jdk8-mips64-public/hotspot: src/share/vm/c1/c1

8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash
Summary: Ensure ensure correct initialization of compiler runtime
Reviewed-by: kvn, twisti

     1 /*

     2  * Copyright (c) 2000, 2012, 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 "c1/c1_FrameMap.hpp"

    27 #include "c1/c1_LIR.hpp"

    28 #include "runtime/sharedRuntime.hpp"

    29 #ifdef TARGET_ARCH_x86

    30 # include "vmreg_x86.inline.hpp"

    31 #endif

    32 #ifdef TARGET_ARCH_sparc

    33 # include "vmreg_sparc.inline.hpp"

    34 #endif

    35 #ifdef TARGET_ARCH_zero

    36 # include "vmreg_zero.inline.hpp"

    37 #endif

    38 #ifdef TARGET_ARCH_arm

    39 # include "vmreg_arm.inline.hpp"

    40 #endif

    41 #ifdef TARGET_ARCH_ppc

    42 # include "vmreg_ppc.inline.hpp"

    43 #endif

    47 //-----------------------------------------------------

    49 // Convert method signature into an array of BasicTypes for the arguments

    50 BasicTypeArray* FrameMap::signature_type_array_for(const ciMethod* method) {

    51   ciSignature* sig = method->signature();

    52   BasicTypeList* sta = new BasicTypeList(method->arg_size());

    53   // add receiver, if any

    54   if (!method->is_static()) sta->append(T_OBJECT);

    55   // add remaining arguments

    56   for (int i = 0; i < sig->count(); i++) {

    57     ciType* type = sig->type_at(i);

    58     BasicType t = type->basic_type();

    59     if (t == T_ARRAY) {

    60       t = T_OBJECT;

    61     }

    62     sta->append(t);

    63   }

    64   // done

    65   return sta;

    66 }

    69 CallingConvention* FrameMap::java_calling_convention(const BasicTypeArray* signature, bool outgoing) {

    70   // compute the size of the arguments first.  The signature array

    71   // that java_calling_convention takes includes a T_VOID after double

    72   // work items but our signatures do not.

    73   int i;

    74   int sizeargs = 0;

    75   for (i = 0; i < signature->length(); i++) {

    76     sizeargs += type2size[signature->at(i)];

    77   }

    79   BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs);

    80   VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs);

    81   int sig_index = 0;

    82   for (i = 0; i < sizeargs; i++, sig_index++) {

    83     sig_bt[i] = signature->at(sig_index);

    84     if (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) {

    85       sig_bt[i + 1] = T_VOID;

    86       i++;

    87     }

    88   }

    90   intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, outgoing);

    91   LIR_OprList* args = new LIR_OprList(signature->length());

    92   for (i = 0; i < sizeargs;) {

    93     BasicType t = sig_bt[i];

    94     assert(t != T_VOID, "should be skipping these");

    95     LIR_Opr opr = map_to_opr(t, regs + i, outgoing);

    96     args->append(opr);

    97     if (opr->is_address()) {

    98       LIR_Address* addr = opr->as_address_ptr();

    99       assert(addr->disp() == (int)addr->disp(), "out of range value");

   100       out_preserve = MAX2(out_preserve, (intptr_t)(addr->disp() - STACK_BIAS) / 4);

   101     }

   102     i += type2size[t];

   103   }

   104   assert(args->length() == signature->length(), "size mismatch");

   105   out_preserve += SharedRuntime::out_preserve_stack_slots();

   107   if (outgoing) {

   108     // update the space reserved for arguments.

   109     update_reserved_argument_area_size(out_preserve * BytesPerWord);

   110   }

   111   return new CallingConvention(args, out_preserve);

   112 }

   115 CallingConvention* FrameMap::c_calling_convention(const BasicTypeArray* signature) {

   116   // compute the size of the arguments first.  The signature array

   117   // that java_calling_convention takes includes a T_VOID after double

   118   // work items but our signatures do not.

   119   int i;

   120   int sizeargs = 0;

   121   for (i = 0; i < signature->length(); i++) {

   122     sizeargs += type2size[signature->at(i)];

   123   }

   125   BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs);

   126   VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs);

   127   int sig_index = 0;

   128   for (i = 0; i < sizeargs; i++, sig_index++) {

   129     sig_bt[i] = signature->at(sig_index);

   130     if (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) {

   131       sig_bt[i + 1] = T_VOID;

   132       i++;

   133     }

   134   }

   136   intptr_t out_preserve = SharedRuntime::c_calling_convention(sig_bt, regs, sizeargs);

   137   LIR_OprList* args = new LIR_OprList(signature->length());

   138   for (i = 0; i < sizeargs;) {

   139     BasicType t = sig_bt[i];

   140     assert(t != T_VOID, "should be skipping these");

   142     // C calls are always outgoing

   143     bool outgoing = true;

   144     LIR_Opr opr = map_to_opr(t, regs + i, outgoing);

   145     // they might be of different types if for instance floating point

   146     // values are passed in cpu registers, but the sizes must match.

