/* * Copyright (c) 2000, 2010, 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. * */ #ifndef SHARE_VM_C1_C1_LIRASSEMBLER_HPP #define SHARE_VM_C1_C1_LIRASSEMBLER_HPP #include "c1/c1_CodeStubs.hpp" #include "ci/ciMethodData.hpp" #include "oops/methodDataOop.hpp" #include "utilities/top.hpp" class Compilation; class ScopeValue; class BarrierSet; class LIR_Assembler: public CompilationResourceObj { private: C1_MacroAssembler* _masm; CodeStubList* _slow_case_stubs; BarrierSet* _bs; Compilation* _compilation; FrameMap* _frame_map; BlockBegin* _current_block; Instruction* _pending_non_safepoint; int _pending_non_safepoint_offset; Label _unwind_handler_entry; #ifdef ASSERT BlockList _branch_target_blocks; void check_no_unbound_labels(); #endif FrameMap* frame_map() const { return _frame_map; } void set_current_block(BlockBegin* b) { _current_block = b; } BlockBegin* current_block() const { return _current_block; } // non-safepoint debug info management void flush_debug_info(int before_pc_offset) { if (_pending_non_safepoint != NULL) { if (_pending_non_safepoint_offset < before_pc_offset) record_non_safepoint_debug_info(); _pending_non_safepoint = NULL; } } void process_debug_info(LIR_Op* op); void record_non_safepoint_debug_info(); // unified bailout support void bailout(const char* msg) const { compilation()->bailout(msg); } bool bailed_out() const { return compilation()->bailed_out(); } // code emission patterns and accessors void check_codespace(); bool needs_icache(ciMethod* method) const; // returns offset of icache check int check_icache(); void jobject2reg(jobject o, Register reg); void jobject2reg_with_patching(Register reg, CodeEmitInfo* info); void emit_stubs(CodeStubList* stub_list); // addresses Address as_Address(LIR_Address* addr); Address as_Address_lo(LIR_Address* addr); Address as_Address_hi(LIR_Address* addr); // debug information void add_call_info(int pc_offset, CodeEmitInfo* cinfo); void add_debug_info_for_branch(CodeEmitInfo* info); void add_debug_info_for_div0(int pc_offset, CodeEmitInfo* cinfo); void add_debug_info_for_div0_here(CodeEmitInfo* info); void add_debug_info_for_null_check(int pc_offset, CodeEmitInfo* cinfo); void add_debug_info_for_null_check_here(CodeEmitInfo* info); void set_24bit_FPU(); void reset_FPU(); void fpop(); void fxch(int i); void fld(int i); void ffree(int i); void breakpoint(); void push(LIR_Opr opr); void pop(LIR_Opr opr); // patching void append_patching_stub(PatchingStub* stub); void patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info); void comp_op(LIR_Condition condition, LIR_Opr src, LIR_Opr result, LIR_Op2* op); public: LIR_Assembler(Compilation* c); ~LIR_Assembler(); C1_MacroAssembler* masm() const { return _masm; } Compilation* compilation() const { return _compilation; } ciMethod* method() const { return compilation()->method(); } CodeOffsets* offsets() const { return _compilation->offsets(); } int code_offset() const; address pc() const; int initial_frame_size_in_bytes(); // test for constants which can be encoded directly in instructions static bool is_small_constant(LIR_Opr opr); static LIR_Opr receiverOpr(); static LIR_Opr incomingReceiverOpr(); static LIR_Opr osrBufferPointer(); // stubs void emit_slow_case_stubs(); void emit_static_call_stub(); void emit_code_stub(CodeStub* op); void add_call_info_here(CodeEmitInfo* info) { add_call_info(code_offset(), info); } // code patterns int emit_exception_handler(); int emit_unwind_handler(); void emit_exception_entries(ExceptionInfoList* info_list); int emit_deopt_handler(); void emit_code(BlockList* hir); void emit_block(BlockBegin* block); void emit_lir_list(LIR_List* list); // any last minute peephole optimizations are performed here. In // particular sparc uses this for delay slot filling. void peephole(LIR_List* list); void emit_string_compare(LIR_Opr