jdk8-mips64-public/hotspot: src/share/vm/shark/sharkBlock.cpp@606eada1bf86 (annotated)

src/share/vm/shark/sharkBlock.cpp@606eada1bf86 (annotated)

src/share/vm/shark/sharkBlock.cpp

Fri, 11 Jan 2013 16:47:23 -0800

author: twisti
date: Fri, 11 Jan 2013 16:47:23 -0800
changeset 4444: 606eada1bf86
parent 4441: f9bda35f4226
child 6198: 55fb97c4c58d
permissions: -rw-r--r--

8005820: Shark: enable JSR292 support
Reviewed-by: twisti
Contributed-by: Roman Kennke <rkennke@redhat.com>

 /*
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2008, 2009, 2010 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 "interpreter/bytecodes.hpp"
 #include "shark/llvmHeaders.hpp"
 #include "shark/llvmValue.hpp"
 #include "shark/sharkBlock.hpp"
 #include "shark/sharkBuilder.hpp"
 #include "shark/sharkConstant.hpp"
 #include "shark/sharkState.hpp"
 #include "shark/sharkValue.hpp"
 #include "shark/shark_globals.hpp"
 #include "utilities/debug.hpp"
 using namespace llvm;
 void SharkBlock::parse_bytecode(int start, int limit) {
   SharkValue *a, *b, *c, *d;
   int i;
   // Ensure the current state is initialized before we emit any code,
   // so that any setup code for the state is at the start of the block
   current_state();
   // Parse the bytecodes
   iter()->reset_to_bci(start);
   while (iter()->next_bci() < limit) {
     NOT_PRODUCT(a = b = c = d = NULL);
     iter()->next();
     if (SharkTraceBytecodes)
       tty->print_cr("%4d: %s", bci(), Bytecodes::name(bc()));
     if (has_trap() && trap_bci() == bci()) {
       do_trap(trap_request());
       return;
     }
     if (UseLoopSafepoints) {
       // XXX if a lcmp is followed by an if_?? then C2 maybe-inserts
       // the safepoint before the lcmp rather than before the if.
       // Maybe we should do this too.  See parse2.cpp for details.
       switch (bc()) {
       case Bytecodes::_goto:
       case Bytecodes::_ifnull:
       case Bytecodes::_ifnonnull:
       case Bytecodes::_if_acmpeq:
       case Bytecodes::_if_acmpne:
       case Bytecodes::_ifeq:
       case Bytecodes::_ifne:
       case Bytecodes::_iflt:
       case Bytecodes::_ifle:
       case Bytecodes::_ifgt:
       case Bytecodes::_ifge:
       case Bytecodes::_if_icmpeq:
       case Bytecodes::_if_icmpne:
       case Bytecodes::_if_icmplt:
       case Bytecodes::_if_icmple:
       case Bytecodes::_if_icmpgt:
       case Bytecodes::_if_icmpge:
         if (iter()->get_dest() <= bci())
           maybe_add_backedge_safepoint();
         break;
       case Bytecodes::_goto_w:
         if (iter()->get_far_dest() <= bci())
           maybe_add_backedge_safepoint();
         break;
       case Bytecodes::_tableswitch:
       case Bytecodes::_lookupswitch:
         if (switch_default_dest() <= bci()) {
           maybe_add_backedge_safepoint();
           break;
         }
         int len = switch_table_length();
         for (int i = 0; i < len; i++) {
           if (switch_dest(i) <= bci()) {
             maybe_add_backedge_safepoint();
             break;
           }
         }
         break;
       }
     }
     switch (bc()) {
     case Bytecodes::_nop:
       break;
     case Bytecodes::_aconst_null:
       push(SharkValue::null());
       break;
     case Bytecodes::_iconst_m1:
       push(SharkValue::jint_constant(-1));
       break;
     case Bytecodes::_iconst_0:
       push(SharkValue::jint_constant(0));
       break;
     case Bytecodes::_iconst_1:
       push(SharkValue::jint_constant(1));
       break;
     case Bytecodes::_iconst_2:
       push(SharkValue::jint_constant(2));
       break;
     case Bytecodes::_iconst_3:
       push(SharkValue::jint_constant(3));
       break;
     case Bytecodes::_iconst_4:
       push(SharkValue::jint_constant(4));
       break;
     case Bytecodes::_iconst_5:
       push(SharkValue::jint_constant(5));
       break;
     case Bytecodes::_lconst_0:
       push(SharkValue::jlong_constant(0));
       break;
     case Bytecodes::_lconst_1:
       push(SharkValue::jlong_constant(1));
       break;
     case Bytecodes::_fconst_0:
       push(SharkValue::jfloat_constant(0));
       break;
     case Bytecodes::_fconst_1:
       push(SharkValue::jfloat_constant(1));
       break;
     case Bytecodes::_fconst_2:
       push(SharkValue::jfloat_constant(2));
