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src/hotspot/share/c1/c1_LIRAssembler.hpp

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  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_C1_C1_LIRASSEMBLER_HPP
  26 #define SHARE_C1_C1_LIRASSEMBLER_HPP
  27 
  28 #include "c1/c1_CodeStubs.hpp"
  29 #include "ci/ciMethodData.hpp"
  30 #include "oops/methodData.hpp"
  31 #include "utilities/macros.hpp"
  32 
  33 class Compilation;

  34 class ScopeValue;
  35 class BarrierSet;
  36 
  37 class 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);


  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   bool needs_clinit_barrier_on_entry(ciMethod* method) const;
  85   void clinit_barrier(ciMethod* method);
  86 
  87   void jobject2reg(jobject o, Register reg);
  88   void jobject2reg_with_patching(Register reg, CodeEmitInfo* info);
  89 
  90   void metadata2reg(Metadata* o, Register reg);
  91   void klass2reg_with_patching(Register reg, CodeEmitInfo* info);
  92 
  93   void emit_stubs(CodeStubList* stub_list);
  94 




  95   // addresses
  96   Address as_Address(LIR_Address* addr);
  97   Address as_Address_lo(LIR_Address* addr);
  98   Address as_Address_hi(LIR_Address* addr);
  99 
 100   // debug information
 101   void add_call_info(int pc_offset, CodeEmitInfo* cinfo);
 102   void add_debug_info_for_branch(CodeEmitInfo* info);
 103   void add_debug_info_for_div0(int pc_offset, CodeEmitInfo* cinfo);
 104   void add_debug_info_for_div0_here(CodeEmitInfo* info);
 105   ImplicitNullCheckStub* add_debug_info_for_null_check(int pc_offset, CodeEmitInfo* cinfo);
 106   ImplicitNullCheckStub* add_debug_info_for_null_check_here(CodeEmitInfo* info);
 107 
 108   void set_24bit_FPU();
 109   void reset_FPU();
 110   void fpop();
 111   void fxch(int i);
 112   void fld(int i);
 113   void ffree(int i);
 114 
 115   void breakpoint();
 116   void push(LIR_Opr opr);
 117   void pop(LIR_Opr opr);
 118 
 119   // patching
 120   void append_patching_stub(PatchingStub* stub);
 121   void patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info);


 184                    CodeEmitInfo* info, bool wide, bool unaligned);
 185 
 186   void shift_op(LIR_Code code, LIR_Opr left, LIR_Opr count, LIR_Opr dest, LIR_Opr tmp);
 187   void shift_op(LIR_Code code, LIR_Opr left, jint  count, LIR_Opr dest);
 188 
 189   void move_regs(Register from_reg, Register to_reg);
 190   void swap_reg(Register a, Register b);
 191 
 192   void emit_op0(LIR_Op0* op);
 193   void emit_op1(LIR_Op1* op);
 194   void emit_op2(LIR_Op2* op);
 195   void emit_op3(LIR_Op3* op);
 196   void emit_opBranch(LIR_OpBranch* op);
 197   void emit_opLabel(LIR_OpLabel* op);
 198   void emit_arraycopy(LIR_OpArrayCopy* op);
 199   void emit_updatecrc32(LIR_OpUpdateCRC32* op);
 200   void emit_opConvert(LIR_OpConvert* op);
 201   void emit_alloc_obj(LIR_OpAllocObj* op);
 202   void emit_alloc_array(LIR_OpAllocArray* op);
 203   void emit_opTypeCheck(LIR_OpTypeCheck* op);



 204   void emit_typecheck_helper(LIR_OpTypeCheck *op, Label* success, Label* failure, Label* obj_is_null);
 205   void emit_compare_and_swap(LIR_OpCompareAndSwap* op);
 206   void emit_lock(LIR_OpLock* op);
 207   void emit_call(LIR_OpJavaCall* op);
 208   void emit_rtcall(LIR_OpRTCall* op);
 209   void emit_profile_call(LIR_OpProfileCall* op);
 210   void emit_profile_type(LIR_OpProfileType* op);
 211   void emit_delay(LIR_OpDelay* op);



 212 
 213   void arith_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest, CodeEmitInfo* info, bool pop_fpu_stack);
 214   void arithmetic_idiv(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr temp, LIR_Opr result, CodeEmitInfo* info);
 215   void intrinsic_op(LIR_Code code, LIR_Opr value, LIR_Opr unused, LIR_Opr dest, LIR_Op* op);
 216 #ifdef ASSERT
 217   void emit_assert(LIR_OpAssert* op);
 218 #endif
 219 
 220   void logic_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest);
 221 
 222   void roundfp_op(LIR_Opr src, LIR_Opr tmp, LIR_Opr dest, bool pop_fpu_stack);
 223   void move_op(LIR_Opr src, LIR_Opr result, BasicType type,
 224                LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, bool unaligned, bool wide);
 225   void volatile_move_op(LIR_Opr src, LIR_Opr result, BasicType type, CodeEmitInfo* info);
 226   void comp_mem_op(LIR_Opr src, LIR_Opr result, BasicType type, CodeEmitInfo* info);  // info set for null exceptions
 227   void comp_fl2i(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr result, LIR_Op2* op);
 228   void cmove(LIR_Condition code, LIR_Opr left, LIR_Opr right, LIR_Opr result, BasicType type);
 229 
 230   void call(        LIR_OpJavaCall* op, relocInfo::relocType rtype);
 231   void ic_call(     LIR_OpJavaCall* op);
 232   void vtable_call( LIR_OpJavaCall* op);

