Mercurial > hg > graal-compiler
view src/share/vm/c1/c1_FrameMap.cpp @ 13263:81055aacb98d
removed CompilerToVM.getJavaField
author | twisti |
---|---|
date | Sun, 08 Dec 2013 18:06:28 -0800 |
parents | 3c9db54c2660 |
children | de6a9e811145 6a936747b569 |
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/* * Copyright (c) 2000, 2012, 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. * */ #include "precompiled.hpp" #include "c1/c1_FrameMap.hpp" #include "c1/c1_LIR.hpp" #include "runtime/sharedRuntime.hpp" #ifdef TARGET_ARCH_x86 # include "vmreg_x86.inline.hpp" #endif #ifdef TARGET_ARCH_sparc # include "vmreg_sparc.inline.hpp" #endif #ifdef TARGET_ARCH_zero # include "vmreg_zero.inline.hpp" #endif #ifdef TARGET_ARCH_arm # include "vmreg_arm.inline.hpp" #endif #ifdef TARGET_ARCH_ppc # include "vmreg_ppc.inline.hpp" #endif //----------------------------------------------------- // Convert method signature into an array of BasicTypes for the arguments BasicTypeArray* FrameMap::signature_type_array_for(const ciMethod* method) { ciSignature* sig = method->signature(); BasicTypeList* sta = new BasicTypeList(method->arg_size()); // add receiver, if any if (!method->is_static()) sta->append(T_OBJECT); // add remaining arguments for (int i = 0; i < sig->count(); i++) { ciType* type = sig->type_at(i); BasicType t = type->basic_type(); if (t == T_ARRAY) { t = T_OBJECT; } sta->append(t); } // done return sta; } CallingConvention* FrameMap::java_calling_convention(const BasicTypeArray* signature, bool outgoing) { // compute the size of the arguments first. The signature array // that java_calling_convention takes includes a T_VOID after double // work items but our signatures do not. int i; int sizeargs = 0; for (i = 0; i < signature->length(); i++) { sizeargs += type2size[signature->at(i)]; } BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs); VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); int sig_index = 0; for (i = 0; i < sizeargs; i++, sig_index++) { sig_bt[i] = signature->at(sig_index); if (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) { sig_bt[i + 1] = T_VOID; i++; } } intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, outgoing); LIR_OprList* args = new LIR_OprList(signature->length()); for (i = 0; i < sizeargs;) { BasicType t = sig_bt[i]; assert(t != T_VOID, "should be skipping these"); LIR_Opr opr = map_to_opr(t, regs + i, outgoing); args->append(opr); if (opr->is_address()) { LIR_Address* addr = opr->as_address_ptr(); assert(addr->disp() == (int)addr->disp(), "out of range value"); out_preserve = MAX2(out_preserve, (intptr_t)(addr->disp() - STACK_BIAS) / 4); } i += type2size[t]; } assert(args->length() == signature->length(), "size mismatch"); out_preserve += SharedRuntime::out_preserve_stack_slots(); if (outgoing) { // update the space reserved for arguments. update_reserved_argument_area_size(out_preserve * BytesPerWord); } return new CallingConvention(args, out_preserve); } CallingConvention* FrameMap::c_calling_convention(const BasicTypeArray* signature) { // compute the size of the arguments first. The signature array // that java_calling_convention takes includes a T_VOID after double // work items but our signatures do not. int i; int sizeargs = 0; for (i = 0; i < signature->length(); i++) { sizeargs += type2size[signature->at(i)]; } BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs); VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); int sig_index = 0; for (i = 0; i < sizeargs; i++, sig_index++) { sig_bt[i] = signature->at(sig_index); if (sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) { sig_bt[i + 1] = T_VOID; i++; } } intptr_t out_preserve = SharedRuntime::c_calling_convention(sig_bt, regs, sizeargs); LIR_OprList* args = new LIR_OprList(signature->length()); for (i = 0; i < sizeargs;) { BasicType t = sig_bt[i]; assert(t != T_VOID, "should be skipping these"); // C calls are always outgoing bool outgoing = true; LIR_Opr opr = map_to_opr(t, regs + i, outgoing); // they might be of different types if for instance floating point // values are passed in cpu registers, but the sizes must match. assert(type2size[opr->type()] == type2size[t], "type mismatch"); args->append(opr); if (opr->is_address()) { LIR_Address* addr = opr->as_address_ptr(); out_preserve = MAX2(out_preserve, (intptr_t)(addr->disp() - STACK_BIAS) / 4); } i += type2size[t]; } assert(args->length() == signature->length(), "size mismatch"); out_preserve += SharedRuntime::out_preserve_stack_slots(); update_reserved_argument_area_size(out_preserve * BytesPerWord); return new CallingConvention(args, out_preserve); } //-------------------------------------------------------- // FrameMap //-------------------------------------------------------- bool FrameMap::_init_done = false; Register FrameMap::_cpu_rnr2reg [FrameMap::nof_cpu_regs]; int FrameMap::_cpu_reg2rnr [FrameMap::nof_cpu_regs]; FrameMap::FrameMap(ciMethod* method, int monitors, int reserved_argument_area_size) { assert(_init_done, "should already be completed"); _framesize = -1; _num_spills = -1; assert(monitors >= 0, "not set"); _num_monitors = monitors; assert(reserved_argument_area_size >= 0, "not set"); _reserved_argument_area_size = MAX2(4, reserved_argument_area_size) * BytesPerWord; _argcount = method->arg_size(); _argument_locations = new intArray(_argcount, -1); _incoming_arguments = java_calling_convention(signature_type_array_for(method), false); _oop_map_arg_count = _incoming_arguments->reserved_stack_slots(); int java_index = 0; for (int i = 0; i < _incoming_arguments->length(); i++) { LIR_Opr opr = _incoming_arguments->at(i); if (opr->is_address()) { LIR_Address* address = opr->as_address_ptr(); _argument_locations->at_put(java_index, address->disp() - STACK_BIAS); _incoming_arguments->args()->at_put(i, LIR_OprFact::stack(java_index, as_BasicType(as_ValueType(address->type())))); } java_index += type2size[opr->type()]; } } bool FrameMap::finalize_frame(int nof_slots) { assert(nof_slots >= 0, "must be positive"); assert(_num_spills == -1, "can only be set once"); _num_spills = nof_slots; assert(_framesize == -1, "should only be calculated once"); _framesize = round_to(in_bytes(sp_offset_for_monitor_base(0)) + _num_monitors * sizeof(BasicObjectLock) + sizeof(intptr_t) + // offset of deopt orig pc frame_pad_in_bytes, StackAlignmentInBytes) / 4; int java_index = 0; for (int i = 0; i < _incoming_arguments->length(); i++) { LIR_Opr opr = _incoming_arguments->at(i); if (opr->is_stack()) { _argument_locations->at_put(java_index, in_bytes(framesize_in_bytes()) + _argument_locations->at(java_index)); } java_index += type2size[opr->type()]; } // make sure it's expressible on the platform return validate_frame(); } VMReg FrameMap::sp_offset2vmreg(ByteSize offset) const { int offset_in_bytes = in_bytes(offset); assert(offset_in_bytes % 4 == 0, "must be multiple of 4 bytes"); assert(offset_in_bytes / 4 < framesize() + oop_map_arg_count(), "out of range"); return VMRegImpl::stack2reg(offset_in_bytes / 4); } bool FrameMap::location_for_sp_offset(ByteSize byte_offset_from_sp, Location::Type loc_type, Location* loc) const { int offset = in_bytes(byte_offset_from_sp); assert(offset >= 0, "incorrect offset"); if (!Location::legal_offset_in_bytes(offset)) { return false; } Location tmp_loc = Location::new_stk_loc(loc_type, offset); *loc = tmp_loc; return true; } bool FrameMap::locations_for_slot (int index, Location::Type loc_type, Location* loc, Location* second) const { ByteSize offset_from_sp = sp_offset_for_slot(index); if (!location_for_sp_offset(offset_from_sp, loc_type, loc)) { return false; } if (second != NULL) { // two word item offset_from_sp = offset_from_sp + in_ByteSize(4); return location_for_sp_offset(offset_from_sp, loc_type, second); } return true; } ////////////////////// // Public accessors // ////////////////////// ByteSize FrameMap::sp_offset_for_slot(const int index) const { if (index < argcount()) { int offset = _argument_locations->at(index); assert(offset != -1, "not a memory argument"); assert(offset >= framesize() * 4, "argument inside of frame"); return in_ByteSize(offset); } ByteSize offset = sp_offset_for_spill(index - argcount()); assert(in_bytes(offset) < framesize() * 4, "spill outside of frame"); return offset; } ByteSize FrameMap::sp_offset_for_double_slot(const int index) const { ByteSize offset = sp_offset_for_slot(index); if (index >= argcount()) { assert(in_bytes(offset) + 4 < framesize() * 4, "spill outside of frame"); } return offset; } ByteSize FrameMap::sp_offset_for_spill(const int index) const { assert(index >= 0 && index < _num_spills, "out of range"); int offset = round_to(first_available_sp_in_frame + _reserved_argument_area_size, sizeof(double)) + index * spill_slot_size_in_bytes; return in_ByteSize(offset); } ByteSize FrameMap::sp_offset_for_monitor_base(const int index) const { int end_of_spills = round_to(first_available_sp_in_frame + _reserved_argument_area_size, sizeof(double)) + _num_spills * spill_slot_size_in_bytes; int offset = (int) round_to(end_of_spills, HeapWordSize) + index * sizeof(BasicObjectLock); return in_ByteSize(offset); } ByteSize FrameMap::sp_offset_for_monitor_lock(int index) const { check_monitor_index(index); return sp_offset_for_monitor_base(index) + in_ByteSize(BasicObjectLock::lock_offset_in_bytes());; } ByteSize FrameMap::sp_offset_for_monitor_object(int index) const { check_monitor_index(index); return sp_offset_for_monitor_base(index) + in_ByteSize(BasicObjectLock::obj_offset_in_bytes()); } // For OopMaps, map a local variable or spill index to an VMReg. // This is the offset from sp() in the frame of the slot for the index, // skewed by SharedInfo::stack0 to indicate a stack location (vs.a register.) // // C ABI size + // framesize + framesize + // stack0 stack0 stack0 0 <- VMReg->value() // | | | <registers> | // ..........|..............|..............|.............| // 0 1 2 3 | <C ABI area> | 4 5 6 ...... | <- local indices // ^ ^ sp() // | | // arguments non-argument locals VMReg FrameMap::regname(LIR_Opr opr) const { if (opr->is_single_cpu()) { assert(!opr->is_virtual(), "should not see virtual registers here"); return opr->as_register()->as_VMReg(); } else if (opr->is_single_stack()) { return sp_offset2vmreg(sp_offset_for_slot(opr->single_stack_ix())); } else if (opr->is_address()) { LIR_Address* addr = opr->as_address_ptr(); assert(addr->base() == stack_pointer(), "sp based addressing only"); return sp_offset2vmreg(in_ByteSize(addr->index()->as_jint())); } ShouldNotReachHere(); return VMRegImpl::Bad(); } // ------------ extra spill slots ---------------