       break;
     case Bytecodes::_dconst_0:
       push(SharkValue::jdouble_constant(0));
       break;
     case Bytecodes::_dconst_1:
       push(SharkValue::jdouble_constant(1));
       break;
     case Bytecodes::_bipush:
       push(SharkValue::jint_constant(iter()->get_constant_u1()));
       break;
     case Bytecodes::_sipush:
       push(SharkValue::jint_constant(iter()->get_constant_u2()));
       break;
     case Bytecodes::_ldc:
     case Bytecodes::_ldc_w:
     case Bytecodes::_ldc2_w: {
       SharkConstant* constant = SharkConstant::for_ldc(iter());
       assert(constant->is_loaded(), "trap should handle unloaded classes");
       push(constant->value(builder()));
       break;
     }
     case Bytecodes::_iload_0:
     case Bytecodes::_lload_0:
     case Bytecodes::_fload_0:
     case Bytecodes::_dload_0:
     case Bytecodes::_aload_0:
       push(local(0));
       break;
     case Bytecodes::_iload_1:
     case Bytecodes::_lload_1:
     case Bytecodes::_fload_1:
     case Bytecodes::_dload_1:
     case Bytecodes::_aload_1:
       push(local(1));
       break;
     case Bytecodes::_iload_2:
     case Bytecodes::_lload_2:
     case Bytecodes::_fload_2:
     case Bytecodes::_dload_2:
     case Bytecodes::_aload_2:
       push(local(2));
       break;
     case Bytecodes::_iload_3:
     case Bytecodes::_lload_3:
     case Bytecodes::_fload_3:
     case Bytecodes::_dload_3:
     case Bytecodes::_aload_3:
       push(local(3));
       break;
     case Bytecodes::_iload:
     case Bytecodes::_lload:
     case Bytecodes::_fload:
     case Bytecodes::_dload:
     case Bytecodes::_aload:
       push(local(iter()->get_index()));
       break;
     case Bytecodes::_baload:
       do_aload(T_BYTE);
       break;
     case Bytecodes::_caload:
       do_aload(T_CHAR);
       break;
     case Bytecodes::_saload:
       do_aload(T_SHORT);
       break;
     case Bytecodes::_iaload:
       do_aload(T_INT);
       break;
     case Bytecodes::_laload:
       do_aload(T_LONG);
       break;
     case Bytecodes::_faload:
       do_aload(T_FLOAT);
       break;
     case Bytecodes::_daload:
       do_aload(T_DOUBLE);
       break;
     case Bytecodes::_aaload:
       do_aload(T_OBJECT);
       break;
     case Bytecodes::_istore_0:
     case Bytecodes::_lstore_0:
     case Bytecodes::_fstore_0:
     case Bytecodes::_dstore_0:
     case Bytecodes::_astore_0:
       set_local(0, pop());
       break;
     case Bytecodes::_istore_1:
     case Bytecodes::_lstore_1:
     case Bytecodes::_fstore_1:
     case Bytecodes::_dstore_1:
     case Bytecodes::_astore_1:
       set_local(1, pop());
       break;
     case Bytecodes::_istore_2:
     case Bytecodes::_lstore_2:
     case Bytecodes::_fstore_2:
     case Bytecodes::_dstore_2:
     case Bytecodes::_astore_2:
       set_local(2, pop());
       break;
     case Bytecodes::_istore_3:
     case Bytecodes::_lstore_3:
     case Bytecodes::_fstore_3:
     case Bytecodes::_dstore_3:
     case Bytecodes::_astore_3:
       set_local(3, pop());
       break;
     case Bytecodes::_istore:
     case Bytecodes::_lstore:
     case Bytecodes::_fstore:
     case Bytecodes::_dstore:
     case Bytecodes::_astore:
       set_local(iter()->get_index(), pop());
       break;
     case Bytecodes::_bastore:
       do_astore(T_BYTE);
       break;
     case Bytecodes::_castore:
       do_astore(T_CHAR);
       break;
     case Bytecodes::_sastore:
       do_astore(T_SHORT);
       break;
     case Bytecodes::_iastore:
       do_astore(T_INT);
       break;
     case Bytecodes::_lastore:
       do_astore(T_LONG);
       break;
     case Bytecodes::_fastore:
       do_astore(T_FLOAT);
       break;
     case Bytecodes::_dastore:
       do_astore(T_DOUBLE);
       break;
     case Bytecodes::_aastore:
       do_astore(T_OBJECT);
       break;
     case Bytecodes::_pop:
       xpop();
       break;
     case Bytecodes::_pop2:
       xpop();
       xpop();
       break;
     case Bytecodes::_swap:
       a = xpop();
       b = xpop();
       xpush(a);
       xpush(b);
       break;
     case Bytecodes::_dup:
       a = xpop();
       xpush(a);
       xpush(a);
       break;
     case Bytecodes::_dup_x1:
       a = xpop();
       b = xpop();
       xpush(a);
       xpush(b);
