jdk8-mips64-public/hotspot: src/share/vm/opto/c2compiler.cpp@8c95980d0b66 (annotated)

src/share/vm/opto/c2compiler.cpp@8c95980d0b66 (annotated)

src/share/vm/opto/c2compiler.cpp

Sat, 07 Nov 2020 10:30:02 +0800

author: aoqi
date: Sat, 07 Nov 2020 10:30:02 +0800
changeset 10026: 8c95980d0b66
parent 10015: eb7ce841ccec
permissions: -rw-r--r--

Added tag mips-jdk8u275-b01 for changeset d3b4d62f391f

 /*
  * Copyright (c) 1999, 2015, 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.
  *
  */
 /*
  * This file has been modified by Loongson Technology in 2015. These
  * modifications are Copyright (c) 2015 Loongson Technology, and are made
  * available on the same license terms set forth above.
  */
 #include "precompiled.hpp"
 #include "opto/c2compiler.hpp"
 #include "opto/runtime.hpp"
 #if defined AD_MD_HPP
 # include AD_MD_HPP
 #elif defined TARGET_ARCH_MODEL_x86_32
 # include "adfiles/ad_x86_32.hpp"
 #elif defined TARGET_ARCH_MODEL_x86_64
 # include "adfiles/ad_x86_64.hpp"
 #elif defined TARGET_ARCH_MODEL_sparc
 # include "adfiles/ad_sparc.hpp"
 #elif defined TARGET_ARCH_MODEL_zero
 # include "adfiles/ad_zero.hpp"
 #elif defined TARGET_ARCH_MODEL_ppc_64
 # include "adfiles/ad_ppc_64.hpp"
 #elif defined TARGET_ARCH_MODEL_mips_64
 # include "adfiles/ad_mips_64.hpp"
 #endif
 // register information defined by ADLC
 extern const char register_save_policy[];
 extern const int  register_save_type[];
 const char* C2Compiler::retry_no_subsuming_loads() {
   return "retry without subsuming loads";
 }
 const char* C2Compiler::retry_no_escape_analysis() {
   return "retry without escape analysis";
 }
 const char* C2Compiler::retry_class_loading_during_parsing() {
   return "retry class loading during parsing";
 }
 bool C2Compiler::init_c2_runtime() {
   // Check assumptions used while running ADLC
   Compile::adlc_verification();
   assert(REG_COUNT <= ConcreteRegisterImpl::number_of_registers, "incompatible register counts");
   for (int i = 0; i < ConcreteRegisterImpl::number_of_registers ; i++ ) {
       OptoReg::vm2opto[i] = OptoReg::Bad;
   }
   for( OptoReg::Name i=OptoReg::Name(0); i<OptoReg::Name(REG_COUNT); i = OptoReg::add(i,1) ) {
     VMReg r = OptoReg::as_VMReg(i);
     if (r->is_valid()) {
       OptoReg::vm2opto[r->value()] = i;
     }
   }
   // Check that runtime and architecture description agree on callee-saved-floats
   bool callee_saved_floats = false;
   for( OptoReg::Name i=OptoReg::Name(0); i<OptoReg::Name(_last_Mach_Reg); i = OptoReg::add(i,1) ) {
     // Is there a callee-saved float or double?
     if( register_save_policy[i] == 'E' /* callee-saved */ &&
        (register_save_type[i] == Op_RegF || register_save_type[i] == Op_RegD) ) {
       callee_saved_floats = true;
     }
   }
   DEBUG_ONLY( Node::init_NodeProperty(); )
   Compile::pd_compiler2_init();
   CompilerThread* thread = CompilerThread::current();
   HandleMark handle_mark(thread);
   return OptoRuntime::generate(thread->env());
 }
 void C2Compiler::initialize() {
   // The first compiler thread that gets here will initialize the
   // small amount of global state (and runtime stubs) that C2 needs.
   // There is a race possible once at startup and then we're fine
   // Note that this is being called from a compiler thread not the
   // main startup thread.
   if (should_perform_init()) {
     bool successful = C2Compiler::init_c2_runtime();
     int new_state = (successful) ? initialized : failed;
     set_state(new_state);
   }
 }
 void C2Compiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
   assert(is_initialized(), "Compiler thread must be initialized");
   bool subsume_loads = SubsumeLoads;
   bool do_escape_analysis = DoEscapeAnalysis && !env->should_retain_local_variables();
   bool eliminate_boxing = EliminateAutoBox;
   while (!env->failing()) {
     // Attempt to compile while subsuming loads into machine instructions.
     Compile C(env, this, target, entry_bci, subsume_loads, do_escape_analysis, eliminate_boxing);
     // Check result and retry if appropriate.
     if (C.failure_reason() != NULL) {
       if (C.failure_reason_is(retry_class_loading_during_parsing())) {
         env->record_failure(C.failure_reason());
         continue;  // retry
       }
       if (C.failure_reason_is(retry_no_subsuming_loads())) {
         assert(subsume_loads, "must make progress");
         subsume_loads = false;
         continue;  // retry
       }
       if (C.failure_reason_is(retry_no_escape_analysis())) {
         assert(do_escape_analysis, "must make progress");
         do_escape_analysis = false;
         continue;  // retry
       }
       if (C.has_boxed_value()) {
         // Recompile without boxing elimination regardless failure reason.
         assert(eliminate_boxing, "must make progress");
         eliminate_boxing = false;
         continue;  // retry
       }
       // Pass any other failure reason up to the ciEnv.
       // Note that serious, irreversible failures are already logged
       // on the ciEnv via env->record_method_not_compilable().
       env->record_failure(C.failure_reason());
     }
     if (StressRecompilation) {
       if (subsume_loads) {
         subsume_loads = false;
         continue;  // retry
       }
       if (do_escape_analysis) {
         do_escape_analysis = false;
         continue;  // retry
       }
     }
     // No retry; just break the loop.
     break;
   }
 }
 void C2Compiler::print_timers() {
   // do nothing
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/opto/c2compiler.cpp@8c95980d0b66 (annotated)

src/share/vm/opto/c2compiler.cpp