• d-bugmail puremagic.com (56/56) Jul 01 2019 https://issues.dlang.org/show_bug.cgi?id=20020

d-bugmail puremagic.com writes:

https://issues.dlang.org/show_bug.cgi?id=20020

          Issue ID: 20020
           Summary: Compiler should offer atomic intrinsics
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: turkeyman gmail.com

It would be classy if DMD offered a suite of intrinsic functions for the
primitive atomic operations like other compilers. It would make it much easier
to develop quality atomic support libraries.

For reference, this is the quite of intrinsics exposed my the MSVC compiler:

__MACHINE(long _InterlockedAnd(long volatile * _Value, long _Mask))
__MACHINE(short _InterlockedAnd16(short volatile * _Value, short _Mask))
__MACHINE(char _InterlockedAnd8(char volatile * _Value, char _Mask))
__MACHINE(long __MACHINECALL_CDECL_OR_DEFAULT _InterlockedCompareExchange(long
volatile * _Destination, long _Exchange, long _Comparand))
__MACHINEWVMPURE(long _InterlockedCompareExchange(long volatile * _Destination,
long _Exchange, long _Comparand))
__MACHINE(short _InterlockedCompareExchange16(short volatile * _Destination,
short _Exchange, short _Comparand))
__MACHINE(__int64 _InterlockedCompareExchange64(__int64 volatile *
_Destination, __int64 _Exchange, __int64 _Comparand))
__MACHINE(char _InterlockedCompareExchange8(char volatile * _Destination, char
_Exchange, char _Comparand))
__MACHINE(long __MACHINECALL_CDECL_OR_DEFAULT _InterlockedDecrement(long
volatile * _Addend))
__MACHINEWVMPURE(long _InterlockedDecrement(long volatile * _Addend))
__MACHINE(long __MACHINECALL_CDECL_OR_DEFAULT _InterlockedExchange(long
volatile * _Target, long _Value))
__MACHINEWVMPURE(long __MACHINECALL_CDECL_OR_DEFAULT _InterlockedExchange(long
volatile * _Target, long _Value))
__MACHINE(short _InterlockedExchange16(short volatile * _Target, short _Value))
__MACHINE(char _InterlockedExchange8(char volatile * _Target, char _Value))
__MACHINE(long __MACHINECALL_CDECL_OR_DEFAULT _InterlockedExchangeAdd(long
volatile * _Addend, long _Value))
__MACHINE(short _InterlockedExchangeAdd16(short volatile * _Addend, short
_Value))
__MACHINE(char _InterlockedExchangeAdd8(char volatile * _Addend, char _Value))
__MACHINE(long __MACHINECALL_CDECL_OR_DEFAULT _InterlockedIncrement(long
volatile * _Addend))
__MACHINEWVMPURE(long _InterlockedIncrement(long volatile * _Addend))
__MACHINE(long _InterlockedOr(long volatile * _Value, long _Mask))
__MACHINE(short _InterlockedOr16(short volatile * _Value, short _Mask))
__MACHINE(char _InterlockedOr8(char volatile * _Value, char _Mask))
__MACHINE(long _InterlockedXor(long volatile * _Value, long _Mask))
__MACHINE(short _InterlockedXor16(short volatile * _Value, short _Mask))
__MACHINE(char _InterlockedXor8(char volatile * _Value, char _Mask))
__MACHINE(void _ReadWriteBarrier(void))
__MACHINE(unsigned char _interlockedbittestandset(long volatile *, long))

--