       xpush(a);
       break;
     case Bytecodes::_dup_x2:
       a = xpop();
       b = xpop();
       c = xpop();
       xpush(a);
       xpush(c);
       xpush(b);
       xpush(a);
       break;
     case Bytecodes::_dup2:
       a = xpop();
       b = xpop();
       xpush(b);
       xpush(a);
       xpush(b);
       xpush(a);
       break;
     case Bytecodes::_dup2_x1:
       a = xpop();
       b = xpop();
       c = xpop();
       xpush(b);
       xpush(a);
       xpush(c);
       xpush(b);
       xpush(a);
       break;
     case Bytecodes::_dup2_x2:
       a = xpop();
       b = xpop();
       c = xpop();
       d = xpop();
       xpush(b);
       xpush(a);
       xpush(d);
       xpush(c);
       xpush(b);
       xpush(a);
       break;
     case Bytecodes::_arraylength:
       do_arraylength();
       break;
     case Bytecodes::_getfield:
       do_getfield();
       break;
     case Bytecodes::_getstatic:
       do_getstatic();
       break;
     case Bytecodes::_putfield:
       do_putfield();
       break;
     case Bytecodes::_putstatic:
       do_putstatic();
       break;
     case Bytecodes::_iadd:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateAdd(a->jint_value(), b->jint_value()), false));
       break;
     case Bytecodes::_isub:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateSub(a->jint_value(), b->jint_value()), false));
       break;
     case Bytecodes::_imul:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateMul(a->jint_value(), b->jint_value()), false));
       break;
     case Bytecodes::_idiv:
       do_idiv();
       break;
     case Bytecodes::_irem:
       do_irem();
       break;
     case Bytecodes::_ineg:
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateNeg(a->jint_value()), a->zero_checked()));
       break;
     case Bytecodes::_ishl:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateShl(
           a->jint_value(),
           builder()->CreateAnd(
             b->jint_value(), LLVMValue::jint_constant(0x1f))), false));
       break;
     case Bytecodes::_ishr:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateAShr(
           a->jint_value(),
           builder()->CreateAnd(
             b->jint_value(), LLVMValue::jint_constant(0x1f))), false));
       break;
     case Bytecodes::_iushr:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateLShr(
           a->jint_value(),
           builder()->CreateAnd(
             b->jint_value(), LLVMValue::jint_constant(0x1f))), false));
       break;
     case Bytecodes::_iand:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateAnd(a->jint_value(), b->jint_value()), false));
       break;
     case Bytecodes::_ior:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateOr(a->jint_value(), b->jint_value()),
         a->zero_checked() && b->zero_checked()));
       break;
     case Bytecodes::_ixor:
       b = pop();
       a = pop();
       push(SharkValue::create_jint(
         builder()->CreateXor(a->jint_value(), b->jint_value()), false));
       break;
     case Bytecodes::_ladd:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateAdd(a->jlong_value(), b->jlong_value()), false));
       break;
     case Bytecodes::_lsub:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateSub(a->jlong_value(), b->jlong_value()), false));
       break;
     case Bytecodes::_lmul:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateMul(a->jlong_value(), b->jlong_value()), false));
       break;
     case Bytecodes::_ldiv:
       do_ldiv();
       break;
     case Bytecodes::_lrem:
       do_lrem();
       break;
     case Bytecodes::_lneg:
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateNeg(a->jlong_value()), a->zero_checked()));
       break;
     case Bytecodes::_lshl:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateShl(
           a->jlong_value(),
           builder()->CreateIntCast(
             builder()->CreateAnd(
               b->jint_value(), LLVMValue::jint_constant(0x3f)),
             SharkType::jlong_type(), true)), false));
       break;
     case Bytecodes::_lshr:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateAShr(
           a->jlong_value(),
           builder()->CreateIntCast(
             builder()->CreateAnd(
