view src/os_cpu/solaris_x86/vm/solaris_x86_32.il @ 16524:a08a58d0736b

[SPARC] Emit compareAndSwap for AtomicInteger and AtomicLong, Removing o7 register from usable ones, as this register is always overwritten, when using Call or JumpAndLink instructions in SPARC, even callee does not overwrite explicitly, implicit exception is defined when doing integer division, parameter constraint narrowed to only register on Unary2Op, Fix SPARCTestOp, as it did a compare instead of an and with condition codes
author Stefan Anzinger <stefan.anzinger@gmail.com>
date Tue, 15 Jul 2014 19:07:29 -0700
parents b9a9ed0f8eeb
children
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//
// Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
//
// This code is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License version 2 only, as
// published by the Free Software Foundation.
//
// This code is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// version 2 for more details (a copy is included in the LICENSE file that
// accompanied this code).
//
// You should have received a copy of the GNU General Public License version
// 2 along with this work; if not, write to the Free Software Foundation,
// Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
//
// Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
// or visit www.oracle.com if you need additional information or have any
// questions.
//  
//


  // Support for u8 os::setup_fpu()
      .inline _solaris_raw_setup_fpu,1
      movl     0(%esp), %eax
      fldcw    (%eax)
      .end

  // The argument size of each inline directive is ignored by the compiler
  // and is set to 0 for compatibility reason.

  // Get the raw thread ID from %gs:0
      .inline _raw_thread_id,0
      movl     %gs:0, %eax 
      .end

  // Get current sp
      .inline _get_current_sp,0
      .volatile
      movl     %esp, %eax 
      .end

  // Get current fp
      .inline _get_current_fp,0
      .volatile
      movl     %ebp, %eax 
      .end

  // Support for os::rdtsc()
      .inline _raw_rdtsc,0
      rdtsc
      .end

  // Support for jint Atomic::add(jint inc, volatile jint* dest)
  // An additional bool (os::is_MP()) is passed as the last argument.
      .inline _Atomic_add,3
      movl     0(%esp), %eax   // inc
      movl     4(%esp), %edx   // dest
      movl     %eax, %ecx
      cmpl     $0, 8(%esp)     // MP test
      jne      1f
      xaddl    %eax, (%edx)
      jmp      2f
1:    lock
      xaddl    %eax, (%edx)
2:    addl     %ecx, %eax
      .end

  // Support for jint Atomic::xchg(jint exchange_value, volatile jint* dest).
      .inline _Atomic_xchg,2
      movl     0(%esp), %eax   // exchange_value
      movl     4(%esp), %ecx   // dest
      xchgl    (%ecx), %eax
      .end

  // Support for jint Atomic::cmpxchg(jint exchange_value, 
  //                                  volatile jint *dest, 
  //                                  jint compare_value)
  // An additional bool (os::is_MP()) is passed as the last argument.
      .inline _Atomic_cmpxchg,4
      movl     8(%esp), %eax   // compare_value
      movl     0(%esp), %ecx   // exchange_value
      movl     4(%esp), %edx   // dest
      cmp      $0, 12(%esp)    // MP test
      jne      1f
      cmpxchgl %ecx, (%edx)
      jmp      2f
1:    lock
      cmpxchgl %ecx, (%edx)
2:
      .end

  // Support for jlong Atomic::cmpxchg(jlong exchange_value,
  //                                   volatile jlong* dest,
  //                                   jlong compare_value)
  // An additional bool (os::is_MP()) is passed as the last argument.
      .inline _Atomic_cmpxchg_long,6
      pushl    %ebx
      pushl    %edi
      movl     20(%esp), %eax  // compare_value (low)
      movl     24(%esp), %edx  // compare_value (high)
      movl     16(%esp), %edi  // dest
      movl     8(%esp), %ebx   // exchange_value (low)
      movl     12(%esp), %ecx  // exchange_high (high)
      cmp      $0, 28(%esp)    // MP test
      jne      1f
      cmpxchg8b (%edi)
      jmp      2f
1:    lock
      cmpxchg8b (%edi)
2:    popl     %edi
      popl     %ebx
      .end

  // Support for jlong Atomic::load and Atomic::store.
  // void _Atomic_move_long(volatile jlong* src, volatile jlong* dst)
      .inline _Atomic_move_long,2
      movl     0(%esp), %eax   // src
      fildll    (%eax)
      movl     4(%esp), %eax   // dest
      fistpll   (%eax)
      .end

  // Support for OrderAccess::acquire()
      .inline _OrderAccess_acquire,0
      movl     0(%esp), %eax
      .end

  // Support for OrderAccess::fence()
      .inline _OrderAccess_fence,0
      lock
      addl     $0, (%esp)
      .end

  // Support for u2 Bytes::swap_u2(u2 x)
      .inline _raw_swap_u2,1
      movl     0(%esp), %eax
      xchgb    %al, %ah
      .end

  // Support for u4 Bytes::swap_u4(u4 x)
      .inline _raw_swap_u4,1
      movl     0(%esp), %eax
      bswap    %eax
      .end

  // Support for u8 Bytes::swap_u8_base(u4 x, u4 y)
      .inline _raw_swap_u8,2
      movl     4(%esp), %eax   // y
      movl     0(%esp), %edx   // x
      bswap    %eax
      bswap    %edx
      .end