jdk8-mips64-public/hotspot: src/share/vm/shark/sharkIntrinsics.cpp@01522ca68fc7 (annotated)

src/share/vm/shark/sharkIntrinsics.cpp@01522ca68fc7 (annotated)

src/share/vm/shark/sharkIntrinsics.cpp

Tue, 18 Jun 2013 12:31:07 -0700

author: johnc
date: Tue, 18 Jun 2013 12:31:07 -0700
changeset 5277: 01522ca68fc7
parent 4314: 2cd5e15048e6
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8015237: Parallelize string table scanning during strong root processing
Summary: Parallelize the scanning of the intern string table by having each GC worker claim a given number of buckets. Changes were also reviewed by Per Liden <per.liden@oracle.com>.
Reviewed-by: tschatzl, stefank, twisti

 /*
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2009 Red Hat, Inc.
  * 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 "ci/ciMethod.hpp"
 #include "shark/llvmHeaders.hpp"
 #include "shark/sharkIntrinsics.hpp"
 #include "shark/sharkState.hpp"
 #include "shark/sharkValue.hpp"
 #include "shark/shark_globals.hpp"
 using namespace llvm;
 bool SharkIntrinsics::is_intrinsic(ciMethod *target) {
   switch (target->intrinsic_id()) {
   case vmIntrinsics::_none:
     return false;
     // java.lang.Math
   case vmIntrinsics::_min:
   case vmIntrinsics::_max:
   case vmIntrinsics::_dabs:
   case vmIntrinsics::_dsin:
   case vmIntrinsics::_dcos:
   case vmIntrinsics::_dtan:
   case vmIntrinsics::_datan2:
   case vmIntrinsics::_dsqrt:
   case vmIntrinsics::_dlog:
   case vmIntrinsics::_dlog10:
   case vmIntrinsics::_dpow:
   case vmIntrinsics::_dexp:
     return true;
     // java.lang.Object
   case vmIntrinsics::_getClass:
     return true;
     // java.lang.System
   case vmIntrinsics::_currentTimeMillis:
     return true;
     // java.lang.Thread
   case vmIntrinsics::_currentThread:
     return true;
     // sun.misc.Unsafe
   case vmIntrinsics::_compareAndSwapInt:
     return true;
   default:
     if (SharkPerformanceWarnings) {
       warning(
         "unhandled intrinsic vmIntrinsic::%s",
         vmIntrinsics::name_at(target->intrinsic_id()));
     }
   }
   return false;
 }
 void SharkIntrinsics::inline_intrinsic(ciMethod *target, SharkState *state) {
   SharkIntrinsics intrinsic(state, target);
   intrinsic.do_intrinsic();
 }
 void SharkIntrinsics::do_intrinsic() {
   switch (target()->intrinsic_id()) {
     // java.lang.Math
   case vmIntrinsics::_min:
     do_Math_minmax(llvm::ICmpInst::ICMP_SLE);
     break;
   case vmIntrinsics::_max:
     do_Math_minmax(llvm::ICmpInst::ICMP_SGE);
     break;
   case vmIntrinsics::_dabs:
     do_Math_1to1(builder()->fabs());
     break;
   case vmIntrinsics::_dsin:
     do_Math_1to1(builder()->sin());
     break;
   case vmIntrinsics::_dcos:
     do_Math_1to1(builder()->cos());
     break;
   case vmIntrinsics::_dtan:
     do_Math_1to1(builder()->tan());
     break;
   case vmIntrinsics::_datan2:
     do_Math_2to1(builder()->atan2());
     break;
   case vmIntrinsics::_dsqrt:
     do_Math_1to1(builder()->sqrt());
     break;
   case vmIntrinsics::_dlog:
     do_Math_1to1(builder()->log());
     break;
   case vmIntrinsics::_dlog10:
     do_Math_1to1(builder()->log10());
     break;
   case vmIntrinsics::_dpow:
     do_Math_2to1(builder()->pow());
     break;
   case vmIntrinsics::_dexp:
     do_Math_1to1(builder()->exp());
     break;
     // java.lang.Object
   case vmIntrinsics::_getClass:
     do_Object_getClass();
     break;
     // java.lang.System
   case vmIntrinsics::_currentTimeMillis:
     do_System_currentTimeMillis();
     break;
     // java.lang.Thread
   case vmIntrinsics::_currentThread:
     do_Thread_currentThread();
     break;
     // sun.misc.Unsafe
   case vmIntrinsics::_compareAndSwapInt:
     do_Unsafe_compareAndSwapInt();
     break;
   default:
     ShouldNotReachHere();
   }
 }
 void SharkIntrinsics::do_Math_minmax(ICmpInst::Predicate p) {
   // Pop the arguments