               b->jint_value(), LLVMValue::jint_constant(0x3f)),
             SharkType::jlong_type(), true)), false));
       break;
     case Bytecodes::_lushr:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateLShr(
           a->jlong_value(),
           builder()->CreateIntCast(
             builder()->CreateAnd(
               b->jint_value(), LLVMValue::jint_constant(0x3f)),
             SharkType::jlong_type(), true)), false));
       break;
     case Bytecodes::_land:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateAnd(a->jlong_value(), b->jlong_value()), false));
       break;
     case Bytecodes::_lor:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateOr(a->jlong_value(), b->jlong_value()),
         a->zero_checked() && b->zero_checked()));
       break;
     case Bytecodes::_lxor:
       b = pop();
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateXor(a->jlong_value(), b->jlong_value()), false));
       break;
     case Bytecodes::_fadd:
       b = pop();
       a = pop();
       push(SharkValue::create_jfloat(
         builder()->CreateFAdd(a->jfloat_value(), b->jfloat_value())));
       break;
     case Bytecodes::_fsub:
       b = pop();
       a = pop();
       push(SharkValue::create_jfloat(
         builder()->CreateFSub(a->jfloat_value(), b->jfloat_value())));
       break;
     case Bytecodes::_fmul:
       b = pop();
       a = pop();
       push(SharkValue::create_jfloat(
         builder()->CreateFMul(a->jfloat_value(), b->jfloat_value())));
       break;
     case Bytecodes::_fdiv:
       b = pop();
       a = pop();
       push(SharkValue::create_jfloat(
         builder()->CreateFDiv(a->jfloat_value(), b->jfloat_value())));
       break;
     case Bytecodes::_frem:
       b = pop();
       a = pop();
       push(SharkValue::create_jfloat(
         builder()->CreateFRem(a->jfloat_value(), b->jfloat_value())));
       break;
     case Bytecodes::_fneg:
       a = pop();
       push(SharkValue::create_jfloat(
         builder()->CreateFNeg(a->jfloat_value())));
       break;
     case Bytecodes::_dadd:
       b = pop();
       a = pop();
       push(SharkValue::create_jdouble(
         builder()->CreateFAdd(a->jdouble_value(), b->jdouble_value())));
       break;
     case Bytecodes::_dsub:
       b = pop();
       a = pop();
       push(SharkValue::create_jdouble(
         builder()->CreateFSub(a->jdouble_value(), b->jdouble_value())));
       break;
     case Bytecodes::_dmul:
       b = pop();
       a = pop();
       push(SharkValue::create_jdouble(
         builder()->CreateFMul(a->jdouble_value(), b->jdouble_value())));
       break;
     case Bytecodes::_ddiv:
       b = pop();
       a = pop();
       push(SharkValue::create_jdouble(
         builder()->CreateFDiv(a->jdouble_value(), b->jdouble_value())));
       break;
     case Bytecodes::_drem:
       b = pop();
       a = pop();
       push(SharkValue::create_jdouble(
         builder()->CreateFRem(a->jdouble_value(), b->jdouble_value())));
       break;
     case Bytecodes::_dneg:
       a = pop();
       push(SharkValue::create_jdouble(
         builder()->CreateFNeg(a->jdouble_value())));
       break;
     case Bytecodes::_iinc:
       i = iter()->get_index();
       set_local(
         i,
         SharkValue::create_jint(
           builder()->CreateAdd(
             LLVMValue::jint_constant(iter()->get_iinc_con()),
             local(i)->jint_value()), false));
       break;
     case Bytecodes::_lcmp:
       do_lcmp();
       break;
     case Bytecodes::_fcmpl:
       do_fcmp(false, false);
       break;
     case Bytecodes::_fcmpg:
       do_fcmp(false, true);
       break;
     case Bytecodes::_dcmpl:
       do_fcmp(true, false);
       break;
     case Bytecodes::_dcmpg:
       do_fcmp(true, true);
       break;
     case Bytecodes::_i2l:
       a = pop();
       push(SharkValue::create_jlong(
         builder()->CreateIntCast(
           a->jint_value(), SharkType::jlong_type(), true), a->zero_checked()));
       break;
     case Bytecodes::_i2f:
       push(SharkValue::create_jfloat(
         builder()->CreateSIToFP(
           pop()->jint_value(), SharkType::jfloat_type())));
       break;
     case Bytecodes::_i2d:
       push(SharkValue::create_jdouble(
         builder()->CreateSIToFP(
