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src/hotspot/share/c1/c1_LinearScan.cpp

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  44   static LinearScanTimers _total_timer;
  45 
  46   // helper macro for short definition of timer
  47   #define TIME_LINEAR_SCAN(timer_name)  TraceTime _block_timer("", _total_timer.timer(LinearScanTimers::timer_name), TimeLinearScan || TimeEachLinearScan, Verbose);
  48 
  49   // helper macro for short definition of trace-output inside code
  50   #define TRACE_LINEAR_SCAN(level, code)       \
  51     if (TraceLinearScanLevel >= level) {       \
  52       code;                                    \
  53     }
  54 
  55 #else
  56 
  57   #define TIME_LINEAR_SCAN(timer_name)
  58   #define TRACE_LINEAR_SCAN(level, code)
  59 
  60 #endif
  61 
  62 // Map BasicType to spill size in 32-bit words, matching VMReg's notion of words
  63 #ifdef _LP64
  64 static int type2spill_size[T_CONFLICT+1]={ -1, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 0, 2,  1, 2, 1, -1};
  65 #else
  66 static int type2spill_size[T_CONFLICT+1]={ -1, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 0, 1, -1, 1, 1, -1};
  67 #endif
  68 
  69 
  70 // Implementation of LinearScan
  71 
  72 LinearScan::LinearScan(IR* ir, LIRGenerator* gen, FrameMap* frame_map)
  73  : _compilation(ir->compilation())
  74  , _ir(ir)
  75  , _gen(gen)
  76  , _frame_map(frame_map)
  77  , _cached_blocks(*ir->linear_scan_order())
  78  , _num_virtual_regs(gen->max_virtual_register_number())
  79  , _has_fpu_registers(false)
  80  , _num_calls(-1)
  81  , _max_spills(0)
  82  , _unused_spill_slot(-1)
  83  , _intervals(0)   // initialized later with correct length
  84  , _new_intervals_from_allocation(NULL)
  85  , _sorted_intervals(NULL)
  86  , _needs_full_resort(false)




  44   static LinearScanTimers _total_timer;
  45 
  46   // helper macro for short definition of timer
  47   #define TIME_LINEAR_SCAN(timer_name)  TraceTime _block_timer("", _total_timer.timer(LinearScanTimers::timer_name), TimeLinearScan || TimeEachLinearScan, Verbose);
  48 
  49   // helper macro for short definition of trace-output inside code
  50   #define TRACE_LINEAR_SCAN(level, code)       \
  51     if (TraceLinearScanLevel >= level) {       \
  52       code;                                    \
  53     }
  54 
  55 #else
  56 
  57   #define TIME_LINEAR_SCAN(timer_name)
  58   #define TRACE_LINEAR_SCAN(level, code)
  59 
  60 #endif
  61 
  62 // Map BasicType to spill size in 32-bit words, matching VMReg's notion of words
  63 #ifdef _LP64
  64 static int type2spill_size[T_CONFLICT+1]={ -1, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 0, 2,  1, 2, 1, 2, -1};
  65 #else
  66 static int type2spill_size[T_CONFLICT+1]={ -1, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 0, 1, -1, 1, 1, 1, -1};
  67 #endif
  68 
  69 
  70 // Implementation of LinearScan
  71 
  72 LinearScan::LinearScan(IR* ir, LIRGenerator* gen, FrameMap* frame_map)
  73  : _compilation(ir->compilation())
  74  , _ir(ir)
  75  , _gen(gen)
  76  , _frame_map(frame_map)
  77  , _cached_blocks(*ir->linear_scan_order())
  78  , _num_virtual_regs(gen->max_virtual_register_number())
  79  , _has_fpu_registers(false)
  80  , _num_calls(-1)
  81  , _max_spills(0)
  82  , _unused_spill_slot(-1)
  83  , _intervals(0)   // initialized later with correct length
  84  , _new_intervals_from_allocation(NULL)
  85  , _sorted_intervals(NULL)
  86  , _needs_full_resort(false)


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