   SharkValue *sb = state()->pop();
   SharkValue *sa = state()->pop();
   Value *a = sa->jint_value();
   Value *b = sb->jint_value();
   // Perform the test
   BasicBlock *ip       = builder()->GetBlockInsertionPoint();
   BasicBlock *return_a = builder()->CreateBlock(ip, "return_a");
   BasicBlock *return_b = builder()->CreateBlock(ip, "return_b");
   BasicBlock *done     = builder()->CreateBlock(ip, "done");
   builder()->CreateCondBr(builder()->CreateICmp(p, a, b), return_a, return_b);
   builder()->SetInsertPoint(return_a);
   builder()->CreateBr(done);
   builder()->SetInsertPoint(return_b);
   builder()->CreateBr(done);
   builder()->SetInsertPoint(done);
   PHINode *phi = builder()->CreatePHI(a->getType(), 0, "result");
   phi->addIncoming(a, return_a);
   phi->addIncoming(b, return_b);
   // Push the result
   state()->push(
     SharkValue::create_jint(
       phi,
       sa->zero_checked() && sb->zero_checked()));
 }
 void SharkIntrinsics::do_Math_1to1(Value *function) {
   SharkValue *empty = state()->pop();
   assert(empty == NULL, "should be");
   state()->push(
     SharkValue::create_jdouble(
       builder()->CreateCall(
         function, state()->pop()->jdouble_value())));
   state()->push(NULL);
 }
 void SharkIntrinsics::do_Math_2to1(Value *function) {
   SharkValue *empty = state()->pop();
   assert(empty == NULL, "should be");
   Value *y = state()->pop()->jdouble_value();
   empty = state()->pop();
   assert(empty == NULL, "should be");
   Value *x = state()->pop()->jdouble_value();
   state()->push(
     SharkValue::create_jdouble(
       builder()->CreateCall2(function, x, y)));
   state()->push(NULL);
 }
 void SharkIntrinsics::do_Object_getClass() {
   Value *klass = builder()->CreateValueOfStructEntry(
     state()->pop()->jobject_value(),
     in_ByteSize(oopDesc::klass_offset_in_bytes()),
     SharkType::klass_type(),
     "klass");
   state()->push(
     SharkValue::create_jobject(
       builder()->CreateValueOfStructEntry(
         klass,
         Klass::java_mirror_offset(),
         SharkType::oop_type(),
         "java_mirror"),
       true));
 }
 void SharkIntrinsics::do_System_currentTimeMillis() {
   state()->push(
     SharkValue::create_jlong(
       builder()->CreateCall(builder()->current_time_millis()),
       false));
   state()->push(NULL);
 }
 void SharkIntrinsics::do_Thread_currentThread() {
   state()->push(
     SharkValue::create_jobject(
       builder()->CreateValueOfStructEntry(
         thread(), JavaThread::threadObj_offset(),
         SharkType::oop_type(),
         "threadObj"),
       true));
 }
 void SharkIntrinsics::do_Unsafe_compareAndSwapInt() {
   // Pop the arguments
   Value *x      = state()->pop()->jint_value();
   Value *e      = state()->pop()->jint_value();
   SharkValue *empty = state()->pop();
   assert(empty == NULL, "should be");
   Value *offset = state()->pop()->jlong_value();
   Value *object = state()->pop()->jobject_value();
   Value *unsafe = state()->pop()->jobject_value();
   // Convert the offset
   offset = builder()->CreateCall(
     builder()->unsafe_field_offset_to_byte_offset(),
     offset);
   // Locate the field
   Value *addr = builder()->CreateIntToPtr(
     builder()->CreateAdd(
       builder()->CreatePtrToInt(object, SharkType::intptr_type()),
       builder()->CreateIntCast(offset, SharkType::intptr_type(), true)),
     PointerType::getUnqual(SharkType::jint_type()),
     "addr");
   // Perform the operation
   Value *result = builder()->CreateAtomicCmpXchg(addr, e, x, llvm::SequentiallyConsistent);
   // Push the result
   state()->push(
     SharkValue::create_jint(
       builder()->CreateIntCast(
         builder()->CreateICmpEQ(result, e), SharkType::jint_type(), true),
       false));
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/shark/sharkIntrinsics.cpp@01522ca68fc7 (annotated)

src/share/vm/shark/sharkIntrinsics.cpp