           pop()->jint_value(), SharkType::jdouble_type())));
       break;
     case Bytecodes::_l2i:
       push(SharkValue::create_jint(
         builder()->CreateIntCast(
           pop()->jlong_value(), SharkType::jint_type(), true), false));
       break;
     case Bytecodes::_l2f:
       push(SharkValue::create_jfloat(
         builder()->CreateSIToFP(
           pop()->jlong_value(), SharkType::jfloat_type())));
       break;
     case Bytecodes::_l2d:
       push(SharkValue::create_jdouble(
         builder()->CreateSIToFP(
           pop()->jlong_value(), SharkType::jdouble_type())));
       break;
     case Bytecodes::_f2i:
       push(SharkValue::create_jint(
         builder()->CreateCall(
           builder()->f2i(), pop()->jfloat_value()), false));
       break;
     case Bytecodes::_f2l:
       push(SharkValue::create_jlong(
         builder()->CreateCall(
           builder()->f2l(), pop()->jfloat_value()), false));
       break;
     case Bytecodes::_f2d:
       push(SharkValue::create_jdouble(
         builder()->CreateFPExt(
           pop()->jfloat_value(), SharkType::jdouble_type())));
       break;
     case Bytecodes::_d2i:
       push(SharkValue::create_jint(
         builder()->CreateCall(
           builder()->d2i(), pop()->jdouble_value()), false));
       break;
     case Bytecodes::_d2l:
       push(SharkValue::create_jlong(
         builder()->CreateCall(
           builder()->d2l(), pop()->jdouble_value()), false));
       break;
     case Bytecodes::_d2f:
       push(SharkValue::create_jfloat(
         builder()->CreateFPTrunc(
           pop()->jdouble_value(), SharkType::jfloat_type())));
       break;
     case Bytecodes::_i2b:
       push(SharkValue::create_jint(
         builder()->CreateAShr(
           builder()->CreateShl(
             pop()->jint_value(),
             LLVMValue::jint_constant(24)),
           LLVMValue::jint_constant(24)), false));
       break;
     case Bytecodes::_i2c:
       push(SharkValue::create_jint(
         builder()->CreateAnd(
             pop()->jint_value(),
             LLVMValue::jint_constant(0xffff)), false));
       break;
     case Bytecodes::_i2s:
       push(SharkValue::create_jint(
         builder()->CreateAShr(
           builder()->CreateShl(
             pop()->jint_value(),
             LLVMValue::jint_constant(16)),
           LLVMValue::jint_constant(16)), false));
       break;
     case Bytecodes::_return:
       do_return(T_VOID);
       break;
     case Bytecodes::_ireturn:
       do_return(T_INT);
       break;
     case Bytecodes::_lreturn:
       do_return(T_LONG);
       break;
     case Bytecodes::_freturn:
       do_return(T_FLOAT);
       break;
     case Bytecodes::_dreturn:
       do_return(T_DOUBLE);
       break;
     case Bytecodes::_areturn:
       do_return(T_OBJECT);
       break;
     case Bytecodes::_athrow:
       do_athrow();
       break;
     case Bytecodes::_goto:
     case Bytecodes::_goto_w:
       do_goto();
       break;
     case Bytecodes::_jsr:
     case Bytecodes::_jsr_w:
       do_jsr();
       break;
     case Bytecodes::_ret:
       do_ret();
       break;
     case Bytecodes::_ifnull:
       do_if(ICmpInst::ICMP_EQ, SharkValue::null(), pop());
       break;
     case Bytecodes::_ifnonnull:
       do_if(ICmpInst::ICMP_NE, SharkValue::null(), pop());
       break;
     case Bytecodes::_if_acmpeq:
       b = pop();
       a = pop();
       do_if(ICmpInst::ICMP_EQ, b, a);
       break;
     case Bytecodes::_if_acmpne:
       b = pop();
       a = pop();
       do_if(ICmpInst::ICMP_NE, b, a);
       break;
     case Bytecodes::_ifeq:
       do_if(ICmpInst::ICMP_EQ, SharkValue::jint_constant(0), pop());
       break;
     case Bytecodes::_ifne:
       do_if(ICmpInst::ICMP_NE, SharkValue::jint_constant(0), pop());
       break;
     case Bytecodes::_iflt:
       do_if(ICmpInst::ICMP_SLT, SharkValue::jint_constant(0), pop());
       break;
     case Bytecodes::_ifle:
       do_if(ICmpInst::ICMP_SLE, SharkValue::jint_constant(0), pop());
       break;
     case Bytecodes::_ifgt:
       do_if(ICmpInst::ICMP_SGT, SharkValue::jint_constant(0), pop());
       break;
     case Bytecodes::_ifge:
       do_if(ICmpInst::ICMP_SGE, SharkValue::jint_constant(0), pop());
       break;
     case Bytecodes::_if_icmpeq:
