254 // Push a projection node onto the projection list
255 void push_projection(Node* node) {
256 _projection_list.push(node);
257 }
258
259 Node* pop_projection() {
260 return _projection_list.pop();
261 }
262
263 // Number of nodes in the projection list
264 uint number_of_projections() const {
265 return _projection_list.size();
266 }
267
268 // Select instructions for entire method
269 void match();
270
271 // Helper for match
272 OptoReg::Name warp_incoming_stk_arg( VMReg reg );
273
274 // Transform, then walk. Does implicit DCE while walking.
275 // Name changed from "transform" to avoid it being virtual.
276 Node *xform( Node *old_space_node, int Nodes );
277
278 // Match a single Ideal Node - turn it into a 1-Node tree; Label & Reduce.
279 MachNode *match_tree( const Node *n );
280 MachNode *match_sfpt( SafePointNode *sfpt );
281 // Helper for match_sfpt
282 OptoReg::Name warp_outgoing_stk_arg( VMReg reg, OptoReg::Name begin_out_arg_area, OptoReg::Name &out_arg_limit_per_call );
283
284 // Initialize first stack mask and related masks.
285 void init_first_stack_mask();
286
287 // If we should save-on-entry this register
288 bool is_save_on_entry( int reg );
289
290 // Fixup the save-on-entry registers
291 void Fixup_Save_On_Entry( );
292
293 // --- Frame handling ---
372
373 // Alignment of stack in bytes, standard Intel word alignment is 4.
374 // Sparc probably wants at least double-word (8).
375 static uint stack_alignment_in_bytes();
376 // Alignment of stack, measured in stack slots.
377 // The size of stack slots is defined by VMRegImpl::stack_slot_size.
378 static uint stack_alignment_in_slots() {
379 return stack_alignment_in_bytes() / (VMRegImpl::stack_slot_size);
380 }
381
382 // Convert a sig into a calling convention register layout
383 // and find interesting things about it.
384 static OptoReg::Name find_receiver();
385 // Return address register. On Intel it is a stack-slot. On PowerPC
386 // it is the Link register. On Sparc it is r31?
387 virtual OptoReg::Name return_addr() const;
388 RegMask _return_addr_mask;
389 // Return value register. On Intel it is EAX.
390 static OptoRegPair return_value(uint ideal_reg);
391 static OptoRegPair c_return_value(uint ideal_reg);
392 RegMask _return_value_mask;
393 // Inline Cache Register
394 static OptoReg::Name inline_cache_reg();
395 static int inline_cache_reg_encode();
396
397 // Register for DIVI projection of divmodI
398 static RegMask divI_proj_mask();
399 // Register for MODI projection of divmodI
400 static RegMask modI_proj_mask();
401
402 // Register for DIVL projection of divmodL
403 static RegMask divL_proj_mask();
404 // Register for MODL projection of divmodL
405 static RegMask modL_proj_mask();
406
407 // Use hardware DIV instruction when it is faster than
408 // a code which use multiply for division by constant.
409 static bool use_asm_for_ldiv_by_con( jlong divisor );
410
411 static const RegMask method_handle_invoke_SP_save_mask();
412
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254 // Push a projection node onto the projection list
255 void push_projection(Node* node) {
256 _projection_list.push(node);
257 }
258
259 Node* pop_projection() {
260 return _projection_list.pop();
261 }
262
263 // Number of nodes in the projection list
264 uint number_of_projections() const {
265 return _projection_list.size();
266 }
267
268 // Select instructions for entire method
269 void match();
270
271 // Helper for match
272 OptoReg::Name warp_incoming_stk_arg( VMReg reg );
273
274 RegMask* return_values_mask(const TypeFunc* tf);
275
276 // Transform, then walk. Does implicit DCE while walking.
277 // Name changed from "transform" to avoid it being virtual.
278 Node *xform( Node *old_space_node, int Nodes );
279
280 // Match a single Ideal Node - turn it into a 1-Node tree; Label & Reduce.
281 MachNode *match_tree( const Node *n );
282 MachNode *match_sfpt( SafePointNode *sfpt );
283 // Helper for match_sfpt
284 OptoReg::Name warp_outgoing_stk_arg( VMReg reg, OptoReg::Name begin_out_arg_area, OptoReg::Name &out_arg_limit_per_call );
285
286 // Initialize first stack mask and related masks.
287 void init_first_stack_mask();
288
289 // If we should save-on-entry this register
290 bool is_save_on_entry( int reg );
291
292 // Fixup the save-on-entry registers
293 void Fixup_Save_On_Entry( );
294
295 // --- Frame handling ---
374
375 // Alignment of stack in bytes, standard Intel word alignment is 4.
376 // Sparc probably wants at least double-word (8).
377 static uint stack_alignment_in_bytes();
378 // Alignment of stack, measured in stack slots.
379 // The size of stack slots is defined by VMRegImpl::stack_slot_size.
380 static uint stack_alignment_in_slots() {
381 return stack_alignment_in_bytes() / (VMRegImpl::stack_slot_size);
382 }
383
384 // Convert a sig into a calling convention register layout
385 // and find interesting things about it.
386 static OptoReg::Name find_receiver();
387 // Return address register. On Intel it is a stack-slot. On PowerPC
388 // it is the Link register. On Sparc it is r31?
389 virtual OptoReg::Name return_addr() const;
390 RegMask _return_addr_mask;
391 // Return value register. On Intel it is EAX.
392 static OptoRegPair return_value(uint ideal_reg);
393 static OptoRegPair c_return_value(uint ideal_reg);
394 RegMask* _return_values_mask;
395 // Inline Cache Register
396 static OptoReg::Name inline_cache_reg();
397 static int inline_cache_reg_encode();
398
399 // Register for DIVI projection of divmodI
400 static RegMask divI_proj_mask();
401 // Register for MODI projection of divmodI
402 static RegMask modI_proj_mask();
403
404 // Register for DIVL projection of divmodL
405 static RegMask divL_proj_mask();
406 // Register for MODL projection of divmodL
407 static RegMask modL_proj_mask();
408
409 // Use hardware DIV instruction when it is faster than
410 // a code which use multiply for division by constant.
411 static bool use_asm_for_ldiv_by_con( jlong divisor );
412
413 static const RegMask method_handle_invoke_SP_save_mask();
414
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