 233 
 234   void osr_entry();
 235 
 236   void build_frame();
 237 
 238   void throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info);
 239   void unwind_op(LIR_Opr exceptionOop);
 240   void monitor_address(int monitor_ix, LIR_Opr dst);
 241 
 242   void align_backward_branch_target();
 243   void align_call(LIR_Code code);
 244 
 245   void negate(LIR_Opr left, LIR_Opr dest, LIR_Opr tmp = LIR_OprFact::illegalOpr);
 246   void leal(LIR_Opr src, LIR_Opr dest, LIR_PatchCode patch_code = lir_patch_none, CodeEmitInfo* info = NULL);
 247 
 248   void rt_call(LIR_Opr result, address dest, const LIR_OprList* args, LIR_Opr tmp, CodeEmitInfo* info);
 249 
 250   void membar();
 251   void membar_acquire();
 252   void membar_release();




  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_C1_C1_LIRASSEMBLER_HPP
  26 #define SHARE_C1_C1_LIRASSEMBLER_HPP
  27 
  28 #include "c1/c1_CodeStubs.hpp"
  29 #include "ci/ciMethodData.hpp"
  30 #include "oops/methodData.hpp"
  31 #include "utilities/macros.hpp"
  32 
  33 class Compilation;
  34 class CompiledEntrySignature;
  35 class ScopeValue;
  36 class BarrierSet;
  37 
  38 class LIR_Assembler: public CompilationResourceObj {
  39  private:
  40   C1_MacroAssembler* _masm;
  41   CodeStubList*      _slow_case_stubs;
  42   BarrierSet*        _bs;
  43 
  44   Compilation*       _compilation;
  45   FrameMap*          _frame_map;
  46   BlockBegin*        _current_block;
  47 
  48   Instruction*       _pending_non_safepoint;
  49   int                _pending_non_safepoint_offset;
  50 
  51   Label              _unwind_handler_entry;
  52   Label              _verified_value_entry;
  53 
  54 #ifdef ASSERT
  55   BlockList          _branch_target_blocks;
  56   void check_no_unbound_labels();
  57 #endif
  58 
  59   FrameMap* frame_map() const { return _frame_map; }
  60 
  61   void set_current_block(BlockBegin* b) { _current_block = b; }
  62   BlockBegin* current_block() const { return _current_block; }
  63 
  64   // non-safepoint debug info management
  65   void flush_debug_info(int before_pc_offset) {
  66     if (_pending_non_safepoint != NULL) {
  67       if (_pending_non_safepoint_offset < before_pc_offset)
  68         record_non_safepoint_debug_info();
  69       _pending_non_safepoint = NULL;
  70     }
  71   }
  72   void process_debug_info(LIR_Op* op);


  77   bool bailed_out() const                        { return compilation()->bailed_out(); }
  78 
  79   // code emission patterns and accessors
  80   void check_codespace();
  81   bool needs_icache(ciMethod* method) const;
  82 
  83   // returns offset of icache check
  84   int check_icache();
  85 
  86   bool needs_clinit_barrier_on_entry(ciMethod* method) const;
  87   void clinit_barrier(ciMethod* method);
  88 
  89   void jobject2reg(jobject o, Register reg);
  90   void jobject2reg_with_patching(Register reg, CodeEmitInfo* info);
  91 
  92   void metadata2reg(Metadata* o, Register reg);
  93   void klass2reg_with_patching(Register reg, CodeEmitInfo* info);
  94 
  95   void emit_stubs(CodeStubList* stub_list);
  96 
  97   bool needs_stack_repair() const {
  98     return compilation()->needs_stack_repair();
  99   }
 100 
 101   // addresses
 102   Address as_Address(LIR_Address* addr);
 103   Address as_Address_lo(LIR_Address* addr);
 104   Address as_Address_hi(LIR_Address* addr);
 105 
 106   // debug information
 107   void add_call_info(int pc_offset, CodeEmitInfo* cinfo, bool maybe_return_as_fields = false);
 108   void add_debug_info_for_branch(CodeEmitInfo* info);
 109   void add_debug_info_for_div0(int pc_offset, CodeEmitInfo* cinfo);
 110   void add_debug_info_for_div0_here(CodeEmitInfo* info);
 111   ImplicitNullCheckStub* add_debug_info_for_null_check(int pc_offset, CodeEmitInfo* cinfo);
 112   ImplicitNullCheckStub* add_debug_info_for_null_check_here(CodeEmitInfo* info);
 113 
 114   void set_24bit_FPU();
 115   void reset_FPU();
 116   void fpop();
 117   void fxch(int i);
 118   void fld(int i);
 119   void ffree(int i);
 120 
 121   void breakpoint();
 122   void push(LIR_Opr opr);
 123   void pop(LIR_Opr opr);
 124 
 125   // patching
 126   void append_patching_stub(PatchingStub* stub);
 127   void patching_epilog(PatchingStub* patch, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info);