       b = pop();
       a = pop();
       do_if(ICmpInst::ICMP_EQ, b, a);
       break;
     case Bytecodes::_if_icmpne:
       b = pop();
       a = pop();
       do_if(ICmpInst::ICMP_NE, b, a);
       break;
     case Bytecodes::_if_icmplt:
       b = pop();
       a = pop();
       do_if(ICmpInst::ICMP_SLT, b, a);
       break;
     case Bytecodes::_if_icmple:
       b = pop();
       a = pop();
       do_if(ICmpInst::ICMP_SLE, b, a);
       break;
     case Bytecodes::_if_icmpgt:
       b = pop();
       a = pop();
       do_if(ICmpInst::ICMP_SGT, b, a);
       break;
     case Bytecodes::_if_icmpge:
       b = pop();
       a = pop();
       do_if(ICmpInst::ICMP_SGE, b, a);
       break;
     case Bytecodes::_tableswitch:
     case Bytecodes::_lookupswitch:
       do_switch();
       break;
     case Bytecodes::_invokestatic:
     case Bytecodes::_invokespecial:
     case Bytecodes::_invokevirtual:
     case Bytecodes::_invokeinterface:
       do_call();
       break;
     case Bytecodes::_instanceof:
       // This is a very common construct:
       //
       //  if (object instanceof Klass) {
       //    something = (Klass) object;
       //    ...
       //  }
       //
       // which gets compiled to something like this:
       //
       //  28: aload 9
       //  30: instanceof <Class Klass>
       //  33: ifeq 52
       //  36: aload 9
       //  38: checkcast <Class Klass>
       //
       // Handling both bytecodes at once allows us
       // to eliminate the checkcast.
       if (iter()->next_bci() < limit &&
           (iter()->next_bc() == Bytecodes::_ifeq ||
            iter()->next_bc() == Bytecodes::_ifne) &&
           (!UseLoopSafepoints ||
            iter()->next_get_dest() > iter()->next_bci())) {
         if (maybe_do_instanceof_if()) {
           iter()->next();
           if (SharkTraceBytecodes)
             tty->print_cr("%4d: %s", bci(), Bytecodes::name(bc()));
           break;
         }
       }
       // fall through
     case Bytecodes::_checkcast:
       do_instance_check();
       break;
     case Bytecodes::_new:
       do_new();
       break;
     case Bytecodes::_newarray:
       do_newarray();
       break;
     case Bytecodes::_anewarray:
       do_anewarray();
       break;
     case Bytecodes::_multianewarray:
       do_multianewarray();
       break;
     case Bytecodes::_monitorenter:
       do_monitorenter();
       break;
     case Bytecodes::_monitorexit:
       do_monitorexit();
       break;
     default:
       ShouldNotReachHere();
     }
   }
 }
 SharkState* SharkBlock::initial_current_state() {
   return entry_state()->copy();
 }
 int SharkBlock::switch_default_dest() {
   return iter()->get_dest_table(0);
 }
 int SharkBlock::switch_table_length() {
   switch(bc()) {
   case Bytecodes::_tableswitch:
     return iter()->get_int_table(2) - iter()->get_int_table(1) + 1;
   case Bytecodes::_lookupswitch:
     return iter()->get_int_table(1);
   default:
     ShouldNotReachHere();
   }
 }
 int SharkBlock::switch_key(int i) {
   switch(bc()) {
   case Bytecodes::_tableswitch:
     return iter()->get_int_table(1) + i;
   case Bytecodes::_lookupswitch:
     return iter()->get_int_table(2 + 2 * i);
   default:
     ShouldNotReachHere();
   }
 }
 int SharkBlock::switch_dest(int i) {
   switch(bc()) {
   case Bytecodes::_tableswitch:
     return iter()->get_dest_table(i + 3);
   case Bytecodes::_lookupswitch:
     return iter()->get_dest_table(2 + 2 * i + 1);
   default:
     ShouldNotReachHere();
   }
 }
 void SharkBlock::do_div_or_rem(bool is_long, bool is_rem) {
   SharkValue *sb = pop();
   SharkValue *sa = pop();
   check_divide_by_zero(sb);
   Value *a, *b, *p, *q;
   if (is_long) {
     a = sa->jlong_value();
     b = sb->jlong_value();
     p = LLVMValue::jlong_constant(0x8000000000000000LL);
     q = LLVMValue::jlong_constant(-1);
   }
   else {
     a = sa->jint_value();
     b = sb->jint_value();
     p = LLVMValue::jint_constant(0x80000000);
     q = LLVMValue::jint_constant(-1);
   }
   BasicBlock *ip           = builder()->GetBlockInsertionPoint();
   BasicBlock *special_case = builder()->CreateBlock(ip, "special_case");
   BasicBlock *general_case = builder()->CreateBlock(ip, "general_case");
