565 verify(&live_arena, true);
566 #endif
567 cache_lrg_info(); // Count degree of LRGs
568
569 // Simplify the InterFerence Graph by removing LRGs of low degree.
570 // LRGs of low degree are trivially colorable.
571 Simplify();
572
573 // Select colors by re-inserting LRGs back into the IFG in reverse order.
574 // Return whether or not something spills.
575 spills = Select();
576 }
577
578 // Count number of Simplify-Select trips per coloring success.
579 _allocator_attempts += _trip_cnt + 1;
580 _allocator_successes += 1;
581
582 // Peephole remove copies
583 post_allocate_copy_removal();
584
585 #ifdef ASSERT
586 // Veify the graph after RA.
587 verify(&live_arena);
588 #endif
589
590 // max_reg is past the largest *register* used.
591 // Convert that to a frame_slot number.
592 if (_max_reg <= _matcher._new_SP) {
593 _framesize = C->out_preserve_stack_slots();
594 }
595 else {
596 _framesize = _max_reg -_matcher._new_SP;
597 }
598 assert((int)(_matcher._new_SP+_framesize) >= (int)_matcher._out_arg_limit, "framesize must be large enough");
599
600 // This frame must preserve the required fp alignment
601 _framesize = round_to(_framesize, Matcher::stack_alignment_in_slots());
602 assert( _framesize >= 0 && _framesize <= 1000000, "sanity check" );
603 #ifndef PRODUCT
604 _total_framesize += _framesize;
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565 verify(&live_arena, true);
566 #endif
567 cache_lrg_info(); // Count degree of LRGs
568
569 // Simplify the InterFerence Graph by removing LRGs of low degree.
570 // LRGs of low degree are trivially colorable.
571 Simplify();
572
573 // Select colors by re-inserting LRGs back into the IFG in reverse order.
574 // Return whether or not something spills.
575 spills = Select();
576 }
577
578 // Count number of Simplify-Select trips per coloring success.
579 _allocator_attempts += _trip_cnt + 1;
580 _allocator_successes += 1;
581
582 // Peephole remove copies
583 post_allocate_copy_removal();
584
585 // Merge multidefs if multiple defs representing the same value are used in a single block.
586 merge_multidefs();
587
588 #ifdef ASSERT
589 // Veify the graph after RA.
590 verify(&live_arena);
591 #endif
592
593 // max_reg is past the largest *register* used.
594 // Convert that to a frame_slot number.
595 if (_max_reg <= _matcher._new_SP) {
596 _framesize = C->out_preserve_stack_slots();
597 }
598 else {
599 _framesize = _max_reg -_matcher._new_SP;
600 }
601 assert((int)(_matcher._new_SP+_framesize) >= (int)_matcher._out_arg_limit, "framesize must be large enough");
602
603 // This frame must preserve the required fp alignment
604 _framesize = round_to(_framesize, Matcher::stack_alignment_in_slots());
605 assert( _framesize >= 0 && _framesize <= 1000000, "sanity check" );
606 #ifndef PRODUCT
607 _total_framesize += _framesize;
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