src/cpu/x86/vm/interpreter_x86_64.cpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 1907
c18cbe5936b8
child 2639
8033953d67ff
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     1 /*
     2  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     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
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #include "precompiled.hpp"
    26 #include "asm/assembler.hpp"
    27 #include "interpreter/bytecodeHistogram.hpp"
    28 #include "interpreter/interpreter.hpp"
    29 #include "interpreter/interpreterGenerator.hpp"
    30 #include "interpreter/interpreterRuntime.hpp"
    31 #include "interpreter/templateTable.hpp"
    32 #include "oops/arrayOop.hpp"
    33 #include "oops/methodDataOop.hpp"
    34 #include "oops/methodOop.hpp"
    35 #include "oops/oop.inline.hpp"
    36 #include "prims/jvmtiExport.hpp"
    37 #include "prims/jvmtiThreadState.hpp"
    38 #include "prims/methodHandles.hpp"
    39 #include "runtime/arguments.hpp"
    40 #include "runtime/deoptimization.hpp"
    41 #include "runtime/frame.inline.hpp"
    42 #include "runtime/sharedRuntime.hpp"
    43 #include "runtime/stubRoutines.hpp"
    44 #include "runtime/synchronizer.hpp"
    45 #include "runtime/timer.hpp"
    46 #include "runtime/vframeArray.hpp"
    47 #include "utilities/debug.hpp"
    48 #ifdef COMPILER1
    49 #include "c1/c1_Runtime1.hpp"
    50 #endif
    52 #define __ _masm->
    55 #ifdef _WIN64
    56 address AbstractInterpreterGenerator::generate_slow_signature_handler() {
    57   address entry = __ pc();
    59   // rbx: method
    60   // r14: pointer to locals
    61   // c_rarg3: first stack arg - wordSize
    62   __ mov(c_rarg3, rsp);
    63   // adjust rsp
    64   __ subptr(rsp, 4 * wordSize);
    65   __ call_VM(noreg,
    66              CAST_FROM_FN_PTR(address,
    67                               InterpreterRuntime::slow_signature_handler),
    68              rbx, r14, c_rarg3);
    70   // rax: result handler
    72   // Stack layout:
    73   // rsp: 3 integer or float args (if static first is unused)
    74   //      1 float/double identifiers
    75   //        return address
    76   //        stack args
    77   //        garbage
    78   //        expression stack bottom
    79   //        bcp (NULL)
    80   //        ...
    82   // Do FP first so we can use c_rarg3 as temp
    83   __ movl(c_rarg3, Address(rsp, 3 * wordSize)); // float/double identifiers
    85   for ( int i= 0; i < Argument::n_int_register_parameters_c-1; i++ ) {
    86     XMMRegister floatreg = as_XMMRegister(i+1);
    87     Label isfloatordouble, isdouble, next;
    89     __ testl(c_rarg3, 1 << (i*2));      // Float or Double?
    90     __ jcc(Assembler::notZero, isfloatordouble);
    92     // Do Int register here
    93     switch ( i ) {
    94       case 0:
    95         __ movl(rscratch1, Address(rbx, methodOopDesc::access_flags_offset()));
    96         __ testl(rscratch1, JVM_ACC_STATIC);
    97         __ cmovptr(Assembler::zero, c_rarg1, Address(rsp, 0));
    98         break;
    99       case 1:
   100         __ movptr(c_rarg2, Address(rsp, wordSize));
   101         break;
   102       case 2:
   103         __ movptr(c_rarg3, Address(rsp, 2 * wordSize));
   104         break;
   105       default:
   106         break;
   107     }
   109     __ jmp (next);
   111     __ bind(isfloatordouble);
   112     __ testl(c_rarg3, 1 << ((i*2)+1));     // Double?
