c1_LIRAssembler.hpp revision 3602:da91efe96a93
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 */ 24 25#ifndef SHARE_VM_C1_C1_LIRASSEMBLER_HPP 26#define SHARE_VM_C1_C1_LIRASSEMBLER_HPP 27 28#include "c1/c1_CodeStubs.hpp" 29#include "ci/ciMethodData.hpp" 30#include "oops/methodData.hpp" 31#include "utilities/top.hpp" 32 33class Compilation; 34class ScopeValue; 35class BarrierSet; 36 37class LIR_Assembler: public CompilationResourceObj { 38 private: 39 C1_MacroAssembler* _masm; 40 CodeStubList* _slow_case_stubs; 41 BarrierSet* _bs; 42 43 Compilation* _compilation; 44 FrameMap* _frame_map; 45 BlockBegin* _current_block; 46 47 Instruction* _pending_non_safepoint; 48 int _pending_non_safepoint_offset; 49 50 Label _unwind_handler_entry; 51 52#ifdef ASSERT 53 BlockList _branch_target_blocks; 54 void check_no_unbound_labels(); 55#endif 56 57 FrameMap* frame_map() const { return _frame_map; } 58 59 void set_current_block(BlockBegin* b) { _current_block = b; } 60 BlockBegin* current_block() const { return _current_block; } 61 62 // non-safepoint debug info management 63 void flush_debug_info(int before_pc_offset) { 64 if (_pending_non_safepoint != NULL) { 65 if (_pending_non_safepoint_offset < before_pc_offset) 66 record_non_safepoint_debug_info(); 67 _pending_non_safepoint = NULL; 68 } 69 } 70 void process_debug_info(LIR_Op* op); 71 void record_non_safepoint_debug_info(); 72 73 // unified bailout support 74 void bailout(const char* msg) const { compilation()->bailout(msg); } 75 bool bailed_out() const { return compilation()->bailed_out(); } 76 77 // code emission patterns and accessors 78 void check_codespace(); 79 bool needs_icache(ciMethod* method) const; 80 81 // returns offset of icache check 82 int check_icache(); 83 84 void jobject2reg(jobject o, Register reg); 85 void jobject2reg_with_patching(Register reg, CodeEmitInfo* info); 86 87 void metadata2reg(Metadata* o, Register reg); 88 void klass2reg_with_patching(Register reg, CodeEmitInfo* info); 89 90 void emit_stubs(CodeStubList* stub_list); 91 92 // addresses 93 Address as_Address(LIR_Address* addr); 94 Address as_Address_lo(LIR_Address* addr); 95 Address as_Address_hi(LIR_Address* addr); 96 97 // debug information 98 void add_call_info(int pc_offset, CodeEmitInfo* cinfo); 99 void add_debug_info_for_branch(CodeEmitInfo* info); 100 void add_debug_info_for_div0(int pc_offset, CodeEmitInfo* cinfo); 101 void add_debug_info_for_div0_here(CodeEmitInfo* info); 102 void add_debug_info_for_null_check(int pc_offset, CodeEmitInfo* cinfo); 103 void add_debug_info_for_null_check_here(CodeEmitInfo* info); 104 105 void set_24bit_FPU(); 106 void reset_FPU(); 107 void fpop(); 108 void fxch(int i); 109 void fld(int i); 110 void ffree(int i); 111 112 void breakpoint(); 113 void push(LIR_Opr opr); 114 void pop(LIR_Opr opr); 115 116 // patching 117 void append_patching_stub(PatchingStub* stub); 118 void patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info); 119 120 void comp_op(LIR_Condition condition, LIR_Opr src, LIR_Opr result, LIR_Op2* op); 121 122 public: 123 LIR_Assembler(Compilation* c); 124 ~LIR_Assembler(); 125 C1_MacroAssembler* masm() const { return _masm; } 126 Compilation* compilation() const { return _compilation; } 127 ciMethod* method() const { return compilation()->method(); } 128 129 CodeOffsets* offsets() const { return _compilation->offsets(); } 130 int code_offset() const; 131 address pc() const; 132 133 int initial_frame_size_in_bytes(); 134 135 // test for constants which can be encoded directly in instructions 136 static bool is_small_constant(LIR_Opr opr); 137 138 static LIR_Opr receiverOpr(); 139 static LIR_Opr osrBufferPointer(); 140 141 // stubs 142 void emit_slow_case_stubs(); 143 void emit_static_call_stub(); 144 void emit_code_stub(CodeStub* op); 145 void add_call_info_here(CodeEmitInfo* info) { add_call_info(code_offset(), info); } 146 147 // code patterns 148 int emit_exception_handler(); 149 int emit_unwind_handler(); 150 void emit_exception_entries(ExceptionInfoList* info_list); 151 int emit_deopt_handler(); 152 153 void emit_code(BlockList* hir); 154 void emit_block(BlockBegin* block); 155 void emit_lir_list(LIR_List* list); 156 157 // any last minute peephole optimizations are performed here. In 158 // particular sparc uses this for delay slot filling. 