))
   methodHandle m(thread, method);
   assert(m->is_native(), "sanity check");
   Symbol *s = m->signature();
   return (address) s->base();
 IRT_END
 IRT_ENTRY(address, InterpreterRuntime::get_result_handler(JavaThread* thread, Method* method))
   methodHandle m(thread, method);
   assert(m->is_native(), "sanity check");
   return AbstractInterpreter::result_handler(m->result_type());
 IRT_END

Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/ppc/vm/interpreterRT_ppc.cpp@41b780b43b74 (annotated)

src/cpu/ppc/vm/interpreterRT_ppc.cpp