left, LIR_Opr right, LIR_Opr dst, CodeEmitInfo* info); void return_op(LIR_Opr result); // returns offset of poll instruction int safepoint_poll(LIR_Opr result, CodeEmitInfo* info); void const2reg (LIR_Opr src, LIR_Opr dest, LIR_PatchCode patch_code, CodeEmitInfo* info); void const2stack(LIR_Opr src, LIR_Opr dest); void const2mem (LIR_Opr src, LIR_Opr dest, BasicType type, CodeEmitInfo* info, bool wide); void reg2stack (LIR_Opr src, LIR_Opr dest, BasicType type, bool pop_fpu_stack); void reg2reg (LIR_Opr src, LIR_Opr dest); void reg2mem (LIR_Opr src, LIR_Opr dest, BasicType type, LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, bool wide, bool unaligned); void stack2reg (LIR_Opr src, LIR_Opr dest, BasicType type); void stack2stack(LIR_Opr src, LIR_Opr dest, BasicType type); void mem2reg (LIR_Opr src, LIR_Opr dest, BasicType type, LIR_PatchCode patch_code, CodeEmitInfo* info, bool wide, bool unaligned); void prefetchr (LIR_Opr src); void prefetchw (LIR_Opr src); void shift_op(LIR_Code code, LIR_Opr left, LIR_Opr count, LIR_Opr dest, LIR_Opr tmp); void shift_op(LIR_Code code, LIR_Opr left, jint count, LIR_Opr dest); void move_regs(Register from_reg, Register to_reg); void swap_reg(Register a, Register b); void emit_op0(LIR_Op0* op); void emit_op1(LIR_Op1* op); void emit_op2(LIR_Op2* op); void emit_op3(LIR_Op3* op); void emit_opBranch(LIR_OpBranch* op); void emit_opLabel(LIR_OpLabel* op); void emit_arraycopy(LIR_OpArrayCopy* op); void emit_opConvert(LIR_OpConvert* op); void emit_alloc_obj(LIR_OpAllocObj* op); void emit_alloc_array(LIR_OpAllocArray* op); void emit_opTypeCheck(LIR_OpTypeCheck* op); void emit_typecheck_helper(LIR_OpTypeCheck *op, Label* success, Label* failure, Label* obj_is_null); void emit_compare_and_swap(LIR_OpCompareAndSwap* op); void emit_lock(LIR_OpLock* op); void emit_call(LIR_OpJavaCall* op); void emit_rtcall(LIR_OpRTCall* op); void emit_profile_call(LIR_OpProfileCall* op); void emit_delay(LIR_OpDelay* op); void arith_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest, CodeEmitInfo* info, bool pop_fpu_stack); void arithmetic_idiv(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr temp, LIR_Opr result, CodeEmitInfo* info); void intrinsic_op(LIR_Code code, LIR_Opr value, LIR_Opr unused, LIR_Opr dest, LIR_Op* op); void logic_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest); void roundfp_op(LIR_Opr src, LIR_Opr tmp, LIR_Opr dest, bool pop_fpu_stack); void move_op(LIR_Opr src, LIR_Opr result, BasicType type, LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, bool unaligned, bool wide); void volatile_move_op(LIR_Opr src, LIR_Opr result, BasicType type, CodeEmitInfo* info); void comp_mem_op(LIR_Opr src, LIR_Opr result, BasicType type, CodeEmitInfo* info); // info set for null exceptions void comp_fl2i(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr result, LIR_Op2* op); void cmove(LIR_Condition code, LIR_Opr left, LIR_Opr right, LIR_Opr result); void call( LIR_OpJavaCall* op, relocInfo::relocType rtype); void ic_call( LIR_OpJavaCall* op); void vtable_call( LIR_OpJavaCall* op); void osr_entry(); void build_frame(); void throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info); void unwind_op(LIR_Opr exceptionOop); void monitor_address(int monitor_ix, LIR_Opr dst); void align_backward_branch_target(); void align_call(LIR_Code code); void negate(LIR_Opr left, LIR_Opr dest); void leal(LIR_Opr left, LIR_Opr dest); void rt_call(LIR_Opr result, address dest, const LIR_OprList* args, LIR_Opr tmp, CodeEmitInfo* info); void membar(); void membar_acquire(); void membar_release(); void get_thread(LIR_Opr result); void verify_oop_map(CodeEmitInfo* info); #ifdef TARGET_ARCH_x86 # include "c1_LIRAssembler_x86.hpp" #endif #ifdef TARGET_ARCH_sparc # include "c1_LIRAssembler_sparc.hpp" #endif }; #endif // SHARE_VM_C1_C1_LIRASSEMBLER_HPP