159 void peephole(LIR_List* list); 160 161 void emit_string_compare(LIR_Opr left, LIR_Opr right, LIR_Opr dst, CodeEmitInfo* info); 162 163 void return_op(LIR_Opr result); 164 165 // returns offset of poll instruction 166 int safepoint_poll(LIR_Opr result, CodeEmitInfo* info); 167 168 void const2reg (LIR_Opr src, LIR_Opr dest, LIR_PatchCode patch_code, CodeEmitInfo* info); 169 void const2stack(LIR_Opr src, LIR_Opr dest); 170 void const2mem (LIR_Opr src, LIR_Opr dest, BasicType type, CodeEmitInfo* info, bool wide); 171 void reg2stack (LIR_Opr src, LIR_Opr dest, BasicType type, bool pop_fpu_stack); 172 void reg2reg (LIR_Opr src, LIR_Opr dest); 173 void reg2mem (LIR_Opr src, LIR_Opr dest, BasicType type, 174 LIR_PatchCode patch_code, CodeEmitInfo* info, 175 bool pop_fpu_stack, bool wide, bool unaligned); 176 void stack2reg (LIR_Opr src, LIR_Opr dest, BasicType type); 177 void stack2stack(LIR_Opr src, LIR_Opr dest, BasicType type); 178 void mem2reg (LIR_Opr src, LIR_Opr dest, BasicType type, 179 LIR_PatchCode patch_code, 180 CodeEmitInfo* info, bool wide, bool unaligned); 181 182 void prefetchr (LIR_Opr src); 183 void prefetchw (LIR_Opr src); 184 185 void shift_op(LIR_Code code, LIR_Opr left, LIR_Opr count, LIR_Opr dest, LIR_Opr tmp); 186 void shift_op(LIR_Code code, LIR_Opr left, jint count, LIR_Opr dest); 187 188 void move_regs(Register from_reg, Register to_reg); 189 void swap_reg(Register a, Register b); 190 191 void emit_op0(LIR_Op0* op); 192 void emit_op1(LIR_Op1* op); 193 void emit_op2(LIR_Op2* op); 194 void emit_op3(LIR_Op3* op); 195 void emit_opBranch(LIR_OpBranch* op); 196 void emit_opLabel(LIR_OpLabel* op); 197 void emit_arraycopy(LIR_OpArrayCopy* op); 198 void emit_opConvert(LIR_OpConvert* op); 199 void emit_alloc_obj(LIR_OpAllocObj* op); 200 void emit_alloc_array(LIR_OpAllocArray* op); 201 void emit_opTypeCheck(LIR_OpTypeCheck* op); 202 void emit_typecheck_helper(LIR_OpTypeCheck *op, Label* success, Label* failure, Label* obj_is_null); 203 void emit_compare_and_swap(LIR_OpCompareAndSwap* op); 204 void emit_lock(LIR_OpLock* op); 205 void emit_call(LIR_OpJavaCall* op); 206 void emit_rtcall(LIR_OpRTCall* op); 207 void emit_profile_call(LIR_OpProfileCall* op); 208 void emit_delay(LIR_OpDelay* op); 209 210 void arith_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest, CodeEmitInfo* info, bool pop_fpu_stack); 211 void arithmetic_idiv(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr temp, LIR_Opr result, CodeEmitInfo* info); 212 void intrinsic_op(LIR_Code code, LIR_Opr value, LIR_Opr unused, LIR_Opr dest, LIR_Op* op); 213 214 void logic_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest); 215 216 void roundfp_op(LIR_Opr src, LIR_Opr tmp, LIR_Opr dest, bool pop_fpu_stack); 217 void move_op(LIR_Opr src, LIR_Opr result, BasicType type, 218 LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, bool unaligned, bool wide); 219 void volatile_move_op(LIR_Opr src, LIR_Opr result, BasicType type, CodeEmitInfo* info); 220 void comp_mem_op(LIR_Opr src, LIR_Opr result, BasicType type, CodeEmitInfo* info); // info set for null exceptions 221 void comp_fl2i(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr result, LIR_Op2* op); 222 void cmove(LIR_Condition code, LIR_Opr left, LIR_Opr right, LIR_Opr result, BasicType type); 223 224 void call( LIR_OpJavaCall* op, relocInfo::relocType rtype); 225 void ic_call( LIR_OpJavaCall* op); 226 void vtable_call( LIR_OpJavaCall* op); 227 228 void osr_entry(); 229 230 void build_frame(); 231 232 void throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info); 233 void unwind_op(LIR_Opr exceptionOop); 234 void monitor_address(int monitor_ix, LIR_Opr dst); 235 236 void align_backward_branch_target(); 237 void align_call(LIR_Code code); 238 239 void negate(LIR_Opr left, LIR_Opr dest); 240 void leal(LIR_Opr left, LIR_Opr dest); 241 242 void rt_call(LIR_Opr result, address dest, const LIR_OprList* args, LIR_Opr tmp, CodeEmitInfo* info); 243 244 void membar(); 245 void membar_acquire(); 246 void membar_release(); 247 void membar_loadload(); 248 void membar_storestore(); 249 void membar_loadstore(); 250 void membar_storeload(); 251 void get_thread(LIR_Opr result); 252 253 void verify_oop_map(CodeEmitInfo* info); 254 255#ifdef TARGET_ARCH_x86 256# include "c1_LIRAssembler_x86.hpp" 257#endif 258#ifdef TARGET_ARCH_sparc 259# include "c1_LIRAssembler_sparc.hpp" 260#endif 261#ifdef TARGET_ARCH_arm 262# include "c1_LIRAssembler_arm.hpp" 263#endif 264#ifdef TARGET_ARCH_ppc 265# include "c1_LIRAssembler_ppc.hpp" 266#endif 267 268}; 269 270#endif // SHARE_VM_C1_C1_LIRASSEMBLER_HPP 271