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comparison src/cpu/sparc/vm/relocInfo_sparc.cpp @ 164:c436414a719e

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6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions Summary: Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes to generate narrow oops compare instructions. Reviewed-by: never, rasbold
author kvn
date Wed, 21 May 2008 13:46:23 -0700
parents a61af66fc99e
children d1605aabd0a1
comparison
equal deleted inserted replaced
163:885ed790ecf0 164:c436414a719e
85 case Assembler::branch_op: 85 case Assembler::branch_op:
86 { 86 {
87 #ifdef _LP64 87 #ifdef _LP64
88 jint inst2; 88 jint inst2;
89 guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi"); 89 guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi");
90 if (format() != 0) {
91 assert(type() == relocInfo::oop_type, "only narrow oops case");
92 jint np = oopDesc::encode_heap_oop((oop)x);
93 inst &= ~Assembler::hi22(-1);
94 inst |= Assembler::hi22((intptr_t)np);
95 ip->set_long_at(0, inst);
96 inst2 = ip->long_at( NativeInstruction::nop_instruction_size );
97 guarantee(Assembler::inv_op(inst2)==Assembler::arith_op, "arith op");
98 ip->set_long_at(NativeInstruction::nop_instruction_size, ip->set_data32_simm13( inst2, (intptr_t)np));
99 break;
100 }
90 ip->set_data64_sethi( ip->addr_at(0), (intptr_t)x ); 101 ip->set_data64_sethi( ip->addr_at(0), (intptr_t)x );
91 #ifdef COMPILER2 102 #ifdef COMPILER2
92 // [RGV] Someone must have missed putting in a reloc entry for the 103 // [RGV] Someone must have missed putting in a reloc entry for the
93 // add in compiler2. 104 // add in compiler2.
94 inst2 = ip->long_at( NativeMovConstReg::add_offset ); 105 inst2 = ip->long_at( NativeMovConstReg::add_offset );