98 case Special: st->print("r---"); break;
99 case Bad: st->print("rBAD"); break;
100 default:
101 if (r < _last_Mach_Reg) st->print("%s", Matcher::regName[r]);
102 else st->print("rS%d",r);
103 break;
104 }
105 }
106 #endif
107
108
109 //=============================================================================
110 const RegMask RegMask::Empty(
111 # define BODY(I) 0,
112 FORALL_BODY
113 # undef BODY
114 0
115 );
116
117 //=============================================================================
118 bool RegMask::is_vector(uint ireg) {
119 return (ireg == Op_VecS || ireg == Op_VecD ||
120 ireg == Op_VecX || ireg == Op_VecY || ireg == Op_VecZ );
121 }
122
123 int RegMask::num_registers(uint ireg) {
124 switch(ireg) {
125 case Op_VecZ:
126 return 16;
127 case Op_VecY:
128 return 8;
129 case Op_VecX:
130 return 4;
131 case Op_VecD:
132 case Op_RegD:
133 case Op_RegL:
134 #ifdef _LP64
135 case Op_RegP:
136 #endif
137 return 2;
138 }
139 // Op_VecS and the rest ideal registers.
140 return 1;
141 }
142
143 //------------------------------find_first_pair--------------------------------
144 // Find the lowest-numbered register pair in the mask. Return the
145 // HIGHEST register number in the pair, or BAD if no pairs.
146 OptoReg::Name RegMask::find_first_pair() const {
147 verify_pairs();
148 for( int i = 0; i < RM_SIZE; i++ ) {
149 if( _A[i] ) { // Found some bits
150 int bit = _A[i] & -_A[i]; // Extract low bit
151 // Convert to bit number, return hi bit in pair
152 return OptoReg::Name((i<<_LogWordBits)+find_lowest_bit(bit)+1);
153 }
154 }
155 return OptoReg::Bad;
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98 case Special: st->print("r---"); break;
99 case Bad: st->print("rBAD"); break;
100 default:
101 if (r < _last_Mach_Reg) st->print("%s", Matcher::regName[r]);
102 else st->print("rS%d",r);
103 break;
104 }
105 }
106 #endif
107
108
109 //=============================================================================
110 const RegMask RegMask::Empty(
111 # define BODY(I) 0,
112 FORALL_BODY
113 # undef BODY
114 0
115 );
116
117 //=============================================================================
118 bool RegMask::is_vector(Opcodes ireg) {
119 return (ireg == Opcodes::Op_VecS || ireg == Opcodes::Op_VecD ||
120 ireg == Opcodes::Op_VecX || ireg == Opcodes::Op_VecY || ireg == Opcodes::Op_VecZ );
121 }
122
123 int RegMask::num_registers(Opcodes ireg) {
124 switch(ireg) {
125 case Opcodes::Op_VecZ:
126 return 16;
127 case Opcodes::Op_VecY:
128 return 8;
129 case Opcodes::Op_VecX:
130 return 4;
131 case Opcodes::Op_VecD:
132 case Opcodes::Op_RegD:
133 case Opcodes::Op_RegL:
134 #ifdef _LP64
135 case Opcodes::Op_RegP:
136 #endif
137 return 2;
138 }
139 // Op_VecS and the rest ideal registers.
140 return 1;
141 }
142
143 //------------------------------find_first_pair--------------------------------
144 // Find the lowest-numbered register pair in the mask. Return the
145 // HIGHEST register number in the pair, or BAD if no pairs.
146 OptoReg::Name RegMask::find_first_pair() const {
147 verify_pairs();
148 for( int i = 0; i < RM_SIZE; i++ ) {
149 if( _A[i] ) { // Found some bits
150 int bit = _A[i] & -_A[i]; // Extract low bit
151 // Convert to bit number, return hi bit in pair
152 return OptoReg::Name((i<<_LogWordBits)+find_lowest_bit(bit)+1);
153 }
154 }
155 return OptoReg::Bad;
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