diff options
Diffstat (limited to 'contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_8.S')
| -rw-r--r-- | contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_8.S | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_8.S b/contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_8.S new file mode 100644 index 000000000000..a8035a276853 --- /dev/null +++ b/contrib/compiler-rt/lib/builtins/arm/sync_fetch_and_sub_8.S @@ -0,0 +1,24 @@ +/*===-- sync_fetch_and_sub_8.S - ------------------------------------------===// + * + * The LLVM Compiler Infrastructure + * + * This file is dual licensed under the MIT and the University of Illinois Open + * Source Licenses. See LICENSE.TXT for details. + * + *===----------------------------------------------------------------------===// + * + * This file implements the __sync_fetch_and_sub_8 function for the ARM + * architecture. + * + *===----------------------------------------------------------------------===*/ + +#include "sync-ops.h" + +#if __ARM_ARCH_PROFILE != 'M' +#define sub_8(rD_LO, rD_HI, rN_LO, rN_HI, rM_LO, rM_HI) \ + subs rD_LO, rN_LO, rM_LO ; \ + sbc rD_HI, rN_HI, rM_HI + +SYNC_OP_8(sub_8) +#endif + |