   147     assert(type2size[opr->type()] == type2size[t], "type mismatch");

   148     args->append(opr);

   149     if (opr->is_address()) {

   150       LIR_Address* addr = opr->as_address_ptr();

   151       out_preserve = MAX2(out_preserve, (intptr_t)(addr->disp() - STACK_BIAS) / 4);

   152     }

   153     i += type2size[t];

   154   }

   155   assert(args->length() == signature->length(), "size mismatch");

   156   out_preserve += SharedRuntime::out_preserve_stack_slots();

   157   update_reserved_argument_area_size(out_preserve * BytesPerWord);

   158   return new CallingConvention(args, out_preserve);

   159 }

   162 //--------------------------------------------------------

   163 //               FrameMap

   164 //--------------------------------------------------------

   166 bool      FrameMap::_init_done = false;

   167 Register  FrameMap::_cpu_rnr2reg [FrameMap::nof_cpu_regs];

   168 int       FrameMap::_cpu_reg2rnr [FrameMap::nof_cpu_regs];

   171 FrameMap::FrameMap(ciMethod* method, int monitors, int reserved_argument_area_size) {

   172   assert(_init_done, "should already be completed");

   174   _framesize = -1;

   175   _num_spills = -1;

   177   assert(monitors >= 0, "not set");

   178   _num_monitors = monitors;

   179   assert(reserved_argument_area_size >= 0, "not set");

   180   _reserved_argument_area_size = MAX2(4, reserved_argument_area_size) * BytesPerWord;

   182   _argcount = method->arg_size();

   183   _argument_locations = new intArray(_argcount, -1);

   184   _incoming_arguments = java_calling_convention(signature_type_array_for(method), false);

   185   _oop_map_arg_count = _incoming_arguments->reserved_stack_slots();

   187   int java_index = 0;

   188   for (int i = 0; i < _incoming_arguments->length(); i++) {

   189     LIR_Opr opr = _incoming_arguments->at(i);

   190     if (opr->is_address()) {

   191       LIR_Address* address = opr->as_address_ptr();

   192       _argument_locations->at_put(java_index, address->disp() - STACK_BIAS);

   193       _incoming_arguments->args()->at_put(i, LIR_OprFact::stack(java_index, as_BasicType(as_ValueType(address->type()))));

   194     }

   195     java_index += type2size[opr->type()];

   196   }

   198 }

   201 bool FrameMap::finalize_frame(int nof_slots) {

   202   assert(nof_slots >= 0, "must be positive");

   203   assert(_num_spills == -1, "can only be set once");

   204   _num_spills = nof_slots;

   205   assert(_framesize == -1, "should only be calculated once");

   206   _framesize =  round_to(in_bytes(sp_offset_for_monitor_base(0)) +

   207                          _num_monitors * sizeof(BasicObjectLock) +

   208                          sizeof(intptr_t) +                        // offset of deopt orig pc

   209                          frame_pad_in_bytes,

   210                          StackAlignmentInBytes) / 4;

   211   int java_index = 0;

   212   for (int i = 0; i < _incoming_arguments->length(); i++) {

   213     LIR_Opr opr = _incoming_arguments->at(i);

   214     if (opr->is_stack()) {

   215       _argument_locations->at_put(java_index, in_bytes(framesize_in_bytes()) +

   216                                   _argument_locations->at(java_index));

   217     }

   218     java_index += type2size[opr->type()];

   219   }

   220   // make sure it's expressible on the platform

   221   return validate_frame();

   222 }

   224 VMReg FrameMap::sp_offset2vmreg(ByteSize offset) const {

   225   int offset_in_bytes = in_bytes(offset);

   226   assert(offset_in_bytes % 4 == 0, "must be multiple of 4 bytes");

   227   assert(offset_in_bytes / 4 < framesize() + oop_map_arg_count(), "out of range");

   228   return VMRegImpl::stack2reg(offset_in_bytes / 4);

   229 }

   232 bool FrameMap::location_for_sp_offset(ByteSize byte_offset_from_sp,

   233                                       Location::Type loc_type,

   234                                       Location* loc) const {

   235   int offset = in_bytes(byte_offset_from_sp);

   236   assert(offset >= 0, "incorrect offset");

   237   if (!Location::legal_offset_in_bytes(offset)) {

   238     return false;

