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comparison src/cpu/x86/vm/c1_LIRAssembler_x86.cpp @ 11080:b800986664f4

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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32 Summary: add intrinsics using new instruction to interpreter, C1, C2, for suitable x86; add test Reviewed-by: kvn, twisti
author drchase
date Tue, 02 Jul 2013 20:42:12 -0400
parents 46f6f063b272
children f98f5d48f511
comparison
equal deleted inserted replaced
11079:738e04fb1232 11080:b800986664f4
1 /* 1 /*
2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
3510 __ call_VM_leaf(entry, 0); 3510 __ call_VM_leaf(entry, 0);
3511 3511
3512 __ bind(*stub->continuation()); 3512 __ bind(*stub->continuation());
3513 } 3513 }
3514 3514
3515 void LIR_Assembler::emit_updatecrc32(LIR_OpUpdateCRC32* op) {
3516 assert(op->crc()->is_single_cpu(), "crc must be register");
3517 assert(op->val()->is_single_cpu(), "byte value must be register");
3518 assert(op->result_opr()->is_single_cpu(), "result must be register");
3519 Register crc = op->crc()->as_register();
3520 Register val = op->val()->as_register();
3521 Register res = op->result_opr()->as_register();
3522
3523 assert_different_registers(val, crc, res);
3524
3525 __ lea(res, ExternalAddress(StubRoutines::crc_table_addr()));
3526 __ notl(crc); // ~crc
3527 __ update_byte_crc32(crc, val, res);
3528 __ notl(crc); // ~crc
3529 __ mov(res, crc);
3530 }
3515 3531
3516 void LIR_Assembler::emit_lock(LIR_OpLock* op) { 3532 void LIR_Assembler::emit_lock(LIR_OpLock* op) {
3517 Register obj = op->obj_opr()->as_register(); // may not be an oop 3533 Register obj = op->obj_opr()->as_register(); // may not be an oop
3518 Register hdr = op->hdr_opr()->as_register(); 3534 Register hdr = op->hdr_opr()->as_register();
3519 Register lock = op->lock_opr()->as_register(); 3535 Register lock = op->lock_opr()->as_register();