 190                    CodeEmitInfo* info, bool wide, bool unaligned);
 191 
 192   void shift_op(LIR_Code code, LIR_Opr left, LIR_Opr count, LIR_Opr dest, LIR_Opr tmp);
 193   void shift_op(LIR_Code code, LIR_Opr left, jint  count, LIR_Opr dest);
 194 
 195   void move_regs(Register from_reg, Register to_reg);
 196   void swap_reg(Register a, Register b);
 197 
 198   void emit_op0(LIR_Op0* op);
 199   void emit_op1(LIR_Op1* op);
 200   void emit_op2(LIR_Op2* op);
 201   void emit_op3(LIR_Op3* op);
 202   void emit_opBranch(LIR_OpBranch* op);
 203   void emit_opLabel(LIR_OpLabel* op);
 204   void emit_arraycopy(LIR_OpArrayCopy* op);
 205   void emit_updatecrc32(LIR_OpUpdateCRC32* op);
 206   void emit_opConvert(LIR_OpConvert* op);
 207   void emit_alloc_obj(LIR_OpAllocObj* op);
 208   void emit_alloc_array(LIR_OpAllocArray* op);
 209   void emit_opTypeCheck(LIR_OpTypeCheck* op);
 210   void emit_opFlattenedArrayCheck(LIR_OpFlattenedArrayCheck* op);
 211   void emit_opNullFreeArrayCheck(LIR_OpNullFreeArrayCheck* op);
 212   void emit_opSubstitutabilityCheck(LIR_OpSubstitutabilityCheck* op);
 213   void emit_typecheck_helper(LIR_OpTypeCheck *op, Label* success, Label* failure, Label* obj_is_null);
 214   void emit_compare_and_swap(LIR_OpCompareAndSwap* op);
 215   void emit_lock(LIR_OpLock* op);
 216   void emit_call(LIR_OpJavaCall* op);
 217   void emit_rtcall(LIR_OpRTCall* op);
 218   void emit_profile_call(LIR_OpProfileCall* op);
 219   void emit_profile_type(LIR_OpProfileType* op);
 220   void emit_delay(LIR_OpDelay* op);
 221   void emit_std_entries();
 222   int  emit_std_entry(CodeOffsets::Entries entry, const CompiledEntrySignature* ces);
 223   void add_scalarized_entry_info(int call_offset);
 224 
 225   void arith_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest, CodeEmitInfo* info, bool pop_fpu_stack);
 226   void arithmetic_idiv(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr temp, LIR_Opr result, CodeEmitInfo* info);
 227   void intrinsic_op(LIR_Code code, LIR_Opr value, LIR_Opr unused, LIR_Opr dest, LIR_Op* op);
 228 #ifdef ASSERT
 229   void emit_assert(LIR_OpAssert* op);
 230 #endif
 231 
 232   void logic_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest);
 233 
 234   void roundfp_op(LIR_Opr src, LIR_Opr tmp, LIR_Opr dest, bool pop_fpu_stack);
 235   void move_op(LIR_Opr src, LIR_Opr result, BasicType type,
 236                LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, bool unaligned, bool wide);
 237   void volatile_move_op(LIR_Opr src, LIR_Opr result, BasicType type, CodeEmitInfo* info);
 238   void comp_mem_op(LIR_Opr src, LIR_Opr result, BasicType type, CodeEmitInfo* info);  // info set for null exceptions
 239   void comp_fl2i(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr result, LIR_Op2* op);
 240   void cmove(LIR_Condition code, LIR_Opr left, LIR_Opr right, LIR_Opr result, BasicType type);
 241 
 242   void call(        LIR_OpJavaCall* op, relocInfo::relocType rtype);
 243   void ic_call(     LIR_OpJavaCall* op);
 244   void vtable_call( LIR_OpJavaCall* op);
 245   int  store_value_type_fields_to_buf(ciValueKlass* vk);
 246 
 247   void osr_entry();
 248 
 249   void build_frame();
 250 
 251   void throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info);
 252   void unwind_op(LIR_Opr exceptionOop);
 253   void monitor_address(int monitor_ix, LIR_Opr dst);
 254 
 255   void align_backward_branch_target();
 256   void align_call(LIR_Code code);
 257 
 258   void negate(LIR_Opr left, LIR_Opr dest, LIR_Opr tmp = LIR_OprFact::illegalOpr);
 259   void leal(LIR_Opr src, LIR_Opr dest, LIR_PatchCode patch_code = lir_patch_none, CodeEmitInfo* info = NULL);
 260 
 261   void rt_call(LIR_Opr result, address dest, const LIR_OprList* args, LIR_Opr tmp, CodeEmitInfo* info);
 262 
 263   void membar();
 264   void membar_acquire();
 265   void membar_release();


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