   BasicBlock *done         = builder()->CreateBlock(ip, "done");
   builder()->CreateCondBr(
     builder()->CreateAnd(
       builder()->CreateICmpEQ(a, p),
       builder()->CreateICmpEQ(b, q)),
     special_case, general_case);
   builder()->SetInsertPoint(special_case);
   Value *special_result;
   if (is_rem) {
     if (is_long)
       special_result = LLVMValue::jlong_constant(0);
     else
       special_result = LLVMValue::jint_constant(0);
   }
   else {
     special_result = a;
   }
   builder()->CreateBr(done);
   builder()->SetInsertPoint(general_case);
   Value *general_result;
   if (is_rem)
     general_result = builder()->CreateSRem(a, b);
   else
     general_result = builder()->CreateSDiv(a, b);
   builder()->CreateBr(done);
   builder()->SetInsertPoint(done);
   PHINode *result;
   if (is_long)
     result = builder()->CreatePHI(SharkType::jlong_type(), 0, "result");
   else
     result = builder()->CreatePHI(SharkType::jint_type(), 0, "result");
   result->addIncoming(special_result, special_case);
   result->addIncoming(general_result, general_case);
   if (is_long)
     push(SharkValue::create_jlong(result, false));
   else
     push(SharkValue::create_jint(result, false));
 }
 void SharkBlock::do_field_access(bool is_get, bool is_field) {
   bool will_link;
   ciField *field = iter()->get_field(will_link);
   assert(will_link, "typeflow responsibility");
   assert(is_field != field->is_static(), "mismatch");
   // Pop the value off the stack where necessary
   SharkValue *value = NULL;
   if (!is_get)
     value = pop();
   // Find the object we're accessing, if necessary
   Value *object = NULL;
   if (is_field) {
     SharkValue *value = pop();
     check_null(value);
     object = value->generic_value();
   }
   if (is_get && field->is_constant() && field->is_static()) {
     SharkConstant *constant = SharkConstant::for_field(iter());
     if (constant->is_loaded())
       value = constant->value(builder());
   }
   if (!is_get || value == NULL) {
     if (!is_field) {
       object = builder()->CreateInlineOop(field->holder()->java_mirror());
     }
     BasicType   basic_type = field->type()->basic_type();
     Type *stack_type = SharkType::to_stackType(basic_type);
     Type *field_type = SharkType::to_arrayType(basic_type);
     Type *type = field_type;
     if (field->is_volatile()) {
       if (field_type == SharkType::jfloat_type()) {
         type = SharkType::jint_type();
       } else if (field_type == SharkType::jdouble_type()) {
         type = SharkType::jlong_type();
       }
     }
     Value *addr = builder()->CreateAddressOfStructEntry(
       object, in_ByteSize(field->offset_in_bytes()),
       PointerType::getUnqual(type),
       "addr");
     // Do the access
     if (is_get) {
       Value* field_value;
       if (field->is_volatile()) {
         field_value = builder()->CreateAtomicLoad(addr);
         field_value = builder()->CreateBitCast(field_value, field_type);
       } else {
         field_value = builder()->CreateLoad(addr);
       }
       if (field_type != stack_type) {
         field_value = builder()->CreateIntCast(
           field_value, stack_type, basic_type != T_CHAR);
       }
       value = SharkValue::create_generic(field->type(), field_value, false);
     }
     else {
       Value *field_value = value->generic_value();
       if (field_type != stack_type) {
         field_value = builder()->CreateIntCast(
           field_value, field_type, basic_type != T_CHAR);
       }
       if (field->is_volatile()) {
         field_value = builder()->CreateBitCast(field_value, type);
         builder()->CreateAtomicStore(field_value, addr);
       } else {
         builder()->CreateStore(field_value, addr);
       }
       if (!field->type()->is_primitive_type()) {
         builder()->CreateUpdateBarrierSet(oopDesc::bs(), addr);
       }
     }
   }
   // Push the value onto the stack where necessary
   if (is_get)
     push(value);
 }
 void SharkBlock::do_lcmp() {
   Value *b = pop()->jlong_value();
   Value *a = pop()->jlong_value();
   BasicBlock *ip   = builder()->GetBlockInsertionPoint();
   BasicBlock *ne   = builder()->CreateBlock(ip, "lcmp_ne");
   BasicBlock *lt   = builder()->CreateBlock(ip, "lcmp_lt");
   BasicBlock *gt   = builder()->CreateBlock(ip, "lcmp_gt");
