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comparison src/cpu/x86/vm/assembler_x86.cpp @ 643:c771b7f43bbf

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6378821: bitCount() should use POPC on SPARC processors and AMD+10h Summary: bitCount() should use POPC on SPARC processors where POPC is implemented directly in hardware. Reviewed-by: kvn, never
author twisti
date Fri, 13 Mar 2009 11:35:17 -0700
parents 660978a2a31a
children c517646eef23
comparison
equal deleted inserted replaced
642:660978a2a31a 643:c771b7f43bbf
2191 void Assembler::pop(Register dst) { 2191 void Assembler::pop(Register dst) {
2192 int encode = prefix_and_encode(dst->encoding()); 2192 int encode = prefix_and_encode(dst->encoding());
2193 emit_byte(0x58 | encode); 2193 emit_byte(0x58 | encode);
2194 } 2194 }
2195 2195
2196 void Assembler::popcntl(Register dst, Address src) {
2197 assert(VM_Version::supports_popcnt(), "must support");
2198 InstructionMark im(this);
2199 emit_byte(0xF3);
2200 prefix(src, dst);
2201 emit_byte(0x0F);
2202 emit_byte(0xB8);
2203 emit_operand(dst, src);
2204 }
2205
2206 void Assembler::popcntl(Register dst, Register src) {
2207 assert(VM_Version::supports_popcnt(), "must support");
2208 emit_byte(0xF3);
2209 int encode = prefix_and_encode(dst->encoding(), src->encoding());
2210 emit_byte(0x0F);
2211 emit_byte(0xB8);
2212 emit_byte(0xC0 | encode);
2213 }
2214
2196 void Assembler::popf() { 2215 void Assembler::popf() {
2197 emit_byte(0x9D); 2216 emit_byte(0x9D);
2198 } 2217 }
2199 2218
2200 void Assembler::popl(Address dst) { 2219 void Assembler::popl(Address dst) {
4076 movq(rdx, Address(rsp, 13 * wordSize)); 4095 movq(rdx, Address(rsp, 13 * wordSize));
4077 movq(rcx, Address(rsp, 14 * wordSize)); 4096 movq(rcx, Address(rsp, 14 * wordSize));
4078 movq(rax, Address(rsp, 15 * wordSize)); 4097 movq(rax, Address(rsp, 15 * wordSize));
4079 4098
4080 addq(rsp, 16 * wordSize); 4099 addq(rsp, 16 * wordSize);
4100 }
4101
4102 void Assembler::popcntq(Register dst, Address src) {
4103 assert(VM_Version::supports_popcnt(), "must support");
4104 InstructionMark im(this);
4105 emit_byte(0xF3);
4106 prefixq(src, dst);
4107 emit_byte(0x0F);
4108 emit_byte(0xB8);
4109 emit_operand(dst, src);
4110 }
4111
4112 void Assembler::popcntq(Register dst, Register src) {
4113 assert(VM_Version::supports_popcnt(), "must support");
4114 emit_byte(0xF3);
4115 int encode = prefixq_and_encode(dst->encoding(), src->encoding());
4116 emit_byte(0x0F);
4117 emit_byte(0xB8);
4118 emit_byte(0xC0 | encode);
4081 } 4119 }
4082 4120
4083 void Assembler::popq(Address dst) { 4121 void Assembler::popq(Address dst) {
4084 InstructionMark im(this); 4122 InstructionMark im(this);
4085 prefixq(dst); 4123 prefixq(dst);