src/hotspot/os_cpu/bsd_x86/bsd_x86_32.s

*** 633,644 ****
          ret
  
  
          # Support for int64_t Atomic::cmpxchg(int64_t exchange_value,
          #                                     volatile int64_t* dest,
!         #                                     int64_t compare_value,
!         #                                     bool is_MP)
          #
          .p2align 4,,15
          ELF_TYPE(_Atomic_cmpxchg_long,@function)
  SYMBOL(_Atomic_cmpxchg_long):
                                     #  8(%esp) : return PC
--- 633,643 ----
          ret
  
  
          # Support for int64_t Atomic::cmpxchg(int64_t exchange_value,
          #                                     volatile int64_t* dest,
!         #                                     int64_t compare_value)
          #
          .p2align 4,,15
          ELF_TYPE(_Atomic_cmpxchg_long,@function)
  SYMBOL(_Atomic_cmpxchg_long):
                                     #  8(%esp) : return PC
*** 647,660 ****
          movl     12(%esp), %ebx    # 12(%esp) : exchange_value (low)
          movl     16(%esp), %ecx    # 16(%esp) : exchange_value (high)
          movl     24(%esp), %eax    # 24(%esp) : compare_value (low)
          movl     28(%esp), %edx    # 28(%esp) : compare_value (high)
          movl     20(%esp), %edi    # 20(%esp) : dest
-         cmpl     $0, 32(%esp)      # 32(%esp) : is_MP
-         je       1f
          lock
! 1:      cmpxchg8b (%edi)
          popl     %edi
          popl     %ebx
          ret
  
  
--- 646,657 ----
          movl     12(%esp), %ebx    # 12(%esp) : exchange_value (low)
          movl     16(%esp), %ecx    # 16(%esp) : exchange_value (high)
          movl     24(%esp), %eax    # 24(%esp) : compare_value (low)
          movl     28(%esp), %edx    # 28(%esp) : compare_value (high)
          movl     20(%esp), %edi    # 20(%esp) : dest
          lock
!         cmpxchg8b (%edi)
          popl     %edi
          popl     %ebx
          ret