   BasicBlock *done = builder()->CreateBlock(ip, "done");
   BasicBlock *eq = builder()->GetInsertBlock();
   builder()->CreateCondBr(builder()->CreateICmpEQ(a, b), done, ne);
   builder()->SetInsertPoint(ne);
   builder()->CreateCondBr(builder()->CreateICmpSLT(a, b), lt, gt);
   builder()->SetInsertPoint(lt);
   builder()->CreateBr(done);
   builder()->SetInsertPoint(gt);
   builder()->CreateBr(done);
   builder()->SetInsertPoint(done);
   PHINode *result = builder()->CreatePHI(SharkType::jint_type(), 0, "result");
   result->addIncoming(LLVMValue::jint_constant(-1), lt);
   result->addIncoming(LLVMValue::jint_constant(0),  eq);
   result->addIncoming(LLVMValue::jint_constant(1),  gt);
   push(SharkValue::create_jint(result, false));
 }
 void SharkBlock::do_fcmp(bool is_double, bool unordered_is_greater) {
   Value *a, *b;
   if (is_double) {
     b = pop()->jdouble_value();
     a = pop()->jdouble_value();
   }
   else {
     b = pop()->jfloat_value();
     a = pop()->jfloat_value();
   }
   BasicBlock *ip      = builder()->GetBlockInsertionPoint();
   BasicBlock *ordered = builder()->CreateBlock(ip, "ordered");
   BasicBlock *ge      = builder()->CreateBlock(ip, "fcmp_ge");
   BasicBlock *lt      = builder()->CreateBlock(ip, "fcmp_lt");
   BasicBlock *eq      = builder()->CreateBlock(ip, "fcmp_eq");
   BasicBlock *gt      = builder()->CreateBlock(ip, "fcmp_gt");
   BasicBlock *done    = builder()->CreateBlock(ip, "done");
   builder()->CreateCondBr(
     builder()->CreateFCmpUNO(a, b),
     unordered_is_greater ? gt : lt, ordered);
   builder()->SetInsertPoint(ordered);
   builder()->CreateCondBr(builder()->CreateFCmpULT(a, b), lt, ge);
   builder()->SetInsertPoint(ge);
   builder()->CreateCondBr(builder()->CreateFCmpUGT(a, b), gt, eq);
   builder()->SetInsertPoint(lt);
   builder()->CreateBr(done);
   builder()->SetInsertPoint(gt);
   builder()->CreateBr(done);
   builder()->SetInsertPoint(eq);
   builder()->CreateBr(done);
   builder()->SetInsertPoint(done);
   PHINode *result = builder()->CreatePHI(SharkType::jint_type(), 0, "result");
   result->addIncoming(LLVMValue::jint_constant(-1), lt);
   result->addIncoming(LLVMValue::jint_constant(0),  eq);
   result->addIncoming(LLVMValue::jint_constant(1),  gt);
   push(SharkValue::create_jint(result, false));
 }
 void SharkBlock::emit_IR() {
   ShouldNotCallThis();
 }
 SharkState* SharkBlock::entry_state() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_zero_check(SharkValue* value) {
   ShouldNotCallThis();
 }
 void SharkBlock::maybe_add_backedge_safepoint() {
   ShouldNotCallThis();
 }
 bool SharkBlock::has_trap() {
   return false;
 }
 int SharkBlock::trap_request() {
   ShouldNotCallThis();
 }
 int SharkBlock::trap_bci() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_trap(int trap_request) {
   ShouldNotCallThis();
 }
 void SharkBlock::do_arraylength() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_aload(BasicType basic_type) {
   ShouldNotCallThis();
 }
 void SharkBlock::do_astore(BasicType basic_type) {
   ShouldNotCallThis();
 }
 void SharkBlock::do_return(BasicType type) {
   ShouldNotCallThis();
 }
 void SharkBlock::do_athrow() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_goto() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_jsr() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_ret() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_if(ICmpInst::Predicate p, SharkValue* b, SharkValue* a) {
   ShouldNotCallThis();
 }
 void SharkBlock::do_switch() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_call() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_instance_check() {
   ShouldNotCallThis();
 }
 bool SharkBlock::maybe_do_instanceof_if() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_new() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_newarray() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_anewarray() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_multianewarray() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_monitorenter() {
   ShouldNotCallThis();
 }
 void SharkBlock::do_monitorexit() {
   ShouldNotCallThis();
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/shark/sharkBlock.cpp@606eada1bf86 (annotated)

src/share/vm/shark/sharkBlock.cpp