   113     __ jcc(Assembler::notZero, isdouble);
   115 // Do Float Here
   116     __ movflt(floatreg, Address(rsp, i * wordSize));
   117     __ jmp(next);
   119 // Do Double here
   120     __ bind(isdouble);
   121     __ movdbl(floatreg, Address(rsp, i * wordSize));
   123     __ bind(next);
   124   }
   127   // restore rsp
   128   __ addptr(rsp, 4 * wordSize);
   130   __ ret(0);
   132   return entry;
   133 }
   134 #else
   135 address AbstractInterpreterGenerator::generate_slow_signature_handler() {
   136   address entry = __ pc();
   138   // rbx: method
   139   // r14: pointer to locals
   140   // c_rarg3: first stack arg - wordSize
   141   __ mov(c_rarg3, rsp);
   142   // adjust rsp
   143   __ subptr(rsp, 14 * wordSize);
   144   __ call_VM(noreg,
   145              CAST_FROM_FN_PTR(address,
   146                               InterpreterRuntime::slow_signature_handler),
   147              rbx, r14, c_rarg3);
   149   // rax: result handler
   151   // Stack layout:
   152   // rsp: 5 integer args (if static first is unused)
   153   //      1 float/double identifiers
   154   //      8 double args
   155   //        return address
   156   //        stack args
   157   //        garbage
   158   //        expression stack bottom
   159   //        bcp (NULL)
   160   //        ...
   162   // Do FP first so we can use c_rarg3 as temp
   163   __ movl(c_rarg3, Address(rsp, 5 * wordSize)); // float/double identifiers
   165   for (int i = 0; i < Argument::n_float_register_parameters_c; i++) {
   166     const XMMRegister r = as_XMMRegister(i);
   168     Label d, done;
   170     __ testl(c_rarg3, 1 << i);
   171     __ jcc(Assembler::notZero, d);
   172     __ movflt(r, Address(rsp, (6 + i) * wordSize));
   173     __ jmp(done);
   174     __ bind(d);
   175     __ movdbl(r, Address(rsp, (6 + i) * wordSize));
   176     __ bind(done);
   177   }
   179   // Now handle integrals.  Only do c_rarg1 if not static.
   180   __ movl(c_rarg3, Address(rbx, methodOopDesc::access_flags_offset()));
   181   __ testl(c_rarg3, JVM_ACC_STATIC);
   182   __ cmovptr(Assembler::zero, c_rarg1, Address(rsp, 0));
   184   __ movptr(c_rarg2, Address(rsp, wordSize));
   185   __ movptr(c_rarg3, Address(rsp, 2 * wordSize));
   186   __ movptr(c_rarg4, Address(rsp, 3 * wordSize));
   187   __ movptr(c_rarg5, Address(rsp, 4 * wordSize));
   189   // restore rsp
   190   __ addptr(rsp, 14 * wordSize);
   192   __ ret(0);
   194   return entry;
   195 }
   196 #endif
   199 //
   200 // Various method entries
   201 //
   203 address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) {
   205   // rbx,: methodOop
   206   // rcx: scratrch
   207   // r13: sender sp
   209   if (!InlineIntrinsics) return NULL; // Generate a vanilla entry
   211   address entry_point = __ pc();
   213   // These don't need a safepoint check because they aren't virtually
   214   // callable. We won't enter these intrinsics from compiled code.
   215   // If in the future we added an intrinsic which was virtually callable
   216   // we'd have to worry about how to safepoint so that this code is used.
   218   // mathematical functions inlined by compiler
   219   // (interpreter must provide identical implementation
   220   // in order to avoid monotonicity bugs when switching
   221   // from interpreter to compiler in the middle of some
   222   // computation)
   223   //
   224   // stack: [ ret adr ] <-- rsp
   225   //        [ lo(arg) ]
   226   //        [ hi(arg) ]
   227   //
   229   // Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are
   230   //       native methods. Interpreter::method_kind(...) does a check for
   231   //       native methods first before checking for intrinsic methods and
   232   //       thus will never select this entry point. Make sure it is not
   233   //       called accidentally since the SharedRuntime entry points will
   234   //       not work for JDK 1.2.
   235   //
   236   // We no longer need to check for JDK 1.2 since it's EOL'ed.
   237   // The following check existed in pre 1.6 implementation,
   238   //    if (Universe::is_jdk12x_version()) {
   239   //      __ should_not_reach_here();
   240   //    }
   241   // Universe::is_jdk12x_version() always returns false since
   242   // the JDK version is not yet determined when this method is called.
   243   // This method is called during interpreter_init() whereas
   244   // JDK version is only determined when universe2_init() is called.
   246   // Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are
   247   //       java methods.  Interpreter::method_kind(...) will select
   248   //       this entry point for the corresponding methods in JDK 1.3.