   239   }

   240   Location tmp_loc = Location::new_stk_loc(loc_type, offset);

   241   *loc = tmp_loc;

   242   return true;

   243 }

   246 bool FrameMap::locations_for_slot  (int index, Location::Type loc_type,

   247                                      Location* loc, Location* second) const {

   248   ByteSize offset_from_sp = sp_offset_for_slot(index);

   249   if (!location_for_sp_offset(offset_from_sp, loc_type, loc)) {

   250     return false;

   251   }

   252   if (second != NULL) {

   253     // two word item

   254     offset_from_sp = offset_from_sp + in_ByteSize(4);

   255     return location_for_sp_offset(offset_from_sp, loc_type, second);

   256   }

   257   return true;

   258 }

   260 //////////////////////

   261 // Public accessors //

   262 //////////////////////

   265 ByteSize FrameMap::sp_offset_for_slot(const int index) const {

   266   if (index < argcount()) {

   267     int offset = _argument_locations->at(index);

   268     assert(offset != -1, "not a memory argument");

   269     assert(offset >= framesize() * 4, "argument inside of frame");

   270     return in_ByteSize(offset);

   271   }

   272   ByteSize offset = sp_offset_for_spill(index - argcount());

   273   assert(in_bytes(offset) < framesize() * 4, "spill outside of frame");

   274   return offset;

   275 }

   278 ByteSize FrameMap::sp_offset_for_double_slot(const int index) const {

   279   ByteSize offset = sp_offset_for_slot(index);

   280   if (index >= argcount()) {

   281     assert(in_bytes(offset) + 4 < framesize() * 4, "spill outside of frame");

   282   }

   283   return offset;

   284 }

   287 ByteSize FrameMap::sp_offset_for_spill(const int index) const {

   288   assert(index >= 0 && index < _num_spills, "out of range");

   289   int offset = round_to(first_available_sp_in_frame + _reserved_argument_area_size, sizeof(double)) +

   290     index * spill_slot_size_in_bytes;

   291   return in_ByteSize(offset);

   292 }

   294 ByteSize FrameMap::sp_offset_for_monitor_base(const int index) const {

   295   int end_of_spills = round_to(first_available_sp_in_frame + _reserved_argument_area_size, sizeof(double)) +

   296     _num_spills * spill_slot_size_in_bytes;

   297   int offset = (int) round_to(end_of_spills, HeapWordSize) + index * sizeof(BasicObjectLock);

   298   return in_ByteSize(offset);

   299 }

   301 ByteSize FrameMap::sp_offset_for_monitor_lock(int index) const {

   302   check_monitor_index(index);

   303   return sp_offset_for_monitor_base(index) + in_ByteSize(BasicObjectLock::lock_offset_in_bytes());;

   304 }

   306 ByteSize FrameMap::sp_offset_for_monitor_object(int index) const {

   307   check_monitor_index(index);

   308   return sp_offset_for_monitor_base(index) + in_ByteSize(BasicObjectLock::obj_offset_in_bytes());

   309 }

   312 // For OopMaps, map a local variable or spill index to an VMReg.

   313 // This is the offset from sp() in the frame of the slot for the index,

   314 // skewed by SharedInfo::stack0 to indicate a stack location (vs.a register.)

   315 //

   316 //         C ABI size +

   317 //         framesize +     framesize +

   318 //         stack0          stack0         stack0          0 <- VMReg->value()

   319 //            |              |              | <registers> |

   320 //  ..........|..............|..............|.............|

   321 //    0 1 2 3 | <C ABI area> | 4 5 6 ...... |               <- local indices

   322 //    ^                        ^          sp()

   323 //    |                        |

   324 //  arguments            non-argument locals

   327 VMReg FrameMap::regname(LIR_Opr opr) const {

   328   if (opr->is_single_cpu()) {

   329     assert(!opr->is_virtual(), "should not see virtual registers here");

   330     return opr->as_register()->as_VMReg();

   331   } else if (opr->is_single_stack()) {

   332     return sp_offset2vmreg(sp_offset_for_slot(opr->single_stack_ix()));

   333   } else if (opr->is_address()) {

   334     LIR_Address* addr = opr->as_address_ptr();

   335     assert(addr->base() == stack_pointer(), "sp based addressing only");

   336     return sp_offset2vmreg(in_ByteSize(addr->index()->as_jint()));

   337   }

   338   ShouldNotReachHere();

   339   return VMRegImpl::Bad();

   340 }

   345 // ------------ extra spill slots ---------------

src/share/vm/c1/c1_FrameMap.cpp@469216acdb28

src/share/vm/c1/c1_FrameMap.cpp

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/c1/c1_FrameMap.cpp@469216acdb28

src/share/vm/c1/c1_FrameMap.cpp