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      1 /*===-- sync_fetch_and_sub_4.S - ------------------------------------------===//
      2  *
      3  *                     The LLVM Compiler Infrastructure
      4  *
      5  * This file is dual licensed under the MIT and the University of Illinois Open
      6  * Source Licenses. See LICENSE.TXT for details.
      7  *
      8  *===----------------------------------------------------------------------===//
      9  *
     10  * This file implements the __sync_fetch_and_sub_4 function for the ARM
     11  * architecture.
     12  *
     13  *===----------------------------------------------------------------------===*/
     14 
     15 #include "sync-ops.h"
     16 
     17 /* "subs" is 2 bytes shorter than "sub". */
     18 #define sub_4(rD, rN, rM)  sub rD, rN, rM
     19 
     20 SYNC_OP_4(sub_4)
     21 
     22 NO_EXEC_STACK_DIRECTIVE
     23 
     24