   249   // get argument
   251   if (kind == Interpreter::java_lang_math_sqrt) {
   252     __ sqrtsd(xmm0, Address(rsp, wordSize));
   253   } else {
   254     __ fld_d(Address(rsp, wordSize));
   255     switch (kind) {
   256       case Interpreter::java_lang_math_sin :
   257           __ trigfunc('s');
   258           break;
   259       case Interpreter::java_lang_math_cos :
   260           __ trigfunc('c');
   261           break;
   262       case Interpreter::java_lang_math_tan :
   263           __ trigfunc('t');
   264           break;
   265       case Interpreter::java_lang_math_abs:
   266           __ fabs();
   267           break;
   268       case Interpreter::java_lang_math_log:
   269           __ flog();
   270           break;
   271       case Interpreter::java_lang_math_log10:
   272           __ flog10();
   273           break;
   274       default                              :
   275           ShouldNotReachHere();
   276     }
   278     // return double result in xmm0 for interpreter and compilers.
   279     __ subptr(rsp, 2*wordSize);
   280     // Round to 64bit precision
   281     __ fstp_d(Address(rsp, 0));
   282     __ movdbl(xmm0, Address(rsp, 0));
   283     __ addptr(rsp, 2*wordSize);
   284   }
   287   __ pop(rax);
   288   __ mov(rsp, r13);
   289   __ jmp(rax);
   291   return entry_point;
   292 }
   295 // Abstract method entry
   296 // Attempt to execute abstract method. Throw exception
   297 address InterpreterGenerator::generate_abstract_entry(void) {
   298   // rbx: methodOop
   299   // r13: sender SP
   301   address entry_point = __ pc();
   303   // abstract method entry
   305   //  pop return address, reset last_sp to NULL
   306   __ empty_expression_stack();
   307   __ restore_bcp();      // rsi must be correct for exception handler   (was destroyed)
   308   __ restore_locals();   // make sure locals pointer is correct as well (was destroyed)
   310   // throw exception
   311   __ call_VM(noreg, CAST_FROM_FN_PTR(address,
   312                              InterpreterRuntime::throw_AbstractMethodError));
   313   // the call_VM checks for exception, so we should never return here.
   314   __ should_not_reach_here();
   316   return entry_point;
   317 }
   320 // Method handle invoker
   321 // Dispatch a method of the form java.dyn.MethodHandles::invoke(...)
   322 address InterpreterGenerator::generate_method_handle_entry(void) {
   323   if (!EnableMethodHandles) {
   324     return generate_abstract_entry();
   325   }
   327   address entry_point = MethodHandles::generate_method_handle_interpreter_entry(_masm);
   329   return entry_point;
   330 }
   333 // Empty method, generate a very fast return.
   335 address InterpreterGenerator::generate_empty_entry(void) {
   336   // rbx: methodOop
   337   // r13: sender sp must set sp to this value on return
   339   if (!UseFastEmptyMethods) {
   340     return NULL;
   341   }
   343   address entry_point = __ pc();
   345   // If we need a safepoint check, generate full interpreter entry.
   346   Label slow_path;
   347   __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
   348            SafepointSynchronize::_not_synchronized);
   349   __ jcc(Assembler::notEqual, slow_path);
   351   // do nothing for empty methods (do not even increment invocation counter)
   352   // Code: _return
   353   // _return
   354   // return w/o popping parameters
   355   __ pop(rax);
   356   __ mov(rsp, r13);
   357   __ jmp(rax);
   359   __ bind(slow_path);
   360   (void) generate_normal_entry(false);
   361   return entry_point;
   363 }
   365 // This method tells the deoptimizer how big an interpreted frame must be:
   366 int AbstractInterpreter::size_activation(methodOop method,
   367                                          int tempcount,
   368                                          int popframe_extra_args,
   369                                          int moncount,
   370                                          int callee_param_count,
   371                                          int callee_locals,
   372                                          bool is_top_frame) {
   373   return layout_activation(method,
   374                            tempcount, popframe_extra_args, moncount,
   375                            callee_param_count, callee_locals,
   376                            (frame*) NULL, (frame*) NULL, is_top_frame);
   377 }
   379 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) {
   381   // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in
   382   // the days we had adapter frames. When we deoptimize a situation where a
   383   // compiled caller calls a compiled caller will have registers it expects
   384   // to survive the call to the callee. If we deoptimize the callee the only
   385   // way we can restore these registers is to have the oldest interpreter
   386   // frame that we create restore these values. That is what this routine
   387   // will accomplish.
   389   // At the moment we have modified c2 to not have any callee save registers
   390   // so this problem does not exist and this routine is just a place holder.
   392   assert(f->is_interpreted_frame(), "must be interpreted");
   393 }

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